CN105821272B - A kind of wear-resistant molybdenum alloy material cut and preparation method thereof - Google Patents
A kind of wear-resistant molybdenum alloy material cut and preparation method thereof Download PDFInfo
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- 229910001182 Mo alloy Inorganic materials 0.000 title claims abstract description 73
- 239000000956 alloy Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000011812 mixed powder Substances 0.000 claims abstract description 71
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 33
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 33
- 238000001035 drying Methods 0.000 claims abstract description 23
- 238000000498 ball milling Methods 0.000 claims abstract description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 17
- 238000004886 process control Methods 0.000 claims abstract description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001257 hydrogen Substances 0.000 claims abstract description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 13
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- 238000005056 compaction Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 229910052796 boron Inorganic materials 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- 229910052726 zirconium Inorganic materials 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 36
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 35
- 239000000843 powder Substances 0.000 claims description 33
- 239000002253 acid Substances 0.000 claims description 19
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 230000009467 reduction Effects 0.000 claims description 17
- 239000010936 titanium Substances 0.000 claims description 17
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 16
- 239000011733 molybdenum Substances 0.000 claims description 16
- 239000011609 ammonium molybdate Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 13
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 12
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 12
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 12
- 229940010552 ammonium molybdate Drugs 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000000284 extract Substances 0.000 claims description 12
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 12
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 11
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 11
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 11
- 238000002425 crystallisation Methods 0.000 claims description 11
- 230000008025 crystallization Effects 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 11
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 235000019441 ethanol Nutrition 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 229910001868 water Inorganic materials 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 7
- 239000011572 manganese Substances 0.000 claims description 7
- 239000010955 niobium Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000003828 vacuum filtration Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 12
- 239000002131 composite material Substances 0.000 abstract description 11
- 238000000227 grinding Methods 0.000 abstract description 6
- 238000001953 recrystallisation Methods 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract description 5
- 238000005275 alloying Methods 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 239000012530 fluid Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- CEKJAYFBQARQNG-UHFFFAOYSA-N cadmium zinc Chemical compound [Zn].[Cd] CEKJAYFBQARQNG-UHFFFAOYSA-N 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009938 salting Methods 0.000 description 2
- IPCXNCATNBAPKW-UHFFFAOYSA-N zinc;hydrate Chemical compound O.[Zn] IPCXNCATNBAPKW-UHFFFAOYSA-N 0.000 description 2
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- KYIDJMYDIPHNJS-UHFFFAOYSA-N ethanol;octadecanoic acid Chemical compound CCO.CCCCCCCCCCCCCCCCCC(O)=O KYIDJMYDIPHNJS-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- -1 whisker Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0031—Matrix based on refractory metals, W, Mo, Nb, Hf, Ta, Zr, Ti, V or alloys thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a kind of wear-resistant molybdenum alloy material cut, Mo, Al comprising certain part by weight2O3、Cr、Y2O3, Ti, Ni, Nb, Zr, C, Mn and B.Present invention also offers the preparation method of the molybdenum alloy material, comprise the following steps：First, ammonium tetramolybdate is prepared；2nd, Al is prepared2O3/ Mo mixed-powders；Step 3: by Al2O3/ Mo mixed-powders and other constituents and process control agent ball milling mixing are uniform, and mixed-powder is obtained after drying；4th, cold isostatic compaction, obtains blank；5th, sinter in a hydrogen atmosphere, obtain molybdenum alloy material.The present invention makes Al by multi-element doping and particle strengthening2O3Particle and other alloying elements are evenly distributed in molybdenum-base composite material, reduce molybdenum alloy fragility, molybdenum-base composite material is obtained higher resistance to grinding performance, higher recrystallization temperature and excellent combination property.
Description
Technical field
The invention belongs to rare metallic material processing technique field, and in particular to a kind of wear-resistant molybdenum alloy material cut and its
Preparation method.
Background technology
Metal-base composites (MMCs) is using metal or alloy as matrix, with fiber, whisker, particle etc. for reinforcement
Composite.MMCs has come out more than 40 years, and it has excellent physical such as high specific strength, specific modulus, wear-resistant, high temperature resistant
Energy and mechanical property, become the key areas of various countries' research in new high-tech exploitation.
Molybdenum is a kind of metallic element, high with fusing point, the low series of advantages of thermal coefficient of expansion, but molybdenum and molybdenum alloy tool
Have the shortcomings that black brittleness, recrystallization fragility and high-temperature oxidation resistance are poor, limit molybdenum and its alloy in structural material side
The use in face.
Aluminum oxide has high-melting-point, high rigidity and excellent chemical stability, be widely used in making various refractory brick,
Fire-clay crucible, high temperature resistant test apparatus and grinding agent, fire retardant, inserts etc.；But its poor toughness, it is impossible to it is subjected to larger
The shortcomings of mechanical shock, also limit its application.
Utilize Mo and Al2O3Respective advantage, can be made combination property better than pure Mo and pure Al2O3Composite, mesh
The preceding research for this composite has been reported, but is studied also insufficient.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of wear-resistant molybdenum cut for above-mentioned the deficiencies in the prior art
Alloy material.By multi-element doping and particle strengthening in the material, make Al2O3Particle is evenly distributed in molybdenum-base composite material,
Molybdenum alloy fragility is reduced, molybdenum-base composite material is obtained higher resistance to grinding performance, higher recrystallization temperature and excellent
Combination property.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of wear-resistant molybdenum alloy material cut, it is special
Levy and be, include the composition of following parts by weight：70~72 parts of Mo, Al2O39~11 parts, 6~8 parts of Cr, Y2O35~8 parts, Ti
3~5 parts, 3~4 parts of Ni, 2~4 parts of Nb, 1~3 part of Zr, 1~2 part of C, 1~2 part of Mn, 0.1~0.15 part of B.
Above-mentioned a kind of wear-resistant molybdenum alloy material cut, it is characterised in that include the composition of following parts by weight：71 parts of Mo,
Al2O310 parts, 7 parts of Cr, Y2O36 parts, 4 parts of Ti, 3.5 parts of Ni, 3 parts of Nb, 2 parts of Zr, 1.5 parts of C, 1.5 parts of Mn, B
0.12 part.
In addition, present invention also offers a kind of method for preparing the above-mentioned wear-resistant molybdenum alloy material cut, it is characterised in that should
Method comprises the following steps：
Step 1: ammonium molybdate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then to ammonium molybdate solution
The heavy crystallization of acid is carried out, vacuum filtration, washing and drying process are sequentially passed through afterwards, ammonium tetramolybdate is obtained；
Step 2: aluminum nitrate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then by described in step one
Ammonium tetramolybdate is added in aluminum nitrate solution and is well mixed, and the pH value of mixed liquor is adjusted into 1.5~2.0 using citric acid, quiet
Postpone and obtain colloidal sol, after then colloidal sol is dried and crushed, temperature be calcining 30min under conditions of 560 DEG C~570 DEG C~
60min, obtains Al2O3/ molybdenum oxide mixed-powder, afterwards by the Al2O3/ molybdenum oxide mixed-powder is in hydrogen atmosphere, temperature
Spend to reduce 8h~10h under conditions of 650 DEG C~750 DEG C, obtain Al2O3/ Mo mixed-powders；
Step 3: weighing chromium powder, Y according to the component requirements that need to prepare molybdenum alloy material2O3Powder, titanium valve, nickel powder, niobium powder, zirconium
Powder, carbon dust, manganese powder and boron powder, then by Al described in the various powder weighed and step 22O3/ Mo mixed-powders and process
Controlling agent adds ball milling mixing in planetary ball mill and uniformly, mixed-powder is obtained after drying；The process control agent is tristearin
The ethanol solution of acid；
Step 4: carrying out cold isostatic compaction to mixed-powder described in step 3, blank is obtained；The isostatic cool pressing into
The detailed process of type is：First, part mixed-powder is added into vibration tamp in gum cover, extracts in gum cover fluid sealant after air
Set, pressurize 5min after 140MPa~150MPa is then forced into 15MPa/min~20MPa/min compression rate, afterwards with
15MPa/min~20MPa/min rate of pressure reduction is down to normal pressure；Then, remaining mixed-powder is added into vibration tamp in gum cover,
Extract in gum cover seal rubber sleeve after air, then with 25MPa/min~30MPa/min compression rate be forced into 280MPa~
Pressurize 1min~2min, is depressurized to 100MPa, finally with 15MPa/min~20MPa/min rate of pressure reduction afterwards after 300MPa
Normal pressure is down to 10MPa/min~15MPa/min rate of pressure reduction；
Step 5: in a hydrogen atmosphere, by blank described in step 4 under conditions of temperature is 1920 DEG C~1950 DEG C
19h~20h is sintered, the wear-resistant molybdenum alloy material cut is obtained after furnace cooling.
Above-mentioned method, it is characterised in that the temperature dried described in step one is 100 DEG C~110 DEG C, the drying
Time is that the water content for making solid matter is down to 0.5g/cm3~0.8g/cm3。
Above-mentioned method, it is characterised in that Al described in step 22O3The average grain diameter of Mo powder is 5 μ in/Mo mixed-powders
M~10 μm, Al2O3The average grain diameter of powder is 350nm~450nm；Chromium powder described in step 3, Y2O3Powder, titanium valve, nickel powder, niobium
Powder, zirconium powder, carbon dust, the average grain diameter of manganese powder and boron powder are 15 μm~18 μm.
Above-mentioned method, it is characterised in that the time of ball milling described in step 3 is 4h~6h, the speed of ball milling is
280r/min~320r/min, ball material mass ratio is (5~7): 1, the ball milling is carried out under the protection of nitrogen or inert gas.
Above-mentioned method, it is characterised in that the addition of process control agent described in step 3 is Al2O3/ Mo mixed-powders
The 2%~3% of quality.
Above-mentioned method, it is characterised in that stearic ethanol solution is by stearic acid and absolute ethyl alcohol described in step 3
Well mixed form at 2: 1 by volume.
Above-mentioned method, it is characterised in that described in step 3 dry temperature be 50 DEG C~60 DEG C, the drying when
Between be 5h~7h.
Above-mentioned method, it is characterised in that part mixed-powder described in step 4 account for mixed-powder total amount 40%~
50%.
The present invention has advantages below compared with prior art：
1st, the wear-resistant molybdenum alloy material hardness cut of the present invention is high, more than 500Hv；Anti- grinding performance is good, and good toughness uses peace
Complete reliable service life can improve 2~3 times than common molybdenum alloy material；
2nd, the wear-resistant molybdenum alloy material cut of the present invention, its crystal grain is all very tiny, and density and microhardness are dramatically increased, energy
Enough reach the purpose for improving molybdenum alloy wear resistance at elevated temperature；
3rd, the present invention makes Al by multi-element doping and particle strengthening2O3Particle is evenly distributed in molybdenum-base composite material,
The corresponding function of each element is played, molybdenum alloy fragility is reduced, molybdenum-base composite material is obtained higher resistance to grinding performance, higher
Recrystallization temperature and excellent combination property.
4th, preparation method of the present invention effectively reduces impurity content in ammonium molybdate, makes ammonium tetramolybdate purity significantly
Improve, and the product quality prepared is stable, whole procedure technique is simple, easily controllable, enhancing particle is tiny, distribution is compared
Uniformly, with very wide application prospect.
The present invention is described in further detail with reference to embodiment.
Embodiment
Embodiment 1
The wear-resistant molybdenum alloy material cut of the present embodiment includes the composition of following parts by weight：70 parts of Mo, Al2O311 parts, Cr 6
Part, Y2O38 parts, 3 parts of Ti, 4 parts of Ni, 2 parts of Nb, 3 parts of Zr, 1 part of C, 2 parts of Mn, 0.1 part of B.
The preparation method of the wear-resistant molybdenum alloy material cut of the present embodiment comprises the following steps：
Step 1: ammonium molybdate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then using nitric acid to molybdenum
Acid ammonium solution carries out the heavy crystallization of acid, the solidliquid mixture containing crystalline solid is placed in vacuum suction filtration tank be filtered by vacuum afterwards,
After pure water rinsing more than 3 times, it is placed in the water content dried in drying box in 100 DEG C to solid matter and is down to 0.8g/cm3, obtain
To ammonium tetramolybdate；
Step 2: aluminum nitrate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then by described in step one
Ammonium tetramolybdate is added in aluminum nitrate solution and is well mixed, and uses citric acid to be adjusted to the pH value of mixed liquor to obtain after 1.5, standing
To colloidal sol, colloidal sol is then formed into dry state gel in 125 DEG C of vacuum drying again after heating evaporation under conditions of temperature is 90 DEG C,
Then after dry state gel is crushed, 30min is calcined under conditions of temperature is 570 DEG C, Al is obtained2O3/ molybdenum oxide mixed powder
End, afterwards by the Al2O3/ molybdenum oxide mixed-powder is obtained in hydrogen atmosphere, temperature to reduce 10h under conditions of 650 DEG C
Al2O3/ Mo mixed-powders；The Al2O3The average grain diameter of Mo powder is 5 μm, Al in/Mo mixed-powders2O3The average grain diameter of powder is
450nm；
Step 3: weighing chromium powder, Y according to the component requirements that need to prepare molybdenum alloy material2O3Powder, titanium valve, nickel powder, niobium powder, zirconium
Powder, carbon dust, manganese powder and boron powder, then by Al described in the various powder weighed and step 22O3/ Mo mixed-powders and process
Controlling agent adds ball milling mixing in planetary ball mill and uniformly, mixed-powder is obtained after drying；The process control agent is tristearin
The ethanol solution of acid, the addition of the process control agent is Al2O3The 2% of/Mo mixed-powder quality；The time of the ball milling
For 5h, ball material mass ratio is 5: 1, and ball milling speed is 320r/min, and the ball milling is carried out under nitrogen protection；It is described stearic
Ethanol solution is by stearic acid and absolute ethyl alcohol by volume 2:1 mixed preparing is formed；The temperature of the drying is 60 DEG C, is dried
Time is 5h；The chromium powder, Y2O3Powder, titanium valve, nickel powder, niobium powder, zirconium powder, carbon dust, the average grain diameter of manganese powder and boron powder are 15 μ
m；
Step 4: carrying out cold isostatic compaction to mixed-powder described in step 3, blank is obtained；The isostatic cool pressing into
The detailed process of type is：First, part mixed-powder is added into vibration tamp in gum cover, extracts in gum cover fluid sealant after air
Set, the gum cover for installing powder is loaded in iron cage, immersion hydraulic fluid；Then it is forced into 20MPa/min compression rate
Pressurize 5min after 140MPa, is down to normal pressure with 20MPa/min rate of pressure reduction afterwards；Then, remaining mixed-powder is added into glue
Vibration tamp in set, extracts in gum cover seal rubber sleeve after air, and the gum cover that will install powder loads iron cage, immerses hydraulic fluid
In；Then pressurize 1min after 300MPa is forced into 25MPa/min compression rate, afterwards with 20MPa/min rate of pressure reduction
100MPa is depressurized to, normal pressure is finally down to 10MPa/min rate of pressure reduction；The part mixed-powder accounts for mixed-powder total amount
50%；
Step 5: in a hydrogen atmosphere, blank described in step 4 is sintered into 19h under conditions of temperature is 1950 DEG C,
The wear-resistant molybdenum alloy material cut is obtained after furnace cooling.
Molybdenum alloy material made to the present embodiment carries out following detect：
1st, microcosmic detection：
The made molybdenum alloy material of the present embodiment is sequentially passed through polish, polish and corrosive agent corrosion after, metallographic observation is made
Sample, wherein corrosive agent are by nitric acid, sulfuric acid and deionized water HNO by volume3∶H2SO4∶H2O=1: 1: 4 mixed preparings are formed.
The metallographic specimen is observed under ESEM and understood：Pure molybdenum sintered body, about 30 μm of average grain size, crystal boundary is very narrow；And
The made molybdenum alloy material of the present embodiment only visible black alumina particle, the crystal boundary for the crystal grain of matrix, i.e. matrix do not occur does not have
It is corroded out.
2nd, Vickers hardness is detected：
By the Vickers hardness of the made molybdenum alloy material of the present embodiment for pure Mo substrate, hardness has larger carry
Height, is improved to 517Hv from the 230Hv of pure molybdenum.
3rd, the corrosive nature detection in different solutions：
The made molybdenum alloy material of the present embodiment and polarization curve of the matrix molybdenum in NaCl solution there are into larger difference, base
The current potential corrigendum of body molybdenum, thus more resistant to corrosion；The made molybdenum alloy material of the present embodiment and polarization of the matrix molybdenum in NaOH solution
Curve is very much like, so as to draw the addition for strengthening phase in NaOH solution without the polarization behavior for substantially changing metal molybdenum.Will
The corrosion of the made molybdenum alloy material of the present embodiment more resistance to salting liquid for alkali, its corruption in alkali lye and salting liquid
Erosion sensitive property is more or less the same.
Detected more than, the hardness of the made molybdenum alloy material of the present embodiment is high, reaches 517Hv；Anti- grinding performance
Good, good toughness is safe and reliable, and service life can improve 2~3 times than common molybdenum alloy material；Molybdenum alloy crystal grain is very thin
Small, density and microhardness are dramatically increased, so as to reach the purpose for improving molybdenum alloy wear resistance at elevated temperature.
Embodiment 2
The wear-resistant molybdenum alloy material cut of the present embodiment includes the composition of following parts by weight：72 parts of Mo, Al2O39 parts, Cr 8
Part, Y2O35 parts, 5 parts of Ti, 3 parts of Ni, 4 parts of Nb, 1 part of Zr, 2 parts of C, 1 part of Mn, 0.15 part of B.
The preparation method of the wear-resistant molybdenum alloy material cut of the present embodiment comprises the following steps：
Step 1: ammonium molybdate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then using nitric acid to molybdenum
Acid ammonium solution carries out the heavy crystallization of acid, the solidliquid mixture containing crystalline solid is placed in vacuum suction filtration tank be filtered by vacuum afterwards,
After pure water rinsing more than 3 times, it is placed in the water content dried in drying box in 110 DEG C to solid matter and is down to 0.5g/cm3, obtain
To ammonium tetramolybdate；
Step 2: aluminum nitrate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then by described in step one
Ammonium tetramolybdate is added in aluminum nitrate solution and is well mixed, and uses citric acid to be adjusted to the pH value of mixed liquor to obtain after 2.0, standing
To colloidal sol, colloidal sol is then formed into dry state gel in 125 DEG C of vacuum drying again after heating evaporation under conditions of temperature is 90 DEG C,
Then after dry state gel is crushed, 60min is calcined under conditions of temperature is 560 DEG C, Al is obtained2O3/ molybdenum oxide mixed powder
End, afterwards by the Al2O3/ molybdenum oxide mixed-powder is obtained in hydrogen atmosphere, temperature to reduce 8h under conditions of 750 DEG C
Al2O3/ Mo mixed-powders；The Al2O3The average grain diameter of Mo powder is 10 μm, Al in/Mo mixed-powders2O3The average grain diameter of powder is
350nm；
Step 3: weighing chromium powder, Y according to the component requirements that need to prepare molybdenum alloy material2O3Powder, titanium valve, nickel powder, niobium powder, zirconium
Powder, carbon dust, manganese powder and boron powder, then by Al described in the various powder weighed and step 22O3/ Mo mixed-powders and process
Controlling agent adds ball milling mixing in planetary ball mill and uniformly, mixed-powder is obtained after drying；The process control agent is tristearin
The ethanol solution of acid, the addition of the process control agent is Al2O3The 3% of/Mo mixed-powder quality；The time of the ball milling
For 6h, ball material mass ratio is 7: 1, and ball milling speed is 280r/min, and the ball milling is carried out under argon gas protection；It is described stearic
Ethanol solution is by stearic acid and absolute ethyl alcohol by volume 2:1 mixed preparing is formed；The temperature of the drying is 50 DEG C, is dried
Time is 7h；The chromium powder, Y2O3Powder, titanium valve, nickel powder, niobium powder, zirconium powder, carbon dust, the average grain diameter of manganese powder and boron powder are 18 μ
m；
Step 4: carrying out cold isostatic compaction to mixed-powder described in step 3, blank is obtained；The isostatic cool pressing into
The detailed process of type is：First, part mixed-powder is added into vibration tamp in gum cover, extracts in gum cover fluid sealant after air
Set, the gum cover for installing powder is loaded in iron cage, immersion hydraulic fluid；Then it is forced into 15MPa/min compression rate
Pressurize 5min after 150MPa, is down to normal pressure with 15MPa/min rate of pressure reduction afterwards；Then, remaining mixed-powder is added into glue
Vibration tamp in set, extracts in gum cover seal rubber sleeve after air, and the gum cover that will install powder loads iron cage, immerses hydraulic fluid
In；Then pressurize 1.5min after 280MPa is forced into 30MPa/min compression rate, afterwards with 15MPa/min decompression speed
Rate is depressurized to 100MPa, is finally down to normal pressure with 15MPa/min rate of pressure reduction；It is total that the part mixed-powder accounts for mixed-powder
The 40% of amount；
Step 5: in a hydrogen atmosphere, blank described in step 4 is sintered into 20h under conditions of temperature is 1920 DEG C,
The wear-resistant molybdenum alloy material cut is obtained after furnace cooling.
Carry out microcosmic detection, Vickers hardness detection successively to the made molybdenum alloy material of the present embodiment and in different solutions
Corrosive nature detection.Detected more than, the hardness of the made molybdenum alloy material of the present embodiment is high, reaches 503Hv；It is wear-resistant
Cut performance good, good toughness is safe and reliable, service life can improve 2~3 times than common molybdenum alloy material；Molybdenum alloy crystal grain
Very tiny, density and microhardness are dramatically increased, so as to reach the purpose for improving molybdenum alloy wear resistance at elevated temperature.
Embodiment 3
The wear-resistant molybdenum alloy material cut of the present embodiment includes the composition of following parts by weight：71 parts of Mo, Al2O310 parts, Cr 7
Part, Y2O36 parts, 4 parts of Ti, 3.5 parts of Ni, 3 parts of Nb, 2 parts of Zr, 1.5 parts of C, 1.5 parts of Mn, 0.12 part of B.
The preparation method of the wear-resistant molybdenum alloy material cut of the present embodiment comprises the following steps：
Step 1: ammonium molybdate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then using nitric acid to molybdenum
Acid ammonium solution carries out the heavy crystallization of acid, the solidliquid mixture containing crystalline solid is placed in vacuum suction filtration tank be filtered by vacuum afterwards,
After pure water rinsing more than 3 times, it is placed in the water content dried in drying box in 105 DEG C to solid matter and is down to 0.7g/cm3, obtain
To ammonium tetramolybdate；
Step 2: aluminum nitrate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then by described in step one
Ammonium tetramolybdate is added in aluminum nitrate solution and is well mixed, and uses citric acid to be adjusted to the pH value of mixed liquor to obtain after 1.8, standing
To colloidal sol, colloidal sol is then formed into dry state gel in 125 DEG C of vacuum drying again after heating evaporation under conditions of temperature is 90 DEG C,
Then after dry state gel is crushed, 45min is calcined under conditions of temperature is 565 DEG C, Al is obtained2O3/ molybdenum oxide mixed powder
End, afterwards by the Al2O3/ molybdenum oxide mixed-powder is obtained in hydrogen atmosphere, temperature to reduce 9h under conditions of 700 DEG C
Al2O3/ Mo mixed-powders；The Al2O3The average grain diameter of Mo powder is 8 μm, Al in/Mo mixed-powders2O3The average grain diameter of powder is
400nm；
Step 3: weighing chromium powder, Y according to the component requirements that need to prepare molybdenum alloy material2O3Powder, titanium valve, nickel powder, niobium powder, zirconium
Powder, carbon dust, manganese powder and boron powder, then by Al described in the various powder weighed and step 22O3/ Mo mixed-powders and process
Controlling agent adds ball milling mixing in planetary ball mill and uniformly, mixed-powder is obtained after drying；The process control agent is tristearin
The ethanol solution of acid, the addition of the process control agent is Al2O3The 2.5% of/Mo mixed-powder quality；The ball milling when
Between be 4h, ball material mass ratio be 6: 1, ball milling speed is 300r/min, the ball milling argon gas protection under carry out；The stearic acid
Ethanol solution by stearic acid and absolute ethyl alcohol, 2: 1 mixed preparings are formed by volume；The temperature of the drying is 55 DEG C, is dried
Time be 6h；The chromium powder, Y2O3Powder, titanium valve, nickel powder, niobium powder, zirconium powder, carbon dust, the average grain diameter of manganese powder and boron powder are 17
μm；
Step 4: carrying out cold isostatic compaction to mixed-powder described in step 3, blank is obtained；The isostatic cool pressing into
The detailed process of type is：First, part mixed-powder is added into vibration tamp in gum cover, extracts in gum cover fluid sealant after air
Set, the gum cover for installing powder is loaded in iron cage, immersion hydraulic fluid；Then it is forced into 18MPa/min compression rate
Pressurize 5min after 145MPa, is down to normal pressure with 18MPa/min rate of pressure reduction afterwards；Then, remaining mixed-powder is added into glue
Vibration tamp in set, extracts in gum cover seal rubber sleeve after air, and the gum cover that will install powder loads iron cage, immerses hydraulic fluid
In；Then pressurize 2min after 290MPa is forced into 27MPa/min compression rate, afterwards with 18MPa/min rate of pressure reduction
100MPa is depressurized to, normal pressure is finally down to 12MPa/min rate of pressure reduction；The part mixed-powder accounts for mixed-powder total amount
45%；
Step 5: in a hydrogen atmosphere, blank described in step 4 is sintered under conditions of temperature is 1930 DEG C
The wear-resistant molybdenum alloy material cut is obtained after 19.5h, furnace cooling.
Carry out microcosmic detection, Vickers hardness detection successively to the made molybdenum alloy material of the present embodiment and in different solutions
Corrosive nature detection.Tested more than, the hardness of the made molybdenum alloy material of the present embodiment is high, reaches 511Hv；It is wear-resistant
Cut performance good, good toughness is safe and reliable, service life can improve 2~3 times than common molybdenum alloy material；Molybdenum alloy crystal grain
Very tiny, density and microhardness are dramatically increased, so as to reach the purpose for improving molybdenum alloy wear resistance at elevated temperature.
The heavy crystallization of acid, which prepares ammonium tetramolybdate, in above-described embodiment can use existing process, can also use following selection process：
Preparation proportion is 1.14g/cm3~1.16g/cm3Ammonium molybdate solution, squeezed into after filtering in the heavy crystallization kettle of acid, stir and be passed through nitre
Acid, when solution ph reaches 4, stops acid adding；Solution temperature and keeping temperature are 50 DEG C ± 5 DEG C in detection crystallization kettle afterwards,
Continue slow acid adding；When pH value reaches 2~2.5, stop acid adding；Crystallization kettle valve is opened, is made in feed liquid inflow filter；When
After material is drained, eluted and be dehydrated；The material in centrifuge is contained into polybag afterwards, and plastic bag mouth is pricked
Tightly；The polybag that will be equipped with material is transferred in drying chamber, starts steam valve heating, stops rising when temperature is raised to 70 ± 5 DEG C
Temperature, keeps temperature 6h~7h；After drying time reaches, material is moved on in stainless steel charging tray, under conditions of 70 ± 5 DEG C after
After continuous drying 2h~4h, i.e. crystallization is completed.The ammonium molybdate solution carries out filtering and impurity removing using electric drive membrane separator.
The zinc powder of pore creating material can use existing zinc powder product in above-described embodiment, can also use following selection process system
：Using natural gas as heating source, zinc-melting furnace is preheated, furnace temperature is raised；Zinc ingot metal is put into, continuation is added to zinc-melting furnace
Heat, when furnace temperature is increased to 520~580 DEG C, zinc ingot metal is fused into zinc water；Zinc water is imported in reverberatory furnace or kier, with natural
Gas is heating source, controls 470 DEG C~480 DEG C of bath temperature, stands 30h, to reach that melt is layered, and upper strata is melt refining
Zinc；Remove the scum silica frost of weld pool surface；The melt zinc concentrate that layering is obtained is put into lead tower holding furnace and preserved, and temperature control exists
590 DEG C~610 DEG C；Melt zinc concentrate is imported in lead tower, controls temperature to make zinc cadmium therein and height boiling for 900 DEG C~1000 DEG C
Point impurity lead and iron separation；The zinc cadmium vapor evaporated from lead tower is condensed into Zn-Cd alloy melt in lead tower condenser, and
It is conducted into cadmium tower, 850 DEG C~900 DEG C of control cadmium tower chamber temperature makes cadmium impurity be separated with zinc, by pure zinc fume
Import in zinc powder condenser, zinc powder condenser is cooled by water circulation；Zinc fume is quenched to 90 DEG C after entering zinc powder condenser
~110 DEG C, zinc fume becomes zinc powder and falls into storage in powder-receiving hopper；Zinc powder in powder-receiving hopper is sequentially passed through into mixer and classification
Machine, finally obtains finished product high-purity zinc powder, then sent into by conveyance conduit in finished product bin, the conveyance conduit from classification motor spindle
It is passed through CO2Gas, and keep malleation.
In summary, the present invention makes Al by multi-element doping and particle strengthening2O3Particle is evenly distributed on molybdenum base and is combined
In material, the corresponding function of each element is played, molybdenum alloy fragility is reduced, molybdenum-base composite material is obtained higher resistance to grindability
Energy, higher recrystallization temperature and excellent combination property.In addition, preparation method of the present invention effectively reduces ammonium molybdate
Middle impurity content, increases substantially ammonium tetramolybdate purity, and the product quality prepared is stable, whole procedure technique letter
Single, easily controllable, enhancing particle is tiny, be distributed than more uniform, with very wide application prospect.
Embodiment described above, is only presently preferred embodiments of the present invention, not the present invention is imposed any restrictions.Every basis
Any simple modification, change and equivalence change that the technology of the present invention is substantially made to above example, still fall within the present invention
In the protection domain of technical scheme.
Claims (10)
1. a kind of wear-resistant molybdenum alloy material cut, it is characterised in that be composed of the following components in parts by weight：70~72 parts of Mo,
Al2O39~11 parts, 6~8 parts of Cr, Y2O35~8 parts, 3~5 parts of Ti, 3~4 parts of Ni, 2~4 parts of Nb, 1~3 part of Zr, C
1~2 part, 1~2 part of Mn, 0.1~0.15 part of B；
The preparation method of the wear-resistant molybdenum alloy material cut comprises the following steps：
Step 1: preparing ammonium molybdate solution according to the component requirements that need to prepare molybdenum alloy material, then ammonium molybdate solution is carried out
The heavy crystallization of acid, sequentially passes through vacuum filtration, washing and drying process, obtains ammonium tetramolybdate afterwards；
Step 2: aluminum nitrate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then by four molybdenum described in step one
Sour ammonium is added in aluminum nitrate solution and is well mixed, and the pH value of mixed liquor is adjusted to after 1.5~2.0, standing using citric acid
Colloidal sol is obtained, is to calcine 30min~60min under conditions of 560 DEG C~570 DEG C in temperature after then colloidal sol is dried and crushed,
Obtain Al2O3/ molybdenum oxide mixed-powder, afterwards by the Al2O3/ molybdenum oxide mixed-powder is in hydrogen atmosphere, temperature
8h~10h is reduced under conditions of 650 DEG C~750 DEG C, Al is obtained2O3/ Mo mixed-powders；
Step 3: weighing chromium powder, Y according to the component requirements that need to prepare molybdenum alloy material2O3Powder, titanium valve, nickel powder, niobium powder, zirconium powder,
Carbon dust, manganese powder and boron powder, then by Al described in the various powder weighed and step 22O3/ Mo mixed-powders and process control
Agent adds ball milling mixing in planetary ball mill and uniformly, mixed-powder is obtained after drying；The process control agent is stearic
Ethanol solution；
Step 4: carrying out cold isostatic compaction to mixed-powder described in step 3, blank is obtained；The cold isostatic compaction
Detailed process is：First, part mixed-powder is added into vibration tamp in gum cover, extracts in gum cover seal rubber sleeve after air, so
Pressurize 5min after 140MPa~150MPa is forced into 15MPa/min~20MPa/min compression rate afterwards, afterwards with 15MPa/
Min~20MPa/min rate of pressure reduction is down to normal pressure；Then, remaining mixed-powder is added into vibration tamp in gum cover, extracts glue
Seal rubber sleeve after air, is then forced into after 280MPa~300MPa with 25MPa/min~30MPa/min compression rate in set
Pressurize 1min~2min, is depressurized to 100MPa, finally with 10MPa/ with 15MPa/min~20MPa/min rate of pressure reduction afterwards
Min~15MPa/min rate of pressure reduction is down to normal pressure；
Step 5: in a hydrogen atmosphere, blank described in step 4 is sintered under conditions of temperature is 1920 DEG C~1950 DEG C
The wear-resistant molybdenum alloy material cut is obtained after 19h~20h, furnace cooling.
2. a kind of wear-resistant molybdenum alloy material cut according to claim 1, it is characterised in that by the composition of following parts by weight
Composition：71 parts of Mo, Al2O310 parts, 7 parts of Cr, Y2O36 parts, 4 parts of Ti, 3.5 parts of Ni, 3 parts of Nb, 2 parts of Zr, 1.5 parts of C,
0.12 part of 1.5 parts of Mn, B.
3. a kind of method for preparing the wear-resistant molybdenum alloy material cut as claimed in claim 1 or 2, it is characterised in that this method bag
Include following steps：
Step 1: preparing ammonium molybdate solution according to the component requirements that need to prepare molybdenum alloy material, then ammonium molybdate solution is carried out
The heavy crystallization of acid, sequentially passes through vacuum filtration, washing and drying process, obtains ammonium tetramolybdate afterwards；
Step 2: aluminum nitrate solution is prepared according to the component requirements that need to prepare molybdenum alloy material, then by four molybdenum described in step one
Sour ammonium is added in aluminum nitrate solution and is well mixed, and the pH value of mixed liquor is adjusted to after 1.5~2.0, standing using citric acid
Colloidal sol is obtained, is to calcine 30min~60min under conditions of 560 DEG C~570 DEG C in temperature after then colloidal sol is dried and crushed,
Obtain Al2O3/ molybdenum oxide mixed-powder, afterwards by the Al2O3/ molybdenum oxide mixed-powder is in hydrogen atmosphere, temperature
8h~10h is reduced under conditions of 650 DEG C~750 DEG C, Al is obtained2O3/ Mo mixed-powders；
Step 3: weighing chromium powder, Y according to the component requirements that need to prepare molybdenum alloy material2O3Powder, titanium valve, nickel powder, niobium powder, zirconium powder,
Carbon dust, manganese powder and boron powder, then by Al described in the various powder weighed and step 22O3/ Mo mixed-powders and process control
Agent adds ball milling mixing in planetary ball mill and uniformly, mixed-powder is obtained after drying；The process control agent is stearic
Ethanol solution；
Step 4: carrying out cold isostatic compaction to mixed-powder described in step 3, blank is obtained；The cold isostatic compaction
Detailed process is：First, part mixed-powder is added into vibration tamp in gum cover, extracts in gum cover seal rubber sleeve after air, so
Pressurize 5min after 140MPa~150MPa is forced into 15MPa/min~20MPa/min compression rate afterwards, afterwards with 15MPa/
Min~20MPa/min rate of pressure reduction is down to normal pressure；Then, remaining mixed-powder is added into vibration tamp in gum cover, extracts glue
Seal rubber sleeve after air, is then forced into after 280MPa~300MPa with 25MPa/min~30MPa/min compression rate in set
Pressurize 1min~2min, is depressurized to 100MPa, finally with 10MPa/ with 15MPa/min~20MPa/min rate of pressure reduction afterwards
Min~15MPa/min rate of pressure reduction is down to normal pressure；
Step 5: in a hydrogen atmosphere, blank described in step 4 is sintered under conditions of temperature is 1920 DEG C~1950 DEG C
The wear-resistant molybdenum alloy material cut is obtained after 19h~20h, furnace cooling.
4. method according to claim 3, it is characterised in that the temperature dried described in step one is 100 DEG C~110
DEG C, the time of the drying is that the water content for making solid matter is down to 0.5g/cm3~0.8g/cm3。
5. method according to claim 3, it is characterised in that Al described in step 22O3Mo powder in/Mo mixed-powders
Average grain diameter is 5 μm~10 μm, and the average grain diameter of Al2O3 powder is 350nm~450nm；Chromium powder described in step 3, Y2O3Powder, titanium
Powder, nickel powder, niobium powder, zirconium powder, carbon dust, the average grain diameter of manganese powder and boron powder are 15 μm~18 μm.
6. method according to claim 3, it is characterised in that the time of ball milling described in step 3 is 4h~6h, ball milling
Speed be 280r/min~320r/min, ball material mass ratio be (5~7): 1, guarantor of the ball milling in nitrogen or inert gas
Shield is lower to be carried out.
7. method according to claim 3, it is characterised in that the addition of process control agent described in step 3 is
Al2The 2%~3% of O3/Mo mixed-powder quality.
8. method according to claim 3, it is characterised in that stearic ethanol solution is by stearic acid described in step 3
Well mixed formed at 2: 1 by volume with absolute ethyl alcohol.
9. method according to claim 3, it is characterised in that the temperature dried described in step 3 is 50 DEG C~60 DEG C,
The time of the drying is 5h~7h.
10. method according to claim 3, it is characterised in that part mixed-powder described in step 4 accounts for mixed-powder
The 40%~50% of total amount.
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