CN104550914A - Iron-based self-lubrication powder metallurgy material for valve and preparation method of material - Google Patents
Iron-based self-lubrication powder metallurgy material for valve and preparation method of material Download PDFInfo
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- CN104550914A CN104550914A CN201410818952.4A CN201410818952A CN104550914A CN 104550914 A CN104550914 A CN 104550914A CN 201410818952 A CN201410818952 A CN 201410818952A CN 104550914 A CN104550914 A CN 104550914A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 title abstract description 14
- 238000004663 powder metallurgy Methods 0.000 title abstract description 5
- 238000005461 lubrication Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 14
- 238000009736 wetting Methods 0.000 claims abstract description 11
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052709 silver Inorganic materials 0.000 claims abstract description 9
- 239000004332 silver Substances 0.000 claims abstract description 9
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 7
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 14
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 12
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 12
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 12
- -1 polyoxyethylene Polymers 0.000 claims description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 claims description 6
- 229910052810 boron oxide Inorganic materials 0.000 claims description 6
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001488 sodium phosphate Substances 0.000 claims description 6
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 6
- 229910001935 vanadium oxide Inorganic materials 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- QHGNHLZPVBIIPX-UHFFFAOYSA-N tin(II) oxide Inorganic materials [Sn]=O QHGNHLZPVBIIPX-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 abstract 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 abstract 1
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to an iron-based self-lubrication powder metallurgy material for a valve, which comprises the following raw materials in parts by weight: 0.5-0.8 part of vanadium powder, 0.5-1 part of chromium powder, 0.05-0.08 part of niobium powder, 6-7 parts of sponge iron, 6-7 parts of molybdenum disulfide, 2-3 parts of kaolin, 0.5-0.8 parts of nanometer silver, 0.4-0.6 part of graphite, 12-16 parts of molybdenum powder, 0.3-0.4 part of silane coupling agent kh-500, a defined amount of 1% sodium carbonate solution, a defined amount of water, 2-3 parts of sodium hypophosphite, 0.4-0.6 part of polyethylene glycol, 20-25 parts of 2Mol/L copper sulphate solution, 2-3 parts of wetting auxiliaries and 70-74 parts of iron powder. According to the preparation technique for a valve material provided by the invention, the wettability and the caking property of nonmetal phase and metal phase are increased, the material tissue is uniform, the strength and the toughness are enhanced, the compressive strength exceeds 125 MPa, and the molybdenum disulfide and the nanometer silver are added so that the self-lubrication property, the abrasion resistance and the decay resistance of the valve are increased.
Description
Technical field
The present invention relates to powder metallurgical technology, particularly relate to a kind of iron-based valve self lubricity mmaterial and preparation method thereof.
Background technology
Valve is in fluid system, is used for controlling the device of the direction of fluid, pressure, flow, is the medium in pipe arrangement and equipment (liquid, gas, powder) is flowed or stops and controlling the device of its flow.
Valve material therefor is a lot, and wherein mmaterial manufacture craft is simple, makes precision high, saved cost, but powder metallurgy exists a lot of problem.Such as common iron-base powder metallurgy material is heat-resisting, erosion resistance is poor, and bearing is poor, and the mechanical properties such as intensity, hardness, shock-resistance are not high enough.
Metal has heat-shock resistance, the feature of good toughness, but metal is easily oxidized, and hot strength is not high.Stupalith has high rigidity, good heat resistance, the feature such as corrosion-resistant.By metal and Ceramic bond, can obtain that hardness is large, hot strength is high, high temperature creep is good, the material of good thermal shock, many excellent properties such as anti-oxidant, corrosion-resistant, wear-resistant, make valve be more suitable for the change of environment, longer service life.But due to nonmetallic phase and metallographic phase poor compatibility, easily make composition occur segregation, homogeneity of structure is poor, intensity is uneven, occur piebald, running-in ability is poor, wears no resistance, larger pressure can not be born, heat declines seriously, and cracking resistance can be poor, and thermal fatigue resistance can be poor, reduce use properties, shorten work-ing life.
The performance of iron-base powder metallurgy material can be improved by feed change, the performance of material can also be improved by the consistency improving nonmetallic phase and metallographic phase.
Summary of the invention
The object of the present invention is to provide a kind of iron-based valve self lubricity mmaterial and preparation method thereof, this valve material ultimate compression strength, more than 125MPa, has excellent self lubricity, resistance to abrasion and rotproofness.
Technical scheme of the present invention is as follows:
A kind of iron-based valve self lubricity mmaterial, is characterized in that being made up of the raw material of following weight part: vanadium powder 0.5-0.8, chromium powder 0.5-1, niobium powder 0.05-0.08, sponge iron 6-7, molybdenumdisulphide 6-7, kaolin 2-3, nanometer silver 0.5-0.8, graphite 0.4-0.6, molybdenum powder 12-16, silane coupling agent kh-550 0.3-0.4,1% sodium carbonate solution is appropriate, water appropriate, inferior sodium phosphate 2-3, polyoxyethylene glycol 0.4-0.6,2Mol/L copper-bath 20-25, wetting aid 2-3, iron powder 70-74;
Described wetting aid is made up of the raw material of following weight part: Ga1-2, P1-1.3, boron oxide 0.8-1.4, titanium 1.4-1.6, Mn 1.3-1.6, vanadium oxide 0.6-0.9, SnO0.3-0.5, Bi2O3 0.2-0.4, magnesium powder 0.6-0.9, NaF0.1-0.2, water 8-10, polyoxyethylene glycol 0.1-0.2; Preparation method is: be added to the water by polyoxyethylene glycol, add magnesium powder after stirring, be heated to 70-80 DEG C, stir 20-30 minute, ultrasonic disperse 3-4 minute, add P, vanadium oxide, boron oxide, titanium, SnO, Bi2O3, Mn again, under 7000-8000 rev/min, stir 10-15 minute, ultrasonic disperse 4-5 minute, spraying dry, mix with other remaining components, be ground to granularity and be less than 5 μm, to obtain final product.
The preparation method of described iron-based valve self lubricity mmaterial, is characterized in that comprising the following steps:
(1) by molybdenumdisulphide, kaolin mixing, add in 1% sodium carbonate solution of 3-4 times of weight part, be heated to 40-50 DEG C, stir 10-15 minute, filter, add the water washing of 3-4 times of weight part, repeated washing 2-3 time, filter, obtain filter cake;
(2) mixed with wetting aid by filter cake, grinding 30-40 minute, adds the water of 4-5 times of weight part, add silane coupling agent kh-550, stir 10-15 minute, be heated to 60-70 DEG C, then add the iron powder of vanadium powder, chromium powder, niobium powder, nanometer silver, 0.4-0.6 weight part, stir 30-40 minute, filter, spraying dry under an atmosphere of hydrogen, pulverize, cross 130 mesh sieves, obtain powder;
(3) powder that (2) step obtains is added in 2Mol/L copper-bath, add polyoxyethylene glycol, inferior sodium phosphate, be heated to 60-70 DEG C, stirring reaction 1-2 hour, filter, be washed with water to neutrality, pass into hot hydrogen and dry, pulverize, obtain powder;
(4) powder that (3) step obtains is mixed with other remaining components, ball milling, shaping, sintering, finished machined, to obtain final product.
Beneficial effect of the present invention
The manufacture craft of valve material of the present invention makes metallographic phase and nonmetallic phase intert mutually to combine, add wettability and the cohesiveness of nonmetallic phase and metallographic phase, can component segregation be prevented, make material structure even, add intensity and toughness, its ultimate compression strength is more than 125MPa; The wetting aid of the application of the invention, can increase the wettability of metal pair nonmetallic phase, increases fatigue strength and the toughness of valve; By adding molybdenumdisulphide, nanometer silver, add the self lubricity of valve, resistance to abrasion and rotproofness.
Embodiment
A kind of iron-based valve self lubricity mmaterial, is made up of the raw material of following weight part (kilogram): vanadium powder 0.6, chromium powder 0.7, niobium powder 0.07, sponge iron 6.5, molybdenumdisulphide 6.5, kaolin 2.5, nanometer silver 0.6, graphite 0.5, molybdenum powder 14, silane coupling agent kh-550 0.3,1% sodium carbonate solution are appropriate, water appropriate, inferior sodium phosphate 2.5, polyoxyethylene glycol 0.5,2Mol/L copper-bath 23, wetting aid 2.5, iron powder 72;
Described wetting aid is made up of the raw material of following weight part (kilogram): Ga1.5, P1.2, boron oxide 1, titanium 1.5, Mn 1.5, vanadium oxide 0.7, SnO0.4, Bi2O3 0.3, magnesium powder 0.7, NaF0.1, water 9, polyoxyethylene glycol 0.1; Preparation method is: be added to the water by polyoxyethylene glycol, add magnesium powder after stirring, be heated to 75 DEG C, stir 25 minutes, ultrasonic disperse 3.5 minutes, add P, vanadium oxide, boron oxide, titanium, SnO, Bi2O3, Mn again, stir 13 minutes under 7500 revs/min, ultrasonic disperse 4.5 minutes, spraying dry, mix with other remaining components, be ground to granularity and be less than 5 μm, to obtain final product.
The preparation method of described iron-based valve self lubricity mmaterial, comprises the following steps:
(1) by molybdenumdisulphide, kaolin mixing, add in 1% sodium carbonate solution of 3.5 times of weight parts, be heated to 45 DEG C, stir 13 minutes, filter, add the water washing of 3.5 times of weight parts, repeated washing 3 times, filter, obtain filter cake;
(2) filter cake is mixed with wetting aid, grind 35 minutes, add the water of 4.5 times of weight parts, add silane coupling agent kh-550, stir 13 minutes, be heated to 65 DEG C, then add the iron powder of vanadium powder, chromium powder, niobium powder, nanometer silver, 0.5 weight part, stir 35 minutes, filter, spraying dry under an atmosphere of hydrogen, pulverize, cross 130 mesh sieves, obtain powder;
(3) powder that (2) step obtains is added in 2Mol/L copper-bath, add polyoxyethylene glycol, inferior sodium phosphate, be heated to 65 DEG C, stirring reaction 1.5 hours, filter, be washed with water to neutrality, pass into hot hydrogen and dry, pulverize, obtain powder;
(4) powder that (3) step obtains is mixed with other remaining components, ball milling, shaping, sintering, finished machined, to obtain final product.
Experimental data:
The hardness HB of this embodiment valve material is 65 after tested, and density is 95.75%, voidage 9.15%, and fracture toughness property is 14.5MPam
1/2, ultimate compression strength is 156MPa, and bending strength is 505MPa.
Claims (2)
1. an iron-based valve self lubricity mmaterial, is characterized in that being made up of the raw material of following weight part: vanadium powder 0.5-0.8, chromium powder 0.5-1, niobium powder 0.05-0.08, sponge iron 6-7, molybdenumdisulphide 6-7, kaolin 2-3, nanometer silver 0.5-0.8, graphite 0.4-0.6, molybdenum powder 12-16, silane coupling agent kh-550 0.3-0.4,1% sodium carbonate solution are appropriate, water appropriate, inferior sodium phosphate 2-3, polyoxyethylene glycol 0.4-0.6,2Mol/L copper-bath 20-25, wetting aid 2-3, iron powder 70-74;
Described wetting aid is made up of the raw material of following weight part: Ga1-2, P1-1.3, boron oxide 0.8-1.4, titanium 1.4-1.6, Mn 1.3-1.6, vanadium oxide 0.6-0.9, SnO0.3-0.5, Bi2O3 0.2-0.4, magnesium powder 0.6-0.9, NaF0.1-0.2, water 8-10, polyoxyethylene glycol 0.1-0.2; Preparation method is: be added to the water by polyoxyethylene glycol, add magnesium powder after stirring, be heated to 70-80 DEG C, stir 20-30 minute, ultrasonic disperse 3-4 minute, add P, vanadium oxide, boron oxide, titanium, SnO, Bi2O3, Mn again, under 7000-8000 rev/min, stir 10-15 minute, ultrasonic disperse 4-5 minute, spraying dry, mix with other remaining components, be ground to granularity and be less than 5 μm, to obtain final product.
2. the iron-based valve preparation method of self lubricity mmaterial according to claim 1, is characterized in that comprising the following steps:
(1) by molybdenumdisulphide, kaolin mixing, add in 1% sodium carbonate solution of 3-4 times of weight part, be heated to 40-50 DEG C, stir 10-15 minute, filter, add the water washing of 3-4 times of weight part, repeated washing 2-3 time, filter, obtain filter cake;
(2) mixed with wetting aid by filter cake, grinding 30-40 minute, adds the water of 4-5 times of weight part, add silane coupling agent kh-550, stir 10-15 minute, be heated to 60-70 DEG C, then add the iron powder of vanadium powder, chromium powder, niobium powder, nanometer silver, 0.4-0.6 weight part, stir 30-40 minute, filter, spraying dry under an atmosphere of hydrogen, pulverize, cross 130 mesh sieves, obtain powder;
(3) powder that (2) step obtains is added in 2Mol/L copper-bath, add polyoxyethylene glycol, inferior sodium phosphate, be heated to 60-70 DEG C, stirring reaction 1-2 hour, filter, be washed with water to neutrality, pass into hot hydrogen and dry, pulverize, obtain powder;
(4) powder that (3) step obtains is mixed with other remaining components, ball milling, shaping, sintering, finished machined, to obtain final product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818952.4A CN104550914A (en) | 2014-12-25 | 2014-12-25 | Iron-based self-lubrication powder metallurgy material for valve and preparation method of material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410818952.4A CN104550914A (en) | 2014-12-25 | 2014-12-25 | Iron-based self-lubrication powder metallurgy material for valve and preparation method of material |
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| CN104550914A true CN104550914A (en) | 2015-04-29 |
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| CN201410818952.4A Pending CN104550914A (en) | 2014-12-25 | 2014-12-25 | Iron-based self-lubrication powder metallurgy material for valve and preparation method of material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405951A (en) * | 2018-03-27 | 2020-07-10 | 山阳特殊制钢株式会社 | Powder for mold |
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| CN111405951B (en) * | 2018-03-27 | 2024-04-05 | 山阳特殊制钢株式会社 | Powder for mold |
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Application publication date: 20150429 |