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CN106513634A - Wax mold structure for high-temperature resisting alloy vacuum suction casting - Google Patents

Wax mold structure for high-temperature resisting alloy vacuum suction casting Download PDF

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Publication number
CN106513634A
CN106513634A CN201611167872.2A CN201611167872A CN106513634A CN 106513634 A CN106513634 A CN 106513634A CN 201611167872 A CN201611167872 A CN 201611167872A CN 106513634 A CN106513634 A CN 106513634A
Authority
CN
China
Prior art keywords
wax
base
column connection
connection strap
pattern structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611167872.2A
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Chinese (zh)
Inventor
严元众
陈良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI SINOTEC TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI SINOTEC TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI SINOTEC TECHNOLOGY Co Ltd filed Critical SHANGHAI SINOTEC TECHNOLOGY Co Ltd
Priority to CN201611167872.2A priority Critical patent/CN106513634A/en
Publication of CN106513634A publication Critical patent/CN106513634A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00Pressure casting; Vacuum casting
    • B22D18/06Vacuum casting, i.e. making use of vacuum to fill the mould

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention relates to a wax mold structure for high-temperature resisting alloy vacuum suction casting. The wax mold structure is characterized by consisting of a base, a top platform and a communicating structure for connecting the base with the top platform; the base is a conical structure; the communicating structure consists of columnar connecting bars distributed between the base and the top platform; and gaps exist between the adjacent columnar connecting bars. The wax mold structure consists of the top platform at the upper part, the base at the lower part and the communicating structure for connecting the upper and lower parts at the middle part; and as all the parts are delicate in structural setting, proper in layout setting and reasonable in structure, the cooling speed can be accelerated, the sequential solidification time is shortened, the improvement of the casting production efficiency is guaranteed, the gas emission is facilitated, and the excellent mold filling environment is created.

Description

A kind of wax-pattern structure for high-temperature alloy suction pouring
Technical field
The present invention relates to the technical field of hot investment casting, specifically a kind of wax for high-temperature alloy suction pouring Mode structure.
Background technology
Suction pouring belongs to Special Processes of Metal Castings technique, is a kind of advanced foundry engieering.Because its liquid metals utilization rate is high, foundry goods Precision height, quality height, energy saving, low cost and other advantages, are widely used in commercial machine, mechanical part, vapour in developed country In many important precision casting manufactures such as turbine blade, guided missile wing.The technology is taken for 1975 by Hitchiner companies of the U.S. Patent is obtained, and realizes core technology block.At present, suction pouring is mainly used in the essence of the low-temperature alloys such as aluminium alloy in China Close casting, is rarely applied to the hot investment casting of high-temperature alloy.
Formwork for suction pouring had both required that higher intensity also required that certain gas permeability, so just can guarantee that and fills type Stage smoothly draws alloy solution, and formwork full of Stability Analysis of Structures after alloy solution.But the intensity of totally-enclosed formwork structure and Gas permeability is a pair conflicting performances, and this results in most of formwork structure in the market and is difficult to be adapted to high temperature resistant conjunction Golden suction pouring.If produced by force easily there are various perils.
The content of the invention
It is an object of the invention to provide a kind of improved wax-pattern structure for high-temperature alloy suction pouring, the wax-pattern Structure setting is novel, goes for the hot investment casting of high-temperature alloy, is effect with protrusion, furthermore, it is understood that due to knot Structure is simple, effectively, by connectivity structure effectively connection base and top platform so that wax-pattern structure keeps higher intensity and thoroughly Gas, construction well fill type environment so that present invention can apply to the hot investment casting of the small-sized foundry goods of high temperature alloy.
To achieve these goals, the technical scheme is that:A kind of wax-pattern for high-temperature alloy suction pouring Structure, it is characterised in that:Described wax-pattern structure is by base, top platform and connecting for connect base and top platform Structure is constituted;The tapered structure of described base, described connectivity structure is by the column being distributed between base and top platform Connection strap is constituted, and there is gap between adjacent column connection strap.
Preferably, the surrounding of wax-pattern structure is distributed with formwork foundry goods, and each formwork foundry goods is by a running channel and molten steel stream Passage is connected;Described running channel includes elbow running channel.
Preferably, described base includes bottom supporting face and the pyramidal structure being located at below bottom supporting face, taper knot Structure domain is connected by arc surface transition between bottom supporting face;Described column connection strap is square column, cylinder or triangular prism;Top Portion's platform is in the form of annular discs.
During use, the wax-pattern structure of the present invention includes three parts, is the top platform on top respectively, the base of bottom and Middle part is constituted to the connectivity structure for connecting upper and lower part, as Each part arranges exquisite, while layout sets between each several part Put appropriate, fine structure rationally, rate of temperature fall not only can be improved and then the consecutive solidification time is reduced, it is ensured that castings production is imitated The raising of rate, also helps the discharge of gas, and type environment is well filled in construction.Top platform structure is more beneficial for component pair outside upper end The compression of formwork, makes formwork and stalk coordinate more closely, prevents alloy solution from leaking.This wax-pattern structure is assembled into one Afterwards, light casting group tree, shell processed, dewaxing, roasting formation suction pouring formwork mechanism can be carried out.Pass through by this formwork structure The small-sized foundry goods of high-temperature alloy that process for suction casting is produced can further lift suction pouring castings production efficiency.
Description of the drawings
Fig. 1 is the structural representation that the wax-pattern structure of the present invention removes formwork foundry goods.
Fig. 2 is the schematic diagram of the wax-pattern structure of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Label in each accompanying drawing is expressed as follows:1 base, 2 connectivity structures, 3 top platforms.
A kind of wax-pattern structure for high-temperature alloy suction pouring of the present invention, its difference with the prior art exist In:Connectivity structure of the described wax-pattern structure by base, top platform and for connect base and top platform is constituted;It is described The tapered structure of base, described connectivity structure is made up of the column connection strap being distributed between base and top platform, phase There is gap between adjacent column connection strap.
Optionally, the surrounding of wax-pattern structure is distributed with formwork foundry goods, and each formwork foundry goods is by a running channel and molten steel stream Passage is connected;Described running channel includes elbow running channel.
Optionally, described base includes bottom supporting face and the pyramidal structure being located at below bottom supporting face, taper knot Structure domain is connected by arc surface transition between bottom supporting face;Described column connection strap is square column, cylinder or triangular prism;Top Portion's platform is in the form of annular discs.What middle column connection strap can form connection foundry goods fills type running channel, while can be by a group tree group More foundry goods, elongated structure itself improve rate of temperature fall and then reduce the consecutive solidification time, it is ensured that castings production efficiency Raising.Top round pie platform structure is connected with lower end structure, forms intermediate throughholes, be conducive to gas after shell processed Type environment is well filled in discharge, construction.Platform structure is more beneficial for compression of the component to formwork outside upper end, matches somebody with somebody formwork and stalk Close more closely, prevent alloy solution from leaking.After this wax-pattern structure is assembled into one, light casting group tree, shell processed can be carried out, taken off Wax, roasting form suction pouring formwork mechanism.By the high temperature resistant that this formwork structure is produced by process for suction casting The small-sized foundry goods of alloy can further lift suction pouring castings production efficiency.
In one embodiment, base is provided with least 3 column connection straps, and column connection strap is uniformly arranged on base On.Here the connection strap of column is square, the gap between described adjacent prismatic column connection strap and column connection strap diameter Ratio be 2:1;The two ends of described square column connection strap are equipped with trumpet-shaped pedestal, trumpet-shaped pedestal respectively with top surface Platform is connected with base.
Further, the middle part of square column connection strap can be provided with the curved surface to contract, i.e., whole square column The mid diameter of connection strap is less than two ends diameter, and mid diameter is 1.5 with two ends diameter ratio:2, such mode can be improved Rate of temperature fall and then reduction consecutive solidification time, it is ensured that the raising of castings production efficiency.
In one embodiment, base is provided with 3-12 root column connection straps, and column connection strap is square column connection strap, Column connection strap is started setting up from base center, and along center column connection strap in dispersion shape layer from inside to outside successively Layer is arranged, and the gap being provided between adjacent column connection strap is to fill type running channel.
Gap between described adjacent prismatic column connection strap is 1.5 3 with column connection strap diameter ratio:1;It is described The two ends of square column connection strap be equipped with trumpet-shaped pedestal, trumpet-shaped pedestal respectively with top surface platform and base phase Even.In the designed wax-pattern structure for high-temperature alloy process for suction casting, described middle rectangular bars connectivity structure Connection foundry goods can be formed fills type running channel, because rectangular bars size is through reasonably optimizing, can be more by group tree group Foundry goods, it is also possible to reduce the consecutive solidification time.Ensure that the raising of process for suction casting castings production efficiency.
In one embodiment, base is provided with 6-9 bar square pillar connection straps, described square pillar pars intermedia Diameter less than both ends diameter.It is in the designed wax-pattern structure for high-temperature alloy process for suction casting, described Top round pie platform structure is connected with lower end structure, after shell processed forms intermediate throughholes, is conducive to the discharge of gas.It is flat Platform structure is more beneficial for compression of the component to formwork outside upper end, formwork and stalk is coordinated more closely, prevents alloy solution from letting out Leakage.
In one embodiment, the surrounding of wax-pattern structure is distributed with formwork foundry goods, and each formwork foundry goods passes through a running channel It is connected with molten steel circulation road;Described running channel includes elbow running channel.One end of described elbow running channel is vertical with molten steel circulation road Connection, the other end are connected with the casting gate of formwork foundry goods, and intermediate connector need to be avoided at the setting of elbow running channel.Elbow running channel It is connected with formwork foundry goods by hollow via-hole, hollow via-hole outwardly convex is simultaneously connected with the bottom of elbow running channel.After making Formwork can carry out roasting using 500-1200 DEG C of arbitrary temp, carry out high-temperature alloy in putting into suction pouring equipment after roasting The hot investment casting of small-sized foundry goods.The small-sized foundry goods of high-temperature alloy described here includes that high temperature resistant stainless steel, steel alloy, titanium are closed Gold, titanium-aluminium alloy etc..
In a specific embodiment, wax-pattern is divided into three parts:Bottom pyramidal structure, middle rectangular bars connection knot Structure and top round pie platform structure.The taper surface that bottom pyramidal structure will be formed and stalk coordinates, connection stalk guiding Alloy solution fills type upwards.Middle rectangular bars connectivity structure can form connection foundry goods and fill type running channel, while can pass through The more foundry goods of group tree group, elongated structure itself improve rate of temperature fall and then reduce the consecutive solidification time, it is ensured that foundry goods is given birth to Produce the raising of efficiency.Top round pie platform structure is connected with lower end structure, forms intermediate throughholes, be conducive to after shell processed Type environment is well filled in the discharge of gas, construction.Platform structure is more beneficial for compression of the component to formwork outside upper end, makes formwork and liter Liquid pipe coordinates more closely, prevents alloy solution from leaking.After this wax-pattern structure is assembled into one, can carry out light casting group tree, Shell processed, dewaxing, roasting form suction pouring formwork mechanism.Produced by process for suction casting by this formwork structure The small-sized foundry goods of high-temperature alloy can further lift suction pouring castings production efficiency.
In the designed wax-pattern structure for high-temperature alloy process for suction casting, described bottom pyramidal structure is by shape Into the taper surface coordinated with stalk, connection stalk guiding alloy solution fills type upwards.
In the designed wax-pattern structure for high-temperature alloy process for suction casting, described middle rectangular bars connection Structure can form connection foundry goods and fill type running channel, because rectangular bars size is through reasonably optimizing, can be by group tree group more Many foundry goods, it is also possible to reduce the consecutive solidification time.Ensure that the raising of process for suction casting castings production efficiency.
In the designed wax-pattern structure for high-temperature alloy process for suction casting, described top round pie platform knot Structure is connected with lower end structure, after shell processed forms intermediate throughholes, is conducive to the discharge of gas.Platform structure is more beneficial for Compression of the outer component in end to formwork, makes formwork and stalk coordinate more closely, prevents alloy solution from leaking.
In the designed wax-pattern structure for high-temperature alloy process for suction casting, described wax-pattern structure can be applicable to The wax-pattern structure for assembling is carried out a group tree, shell processed, dewaxing, forms vacuum after roasting by the process for suction casting of high-temperature alloy Casting process formwork mechanism is inhaled, wherein shell processed adopts 6 layers of process for making shell, includes zircon sand, mullite, magnesia, silica sand with sand material In one or more.
In the designed wax-pattern structure for high-temperature alloy process for suction casting, described wax-pattern structure can be applicable to The process for suction casting of high-temperature alloy, formwork can carry out roasting using 500-1200 DEG C of arbitrary temp, put into true after roasting The hot investment casting of the small-sized foundry goods of high-temperature alloy is carried out in suction casting machine.
In the designed wax-pattern structure for high-temperature alloy process for suction casting, described wax-pattern structure can be applicable to The process for suction casting of high-temperature alloy, high-temperature alloy include high temperature resistant stainless steel, steel alloy, titanium alloy, titanium-aluminium alloy etc..
Above content is with reference to specific preferred embodiment further description made for the present invention, it is impossible to assert The present invention is embodied as being confined to above-mentioned these explanations.For general technical staff of the technical field of the invention, Without departing from the inventive concept of the premise, some simple deduction or replace can also be made, the present invention should be all considered as belonging to Protection domain.

Claims (9)

1. a kind of wax-pattern structure for high-temperature alloy suction pouring, it is characterised in that:Described wax-pattern structure by base, Top platform and the connectivity structure for connect base and top platform are constituted;
The tapered structure of described base, described connectivity structure is by the column connection strap being distributed between base and top platform Constitute, between adjacent column connection strap, there is gap.
2. the wax-pattern structure for high-temperature alloy suction pouring according to claim 1, it is characterised in that:Wax-pattern structure Surrounding formwork foundry goods is distributed with, each formwork foundry goods is connected with molten steel circulation road by a running channel;Described running channel includes Elbow running channel.
3. the wax-pattern structure for high-temperature alloy suction pouring according to claim 1, it is characterised in that:Described bottom Seat includes bottom supporting face and the pyramidal structure being located at below bottom supporting face, by circle between the bottom supporting face of pyramidal structure domain Cambered surface transition connects;
Described column connection strap is square column, cylinder or triangular prism;Top platform is in the form of annular discs.
4. the wax-pattern structure for high-temperature alloy suction pouring according to claim 1, it is characterised in that:Set on base There are at least 3 column connection straps, column connection strap is uniformly arranged on base.
5. the wax-pattern structure for high-temperature alloy suction pouring according to claim 1, it is characterised in that:Set on base There are 3-12 root column connection straps, column connection strap is square column connection strap, column connection strap is started setting up from base center, And the column connection strap along center is arranged successively from inside to outside layer by layer in dispersion shape, is provided between adjacent column connection strap Gap to fill type running channel.
6. the wax-pattern structure for high-temperature alloy suction pouring according to claim 5, it is characterised in that:Described phase Gap between adjacent square column connection strap is 1.5 3 with column connection strap diameter ratio:1;
The two ends of described square column connection strap are equipped with trumpet-shaped pedestal, trumpet-shaped pedestal respectively with top surface platform and Base is connected.
7. the wax-pattern structure for high-temperature alloy suction pouring according to claim 1, it is characterised in that:Set on base The diameter for having 6-9 bar square pillar connection straps, described square pillar pars intermedia is less than the diameter at both ends.
8. the wax-pattern structure for high-temperature alloy suction pouring according to claim 2, it is characterised in that:Described is curved One end and the molten steel circulation road vertical connection of head running channel, the other end be connected with the casting gate of formwork foundry goods, and elbow running channel sets Intermediate connector need to be avoided in the place of putting.
9. the wax-pattern structure for high-temperature alloy suction pouring according to claim 2, it is characterised in that:Elbow running channel It is connected with formwork foundry goods by hollow via-hole, hollow via-hole outwardly convex is simultaneously connected with the bottom of elbow running channel.
CN201611167872.2A 2016-12-16 2016-12-16 Wax mold structure for high-temperature resisting alloy vacuum suction casting Pending CN106513634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611167872.2A CN106513634A (en) 2016-12-16 2016-12-16 Wax mold structure for high-temperature resisting alloy vacuum suction casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611167872.2A CN106513634A (en) 2016-12-16 2016-12-16 Wax mold structure for high-temperature resisting alloy vacuum suction casting

Publications (1)

Publication Number Publication Date
CN106513634A true CN106513634A (en) 2017-03-22

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Country Status (1)

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1608697A (en) * 2003-10-21 2005-04-27 复盛股份有限公司 golf club head
US6929050B2 (en) * 2003-06-20 2005-08-16 Mpi Incorporated Wax runners for casting
CN1693005A (en) * 2004-05-06 2005-11-09 联合工艺公司 Investment casting
CN101011724A (en) * 2006-01-30 2007-08-08 联合工艺公司 Investment casting mold design and motor for investment casting using the same
CN101559483A (en) * 2008-04-15 2009-10-21 叶瑞文 Vacuum updraught casting technology and equipment thereof
CN101850401A (en) * 2010-05-31 2010-10-06 上虞新达精密铸造有限公司 Fired mold and precision casting process utilizing same
CN102658355A (en) * 2012-05-06 2012-09-12 苏氏工业科学技术(北京)有限公司 Squirrel-cage shell load bearing structure integrated with runner film tire
CN203418085U (en) * 2013-07-19 2014-02-05 江苏永瀚特种合金技术有限公司 Combined die structure for casting single crystal blades
CN103658542A (en) * 2013-12-19 2014-03-26 贵州黎阳航空动力有限公司 Precision casting gating system
CN103861999A (en) * 2014-03-26 2014-06-18 东方电气集团东方汽轮机有限公司 Method for improving bottom deformation of multi-cavity ceramic die shell in directional solidification process
CN204234669U (en) * 2014-11-18 2015-04-01 连云港源钰金属制品有限公司 Be convenient to the hot investment casting wax tree structure departed from
CN104874739A (en) * 2015-06-19 2015-09-02 东方电气集团东方汽轮机有限公司 Precise CRDM part casting forming method
CN206382543U (en) * 2016-12-16 2017-08-08 上海华培动力科技股份有限公司 A kind of wax-pattern structure for high-temperature alloy suction pouring

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6929050B2 (en) * 2003-06-20 2005-08-16 Mpi Incorporated Wax runners for casting
CN1608697A (en) * 2003-10-21 2005-04-27 复盛股份有限公司 golf club head
CN1693005A (en) * 2004-05-06 2005-11-09 联合工艺公司 Investment casting
CN101011724A (en) * 2006-01-30 2007-08-08 联合工艺公司 Investment casting mold design and motor for investment casting using the same
CN101559483A (en) * 2008-04-15 2009-10-21 叶瑞文 Vacuum updraught casting technology and equipment thereof
CN101850401A (en) * 2010-05-31 2010-10-06 上虞新达精密铸造有限公司 Fired mold and precision casting process utilizing same
CN102658355A (en) * 2012-05-06 2012-09-12 苏氏工业科学技术(北京)有限公司 Squirrel-cage shell load bearing structure integrated with runner film tire
CN203418085U (en) * 2013-07-19 2014-02-05 江苏永瀚特种合金技术有限公司 Combined die structure for casting single crystal blades
CN103658542A (en) * 2013-12-19 2014-03-26 贵州黎阳航空动力有限公司 Precision casting gating system
CN103861999A (en) * 2014-03-26 2014-06-18 东方电气集团东方汽轮机有限公司 Method for improving bottom deformation of multi-cavity ceramic die shell in directional solidification process
CN204234669U (en) * 2014-11-18 2015-04-01 连云港源钰金属制品有限公司 Be convenient to the hot investment casting wax tree structure departed from
CN104874739A (en) * 2015-06-19 2015-09-02 东方电气集团东方汽轮机有限公司 Precise CRDM part casting forming method
CN206382543U (en) * 2016-12-16 2017-08-08 上海华培动力科技股份有限公司 A kind of wax-pattern structure for high-temperature alloy suction pouring

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