CN102806310A - Metal component casting process - Google Patents
Metal component casting process Download PDFInfo
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- CN102806310A CN102806310A CN2011101433124A CN201110143312A CN102806310A CN 102806310 A CN102806310 A CN 102806310A CN 2011101433124 A CN2011101433124 A CN 2011101433124A CN 201110143312 A CN201110143312 A CN 201110143312A CN 102806310 A CN102806310 A CN 102806310A
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Abstract
The invention discloses a metal component casting process, which comprises the following steps: (1) manufacturing a mold sample, (2) manufacturing a silica gel outer mold, (3) manufacturing a wax mold, (4) molding, and (5) carrying out casting, shaking-out and finishing, wherein the molding process adopts combination of a lost-wax precision casting process, a plaster mold casting process and a self-hardening resin sand mold casting process to carry out modification grafting on a casting mold system so as to successfully develop a metal component casting process. Results of process performance tests, technical analysis and production applications of the new process show that the new casting method has the following characteristics that a casting surface is fine, casting quality is good, a specification size is large, flatness is good, cost is low, a production cycle is short, molding is rapid, collapsibility is good, the material can be subjected to dry regeneration and recovery utilization, pollution is less, energy sources are saved, and the bottleneck of metal component casting is solved. In addition, the process of the present invention is applicable for molding of various alloy castings.
Description
Technical field
The invention belongs to the Casting Technology field, be specifically related to a kind of hardware casting technique.
Background technology
Casting technique is one of fundamental technology of modern mechanical process industry; Hardware casting is Metal Melting to be smelt meet necessarily required liquid metal, is poured into foundry goods die cavity back warp cooled and solidified, levels the casting process process that obtains reservation shape, size and performance after the processing.Casting technique commonly used in the prior art has resin bonded sand mould casting, dewax hot investment casting, plaster casting etc.The shortcoming of resin bonded sand mould casting be coarse, moulding is lively, can not do complex model; The moulding of dewax hot investment casting is fine and smooth, can accomplish complicated moulding, but its complex process, cost is high, the time is long, and can only make the smallclothes product, can not do big part, easy deformation; Many, benefit that plaster casting is adopted in the handicraft product casting can be done greatly, are not easy distortion, and its shortcoming is that cost is high, the cycle is long.
Summary of the invention
The objective of the invention is to the shortcoming and the problem that exist in the prior art, provide a kind of can cast complex-shaped, with low cost, shaping time fast, the big part of casting is not allowed yielding hardware casting technique yet.
Technical scheme of the present invention is: a kind of hardware casting technique, it comprises the steps:
(1) make apperance: with the hardware of typing or the new product model of making polish handle after, clean the surface with textile cloth again, again vaseline evenly is applied in the surface;
(2) system silica gel external mold: adopt the mode that multilayer is smeared or solid is poured into to make and reserve the silicon rubber mould at sprue gate with silicon rubber, its external application gypsum or resin are done and are set off mould.
(3) system wax-pattern: with melted paraffin wax, be poured in the silica gel mould through the sprue gate, the cooling back forms hollow paraffin model;
(4) moulding:
A. at hollow paraffin model inner chamber perfusion gypsum, the inner chamber gypsum carries out surperficial refine after solidifying, and processes solid paraffin model;
B. according to solid paraffin model shape, assembly welding sprue gate and runner system on solid paraffin model are adhered to solid paraffin model with resin quartz sand again;
C. will adhere to after the solid paraffin model drying of resin quartz sand the high temperature dewax outward and remove and solidify gypsum, obtain resin quartz sand external mold clearly;
D. take external mold apart, paste the rubber cement of regulation wall thickness, record core with resin quartz sand again;
(5) cast, knockout and finishing: being cast in through the liquid metal of melting in the quartzy sand mo(u)ld of resin, again through supercooling, shell, polish and process hardware.
Said resin quartz sand is formed by quartz sand, epoxy resin, curing agent mixed preparing, and the resin quartz sand weight portion proportioning that use summer is: 100 parts of quartz sands, 1.6～2.0 parts of epoxy resin, 0.6～0.9 part in curing agent; The resin quartz sand weight portion proportioning that use winter is: 100 parts of quartz sands, 1.8～2.2 parts of epoxy resin, 0.7～1.0 part in curing agent.
Described curing agent is an epoxy curing agent, as: methyl tetrahydro phthalic anhydride (C9H1003), methyl hexahydrophthalic anhydride (C9H1203), 113 epoxy hardeners, amine epoxy curing agent modified TDC-3361, amine epoxy curing agent modified TDC-8213,593 epoxy curing agents, curing agent TDC-1784, epoxy resin is high temperature resistant curing agent TDC-308, epoxy resin is high temperature resistant curing agent TDC-3081.
Described quartz sand fineness is 70～200 orders, water content≤0.25%, clay content≤1%.
Advantage of the present invention is: cost is low, the cycle is short, also be not easy to be out of shape, can to do big part, can do very complicated article.This technology invention emphasis is in (3), (4), (5).Process characteristic: casting technique is that the combination of advantages that merges every kind of foundry processing forms, and utilizes the surface aesthetics effect in the dewax precision casting process to duplicate meticulous characteristics completely; In conjunction with plaster casting technological forming characteristics rapidly, carry out multiple mould with gypsum mixture and fix, make the model more stable and stronger; Carry out self-hardening resin sand casting art shapes again on the wax pattern surface, thereby it is meticulous to have obtained cast(ing) surface, specification is big, and good straightness degree is with short production cycle, rapidly the foundry processing of moulding.Cost is minimum in all casting techniques, is not easy to be out of shape, can to do big part and very complicated foundry goods, and the cycle is short, pollution is minimum; Collapsibility is optimum; The material regeneration recovery utilization rate is big, has greatly solved the foundry processing bottleneck, for foundry processing has improved a new level.
The specific embodiment
Below in conjunction with practical implementation side's example the present invention is further specified.
Embodiment 1: a kind of hardware casting technique, it comprises the steps:
(1) make apperance: with the hardware of typing or the new product model of making polish handle after, clean the surface with textile cloth again, again vaseline evenly is applied in the surface;
(2) system silica gel external mold: adopt the mode that multilayer is smeared or solid is poured into to make and reserve the silicon rubber mould at sprue gate with silicon rubber, its external application gypsum is done and is set off mould.
(3) system wax-pattern: with melted paraffin wax, be poured in the silica gel mould through the sprue gate, the cooling back forms hollow paraffin model;
(4) moulding: a. is at hollow paraffin model inner chamber perfusion gypsum, and the inner chamber gypsum carries out surperficial refine after solidifying, and processes solid paraffin model; B. according to solid paraffin model shape, assembly welding sprue gate and runner system on solid paraffin model are adhered to solid paraffin model with resin quartz sand again; C. will adhere to after the solid paraffin model drying of resin quartz sand the high temperature dewax outward and remove and solidify gypsum, obtain resin quartz sand external mold clearly; D. take external mold apart, paste the rubber cement of regulation wall thickness, record core with resin quartz sand again;
(5) cast, knockout and finishing: being cast in through the liquid metal of melting in the quartzy sand mo(u)ld of resin, again through supercooling, shell, polish and process hardware;
Wherein, said resin quartz sand is that the resin quartz sand weight portion proportioning of using summer is: 100 parts of 180 purpose quartz sands, 1.8 parts of epoxy resin, 0.8 part in methyl tetrahydro phthalic anhydride (C9H1003) curing agent.
Embodiment 2:
A kind of hardware casting technique, it comprises embodiment 1 described processing step, wherein, the external application resin is done and is set off mould in the step (2); Said resin quartz sand is that the resin quartz sand weight portion proportioning of using summer is: 120 orders get 100 parts of quartz sands, and 1.6 parts of epoxy resin, amine epoxy curing agent modified TDC-3361 are 0.7 part.
Embodiment 3:
A kind of hardware casting technique, it comprises embodiment 1 described processing step, wherein, the external application gypsum is done and is set off mould in the step (2); Said resin quartz sand is that the resin quartz sand weight portion proportioning of using winter is: 100 parts of 100 purpose quartz sands, and 2.0 parts of epoxy resin, epoxy resin is high temperature resistant, and curing agent TDC-308 is 1 part.
Embodiment 4:
A kind of hardware casting technique, it comprises embodiment 1 described processing step, wherein, the external application resin is done and is set off mould in the step (2); Said resin quartz sand is that the resin quartz sand weight portion proportioning of using winter is: 100 parts of 80 purpose quartz sands, and 2.2 parts of epoxy resin, epoxy resin is high temperature resistant, and curing agent TDC-308 is 0.9 part.
Claims (3)
1. hardware casting technique, it comprises the steps:
(1) make apperance: with the hardware of typing or the new product model of making polish handle after, clean the surface with textile cloth again, again vaseline evenly is applied in the surface;
(2) system silica gel external mold: adopt the mode that multilayer is smeared or solid is poured into to make and reserve the silicon rubber mould at sprue gate with silicon rubber, its external application gypsum or resin are done and are set off mould.
(3) system wax-pattern: with melted paraffin wax, be poured in the silica gel mould through the sprue gate, the cooling back forms hollow paraffin model;
(4) moulding: a. is at hollow paraffin model inner chamber perfusion gypsum, and the inner chamber gypsum carries out surperficial refine after solidifying, and processes solid paraffin model; B. according to solid paraffin model shape, assembly welding sprue gate and runner system on solid paraffin model are adhered to solid paraffin model with resin quartz sand again; C. will adhere to after the solid paraffin model drying of resin quartz sand the high temperature dewax outward and remove and solidify gypsum, obtain resin quartz sand external mold clearly; D. take external mold apart, paste the rubber cement of regulation wall thickness, record core with resin quartz sand again;
(5) cast, knockout and finishing: being cast in through the liquid metal of melting in the quartzy sand mo(u)ld of resin, again through supercooling, shell, polish and process hardware.
2. hardware casting technique according to claim 1 is characterized in that: said resin quartz sand is formed by quartz sand, epoxy resin, curing agent mixed preparing; The resin quartz sand weight portion proportioning that use summer is: 100 parts of quartz sands, 1.6～2.0 parts of epoxy resin, 0.6～0.9 part in curing agent; The resin quartz sand weight portion proportioning that use winter is: 100 parts of quartz sands, 1.8～2.2 parts of epoxy resin, 0.7～1.0 part in curing agent.
3. hardware casting technique according to claim 2 is characterized in that: described quartz sand fineness is 70～200 orders, water content≤0.25%, clay content≤1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110143312.4A CN102806310B (en) | 2011-05-30 | 2011-05-30 | Metal component casting process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110143312.4A CN102806310B (en) | 2011-05-30 | 2011-05-30 | Metal component casting process |
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| CN102806310A true CN102806310A (en) | 2012-12-05 |
| CN102806310B CN102806310B (en) | 2015-07-08 |
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| CN201110143312.4A Active CN102806310B (en) | 2011-05-30 | 2011-05-30 | Metal component casting process |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658522A (en) * | 2013-12-24 | 2014-03-26 | 江苏丰泽生物工程设备制造有限公司 | Precision casting technology for small type fermentation tank |
| CN104070138A (en) * | 2014-07-02 | 2014-10-01 | 江苏大学 | Die for helical crystal selector and manufacture method of die |
| CN104525850A (en) * | 2014-12-16 | 2015-04-22 | 中国南方航空工业(集团)有限公司 | Cast pattern and preparation method of cast pattern |
| CN105562590A (en) * | 2015-12-23 | 2016-05-11 | 浙江斯耐尔涂装设备制造有限公司 | Novel precision casting process |
| CN106270410A (en) * | 2015-06-24 | 2017-01-04 | 天津建筑机械厂 | A kind of casting technique of wheel hub |
| CN107414029A (en) * | 2017-01-10 | 2017-12-01 | 马洪斌 | A kind of method for casting iron picture picture |
| CN108115093A (en) * | 2017-12-23 | 2018-06-05 | 安徽鑫宏机械有限公司 | A kind of gypsum shell full form casting process based on composite sand mould loam core |
| CN108297604A (en) * | 2018-01-31 | 2018-07-20 | 蔡栋丞 | A kind of copper woodcarving and preparation method thereof |
| CN112719218A (en) * | 2020-12-23 | 2021-04-30 | 崔誉 | Method for manufacturing antique copper artware |
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| JPH10235451A (en) * | 1997-02-26 | 1998-09-08 | Iwasaki:Kk | Mold for partial precision casting, and casting method |
| CN1951527A (en) * | 2005-10-19 | 2007-04-25 | 楠盛股份有限公司 | Method for manufacturing wax membrane of golf head |
| KR100764237B1 (en) * | 2007-06-08 | 2007-10-05 | 김진용 | Method for manufacturing metal pattern for precision casting of precious metal ornaments using natural materials |
| CN101574889A (en) * | 2009-05-19 | 2009-11-11 | 高智勇 | Mosaic craft preparation method |
| CN101579990A (en) * | 2009-05-19 | 2009-11-18 | 高智勇 | Method for fabricating mounted handicraft |
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2011
- 2011-05-30 CN CN201110143312.4A patent/CN102806310B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10235451A (en) * | 1997-02-26 | 1998-09-08 | Iwasaki:Kk | Mold for partial precision casting, and casting method |
| CN1951527A (en) * | 2005-10-19 | 2007-04-25 | 楠盛股份有限公司 | Method for manufacturing wax membrane of golf head |
| KR100764237B1 (en) * | 2007-06-08 | 2007-10-05 | 김진용 | Method for manufacturing metal pattern for precision casting of precious metal ornaments using natural materials |
| CN101574889A (en) * | 2009-05-19 | 2009-11-11 | 高智勇 | Mosaic craft preparation method |
| CN101579990A (en) * | 2009-05-19 | 2009-11-18 | 高智勇 | Method for fabricating mounted handicraft |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658522B (en) * | 2013-12-24 | 2015-08-12 | 江苏丰泽生物工程设备制造有限公司 | Small-sized fermentation tank precision casting technology |
| CN103658522A (en) * | 2013-12-24 | 2014-03-26 | 江苏丰泽生物工程设备制造有限公司 | Precision casting technology for small type fermentation tank |
| CN104070138B (en) * | 2014-07-02 | 2016-08-24 | 江苏大学 | A kind of mould for spiral crystal selector and manufacture method thereof |
| CN104070138A (en) * | 2014-07-02 | 2014-10-01 | 江苏大学 | Die for helical crystal selector and manufacture method of die |
| CN104525850A (en) * | 2014-12-16 | 2015-04-22 | 中国南方航空工业(集团)有限公司 | Cast pattern and preparation method of cast pattern |
| CN106270410A (en) * | 2015-06-24 | 2017-01-04 | 天津建筑机械厂 | A kind of casting technique of wheel hub |
| CN106270410B (en) * | 2015-06-24 | 2018-12-18 | 天津移山工程机械有限公司 | A kind of casting technique of wheel hub |
| CN105562590A (en) * | 2015-12-23 | 2016-05-11 | 浙江斯耐尔涂装设备制造有限公司 | Novel precision casting process |
| CN107414029A (en) * | 2017-01-10 | 2017-12-01 | 马洪斌 | A kind of method for casting iron picture picture |
| CN108115093A (en) * | 2017-12-23 | 2018-06-05 | 安徽鑫宏机械有限公司 | A kind of gypsum shell full form casting process based on composite sand mould loam core |
| CN108115093B (en) * | 2017-12-23 | 2019-09-06 | 安徽鑫宏机械有限公司 | A kind of plaster mold shell full form casting process based on composite sand mould loam core |
| CN108297604A (en) * | 2018-01-31 | 2018-07-20 | 蔡栋丞 | A kind of copper woodcarving and preparation method thereof |
| CN112719218A (en) * | 2020-12-23 | 2021-04-30 | 崔誉 | Method for manufacturing antique copper artware |
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|---|---|
| CN102806310B (en) | 2015-07-08 |
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