CN103934416B - A kind of waterglass shell produces the method for precision stainless steel foundry goods - Google Patents
A kind of waterglass shell produces the method for precision stainless steel foundry goods Download PDFInfo
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- CN103934416B CN103934416B CN201410145298.5A CN201410145298A CN103934416B CN 103934416 B CN103934416 B CN 103934416B CN 201410145298 A CN201410145298 A CN 201410145298A CN 103934416 B CN103934416 B CN 103934416B
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- waterglass
- powder
- natural drying
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- 235000019353 potassium silicate Nutrition 0.000 title claims abstract description 34
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 11
- 239000010935 stainless steel Substances 0.000 title claims abstract description 11
- 238000009415 formwork Methods 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims description 63
- 239000000843 powder Substances 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 25
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 235000019270 ammonium chloride Nutrition 0.000 claims description 12
- 238000013019 agitation Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000013530 defoamer Substances 0.000 claims description 9
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 8
- 229910052726 zirconium Inorganic materials 0.000 claims description 8
- 208000034189 Sclerosis Diseases 0.000 claims description 6
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 239000000080 wetting agent Substances 0.000 claims description 6
- 229910052845 zircon Inorganic materials 0.000 claims description 5
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 230000003203 everyday effect Effects 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000001993 wax Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 239000011241 protective layer Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a kind of method that waterglass shell produces precision stainless steel foundry goods, comprise fusible pattern, shell processed, formwork dewaxing, formwork roasting, cast 4 large steps.The present invention's waterglass shell substitutes silicon sol casing to produce precision stainless steel foundry goods, not only reduces production cost but also shorten the production cycle, achieves good economic benefit.
Description
Technical field
The present invention relates to a kind of method that waterglass shell produces precision stainless steel foundry goods.
Background technology
Adopt silicon sol casing method to produce the Conventional processing methods of precision stainless steel foundry goods Shi Ge hot investment casting factory, not only shell processed main raw and auxiliary material cost is higher, and the production cycle is long.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method that waterglass shell produces precision stainless steel foundry goods.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of waterglass shell produces the method for precision stainless steel foundry goods, comprises the following steps:
One, fusible pattern
(1) the low temperature mould material of paraffin wax white and stearic acid each 50% is adopted; Injection pressure 0.2 ~ 0.5Mpa; Slack wax temperature 45 C ~ 48 DEG C; Insulation coolant-temperature gage 48 ~ 52 DEG C;
Two, shell processed
(2) surface layer steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.26 ~ 1.28;
Sand powder: 100 ~ 120 orders or 80 ~ 100 zircon sand; 325 order zirconium English powder;
Wetting agent: JFC, addition is 0.1 ~ 0.3% of waterglass weight;
Defoamer: silicone defoaming agent, addition is 0.05 ~ 0.1% of waterglass weight;
Sand: 100 ~ 120 orders or 80 ~ 100 zircon sand; Powder: 325 order zirconium English powder;
Curing agent: 18 ~ 24% ammonium chlorides;
Slurry adopts L-type mixer to stir.By the powder liquor ratio of 2.0 ~ 2.5:1 time with slurry, first add waterglass, after slowly add zirconium English powder, finally add wetting agent and defoamer stirs as uniform slurry, adopt capacity 100ml, leak Φ 6 normal viscosity test cup testing size viscosity is 35 ~ 45s; Newly join slurry agitation 24 as a child to use afterwards, remain old slurry and supplement new slurry and stir and can use for 8 hours, under stirring, be stained with slurry shell processed.If slurry several days need not, can powered-down, stir every day and within one hour, keep slurry not precipitate.After module is stained with slurry stucco, ammonium chloride pond sclerosis 15 ~ 20 minutes is put in natural drying after one hour, takes out natural drying 30 ~ 60 minutes, controls surface layer to the shell operation processed that can enter transition zone (protective layer) during not wet in vain state;
(3) transition zone (i.e. protective layer) steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.28 ~ 1.30;
Sand: 40 ~ 70 order purity quartzites; Powder: 270 ~ 300 orders refine silica flour;
Powder liquor ratio: 1.2 ~ 1.3:1;
Viscosity: 30 ~ 40s;
Defoamer: silicone defoaming agent, addition is 0.05 ~ 0.1% of waterglass weight;
Curing agent: the ammonium chloride of 18 ~ 24%;
Slurry adopts normal agitation machine to stir; New slurry stirs after 4 hours and uses, and remains old slurry and supplements after new slurry stirs one hour and can use, and module enters to harden after being stained with slurry stucco pond sclerosis 15 ~ 20 minutes, takes out natural drying 20 ~ 40 minutes, can enter back-up coat shell operation;
(4) back-up coat steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.31 ~ 1.33;
Sand: do not reclaim sand, ground floor 20 ~ 40 order, the second layer 10 ~ 30 order, third layer 0 ~ 20 order;
Powder: 170 ~ 200 object high-alumina refractory powder;
Powder liquor ratio: 1.05 ~ 1.5:1;
Curing agent: crystal aluminum chloride, density (d) 1.16 ~ 1.20;
Slurry adopts normal agitation machine to stir, and namely stirs i.e. use, time with slurry, add powder, stir after first adding waterglass.One deck slurry viscosity 20 ~ 30s, natural drying in 20 ~ 30 minutes 10 ~ 20 minutes of hardening; Two layers of slurry viscosity 30 ~ 40s, harden 30 ~ 40 minutes, natural drying 10 ~ 20 minutes; Slurry viscosity 45 ~ 55s after three layers and three layers, hardens 40 ~ 50 minutes, natural drying 10 ~ 20 minutes; Slurry seal harden within 20 minutes, take out natural drying >=8 hour after can enter dewaxing operation;
Three, formwork dewaxing
(5) dewax coolant-temperature gage 95 ~ 98 DEG C, adds ammonium chloride 2 ~ 3%;
(6) dewax the time: 20 ~ 40 minutes;
(7) after dewaxing >=within 8 hours, formwork calcining process can be entered;
Four, formwork roasting cast
(6) sintering temperature: 850 ~ 950 DEG C, is incubated 1 ~ 2 hour;
(7) formwork is 500 ~ 700 DEG C of cast.
The invention has the beneficial effects as follows:
Substitute silicon sol casing with waterglass shell and produce precision stainless steel foundry goods, not only reduce production cost but also shorten the production cycle, achieve good economic benefit.
Detailed description of the invention
Waterglass shell produces a method for precision stainless steel foundry goods, comprises the following steps:
One, fusible pattern
(1) the low temperature mould material of paraffin wax white and stearic acid each 50% is adopted; Injection pressure 0.2 ~ 0.5Mpa; Slack wax temperature 45 C ~ 48 DEG C; Insulation coolant-temperature gage 48 ~ 52 DEG C;
Two, shell processed
(2) surface layer steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.26 ~ 1.28;
Sand powder: 100 ~ 120 orders or 80 ~ 100 zircon sand; 325 order zirconium English powder;
Wetting agent: JFC, addition is 0.1 ~ 0.3% of waterglass weight;
Defoamer: silicone defoaming agent, addition is 0.05 ~ 0.1% of waterglass weight;
Sand: 100 ~ 120 orders or 80 ~ 100 zircon sand; Powder: 325 order zirconium English powder;
Curing agent: 18 ~ 24% ammonium chlorides;
Slurry adopts L-type mixer to stir.By the powder liquor ratio of 2.0 ~ 2.5:1 time with slurry, first add waterglass, after slowly add zirconium English powder, finally add wetting agent and defoamer stirs as uniform slurry, adopt capacity 100ml, leak Φ 6 normal viscosity test cup testing size viscosity is 35 ~ 45s; Newly join slurry agitation 24 as a child to use afterwards, remain old slurry and supplement new slurry and stir and can use for 8 hours, under stirring, be stained with slurry shell processed.If slurry several days need not, can powered-down, stir every day and within one hour, keep slurry not precipitate.After module is stained with slurry stucco, ammonium chloride pond sclerosis 15 ~ 20 minutes is put in natural drying after one hour, takes out natural drying 30 ~ 60 minutes, controls surface layer can enter transition zone (i.e. protective layer) shell operation processed to " not wetting in vain ";
(3) transition zone (i.e. protective layer) steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.28 ~ 1.30;
Sand: 40 ~ 70 order purity quartzites; Powder: 270 ~ 300 orders refine silica flour;
Powder liquor ratio: 1.2 ~ 1.3:1;
Viscosity: 30 ~ 40s;
Defoamer: silicone defoaming agent, addition is 0.05 ~ 0.1% of waterglass weight;
Curing agent: the ammonium chloride of 18 ~ 24%;
Slurry adopts normal agitation machine to stir; New slurry stirs after 4 hours and uses, and remains old slurry and supplements after new slurry stirs one hour and can use, and module enters to harden after being stained with slurry stucco pond sclerosis 15 ~ 20 minutes, takes out natural drying 20 ~ 40 minutes, can enter back-up coat shell operation;
(4) back-up coat steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.31 ~ 1.33;
Sand: do not reclaim sand, ground floor 20 ~ 40 order, the second layer 10 ~ 30 order, third layer 0 ~ 20 order;
Powder: 170 ~ 200 object high-alumina refractory powder;
Powder liquor ratio: 1.05 ~ 1.5:1;
Curing agent: crystal aluminum chloride, density (d) 1.16 ~ 1.20;
Slurry adopts normal agitation machine to stir, and namely stirs i.e. use, time with slurry, add powder, stir after first adding waterglass.One deck slurry viscosity 20 ~ 30s, natural drying in 20 ~ 30 minutes 10 ~ 20 minutes of hardening; Two layers of slurry viscosity 30 ~ 40s, harden 30 ~ 40 minutes, natural drying 10 ~ 20 minutes; Slurry viscosity 45 ~ 55s after three layers and three layers, hardens 40 ~ 50 minutes, natural drying 10 ~ 20 minutes; Slurry seal harden within 20 minutes, take out natural drying >=8 hour after can enter dewaxing operation;
Three, formwork dewaxing
(5) dewax coolant-temperature gage 95 ~ 98 DEG C, adds ammonium chloride 2 ~ 3%;
(6) dewax the time: 20 ~ 40 minutes;
(7) after dewaxing >=within 8 hours, formwork calcining process can be entered;
Four, formwork roasting cast
(6) sintering temperature: 850 ~ 950 DEG C, is incubated 1 ~ 2 hour;
(7) formwork is 500 ~ 700 DEG C of cast.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (1)
1. produce a method for precision stainless steel foundry goods with waterglass shell, it is characterized in that comprising the following steps:
One, fusible pattern
(1) the low temperature mould material of paraffin wax white and stearic acid each 50% is adopted; Injection pressure 0.2 ~ 0.5Mpa; Slack wax temperature 45 C ~ 48 DEG C; Insulation coolant-temperature gage 48 ~ 52 DEG C;
Two, shell processed
(2) surface layer steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.26 ~ 1.28;
Wetting agent: JFC, addition is 0.1 ~ 0.3% of waterglass weight;
Defoamer: silicone defoaming agent, addition is 0.05 ~ 0.1% of waterglass weight;
Sand: 100 ~ 120 orders or 80 ~ 100 zircon sand; Powder: 325 order zirconium English powder;
Curing agent: 18 ~ 24% ammonium chlorides;
Slurry adopts L-type mixer to stir; By the powder liquor ratio of 2.0 ~ 2.5:1 time with slurry, first add waterglass, after slowly add zirconium English powder, finally add wetting agent and defoamer stirs as uniform slurry, adopt capacity 100ml, leak Φ 6 normal viscosity test cup testing size viscosity is 35 ~ 45s; Newly join slurry agitation 24 as a child to use afterwards, remain old slurry and supplement new slurry and stir and can use for 8 hours, under stirring, be stained with slurry shell processed; If slurry several days need not, can powered-down, stir every day and within one hour, keep slurry not precipitate; After module is stained with slurry stucco, ammonium chloride pond sclerosis 15 ~ 20 minutes is put in natural drying after one hour, takes out natural drying 30 ~ 60 minutes, controls surface layer to the shell operation processed that can enter transition zone during not wet in vain state;
(3) transition zone steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.28 ~ 1.30;
Sand: 40 ~ 70 order purity quartzites; Powder: 270 ~ 300 orders refine silica flour;
Powder liquor ratio: 1.2 ~ 1.3:1;
Viscosity: 30 ~ 40s;
Defoamer: silicone defoaming agent, addition is 0.05 ~ 0.1% of waterglass weight;
Curing agent: the ammonium chloride of 18 ~ 24%;
Slurry adopts normal agitation machine to stir; New slurry stirs after 4 hours and uses, and remains old slurry and supplements after new slurry stirs one hour and can use, and module enters to harden after being stained with slurry stucco pond sclerosis 15 ~ 20 minutes, takes out natural drying 20 ~ 40 minutes, can enter back-up coat shell operation;
(4) back-up coat steps of raw and auxiliary material proportioning is as follows:
Waterglass: modulus (m) 3.1 ~ 3.3; Density (d) 1.31 ~ 1.33;
Sand: do not reclaim sand, ground floor 20 ~ 40 order, the second layer 10 ~ 30 order, third layer 0 ~ 20 order;
Powder: 170 ~ 200 object high-alumina refractory powder;
Powder liquor ratio: 1.05 ~ 1.5:1;
Curing agent: crystal aluminum chloride, density (d) 1.16 ~ 1.20;
Slurry adopts normal agitation machine to stir, and namely stirs i.e. use, time with slurry, add powder, stir after first adding waterglass; One deck slurry viscosity 20 ~ 30s, natural drying in 20 ~ 30 minutes 10 ~ 20 minutes of hardening; Two layers of slurry viscosity 30 ~ 40s, harden 30 ~ 40 minutes, natural drying 10 ~ 20 minutes; Slurry viscosity 45 ~ 55s after three layers and three layers, hardens 40 ~ 50 minutes, natural drying 10 ~ 20 minutes; Slurry seal harden within 20 minutes, take out natural drying >=8 hour after can enter dewaxing operation;
Three, formwork dewaxing
(5) dewax coolant-temperature gage 95 ~ 98 DEG C, adds ammonium chloride 2 ~ 3%;
(6) dewax the time: 20 ~ 40 minutes;
(7) after dewaxing >=within 8 hours, formwork calcining process can be entered;
Four, formwork roasting cast
(6) sintering temperature: 850 ~ 950 DEG C, is incubated 1 ~ 2 hour;
(7) formwork is 500 ~ 700 DEG C of cast.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410145298.5A CN103934416B (en) | 2014-04-11 | 2014-04-11 | A kind of waterglass shell produces the method for precision stainless steel foundry goods |
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| CN201410145298.5A CN103934416B (en) | 2014-04-11 | 2014-04-11 | A kind of waterglass shell produces the method for precision stainless steel foundry goods |
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| CN103934416B true CN103934416B (en) | 2016-02-03 |
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| CN104722703A (en) * | 2015-04-03 | 2015-06-24 | 莱芜市泰钢新材料有限责任公司 | Production method of precision casting surface layer sizing agent |
| CN106046807A (en) * | 2016-06-20 | 2016-10-26 | 安徽宜安精密机械零部件有限公司 | High heat stability precision casting wax and preparation method thereof |
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| CN107755634A (en) * | 2017-09-01 | 2018-03-06 | 东风精密铸造安徽有限公司 | A kind of shell side method processed of waterglass Ludox composite shell |
| CN109014015A (en) * | 2018-09-04 | 2018-12-18 | 霍山县忠福机电科技有限公司 | A kind of waterglass casing tech by lost wax casting |
| CN110976768A (en) * | 2019-12-24 | 2020-04-10 | 浙江瑞朗特种合金材料有限公司 | Shell manufacturing process of alloy casting |
| CN111390109A (en) * | 2020-02-28 | 2020-07-10 | 元祥精密机电新沂有限公司 | Production process of marine stainless steel shell casting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194840A (en) * | 1987-02-06 | 1988-08-12 | Mitsubishi Heavy Ind Ltd | Casting method for two layer stainless casting steel product |
| CN101092656A (en) * | 2007-04-30 | 2007-12-26 | 郑州永通特钢有限公司 | Method for smelting base metal of low phosphorous stainless steel by using low-grade limonite of containing nickel-chromium |
| CN101125354A (en) * | 2007-09-06 | 2008-02-20 | 甘肃省永靖昌盛铸钢有限责任公司 | Composite sand mould material for producing stainless steel casting and method for casting stainless steel casting |
| CN102601307A (en) * | 2012-04-13 | 2012-07-25 | 北京工业大学 | Preparation method of shell mold for investment casting of TiAl based alloy |
| CN102717030A (en) * | 2012-06-14 | 2012-10-10 | 西安西工大超晶科技发展有限责任公司 | Precision casting method for thick-wall base aluminium alloy casting |
-
2014
- 2014-04-11 CN CN201410145298.5A patent/CN103934416B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194840A (en) * | 1987-02-06 | 1988-08-12 | Mitsubishi Heavy Ind Ltd | Casting method for two layer stainless casting steel product |
| CN101092656A (en) * | 2007-04-30 | 2007-12-26 | 郑州永通特钢有限公司 | Method for smelting base metal of low phosphorous stainless steel by using low-grade limonite of containing nickel-chromium |
| CN101125354A (en) * | 2007-09-06 | 2008-02-20 | 甘肃省永靖昌盛铸钢有限责任公司 | Composite sand mould material for producing stainless steel casting and method for casting stainless steel casting |
| CN102601307A (en) * | 2012-04-13 | 2012-07-25 | 北京工业大学 | Preparation method of shell mold for investment casting of TiAl based alloy |
| CN102717030A (en) * | 2012-06-14 | 2012-10-10 | 西安西工大超晶科技发展有限责任公司 | Precision casting method for thick-wall base aluminium alloy casting |
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Denomination of invention: Method for producing precise stainless steel casting by sodium silicate shell making Effective date of registration: 20170728 Granted publication date: 20160203 Pledgee: Anhui Mount Holyoke Dabie financing Company limited by guarantee Pledgor: Anhui Huoshan Kewan Special Casting Co., Ltd. Registration number: 2017340000133 |
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Denomination of invention: Method for producing precise stainless steel casting by sodium silicate shell making Effective date of registration: 20180403 Granted publication date: 20160203 Pledgee: Anhui Mount Holyoke Dabie financing Company limited by guarantee Pledgor: Anhui Huoshan Kewan Special Casting Co., Ltd. Registration number: 2018340000094 |
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Date of cancellation: 20190318 Granted publication date: 20160203 Pledgee: Anhui Mount Holyoke Dabie financing Company limited by guarantee Pledgor: Anhui Huoshan Kewan Special Casting Co., Ltd. Registration number: 2018340000094 |
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Denomination of invention: Method for producing precise stainless steel casting by sodium silicate shell making Effective date of registration: 20190320 Granted publication date: 20160203 Pledgee: Anhui Mount Holyoke Dabie financing Company limited by guarantee Pledgor: Anhui Huoshan Kewan Special Casting Co., Ltd. Registration number: 2019340000153 |
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