CN104439041A - Core-making sand composition of warm core box and sand making method - Google Patents
Core-making sand composition of warm core box and sand making method Download PDFInfo
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- CN104439041A CN104439041A CN201410586239.1A CN201410586239A CN104439041A CN 104439041 A CN104439041 A CN 104439041A CN 201410586239 A CN201410586239 A CN 201410586239A CN 104439041 A CN104439041 A CN 104439041A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
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- Mechanical Engineering (AREA)
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- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a core-making sand composition of a warm core box and a sand making method. The composition comprises an inorganic binding agent, raw sand and non-crystallization type silicon oxide. According to the preparation method, a sand mixing machine is used for mixing, preferably a continuous sand mixing machine is adopted; the raw sand, sodium silicate and the non-crystallization type silicon oxide are automatically controlled by a pc to be fed; after the core-making sand composition is mixed, and is added into a core shooting machine sand bucket; a core-making mold is heated to 145-155 DEG C in advance to prepare the core-making sand composition; the core-making sand composition is shot into a mold cavity by a core shooting machine under the air pressure of 0.4Mpa-0.7Mpa; hot air of 120-160 DEG C is blown into a core-making cavity for 20-200 seconds; a thin core is blown for 20-40 seconds and the air blowing time is properly prolonged by a thick core; after the sand core is hardened, the box is opened and the sand core is ejected out; and the sand core can be poured on the day by assembling the box, and also can be poured by assembling the box after being stored for 3-5 days. The composition has a wide source, a high mechanical property and cheap price; and popularization and application are facilitated, the composition has no toxin and odor, and the environment protection is facilitated.
Description
Technical field
The invention belongs to casting technology field, relate to a kind of temperature core box coremaking sand composition and core-making method.
Background technology
Current core-making technique comprises: cold-box process, and mould does not need heating, normal temperature coremaking; Hot box process, coremaking temperature 180-250 DEG C; Precoated sand coremaking, coremaking temperature 270-300 DEG C.Above core-making technique all adopts artificial synthetic resin to do adhesive, complex manufacturing, and price is high, discharge in castings production process poisonous, have taste gas, working condition is poor, harm Field Force healthy.
In prior art, the mould material mixture in CN101027147A comprises: roughing sand, waterglass, amorphous silica.Amorphous silica in invention comprises: the byproduct silicon ash of precipitated silica, pyrolysismethod white carbon, production metallic silicon.Mould material mixture in CN 102807336A comprises: normal sand, a kind of silicate inorganic adhesive, cure-crosslinking agent, the chemical composition of cure-crosslinking agent is only provided in literary composition, explanation is not had to be what material, if exceed the scope of CN101027147A amorphous silica, the innovative point disclosing oneself that the inventor of CN 102807336A is natural.White carbon black production complex process, expensive, silicon ash calcium, magnesium alkali metal oxide content are high, and reduce the activity of waterglass, under identical waterglass addition, mechanical property is low.
Summary of the invention
The object of the invention is to the defect overcoming the existence of above-mentioned technology, provide a kind of temperature core box coremaking sand composition and core-making method, this composition source is wide, and mechanical property is high, low price, is conducive to applying, nonpoisonous and tasteless, is conducive to environmental protection.Its concrete technical scheme is:
A kind of warm core box coremaking sand composition, comprises inorganic binder, roughing sand, non-crystalline type silica; Mass percent shared by each constituent is: roughing sand 90-98.6%; Inorganic binder 1.2-5%, non-crystalline type silica 0.2-5%.
Preferably, roughing sand 97.14---97.66%; Inorganic binder 1.8-2.2%, non-crystalline type silica 0.54--0.66%.
Preferably, described roughing sand comprises great Lin and washes silica sand, cleans silica sand, enveloping field washing silica sand, scouring silica sand, sea, Fujian sand.
Preferably, described roughing sand is that great Lin washes silica sand.
Preferably, described inorganic binder comprises various casting water glass; Described casting water glass is Shenyang remittance sub-logical New Type Silicate HYT-S-104, New Type Silicate HYT-S-105, New Type Silicate HYT-S-106.
Preferably, described casting water glass is New Type Silicate HYT-S-104.
Preferably, described non-crystalline type silica is precipitated silica, pyrolysismethod white carbon, silicon ash, zirconium matter gaseous oxidation silicon.
Preferably, described non-crystalline type silica is zirconium matter gaseous oxidation silicon.
A core-making method for temperature core box coremaking sand composition of the present invention, comprises the following steps: adopt puddle mixer mixing, preferably adopt continuous muller, roughing sand, waterglass, non-crystalline type silica pc control feed automatically; Core shooter sand hopper is added after coremaking sand composition is mixed, die for making core is heated to 140-160 DEG C of coremaking sand composition in advance. under 0.4--0.7Mpa air pressure, mold cavity injected by coremaking sand composition core shooter, then is blown in core die cavity by 120-160 DEG C of hot-air, gassing time 20-200s; The thin core of 3-25mm blows 20-40s, is greater than 25mm thick core proper extension gassing time, opens box and eject core after core sclerosis, and core can be poured into a mould in mould assembling on the same day, also can deposit mould assembling cast after 3-5 days.
Preferably, described puddle mixer adopts continuous muller.
Compared with prior art, beneficial effect of the present invention is: zirconium matter gaseous oxidation silicon source is wide, and low price is that white carbon is incomparable.Zirconium matter gaseous oxidation silicon purity height objectionable impurities compared with silicon ash is few, and particle size is little, and chemism is high, coremaking (type) sand composition good fluidity, institute's coremaking (type) mechanical property is high, and resistance to water soak is strong, resting period is long, is convenient to tissue and produces.
Waterglass is nontoxic, tasteless, warm core box coremaking, and coremaking temperature is low, significantly can improve coremaking (type) working condition.Ensure that Field Force's is healthy.
The present invention's temperature core box coremaking (type) sand composition is compared with resin coremaking, and gas forming amount reduces more than 90%, and bleb shortcoming is few, and casting yield is high.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme of the present invention is described in more detail.
Sand composition of the present invention, at standard " 8 " mould 140-160 DEG C, blows 120-150 DEG C of hot-air 40s and hardens; A kind of zirconium matter gaseous oxidation silicon is provided in coremaking (type) composition especially, compared with adding white carbon with conventional art, wide low price of originating; With add sand composition good stability compared with silicon ash, good fluidity, mechanical property are high, resistance to water soak is strong.
Embodiment 1, enveloping field washed-out sand 1000g, converge sub-logical New Type Silicate HYT-S-104 in Shenyang, 20g, zirconium matter gaseous oxidation silicon 6g, mix with laboratory blade puddle mixer, coremaking (type) sand composition is loaded blasting unit, standard " 8 " type sample experiment mould heats 150 DEG C in advance, under 0.6Mpa, with compressed air, coremaking (type) sand composition is injected standard " 8 " type sample experiment mould, under 0.2Mpa, the hot-air of 120--150 DEG C is blown into standard " 8 " type sample experiment mould, gassing time 40s, open box and get core, manufacture 10 cores, by hydraulic test machine testing " 8 " type sample tensile strength, real-time intensity is surveyed in 60s, get the mean value of 5 samples, after 4h test specimens cool after intensity, get the mean value of 5 samples.Instant tensile strength is greater than 0.8Mpa, and the tensile strength after 4h is greater than 2.0Mpa.
Embodiment 2, great Lin washed-out sand 1000g, converge sub-logical New Type Silicate HYT-S-105,20g, the mixing of silicon ash 6g laboratory blade puddle mixer in Shenyang, is coremaking (type) sand composition 1; great Lin washed-out sand 1000g, converge sub-logical New Type Silicate HYT-S-105,20g in Shenyang, and zirconium matter gaseous oxidation silicon 6g, with the mixing of laboratory blade puddle mixer, is coremaking (type) sand composition 2.With " casting handbook. Modeling Material 4 " the sand compound mobility mensuration recommended: side opening mass method, detect the mobility of 2 kinds of coremaking (type) sand compositions, add the sand composition of silicon ash, the mobility of 1 is 2.4-3.0g; The mobility adding the sand composition 2 of zirconium matter gaseous oxidation silicon is: 4.9-6.2g; The mobility adding the sand premixed systems of silicon ash is far below the mobility of the thin compound of sand adding zirconium matter gaseous oxidation silicon.
Coremaking (type) sand composition is loaded blasting unit by sand mixing, standard " 8 " type sample experiment mould heats 150 DEG C in advance, under 0.6Mpa, with compressed air, coremaking (type) sand composition is injected standard " 8 " type sample experiment mould, under 0.2Mpa, the hot-air of 120--150 DEG C is blown into standard " 8 " type sample experiment mould, gassing time 40s, open box and get core, each manufacture 5 cores, dry in the air cool after put into 92% relative humidities under, place 24h hydraulic test machine testing " 8 " type sample tensile strength, , add the sample tensile strength 1.0-1.4Mpa of zirconium matter gaseous oxidation silicon, add the sample tensile strength 0.7-1.0Mpa of silicon ash.This index proves to add zirconium matter gaseous oxidation silicon, and core resistance to water soak is good.
Embodiment 3, great Lin washed-out sand 1000g, converge sub-logical New Type Silicate HYT-S-104,25g, zirconium matter gaseous oxidation silicon 8g in Shenyang, mixes with laboratory blade puddle mixer.
Coremaking (type) sand composition is loaded blasting unit by sand mixing, standard " 8 " type sample experiment mould heats 150 DEG C in advance, under 0.6Mpa, with compressed air, coremaking (type) sand composition is injected standard " 8 " type sample experiment mould, under 0.2Mpa, the hot-air of 120--150 DEG C is blown into standard " 8 " type sample experiment mould, gassing time 40s, open box and get core, manufacture 10 cores, by hydraulic test machine testing " 8 " type sample tensile strength, survey real-time intensity in 60s, get the mean value of 5 samples; After 4h test specimens cool after intensity, get the mean value of 5 samples.Instant tensile strength is greater than 0.8Mpa, and the tensile strength after 4h is greater than 2.8Mpa.
Embodiment 4, great Lin washed-out sand 2000g, converge sub-logical New Type Silicate HYT S-104,40g, zirconium matter gaseous oxidation silicon 15g in Shenyang, mixes with laboratory blade puddle mixer.
Coremaking (type) sand composition is loaded blasting unit by sand mixing, standard " 8 " type sample experiment mould heats 150 DEG C in advance, under 0.6Mpa, with compressed air, coremaking (type) sand composition is injected standard " 8 " type sample experiment mould, under 0.2Mpa, the hot-air of 120--150 DEG C is blown into standard " 8 " type sample experiment mould, gassing time 40s, open box and get core, manufacture 20 cores, under being placed on 60% relative humidities, by hydraulic test machine testing " 8 " type sample tensile strength, survey tensile strength after 24h, get the mean value of 5 samples; Tested for tensile strength after 48h, gets tested for tensile strength after the mean value 72h of 5 samples, gets tested for tensile strength after the mean value 96h of 5 samples, gets the mean value of 5 samples.Tensile strength is greater than 1.9-2.0Mpa respectively, 1.8-1.9Mpa, 16-1.7Mp, 1.4-1.6Mpa.
Embodiment 5, enveloping field washed-out sand 1000g, converge sub-logical New Type Silicate HYT-S-104,15g, zirconium matter gaseous oxidation silicon 4.5g in Shenyang, mixes with laboratory blade puddle mixer.
Coremaking (type) sand composition is loaded blasting unit by sand mixing, standard " 8 " type sample experiment mould heats 150 DEG C in advance, under 0.6Mpa, with compressed air, coremaking (type) sand composition is injected standard " 8 " type sample experiment mould, under 0.2Mpa, the hot-air of 120--150 DEG C is blown into standard " 8 " type sample experiment mould, gassing time 40s, open box and get core, manufacture 10 cores, by hydraulic test machine testing " 8 " type sample tensile strength, survey real-time intensity in 60s, get the mean value of 5 samples, instant tensile strength is greater than 0.8Mpa; After 4h test specimens cool after intensity, get the mean value of 5 samples, the tensile strength 1.8Mpa after sample is cool.
Embodiment 6 (comparative example), normal sand 1000g, converge sub-logical New Type Silicate HYT-S-104,20g, zirconium matter gaseous oxidation silicon 6g in Shenyang, mixes with laboratory blade puddle mixer.
Coremaking (type) sand composition is loaded blasting unit by sand mixing, standard " 8 " type sample experiment mould heats 150 DEG C in advance, under 0.6Mpa, with compressed air, coremaking (type) sand composition is injected standard " 8 " type sample experiment mould, under 0.2Mpa, the hot-air of 120--150 DEG C is blown into standard " 8 " type sample experiment mould, gassing time 40s, open box and get core, manufacture 10 cores, by hydraulic test machine testing " 8 " type sample tensile strength, after 4h test specimens cool after intensity, get the mean value of 5 samples, tensile strength 2.2Mpa after sample is cool.
In CN 102807336A embodiment 2; " type processed (core) composition: add 60g silicate inorganic binder and add, 12g cure-crosslinking agent in the 70/100 order normal sand of 2kg, in this cure-crosslinking agent, a constituent content is: silica 75%; alundum (Al2O3) 1.2%; di-iron trioxide 1.2%, magnesia 0.8%, calcium oxide 0.4%; sodium oxide molybdena 1.5% and water 19.9%; under 160 DEG C of conditions, heat cure 2 minutes, and recording average bending strength is 3.8MPa; tensile strength is 1.7MPa, "
The present invention is identical at roughing sand, and adhesive adds 2% (accounting for roughing sand), zirconium matter gaseous oxidation silicon 0.6%, (accounting for roughing sand) tensile strength 2.2Mpa;
CN 102807336A silicate inorganic binder adds 3% (accounting for roughing sand), cure-crosslinking agent 0.6% (accounting for roughing sand), and tensile strength is 1.7MPa.
Mechanical property of the present invention is far above CN 102807336A.
The above; be only the present invention's preferably detailed description of the invention; protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen within the scope of protection of the present invention.
Claims (10)
1. a warm core box coremaking sand composition, is characterized in that, comprises inorganic binder, roughing sand, non-crystalline type silica; Mass percent shared by each constituent is: roughing sand 90-98.6%; Inorganic binder 1.2-5%, noncrystalline silica 0.2-5%.
2. temperature core box coremaking sand composition according to claim 1, is characterized in that, described roughing sand comprises great Lin and washes silica sand, cleans silica sand, enveloping field washing silica sand, scouring silica sand, sea, Fujian sand.
3. temperature core box coremaking sand composition according to claim 2, it is characterized in that, described roughing sand is great Lin washed-out sand.
4. temperature core box coremaking sand composition according to claim 1, it is characterized in that, described inorganic binder comprises various casting water glass; Described casting water glass is Shenyang remittance sub-logical New Type Silicate HYT-S-104, New Type Silicate HYT-S-105, New Type Silicate HYT-S-106.
5. temperature core box coremaking sand composition according to claim 4, it is characterized in that, described casting water glass is New Type Silicate HYT-S-104.
6. temperature core box coremaking sand composition according to claim 1, is characterized in that, described non-crystalline type silica is precipitated silica, pyrolysismethod white carbon, silicon ash, zirconium matter gaseous oxidation silicon.
7. temperature core box coremaking sand composition according to claim 6, is characterized in that, described non-crystalline type silica is zirconium matter gaseous oxidation silicon.
8. temperature core box coremaking sand composition according to claim 1, is characterized in that, described roughing sand 97.14---97.66%; Inorganic binder 1.8-2.2%, noncrystalline silica 0.54--0.66%.
9. a core-making method for warm core box coremaking sand composition described in claim 1, is characterized in that, comprise the following steps: adopt puddle mixer mixing, preferably adopt continuous muller, roughing sand, waterglass, non-crystalline type silica pc control feed automatically; Core shooter sand hopper is added after coremaking sand composition is mixed, die for making core is heated to 145-155 DEG C of coremaking sand composition in advance. under 0.4--0.7Mpa air pressure, mold cavity injected by coremaking sand composition core shooter, then is blown in core die cavity by 120-160 DEG C of hot-air, 20-200s; The thin core of 3-25mm blows 20-40s, is greater than 25mm thick core proper extension gassing time, opens box and eject core after core sclerosis, and core can be poured into a mould in mould assembling on the same day, also can deposit mould assembling cast after 3-5 days.
10. the core-making method of warm core box coremaking sand composition according to claim 8, is characterized in that, described puddle mixer adopts continuous muller.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964908A (en) * | 2016-06-15 | 2016-09-28 | 安徽省含山县林头振皖铸造厂 | Cold-core box precoated sand casting technology of rivet plate for bridge |
| CN105964909A (en) * | 2016-06-15 | 2016-09-28 | 安徽省含山县林头振皖铸造厂 | Cold-core box precoated sand casting technology of motor pedestal |
| CN106378420A (en) * | 2016-03-08 | 2017-02-08 | 沈阳汇亚通铸造材料有限责任公司 | Mould core making method for casting sodium silicate sand air-blowing hardening |
| CN106862480A (en) * | 2017-01-23 | 2017-06-20 | 中国第汽车股份有限公司 | A kind of high mode inorganic binder |
| CN109420743A (en) * | 2017-08-31 | 2019-03-05 | 沈阳汇亚通铸造材料有限责任公司 | A kind of efficient core-making method of water-glass sand air blowing hardening |
| CN109954837A (en) * | 2017-12-22 | 2019-07-02 | 沈阳汇亚通铸造材料有限责任公司 | A kind of carbonic anhydride induration cold box core-manufacturing composition and core-making method |
| CN112792300A (en) * | 2020-12-31 | 2021-05-14 | 沈阳汇亚通铸造材料有限责任公司 | Method for manufacturing sand core by using warm core box and sand core |
| CN113263134A (en) * | 2021-05-12 | 2021-08-17 | 沈阳工业大学 | Additive for core making of composite hardened sodium silicate sand and application thereof |
| CN113510217A (en) * | 2021-09-15 | 2021-10-19 | 中车戚墅堰机车车辆工艺研究所有限公司 | Inorganic dry precoated sand for warm core box molding and core making method thereof |
| CN115043105A (en) * | 2022-05-31 | 2022-09-13 | 中国第一汽车股份有限公司 | Cold box resin sand core storage process |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1419980A (en) * | 2001-11-21 | 2003-05-28 | 沈阳汇亚通铸造材料有限责任公司 | Method for making core by blowing to harden cold-box |
| CN101007335A (en) * | 2006-01-23 | 2007-08-01 | 沈阳汇亚通铸造材料有限责任公司 | Ester curing type sand binder for casting and its preparation method |
| CN101027147A (en) * | 2004-09-02 | 2007-08-29 | 阿斯林根有限公司 | Material mixture for producing casting moulds for machining metal |
| CN101108407A (en) * | 2006-07-18 | 2008-01-23 | 沈阳汇亚通铸造材料有限责任公司 | Adhesive for casting mold, manufacturing core and method of manufacturing the same |
| CN101293271A (en) * | 2007-04-24 | 2008-10-29 | 沈阳汇亚通铸造材料有限责任公司 | Method for making core with aeration ossification |
| WO2009062070A1 (en) * | 2007-11-07 | 2009-05-14 | Igc Technologies, Llc | Material used to combat thermal expansion related defects in high temperature casting processes |
| US20090314461A1 (en) * | 2008-06-20 | 2009-12-24 | Prince Minerals, Inc. | Anti-Veining Agent for Metal Casting |
| CN101658898A (en) * | 2009-09-16 | 2010-03-03 | 沈阳汇亚通铸造材料有限责任公司 | Preparation method of casting water glass |
| CN101842175A (en) * | 2007-10-30 | 2010-09-22 | 阿什兰-苏德舍米-克恩费斯特有限公司 | Mould material mixture with flowability of improvement |
| CN101947637A (en) * | 2010-08-18 | 2011-01-19 | 沈阳汇亚通铸造材料有限责任公司 | Modified sodium silicate binder for cold core box and preparation thereof |
| WO2012104096A1 (en) * | 2011-02-04 | 2012-08-09 | Ask Chemicals L.P. | Sand additives for molds/cores for metal casting |
| CN102773402A (en) * | 2012-08-27 | 2012-11-14 | 重庆长江造型材料（集团）有限公司 | Methods for making core by using silicate inorganic binder sand |
| CN104259379A (en) * | 2014-09-30 | 2015-01-07 | 济南圣泉集团股份有限公司 | Collapsibility enhancer for sodium silicate-bonded sand |
-
2014
- 2014-10-20 CN CN201410586239.1A patent/CN104439041A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1419980A (en) * | 2001-11-21 | 2003-05-28 | 沈阳汇亚通铸造材料有限责任公司 | Method for making core by blowing to harden cold-box |
| CN101027147A (en) * | 2004-09-02 | 2007-08-29 | 阿斯林根有限公司 | Material mixture for producing casting moulds for machining metal |
| CN101007335A (en) * | 2006-01-23 | 2007-08-01 | 沈阳汇亚通铸造材料有限责任公司 | Ester curing type sand binder for casting and its preparation method |
| CN101108407A (en) * | 2006-07-18 | 2008-01-23 | 沈阳汇亚通铸造材料有限责任公司 | Adhesive for casting mold, manufacturing core and method of manufacturing the same |
| CN101293271A (en) * | 2007-04-24 | 2008-10-29 | 沈阳汇亚通铸造材料有限责任公司 | Method for making core with aeration ossification |
| CN101842175A (en) * | 2007-10-30 | 2010-09-22 | 阿什兰-苏德舍米-克恩费斯特有限公司 | Mould material mixture with flowability of improvement |
| WO2009062070A1 (en) * | 2007-11-07 | 2009-05-14 | Igc Technologies, Llc | Material used to combat thermal expansion related defects in high temperature casting processes |
| US20090314461A1 (en) * | 2008-06-20 | 2009-12-24 | Prince Minerals, Inc. | Anti-Veining Agent for Metal Casting |
| CN101658898A (en) * | 2009-09-16 | 2010-03-03 | 沈阳汇亚通铸造材料有限责任公司 | Preparation method of casting water glass |
| CN101947637A (en) * | 2010-08-18 | 2011-01-19 | 沈阳汇亚通铸造材料有限责任公司 | Modified sodium silicate binder for cold core box and preparation thereof |
| WO2012104096A1 (en) * | 2011-02-04 | 2012-08-09 | Ask Chemicals L.P. | Sand additives for molds/cores for metal casting |
| CN102773402A (en) * | 2012-08-27 | 2012-11-14 | 重庆长江造型材料（集团）有限公司 | Methods for making core by using silicate inorganic binder sand |
| CN104259379A (en) * | 2014-09-30 | 2015-01-07 | 济南圣泉集团股份有限公司 | Collapsibility enhancer for sodium silicate-bonded sand |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378420B (en) * | 2016-03-08 | 2021-04-06 | 沈阳汇亚通铸造材料有限责任公司 | Method for manufacturing mold and core by blowing and hardening sodium silicate sand for casting |
| CN106378420A (en) * | 2016-03-08 | 2017-02-08 | 沈阳汇亚通铸造材料有限责任公司 | Mould core making method for casting sodium silicate sand air-blowing hardening |
| CN105964909A (en) * | 2016-06-15 | 2016-09-28 | 安徽省含山县林头振皖铸造厂 | Cold-core box precoated sand casting technology of motor pedestal |
| CN105964908A (en) * | 2016-06-15 | 2016-09-28 | 安徽省含山县林头振皖铸造厂 | Cold-core box precoated sand casting technology of rivet plate for bridge |
| CN106862480A (en) * | 2017-01-23 | 2017-06-20 | 中国第汽车股份有限公司 | A kind of high mode inorganic binder |
| CN106862480B (en) * | 2017-01-23 | 2019-03-12 | 中国第一汽车股份有限公司 | A kind of high mode inorganic binder |
| CN109420743A (en) * | 2017-08-31 | 2019-03-05 | 沈阳汇亚通铸造材料有限责任公司 | A kind of efficient core-making method of water-glass sand air blowing hardening |
| CN109954837A (en) * | 2017-12-22 | 2019-07-02 | 沈阳汇亚通铸造材料有限责任公司 | A kind of carbonic anhydride induration cold box core-manufacturing composition and core-making method |
| CN112792300A (en) * | 2020-12-31 | 2021-05-14 | 沈阳汇亚通铸造材料有限责任公司 | Method for manufacturing sand core by using warm core box and sand core |
| CN113263134A (en) * | 2021-05-12 | 2021-08-17 | 沈阳工业大学 | Additive for core making of composite hardened sodium silicate sand and application thereof |
| CN113510217A (en) * | 2021-09-15 | 2021-10-19 | 中车戚墅堰机车车辆工艺研究所有限公司 | Inorganic dry precoated sand for warm core box molding and core making method thereof |
| CN113510217B (en) * | 2021-09-15 | 2021-12-24 | 中车戚墅堰机车车辆工艺研究所有限公司 | Inorganic dry precoated sand for warm core box molding and core making method thereof |
| CN115043105A (en) * | 2022-05-31 | 2022-09-13 | 中国第一汽车股份有限公司 | Cold box resin sand core storage process |
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Application publication date: 20150325 |