CN102836960A - Coating for metal casting EPC (Expandable Pattern Casting) - Google Patents
Coating for metal casting EPC (Expandable Pattern Casting) Download PDFInfo
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- CN102836960A CN102836960A CN2012103682766A CN201210368276A CN102836960A CN 102836960 A CN102836960 A CN 102836960A CN 2012103682766 A CN2012103682766 A CN 2012103682766A CN 201210368276 A CN201210368276 A CN 201210368276A CN 102836960 A CN102836960 A CN 102836960A
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Abstract
The invention relates to a coating for a metal casting EPC (Expandable Pattern Casting), which is proportioned as follows for different metal castings according to kilograms by weight: (1) a coating for an iron casting consists of the following components in proportion: 150kg of graphite powder, 30kg of flaky graphite powder, 3kg of cellulose, 0.5kg of methanol, 30kg of white latex adhesive and 100kg of water; (2) a coating for a steel casting consists of the following components in proportion: 350kg of silicon powder, 5kg of white latex adhesive, 0.5kg of methanol, 7.5kg of cellulose, 3kg of bentonite, 3kg of hexametaphosphate and 300kg of water; (3) a coating for a copper casting consists of the following components in proportion: 68 kg of graphite powder, 28kg of flaky graphite powder, 8kg of bauxite, 5.8kg of natriumized bentonite, 2kg of sugar syrup and 50kg of water; and (4) a chill coating consists of the following components in proportion: 48kg of unformed graphite powder, 19kg of flaky graphite powder, 48kg of ethanol and 25kg of PVA (polyvinyl acetate). When the coating is used, the components of the coatings are respectively proportioned corresponding to each casting mold, the coatings are respectively proportioned into slurry and completely stirred to be coated on casting molds made of different materials. The coating is high in strength.
Description
Technical field
The present invention relates to the metal casting technical field, relate in particular to the coating of the disappearance mould in the metal casting.
Background technology
In the metal casting all from not casting mould, between disappearance mould and foundry goods, use a coating, coating is coated on the mould, it is easily convenient to be convenient to mould and foundry goods demoulding, the while can be improved finished casting rate.The rete coating that on the disappearance mould, uses at present has prescription material miscellaneous to cooperate; The present invention is according to being engaged in metal casting practical experience for many years; Innovate on the formulation for coating material basis that the summary forefathers use, obtained effect preferably, the approval that obtains going together.
Summary of the invention
The coating that the purpose of this invention is to provide a kind of metal casting disappearance mould is divided into four groups of material proportions to different metallic material foundry goods.
1) the coating composition proportioning of ironcasting by weight: graphite powder 150, phosphorus flake graphite in powder 30, cellulose 3, methyl alcohol 0.5, white glue with vinyl 30, water 100.
2) the coating composition proportioning of steel-casting by weight: silicon powder 350, white glue with vinyl 5, methyl alcohol 0.5, cellulose 7.5, bentonite 3, hexa metaphosphoric acid 3, water 300.
3) the coating composition proportioning of copper casting by weight: graphite powder 68, phosphorus flake graphite 28, aluminium vanadine 8, sodium-ionized bentonite 5.8, syrup 2, water 50-60.
4) chill coating composition proportioning by weight: amorphous graphite powder 48, phosphorus flake graphite in powder 19, ethanol 48, PVA25.
Above-mentioned four kinds of coating composition proportionings, corresponding each casting die dissolves pulping respectively and fully stirs respectively with coating component and proportioning under it during use, coats on the different dies.
Adopt the beneficial effect of present technique scheme: this coating has the intensity height, and the transparency is good, and demoulding property is good, and cost of manufacture is low, can improve the high-quality yield rate of foundry goods.
The specific embodiment
The coating of metal casting disappearance mould of the present invention, specific embodiment:
1) ironcasting coating composition proportioning is pressed kilogram: graphite powder 150, phosphorus flake graphite in powder 30, cellulose 3, methyl alcohol 0.5, white glue with vinyl 30, water 100, dissolve pulping during use, and coat on the mould.
2) steel-casting coating composition proportioning is pressed kilogram: silicon powder 350, white glue with vinyl 5, methyl alcohol 0.5, cellulose 7.5, bentonite 3, hexa metaphosphoric acid 3, water 300, dissolve pulping during use, and coat on the mould.
3) copper casting coating composition proportioning is pressed kilogram: graphite powder 68, phosphorus flake graphite 28, aluminium vanadine 8, sodium-ionized bentonite 5.8, syrup 2, water 50; Dissolve during use on the pulping coating die.
4) the chill coating set of dispense is than pressing middle Lang Qianke: amorphous graphite powder 48, phosphorus flake graphite in powder 19, ethanol 48, PVA25; Dissolving pulping during use coats on the mould.
Claims (1)
1. the coating of a metal casting disappearance mould is characterized in that: the different metal foundry goods is divided into following proportioning, by weight kilogram:
1) ironcasting coating composition proportioning is pressed kilogram: graphite powder 150, phosphorus flake graphite in powder 30, cellulose 3, methyl alcohol 0.5, white glue with vinyl 30, water 100, dissolve pulping during use, and coat on the mould;
2) steel-casting coating composition proportioning is pressed kilogram: silicon powder 350, white glue with vinyl 5, methyl alcohol 0.5, cellulose 7.5, bentonite 3, hexa metaphosphoric acid 3, water 300, dissolve pulping during use, and coat on the mould;
3) copper casting coating composition proportioning is pressed kilogram: graphite powder 68, phosphorus flake graphite 28, aluminium vanadine 8, sodium-ionized bentonite 5.8, syrup 2, water 50; Dissolve during use on the pulping coating die;
4) the chill coating set of dispense is than pressing middle Lang Qianke: amorphous graphite powder 48, phosphorus flake graphite in powder 19, ethanol 48, PVA25; Dissolving pulping during use coats on the mould;
During use, corresponding each casting die with the coating composition proportioning under it, dissolves pulping respectively respectively, fully stirs, and coats on the unlike material casting die.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2012103682766A CN102836960A (en) | 2012-09-28 | 2012-09-28 | Coating for metal casting EPC (Expandable Pattern Casting) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2012103682766A CN102836960A (en) | 2012-09-28 | 2012-09-28 | Coating for metal casting EPC (Expandable Pattern Casting) |
Publications (1)
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CN102836960A true CN102836960A (en) | 2012-12-26 |
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CN2012103682766A Pending CN102836960A (en) | 2012-09-28 | 2012-09-28 | Coating for metal casting EPC (Expandable Pattern Casting) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104493077A (en) * | 2014-12-29 | 2015-04-08 | 南京理工大学常熟研究院有限公司 | Paint of chill for casting aluminum alloy |
CN111558686A (en) * | 2020-05-12 | 2020-08-21 | 唐山昊中科技有限公司 | Precoated sand shell type iron sand negative pressure casting coating |
Citations (5)
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CN101259514A (en) * | 2008-04-24 | 2008-09-10 | 重庆大学 | Mold material for casting non-ferrous metal and making technique |
CN101569918A (en) * | 2009-06-10 | 2009-11-04 | 刘则斌 | Coating for lost foam cast iron |
CN102179472A (en) * | 2011-03-14 | 2011-09-14 | 何剑锋 | Ductile iron coating for lost foam casting, and preparation method thereof |
CN102274924A (en) * | 2011-08-10 | 2011-12-14 | 山东兴华机械有限公司 | Coating for lost foam casting cast iron and production process thereof |
CN102357648A (en) * | 2011-10-13 | 2012-02-22 | 李华山 | Chill coating for casting |
-
2012
- 2012-09-28 CN CN2012103682766A patent/CN102836960A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101259514A (en) * | 2008-04-24 | 2008-09-10 | 重庆大学 | Mold material for casting non-ferrous metal and making technique |
CN101569918A (en) * | 2009-06-10 | 2009-11-04 | 刘则斌 | Coating for lost foam cast iron |
CN102179472A (en) * | 2011-03-14 | 2011-09-14 | 何剑锋 | Ductile iron coating for lost foam casting, and preparation method thereof |
CN102274924A (en) * | 2011-08-10 | 2011-12-14 | 山东兴华机械有限公司 | Coating for lost foam casting cast iron and production process thereof |
CN102357648A (en) * | 2011-10-13 | 2012-02-22 | 李华山 | Chill coating for casting |
Non-Patent Citations (5)
Title |
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咸阳机器制造学校: "《铸造生产基础》", 31 October 1994, 机械工业出版社 * |
梁贺等: "消失模涂料概述", 《河北工业科技》 * |
董秀琦等: "《消失模铸造实用技术》", 31 August 2005, 机械工业出版社 * |
韩小峰: "《铸造生产与工艺工装设计》", 31 October 2010, 中南大学出版社 * |
黄天佑: "《铸造手册》", 31 January 2012, 机械工业出版社 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104493077A (en) * | 2014-12-29 | 2015-04-08 | 南京理工大学常熟研究院有限公司 | Paint of chill for casting aluminum alloy |
CN111558686A (en) * | 2020-05-12 | 2020-08-21 | 唐山昊中科技有限公司 | Precoated sand shell type iron sand negative pressure casting coating |
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Application publication date: 20121226 |