CN102836961B - Lost foam coating for large casting and preparation method of lost foam coating - Google Patents
Lost foam coating for large casting and preparation method of lost foam coating Download PDFInfo
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- CN102836961B CN102836961B CN201210379149.6A CN201210379149A CN102836961B CN 102836961 B CN102836961 B CN 102836961B CN 201210379149 A CN201210379149 A CN 201210379149A CN 102836961 B CN102836961 B CN 102836961B
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Abstract
The invention discloses a lost foam coating for a large casting. The lost foam coating comprises the following components in parts by weight: 18 parts of quartz powder, 14 parts of potash feldspar powder, 8 parts of brown alumina, 5 parts of white alundum, 15 parts of bauxite, 20 parts of talc powder, 20 parts of graphite powder, 1.5 parts of latex, 2 parts of silica sol, 1.5 parts of resin particles, 1 part of sodium-based bentonite, 0.5 part of methyl cellulose, 0.2 part of potassium permanganate and 50 parts of water. A preparation method of the lost foam coating comprises the following steps of: (1) mixing, stirring and fully dissolving the latex, the silica sol, the resin particles and water according to the proportion and standing for 10 minutes; and (2) adding the rest component materials according to the proportion, stirring while adding, and stirring for 4 hours. Lost foam using the coating provided by the invention has the advantages of high strength, good high temperature resistance and good collapsibility, can overcome the defects of high probability of deformation and poor surface finish of the large casting of over 5 tons and is suitable for casting the large casting of over 5 tons. The preparation method is simple and reliable and low in cost.
Description
Technical field
The present invention relates to a kind of coating, relate in particular to a kind of lost foam paint for casting large-scale foundry goods; Also relate to a kind of preparation method of this coating.
Background technology
Lost foam casting is a kind of more advanced casting method.Existing evaporative pattern is to be all coated with and to coat again after or foaming bonding with cystosepiment.Lost foam paint is the key factor of lost foam casting quality.It is very high that 5 tons of above heavy castings require the coating of evaporative pattern, for guaranteeing the castability of heavy castings, require lost foam paint can be high temperature resistant, intensity is high and collapsibility good, to ensure that foundry goods is indeformable, any surface finish.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of can be high temperature resistant, intensity is high, collapsibility the is good lost foam paint that is suitable for more than 5 tons heavy castings.
Another object of the present invention is to provide a kind of method of preparing described coating.
In order to solve the problems of the technologies described above, lost foam paint of the present invention, its component and weight portion thereof are: 18 parts of silica flours, 14 parts of feldspars in powder, 8 parts, brown corundum, 5 parts of white fused aluminas, 15 parts of bauxites, 20 parts of talcum powder, 20 parts of graphite powders, 1.5 parts of latexes, 2 parts of Ludox, 1.5 parts of resin particles, 1 part of sodium bentonite, 0.5 part of methylcellulose, 0.2 part, aluminum sulfate, 50 parts, water.
In said components material, silica flour, feldspar in powder, brown corundum, white fused alumina, bauxite, talcum powder and graphite powder are the aggregates of coating of the present invention, energy is high temperature resistant, the intensity of enhancing coating, wherein adds feldspar in powder, brown corundum and white fused alumina more can improve the resistance to elevated temperatures of coating, the intensity of enhancing coating; Latex, Ludox and resin particle are binding agents; Sodium bentonite and methylcellulose are suspending agents; Aluminum sulfate is dispersant, add aluminum sulfate can improve coating collapsibility, ensured any surface finish of foundry goods.
Use that the evaporative pattern intensity of coating of the present invention is high, resistance to elevated temperatures good, collapsibility good, can overcome that more than 5 tons heavy castings are yielding, the defect of poor surface smoothness, be suitable for the casting of more than 5 tons heavy castings.
The preparation method of described coating provided by the invention comprises the steps: that (1) first makes abundant dissolving by the latex of described ratio, Ludox, resin particle and water mix and blend, leaves standstill 10 minutes; (2) add all the other component materials in described ratio, limit edged stirs, stir 40 minutes.Preparation method is simple, reliable, and cost is low.
Also can adopt and prepare the method preparation that lost foam paint is conventional.
Detailed description of the invention
The present invention is described in detail below:
Lost foam paint component of the present invention and weight portion thereof are: 18 parts of silica flours, 14 parts of feldspars in powder, 8 parts, brown corundum, 5 parts of white fused aluminas, 15 parts of bauxites, 20 parts of talcum powder, 20 parts of graphite powders, 1.5 parts of latexes, 2 parts of Ludox, 1.5 parts of resin particles, 1 part of sodium bentonite, 0.5 part of methylcellulose, 0.2 part, aluminum sulfate, 50 parts, water.
Its preparation method comprises the steps: that (1) first makes abundant dissolving by the latex of described ratio, Ludox, resin particle and water mix and blend, leaves standstill 10 hours; (2) add all the other components in described ratio and add aggregate, limit edged stirs, stir 40 minutes.
Claims (1)
1. a heavy castings lost foam paint, is made up of the component of following weight portion: 18 parts of silica flours, 14 parts of feldspars in powder, 8 parts, brown corundum, 5 parts of white fused aluminas, 15 parts of bauxites, 20 parts of talcum powder, 20 parts of graphite powders, 1.5 parts of latexes, 2 parts of Ludox, 1.5 parts of resin particles, 1 part of sodium bentonite, 0.5 part of methylcellulose, 0.2 part, aluminum sulfate, 50 parts, water; Preparation method comprises the steps: that (1) first makes abundant dissolving by the latex of described ratio, Ludox, resin particle and water mix and blend, leaves standstill 10 minutes; (2) add all the other component materials in described ratio, limit edged stirs, stir 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379149.6A CN102836961B (en) | 2012-10-09 | 2012-10-09 | Lost foam coating for large casting and preparation method of lost foam coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379149.6A CN102836961B (en) | 2012-10-09 | 2012-10-09 | Lost foam coating for large casting and preparation method of lost foam coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102836961A CN102836961A (en) | 2012-12-26 |
| CN102836961B true CN102836961B (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210379149.6A Active CN102836961B (en) | 2012-10-09 | 2012-10-09 | Lost foam coating for large casting and preparation method of lost foam coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN102836961B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108515141A (en) * | 2018-04-26 | 2018-09-11 | 贵阳灵峰铸造材料有限公司 | Novel casting coating and preparation method thereof for heavy castings and cylinder block and head |
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| CN103056289B (en) * | 2013-01-25 | 2014-12-10 | 马鞍山市华达冶金机械有限公司 | Casting paint for high-chromium cast iron and preparation method thereof |
| CN103056288B (en) * | 2013-01-25 | 2014-12-03 | 马鞍山市华达冶金机械有限公司 | Lost foam casting paint for chromium-containing cast iron and preparation method thereof |
| CN103909211B (en) * | 2014-03-27 | 2016-08-24 | 吉安汇诚实业发展有限公司 | A kind of from peeling off paint specially for disappearing cast mold |
| CN104084529B (en) * | 2014-06-16 | 2016-08-24 | 芜湖市鸿坤汽车零部件有限公司 | A kind of modified steel scoria alcohol-base foundry coating and preparation method thereof |
| CN104624922A (en) * | 2015-01-29 | 2015-05-20 | 石家庄满鼎福铸造有限公司 | Lost foam casting coating for gray cast iron and preparation method of lost foam casting coating |
| CN105562595A (en) * | 2016-01-19 | 2016-05-11 | 安徽涌畅铸件有限公司 | Coating with high binding performance for full mold and preparation method of coating |
| CN105710287A (en) * | 2016-05-10 | 2016-06-29 | 天津泽希矿产加工有限公司 | Investment casting shell coating and method for manufacturing shell surface with same |
| CN109294298A (en) * | 2018-10-16 | 2019-02-01 | 北京隆源纳欣科技有限公司 | One kind being applied to high temperature steel antioxidant coating and preparation method thereof |
| CN110421116A (en) * | 2019-09-16 | 2019-11-08 | 安徽信息工程学院 | A kind of as cast condition WCB cast steel evaporative pattern water base environmental protection coating material and preparation method thereof |
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| CN102407275A (en) * | 2011-04-25 | 2012-04-11 | 湖北工业大学 | Expendable pattern casting (EPC) molding shell paint for casting steel and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108515141A (en) * | 2018-04-26 | 2018-09-11 | 贵阳灵峰铸造材料有限公司 | Novel casting coating and preparation method thereof for heavy castings and cylinder block and head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102836961A (en) | 2012-12-26 |
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Effective date of registration: 20150925 Address after: 523000, No. 772 west view, rhino village, Dalang Town, Dongguan, Guangdong Patentee after: DONGGUAN JUGAO MACHINE TOOLS Co.,Ltd. Address before: 424500 Tan Tong Industrial Park, Jiahe County, Hunan, Chenzhou Patentee before: JIAHE JUREN MACHINE TOOL Co.,Ltd. |
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Effective date of registration: 20160107 Address after: 424500 Tan Tong Industrial Park, Jiahe County, Hunan, Chenzhou Patentee after: JIAHE JUREN MACHINE TOOL Co.,Ltd. Address before: 523000, No. 772 west view, rhino village, Dalang Town, Dongguan, Guangdong Patentee before: DONGGUAN JUGAO MACHINE TOOLS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 424500 Tan Tong Industrial Park, Jiahe County, Hunan, Chenzhou Patentee after: HUNAN JUREN MACHINE TOOLS GROUP CO.,LTD. Address before: 424500 Tan Tong Industrial Park, Jiahe County, Hunan, Chenzhou Patentee before: Hunan Giant Machine Tool Co.,Ltd. Address after: 424500 Tan Tong Industrial Park, Jiahe County, Hunan, Chenzhou Patentee after: Hunan Giant Machine Tool Co.,Ltd. Address before: 424500 Tan Tong Industrial Park, Jiahe County, Hunan, Chenzhou Patentee before: JIAHE JUREN MACHINE TOOL Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |