CN102836952A - Resin sand type casting coating and preparation method thereof - Google Patents
Resin sand type casting coating and preparation method thereof Download PDFInfo
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- CN102836952A CN102836952A CN2012103194847A CN201210319484A CN102836952A CN 102836952 A CN102836952 A CN 102836952A CN 2012103194847 A CN2012103194847 A CN 2012103194847A CN 201210319484 A CN201210319484 A CN 201210319484A CN 102836952 A CN102836952 A CN 102836952A
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Abstract
The invention relates to a resin sand type casting coating and a preparation method thereof, wherein the coating consists of the following components: graphite powder, zircon sand, porzite powder, spodumene powder, sodium bentonite, alkali phenolic resin, silica sol, polyvinyl acetate, carboxymethylcellulose sodium, sodium alkylbenzenesulfonate, fatty alcohol-polyoxyethylene ether and water. The resin sand type casting coating provided by the invention has the advantages of good suspension property, high strength, uniform coating layer and good leveling property. The surface of the dried coating is bright and clean and is free of cavities, bubbles, cracks and the like. After the resin sand type casting coating is used, the cast casting is very high in surface smoothness.
Description
Technical field
The invention belongs to casting field, particularly the resin bonded sand mould casting technology field.
Background technology
In casting cycle, the resin that between the grains of sand, plays solidification is burnt decomposition to resin sand as sand mold, and the connection between the sand grains is destroyed, and high-temperature liquid metal will be penetrated in the sand mold, causes scab.Burn simultaneously and decompose a large amount of gases of back formation, keep cast(ing) surface and form gas hole defect.
Used coating in the sand casting; Main effect is to play shielding action; Under cast temperature, can form the density fireproof coating, prevent that promptly molten metal from infiltrating in the sand mold, prevent that also the gas that thermal decomposition produces in the molding sand from getting into molten metal in whose surfaces; Can obtain the foundry goods of any surface finish, surface quality of continuous castings, opposing molten metal are washed away sand mold, prevent that foundry goods scab property etc. from playing an important role.Improve constantly along with what surface quality of continuous castings was required, the application of coating seems more and more important.
But original coating coating, caking property are relatively poor, have had a strong impact on surface quality of continuous castings.
Summary of the invention
The objective of the invention is to propose a kind of deficiency that can overcome above existing coating, have resin bonded sand mould cast paint of superperformance and preparation method thereof.
Resin bonded sand mould cast paint of the present invention is realized through following technical scheme:
A kind of resin bonded sand mould cast paint; Composed of the following components: graphite powder, zircon sand, mullite powder, spodumene powder, sodium bentonite, alkalescent phenol resin, Ludox, polyvinyl acetate, sodium carboxymethylcellulose, sodium alkyl benzene sulfonate, AEO, water.
Further; The proportioning of each component of resin bonded sand mould cast paint provided by the invention is following: graphite powder 28 ~ 33 weight portions, zircon sand 17 ~ 23 weight portions, mullite powder 28 ~ 33 weight portions, spodumene powder 28 ~ 33 weight portions; Sodium bentonite 1 ~ 3 weight portion; Alkalescent phenol resin 4 ~ 7 weight portions, Ludox 2 ~ 3 weight portions, polyvinyl acetate 4 ~ 7 weight portions, sodium carboxymethylcellulose 0.3 ~ 0.7 weight portion, sodium alkyl benzene sulfonate 0.2 ~ 0.5 weight portion; AEO 0.2 ~ 0.5 weight portion, water 85 ~ 95 weight portions.
In one embodiment of the invention; The proportioning of each component of resin bonded sand mould cast paint is following: graphite powder 28 weight portions, zircon sand 23 weight portions, mullite powder 33 weight portions, spodumene powder 28 weight portions, sodium bentonite 1 weight portion, alkalescent phenol resin 7 weight portions, Ludox 2 weight portions; Polyvinyl acetate 4 weight portions; Sodium carboxymethylcellulose 0.7 weight portion, sodium alkyl benzene sulfonate 0.5 weight portion, AEO 0.5 weight portion, water 85 weight portions.
In another embodiment of the present invention; The proportioning of each component of resin bonded sand mould cast paint is following: graphite powder 33 weight portions, zircon sand 17 weight portions, mullite powder 28 weight portions, spodumene powder 33 weight portions, sodium bentonite 3 weight portions, alkalescent phenol resin 4 weight portions, Ludox 3 weight portions; Polyvinyl acetate 7 weight portions; Sodium carboxymethylcellulose 0.3 weight portion, sodium alkyl benzene sulfonate 0.2 weight portion, AEO 0.2 weight portion, water 95 weight portions.
In another embodiment of the present invention; The proportioning of each component of resin bonded sand mould cast paint is following: graphite powder 31 weight portions, zircon sand 19 weight portions, mullite powder 31 weight portions, spodumene powder 32 weight portions, sodium bentonite 3 weight portions, alkalescent phenol resin 6 weight portions, Ludox 2 weight portions; Polyvinyl acetate 6 weight portions; Sodium carboxymethylcellulose 0.6 weight portion, sodium alkyl benzene sulfonate 0.4 weight portion, AEO 0.4 weight portion, water 92 weight portions.
In another embodiment of the present invention; The proportioning of each component of resin bonded sand mould cast paint is following: graphite powder 30 weight portions, zircon sand 20 weight portions, mullite powder 30 weight portions, spodumene powder 30 weight portions, sodium bentonite 2 weight portions; Alkalescent phenol resin 5 weight portions, Ludox 2.5 weight portions, polyvinyl acetate 5 weight portions, sodium carboxymethylcellulose 0.5 weight portion, sodium alkyl benzene sulfonate 0.3 weight portion; AEO 0.3 weight portion, water 90 weight portions.
Further, in the component of resin bonded sand mould cast paint of the present invention, the granularity of graphite powder is 300 ~ 400M; The granularity of zircon sand is that the granularity of 250 ~ 300M, said mullite powder is 150 ~ 200M; The granularity of spodumene powder is 200 ~ 320M.
A kind of preparation method of resin bonded sand mould cast paint comprises following steps: A. fully stirs into bentonite slurry with sodium bentonite, sodium carboxymethylcellulose, water; B. graphite powder, zircon sand, mullite powder, spodumene powder, alkalescent phenol resin, Ludox, polyvinyl acetate, sodium alkyl benzene sulfonate, AEO, water are added in the said bentonite slurry that rapid A makes, fully mix.
Further, in the said steps A, the weight ratio of sodium bentonite and water is 1:10.
The present invention provides the resin bonded sand mould cast paint, has that suspension is good, intensity is high, coating is even, good leveling property.Oven dry back any surface finish, there is not advantage such as empty, still, flawless.After using resin bonded sand mould cast paint of the present invention, it is very high to water the cast(ing) surface fineness that casts out.
The specific embodiment
Resin bonded sand mould cast paint of the present invention; Composed of the following components: graphite powder, zircon sand, mullite powder, spodumene powder, sodium bentonite, alkalescent phenol resin, Ludox, polyvinyl acetate, sodium carboxymethylcellulose, sodium alkyl benzene sulfonate, AEO, water.
Through embodiment, technical scheme of the present invention is elaborated, but protection scope of the present invention is not limited to said embodiment below.
Embodiment 1
The proportioning of each component of resin bonded sand mould cast paint of the present invention is following: graphite powder 28 weight portions, zircon sand 23 weight portions, mullite powder 33 weight portions, spodumene powder 28 weight portions; Sodium bentonite 1 weight portion; Alkalescent phenol resin 7 weight portions, Ludox 2 weight portions, polyvinyl acetate 4 weight portions, sodium carboxymethylcellulose 0.7 weight portion, sodium alkyl benzene sulfonate 0.5 weight portion; AEO 0.5 weight portion, water 85 weight portions.
Above-mentioned coating prepares according to following steps: A. fully stirs into bentonite slurry with sodium bentonite 1 weight portion, sodium carboxymethylcellulose 0.7 weight portion, water 10 weight portions; B. graphite powder 28 weight portions, zircon sand 23 weight portions, mullite powder 33 weight portions, spodumene powder 28 weight portions, alkalescent phenol resin 7 weight portions, Ludox 2 weight portions, polyvinyl acetate 4 weight portions, sodium alkyl benzene sulfonate 0.5 weight portion, AEO 0.5 weight portion, water 65 weight portions are added in the said bentonite slurry that rapid A makes, make coating after fully mixing.
Wherein, add the proportional quantity of the total amount of entry in said each step, but the amount of the water that in each step, adds respectively can be according to production needs free adjustment for water in the prescription.In steps A, the weight ratio that is preferably sodium bentonite and water is 1:10.
Embodiment 2
The proportioning of each component of resin bonded sand mould cast paint of the present invention is following: graphite powder 33 weight portions, zircon sand 17 weight portions, mullite powder 28 weight portions, spodumene powder 33 weight portions; Sodium bentonite 3 weight portions; Alkalescent phenol resin 4 weight portions, Ludox 3 weight portions, polyvinyl acetate 7 weight portions, sodium carboxymethylcellulose 0.3 weight portion, sodium alkyl benzene sulfonate 0.2 weight portion; AEO 0.2 weight portion, water 95 weight portions.
Prepare resin bonded sand mould cast paint: A. with sodium bentonite 3 weight portions, sodium carboxymethylcellulose 0.3 weight portion, water 28 weight portions according to following steps, the above rotating speed high-speed stirred of 1000rpm became bentonite slurry in 6 hours; B. graphite powder 33 weight portions, zircon sand 17 weight portions, mullite powder 28 weight portions, spodumene powder 33 weight portions, alkalescent phenol resin 4 weight portions, Ludox 3 weight portions, polyvinyl acetate 7 weight portions, sodium alkyl benzene sulfonate 0.2 weight portion, AEO 0.2 weight portion, water 67 weight portions are added in the said bentonite slurry that rapid A makes, make coating after fully mixing.
Wherein, consider for sodium bentonite and water are fully mixed, preferably in steps A with the rotating speed high-speed stirred more than the 1000rpm 6 hours.
Embodiment 3
The proportioning of each component of resin bonded sand mould cast paint of the present invention is following: granularity is graphite powder 31 weight portions of 300 ~ 400M, zircon sand 19 weight portions that granularity is 250 ~ 300M, mullite powder 31 weight portions that granularity is 150 ~ 200M, spodumene powder 32 weight portions that granularity is 200 ~ 320M; Sodium bentonite 3 weight portions; Alkalescent phenol resin 6 weight portions, Ludox 2 weight portions; Polyvinyl acetate 6 weight portions; Sodium carboxymethylcellulose 0.6 weight portion, sodium alkyl benzene sulfonate 0.4 weight portion, AEO 0.4 weight portion, water 92 weight portions.
Prepare resin bonded sand mould cast paint: A. with sodium bentonite 3 weight portions, sodium carboxymethylcellulose 0.6 weight portion, water 30 weight portions according to following steps, fully stir into bentonite slurry; B. granularity is graphite powder 31 weight portions of 300 ~ 400M, zircon sand 19 weight portions that granularity is 250 ~ 300M, granularity is 150 ~ 200M mullite powder 31 weight portions, spodumene powder 32 weight portions, alkalescent phenol resin 6 weight portions, Ludox 2 weight portions, polyvinyl acetate 6 weight portions, sodium alkyl benzene sulfonate 0.4 weight portion, AEO 0.4 weight portion, water 62 weight portions that granularity is 200 ~ 320M are added in the said bentonite slurry that rapid A makes, stir and make coating after fully mixing in 2 hours.
Wherein, excellent more in order to make coating property, the granularity of graphite powder is preferably 300 ~ 400M; The granularity that the granularity of zircon sand is preferably 250 ~ 300M, mullite powder is preferably 150 ~ 200M; The granularity of spodumene powder is preferably 200 ~ 320M.
Mixing time among the step B was preferably more than 2 hours.
Embodiment 4
The proportioning of each component of resin bonded sand mould cast paint of the present invention is following: granularity is graphite powder 30 weight portions of 300 ~ 400M, zircon sand 20 weight portions that granularity is 250 ~ 300M, mullite powder 30 weight portions that granularity is 150 ~ 200M, spodumene powder 30 weight portions, sodium bentonite 2 weight portions, alkalescent phenol resin 5 weight portions, Ludox 2.5 weight portions, polyvinyl acetate 5 weight portions, sodium carboxymethylcellulose 0.5 weight portion, sodium alkyl benzene sulfonate 0.3 weight portion, AEO 0.3 weight portion that granularity is 200 ~ 320M, water 90 weight portions.
Prepare resin bonded sand mould cast paint: A. with sodium bentonite 2 weight portions, sodium carboxymethylcellulose 0.2 weight portion, water 20 weight portions according to following steps, the above rotating speed high-speed stirred of 1000rpm became bentonite slurry in 6 hours; B. granularity is graphite powder 30 weight portions of 300 ~ 400M, zircon sand 20 weight portions that granularity is 250 ~ 300M, granularity is 150 ~ 200M mullite powder 30 weight portions, spodumene powder 30 weight portions, alkalescent phenol resin 5 weight portions, Ludox 2.5 weight portions, polyvinyl acetate 5 weight portions, sodium alkyl benzene sulfonate 0.3 weight portion, AEO 0.3 weight portion, water 70 weight portions that granularity is 200 ~ 320M are added in the said bentonite slurry that rapid A makes, stir and make coating after fully mixing in 3 hours.
Resin bonded sand mould cast paint of the foregoing description 1 ~ 4 and common on the market resin bonded sand mould cast paint are compared the experiment back to be found; The present invention provides the resin bonded sand mould cast paint, and its suspension, intensity, the coating uniformity, levelability obviously are superior to common resin bonded sand mould cast paint.Have any surface finish after the coating oven dry, do not have advantage such as empty, still, flawless.After using resin bonded sand mould cast paint of the present invention, it is very high to water the cast(ing) surface fineness that casts out.
Invention discloses as above with preferred embodiment; Right its is not that any person of ordinary skill in the field is in spirit that does not break away from the present invention and scope in order to qualification the present invention; When can doing a little change and improvement, so the present invention's protection domain is as the criterion when looking the claim person of defining.
Claims (9)
1. resin bonded sand mould cast paint; It is characterized in that, composed of the following components: graphite powder, zircon sand, mullite powder, spodumene powder, sodium bentonite, alkalescent phenol resin, Ludox, polyvinyl acetate, sodium carboxymethylcellulose, sodium alkyl benzene sulfonate, AEO, water.
2. resin bonded sand mould cast paint according to claim 1; It is characterized in that the proportioning of said each component is following: graphite powder 28 ~ 33 weight portions, zircon sand 17 ~ 23 weight portions, mullite powder 28 ~ 33 weight portions, spodumene powder 28 ~ 33 weight portions, sodium bentonite 1 ~ 3 weight portion, alkalescent phenol resin 4 ~ 7 weight portions, Ludox 2 ~ 3 weight portions, polyvinyl acetate 4 ~ 7 weight portions, sodium carboxymethylcellulose 0.3 ~ 0.7 weight portion, sodium alkyl benzene sulfonate 0.2 ~ 0.5 weight portion, AEO 0.2 ~ 0.5 weight portion, water 85 ~ 95 weight portions.
3. resin bonded sand mould cast paint according to claim 2; It is characterized in that the proportioning of said each component is following: graphite powder 28 weight portions, zircon sand 23 weight portions, mullite powder 33 weight portions, spodumene powder 28 weight portions, sodium bentonite 1 weight portion, alkalescent phenol resin 7 weight portions, Ludox 2 weight portions, polyvinyl acetate 4 weight portions, sodium carboxymethylcellulose 0.7 weight portion, sodium alkyl benzene sulfonate 0.5 weight portion, AEO 0.5 weight portion, water 85 weight portions.
4. resin bonded sand mould cast paint according to claim 2; It is characterized in that the proportioning of said each component is following: graphite powder 33 weight portions, zircon sand 17 weight portions, mullite powder 28 weight portions, spodumene powder 33 weight portions, sodium bentonite 3 weight portions, alkalescent phenol resin 4 weight portions, Ludox 3 weight portions, polyvinyl acetate 7 weight portions, sodium carboxymethylcellulose 0.3 weight portion, sodium alkyl benzene sulfonate 0.2 weight portion, AEO 0.2 weight portion, water 95 weight portions.
5. resin bonded sand mould cast paint according to claim 2; It is characterized in that the proportioning of said each component is following: graphite powder 31 weight portions, zircon sand 19 weight portions, mullite powder 31 weight portions, spodumene powder 32 weight portions, sodium bentonite 3 weight portions, alkalescent phenol resin 6 weight portions, Ludox 2 weight portions, polyvinyl acetate 6 weight portions, sodium carboxymethylcellulose 0.6 weight portion, sodium alkyl benzene sulfonate 0.4 weight portion, AEO 0.4 weight portion, water 92 weight portions.
6. resin bonded sand mould cast paint according to claim 2; It is characterized in that; The proportioning of said each component is following: graphite powder 30 weight portions, zircon sand 20 weight portions, mullite powder 30 weight portions, spodumene powder 30 weight portions, sodium bentonite 2 weight portions, alkalescent phenol resin 5 weight portions, Ludox 2.5 weight portions, polyvinyl acetate 5 weight portions, sodium carboxymethylcellulose 0.5 weight portion, sodium alkyl benzene sulfonate 0.3 weight portion, AEO 0.3 weight portion, water 90 weight portions.
7. according to any described resin bonded sand mould cast paint of claim 1 ~ 6, it is characterized in that the granularity of said graphite powder is 300 ~ 400M; The granularity of said zircon sand is that the granularity of 250 ~ 300M, said mullite powder is 150 ~ 200M; The granularity of said spodumene powder is 200 ~ 320M.
8. the preparation method of a resin bonded sand mould cast paint according to claim 1 is characterized in that, comprises following steps:
A. with sodium bentonite, sodium carboxymethylcellulose, water, fully stir into bentonite slurry;
B. graphite powder, zircon sand, mullite powder, spodumene powder, alkalescent phenol resin, Ludox, polyvinyl acetate, sodium alkyl benzene sulfonate, AEO, water are added in the said bentonite slurry that rapid A makes, fully mix.
9. the preparation method of resin bonded sand mould cast paint according to claim 8 is characterized in that, in the said steps A, the weight ratio of sodium bentonite and water is 1:10.
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| CN2012103194847A CN102836952A (en) | 2012-08-31 | 2012-08-31 | Resin sand type casting coating and preparation method thereof |
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| CN2012103194847A CN102836952A (en) | 2012-08-31 | 2012-08-31 | Resin sand type casting coating and preparation method thereof |
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Cited By (12)
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| CN103056287A (en) * | 2013-01-25 | 2013-04-24 | 南京信息工程大学 | Material for cast steel evaporative pattern and preparation method of material |
| CN103551495A (en) * | 2013-10-17 | 2014-02-05 | 湖北三新硅业有限责任公司 | High temperature-resistant de-molding paint as well as preparation method thereof |
| CN103551498A (en) * | 2013-11-13 | 2014-02-05 | 武汉市四友新材料开发有限责任公司 | Sand penetration-preventing alcohol-based foundry coating for resin-bonded sand molds and preparation method thereof |
| CN103611877A (en) * | 2013-11-20 | 2014-03-05 | 江苏江旭铸造集团有限公司 | Coating for casting sand mold |
| CN104117628A (en) * | 2014-07-30 | 2014-10-29 | 吴江市液铸液压件铸造有限公司 | Graphite powder casting coating and preparation method thereof |
| CN104148579A (en) * | 2014-09-03 | 2014-11-19 | 李华山 | Resin sand-produced nodular cast iron paint and preparation method thereof |
| CN104942222A (en) * | 2015-07-03 | 2015-09-30 | 上海市机械制造工艺研究所有限公司 | Protective coating on surface of refractory material |
| CN105344926A (en) * | 2015-10-26 | 2016-02-24 | 无锡市永亿精密铸造有限公司 | Precise casting composite primary layer coating for connecting rod |
| CN107433322A (en) * | 2017-05-24 | 2017-12-05 | 禹州市伟朔机械制造厂 | A kind of cast paint |
| CN108246968A (en) * | 2017-12-29 | 2018-07-06 | 天津宁康科技有限公司 | A kind of formula of the special-purpose water-based dip-coating paint of precoated sand |
| CN110918869A (en) * | 2019-11-14 | 2020-03-27 | 上海金范机械铸造有限公司 | High-temperature-resistant coating for resin sand casting and preparation method thereof |
| CN113333667A (en) * | 2021-06-08 | 2021-09-03 | 安徽信息工程学院 | Composition for casting material and preparation method thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056287B (en) * | 2013-01-25 | 2014-11-26 | 南京信息工程大学 | Material for cast steel evaporative pattern and preparation method of material |
| CN103056287A (en) * | 2013-01-25 | 2013-04-24 | 南京信息工程大学 | Material for cast steel evaporative pattern and preparation method of material |
| CN103551495B (en) * | 2013-10-17 | 2015-10-28 | 湖北三新硅业有限责任公司 | A kind of high temperature resistant mould wash and preparation method thereof |
| CN103551495A (en) * | 2013-10-17 | 2014-02-05 | 湖北三新硅业有限责任公司 | High temperature-resistant de-molding paint as well as preparation method thereof |
| CN103551498A (en) * | 2013-11-13 | 2014-02-05 | 武汉市四友新材料开发有限责任公司 | Sand penetration-preventing alcohol-based foundry coating for resin-bonded sand molds and preparation method thereof |
| CN103551498B (en) * | 2013-11-13 | 2015-09-23 | 武汉市四友新材料开发有限责任公司 | Resin bonded sand mould penetration-prevention alcohol-base foundry coating and preparation method thereof |
| CN103611877A (en) * | 2013-11-20 | 2014-03-05 | 江苏江旭铸造集团有限公司 | Coating for casting sand mold |
| CN104117628A (en) * | 2014-07-30 | 2014-10-29 | 吴江市液铸液压件铸造有限公司 | Graphite powder casting coating and preparation method thereof |
| CN104148579A (en) * | 2014-09-03 | 2014-11-19 | 李华山 | Resin sand-produced nodular cast iron paint and preparation method thereof |
| CN104942222A (en) * | 2015-07-03 | 2015-09-30 | 上海市机械制造工艺研究所有限公司 | Protective coating on surface of refractory material |
| CN105344926A (en) * | 2015-10-26 | 2016-02-24 | 无锡市永亿精密铸造有限公司 | Precise casting composite primary layer coating for connecting rod |
| CN107433322A (en) * | 2017-05-24 | 2017-12-05 | 禹州市伟朔机械制造厂 | A kind of cast paint |
| CN108246968A (en) * | 2017-12-29 | 2018-07-06 | 天津宁康科技有限公司 | A kind of formula of the special-purpose water-based dip-coating paint of precoated sand |
| CN110918869A (en) * | 2019-11-14 | 2020-03-27 | 上海金范机械铸造有限公司 | High-temperature-resistant coating for resin sand casting and preparation method thereof |
| CN110918869B (en) * | 2019-11-14 | 2020-11-20 | 上海金范机械铸造有限公司 | High-temperature-resistant coating for resin sand casting and preparation method thereof |
| CN113333667A (en) * | 2021-06-08 | 2021-09-03 | 安徽信息工程学院 | Composition for casting material and preparation method thereof |
| CN113333667B (en) * | 2021-06-08 | 2022-08-23 | 安徽信息工程学院 | Composition for casting material and preparation method thereof |
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Application publication date: 20121226 |