CN104117628A - Graphite powder casting coating and preparation method thereof - Google Patents
Graphite powder casting coating and preparation method thereof Download PDFInfo
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- CN104117628A CN104117628A CN201410366965.2A CN201410366965A CN104117628A CN 104117628 A CN104117628 A CN 104117628A CN 201410366965 A CN201410366965 A CN 201410366965A CN 104117628 A CN104117628 A CN 104117628A
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Abstract
The invention discloses a graphite powder casting coating which is prepared from the following raw materials: graphite powder, kieselguhr, sodium dodecyl sulfate, titanium dioxide, a binding agent, acrylic resin, octadecanamide and ethanol. The preparation method of the graphite powder casting coating comprises the following steps: performing ball-milling on graphite powder, titanium dioxide, kieselguhr and sodium dodecyl sulfate in a ball mill, stirring the crushed material, the binding agent, the acrylic resin and octadecanamide in a stirring machine, finally slowly adding ethanol, and sufficiently stirring, thereby obtaining the graphite powder casting coating. The graphite powder casting coating disclosed by the invention is good in insulating effect, the components act synergistically, and the adhesion of the coating is improved, so that the sand adhering phenomenon of a cast piece is prevented; an experiment proves that the suspension property of the coating is the best when the weight ratio of octadecanamide to ethanol is 1 to 2, and the coating is prepared from easily available raw materials, is non-toxic and green, and is particularly applicable to casting of carbon steel.
Description
Technical field
The present invention relates to a kind of graphite powder cast paint and preparation method thereof, belong to foundary industry technical field.
Background technology
The coating that sand casting is used, mainly for interacting between shielding sand mold and metal liquid, under cast temperature, form density fireproof coating, placing metal liquid penetrates in sand mold, simultaneously because the material of sand mold at high temperature decomposes generation gas, coating can prevent from entering molten metal body weight, affects the surface smoothness of foundry goods.Conventional is cold coating at present, because be suspension liquid, and suspension is low, does not stop to stir and could brush evenly, otherwise can not form fine and close coating when use.
Application number is that 201310447720.8 " a kind of graphite cast paints " disclose a kind of graphite cast paint, coating includes following material by weight: propenyl 20-25 part, methyl alcohol 20-24 part, methacrylate 4-5 part, soil dress graphite 20-22 part, crystalline flake graphite 2-5 part, silica flour 20-25 part, lithium bentonite 1-2 part, polyvinyl butyral resin 0.5-1 part, AEO 0.05-0.08 part, resin 1-2 part.This coatings chemistry good stability and reduced the occurrence rate of scour trough in production process, but anti-stick grittiness is bad, can cause foundry goods scab.
Summary of the invention
The object of the present invention is to provide a kind of heat-resisting precoated sand and preparation method thereof.
The present invention is achieved through the following technical solutions:
A kind of graphite powder cast paint, raw material by following parts by weight is made: graphite powder 40-50 part, diatomite 10-15 part, lauryl sodium sulfate 6-9 part, titanium dioxide 2-5 part, binding agent 2-6 part, acrylic resin 5-10 part, stearmide 10-15 part and ethanol 20-30 part, wherein graphite powder and titanium dioxide are crossed 200 mesh sieves, and the weight ratio of described stearmide and ethanol is 1:2.
Described a kind of graphite powder cast paint, in described diatomite, the content of silica is greater than 90%, and the content of iron oxide is 1-1.5%.
Described a kind of graphite powder cast paint, described binding agent is one or more in epoxy resin, phenolic resins, vegetable oil or polyimides.
Described a kind of graphite powder cast paint, is made up of the raw material of following parts by weight: 24 parts of 46 parts of graphite powders, 13 parts, diatomite, 8 parts of lauryl sodium sulfate, 3 parts of titanium dioxide, 5 parts of polyimides, 8 parts of acrylic resins, 12 parts of stearmides and ethanol.
The preparation method of described a kind of graphite powder cast paint, graphite powder and titanium dioxide, diatomite and the lauryl sodium sulfate of crossing 200 mesh sieves are proportionally placed in to ball mill dry ball milling 2-3h, wherein, material ball ratio is 1:3-5, the material obtaining after pulverizing is placed in mixer with binding agent, acrylic resin and is fully uniformly mixed together with stearmide, finally slowly add ethanol, after fully stirring, obtain graphite powder cast paint.Wherein, the speed of mixer is 90-120 rev/min.
The beneficial effect that the present invention reaches:
Graphite powder cast paint of the present invention is taking graphite powder as primary raw material, good heat-insulation effect, has added diatomite, lauryl sodium sulfate, titanium dioxide, binding agent, acrylic resin and stearmide, each composition synergy, improve the adhesive force of coating, thereby prevent the scab phenomenon of foundry goods, through evidence, when the weight ratio of stearmide and ethanol is 1:2, the suspendability of coating is best, coating raw material of the present invention source is abundant, and nontoxic environmental protection, is particularly useful for the casting of carbon steel.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
Embodiment 1
In the present embodiment, a kind of graphite powder cast paint, raw material by following parts by weight is made: 24 parts of 46 parts of graphite powders, 13 parts, diatomite, 8 parts of lauryl sodium sulfate, 3 parts of titanium dioxide, 5 parts of polyimides, 8 parts of acrylic resins, 12 parts of stearmides and ethanol, wherein, graphite powder and titanium dioxide are crossed 200 mesh sieves; In described diatomite, the content of silica is greater than 90%, and the content of iron oxide is 1-1.5%.
The preparation method of described a kind of graphite powder cast paint, graphite powder and titanium dioxide, diatomite and the lauryl sodium sulfate of crossing 200 mesh sieves are proportionally placed in to ball mill dry ball milling 3h, wherein, material ball ratio is 1:3, the material obtaining after pulverizing is placed in mixer with polyimides, acrylic resin and is fully uniformly mixed together with stearmide, finally slowly add ethanol, after fully stirring, obtain graphite powder cast paint.Wherein, the speed of mixer is 120 revs/min.
Embodiment 2
In the present embodiment, a kind of graphite powder cast paint, raw material by following parts by weight is made: 20 parts of 40 parts of graphite powders, 15 parts, diatomite, 6 parts of lauryl sodium sulfate, 5 parts of titanium dioxide, epoxy resin and 2 parts, phenolic resins, 10 parts of acrylic resins, 10 parts of stearmides and ethanol, wherein, the weight ratio of epoxy resin and phenolic resins is 1:1, graphite powder and titanium dioxide are crossed 200 mesh sieves, and in described diatomite, the content of silica is greater than 90%, and the content of iron oxide is 1-1.5%.
The preparation method of described a kind of graphite powder cast paint, graphite powder and titanium dioxide, diatomite and the lauryl sodium sulfate of crossing 200 mesh sieves are proportionally placed in to ball mill dry ball milling 2h, wherein, material ball ratio is 1:5, the material obtaining after pulverizing is placed in mixer with epoxy resin, phenolic resins, acrylic resin and is fully uniformly mixed together with stearmide, finally slowly add ethanol, after fully stirring, obtain graphite powder cast paint.Wherein, the speed of mixer is 90 revs/min.
Embodiment 3
In the present embodiment, a kind of graphite powder cast paint, raw material by following parts by weight is made: 30 parts of 50 parts of graphite powders, 10 parts, diatomite, 9 parts of lauryl sodium sulfate, 2 parts of titanium dioxide, 6 parts of vegetable oil, 5 parts of acrylic resins, 15 parts of stearmides and ethanol, wherein graphite powder and titanium dioxide are crossed 200 mesh sieves, in described diatomite, the content of silica is greater than 90%, and the content of iron oxide is 1-1.5%.
The preparation method of described a kind of graphite powder cast paint, graphite powder and titanium dioxide, diatomite and the lauryl sodium sulfate of crossing 200 mesh sieves are proportionally placed in to ball mill dry ball milling 3h, wherein, material ball ratio is 1:4, the material obtaining after pulverizing is placed in mixer with vegetable oil, acrylic resin and is fully uniformly mixed together with stearmide, finally slowly add ethanol, after fully stirring, obtain graphite powder cast paint.Wherein, the speed of mixer is 100 revs/min.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. a graphite powder cast paint, it is characterized in that, raw material by following parts by weight is made: graphite powder 40-50 part, diatomite 10-15 part, lauryl sodium sulfate 6-9 part, titanium dioxide 2-5 part, binding agent 2-6 part, acrylic resin 5-10 part, stearmide 10-15 part and ethanol 20-30 part, wherein graphite powder and titanium dioxide are crossed 200 mesh sieves, and the weight ratio of described stearmide and ethanol is 1:2.
2. a kind of graphite powder cast paint according to claim 1, is characterized in that, in described diatomite, the content of silica is greater than 90%, and the content of iron oxide is 1-1.5%.
3. a kind of graphite powder cast paint according to claim 1, is characterized in that, described binding agent is one or more in epoxy resin, phenolic resins, vegetable oil or polyimides.
4. according to a kind of graphite powder cast paint described in claim 1 or 3, it is characterized in that, made by the raw material of following parts by weight: 24 parts of 46 parts of graphite powders, 13 parts, diatomite, 8 parts of lauryl sodium sulfate, 3 parts of titanium dioxide, 5 parts of polyimides, 8 parts of acrylic resins, 12 parts of stearmides and ethanol.
5. the preparation method of a kind of graphite powder cast paint according to claim 1, it is characterized in that, graphite powder and titanium dioxide, diatomite and the lauryl sodium sulfate of crossing 200 mesh sieves are proportionally placed in to ball mill dry ball milling 2-3h, wherein, material ball ratio is 1:3-5, the material obtaining after pulverizing is placed in mixer with binding agent, acrylic resin and is fully uniformly mixed together with stearmide, finally slowly adds ethanol, after fully stirring, obtains graphite powder cast paint.
6. the preparation method of a kind of graphite powder cast paint according to claim 5, is characterized in that, the speed of mixer is 90-120 rev/min.
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| CN201410366965.2A CN104117628B (en) | 2014-07-30 | 2014-07-30 | A kind of graphite powder cast paint and preparation method thereof |
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| CN201410366965.2A CN104117628B (en) | 2014-07-30 | 2014-07-30 | A kind of graphite powder cast paint and preparation method thereof |
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| CN104117628B CN104117628B (en) | 2016-04-27 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801662A (en) * | 2015-05-12 | 2015-07-29 | 芜湖市容川机电科技有限公司 | Graphite-powder casting coating |
| CN104959530A (en) * | 2015-06-18 | 2015-10-07 | 和县科嘉阀门铸造有限公司 | Nano titanium dioxide improved pasty demolding agent for valve casting |
| CN107414018A (en) * | 2017-08-25 | 2017-12-01 | 南通德诺尔石墨设备有限公司 | A kind of expansible graphite alcohol-base foundry coating |
| CN107433323A (en) * | 2017-08-25 | 2017-12-05 | 南通德诺尔石墨设备有限公司 | A kind of graphite cast paint |
| CN107433322A (en) * | 2017-05-24 | 2017-12-05 | 禹州市伟朔机械制造厂 | A kind of cast paint |
| CN107470550A (en) * | 2017-08-25 | 2017-12-15 | 南通德诺尔石墨设备有限公司 | A kind of graphite cast paint |
| CN107486539A (en) * | 2017-08-25 | 2017-12-19 | 南通德诺尔石墨设备有限公司 | A kind of expansible graphite alcohol-base foundry coating |
| CN107486538A (en) * | 2017-08-25 | 2017-12-19 | 南通德诺尔石墨设备有限公司 | A kind of expansible graphite alcohol-base foundry coating |
| CN107584070A (en) * | 2017-08-25 | 2018-01-16 | 南通德诺尔石墨设备有限公司 | A kind of graphite cast paint |
| CN107695287A (en) * | 2017-08-25 | 2018-02-16 | 南通德诺尔石墨设备有限公司 | A kind of expansible graphite alcohol-base foundry coating |
| CN107695288A (en) * | 2017-08-25 | 2018-02-16 | 南通德诺尔石墨设备有限公司 | A kind of graphite cast paint |
| CN108160928A (en) * | 2018-01-02 | 2018-06-15 | 湖南精量重工科技有限公司 | A kind of resin sand core manufacturing craft |
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| JPS59232648A (en) * | 1983-06-13 | 1984-12-27 | Honda Motor Co Ltd | Mold coating material for forging molten metal |
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| CN101941048A (en) * | 2010-09-03 | 2011-01-12 | 吴江市液铸液压件铸造有限公司 | Graphite paste coating |
| CN102836952A (en) * | 2012-08-31 | 2012-12-26 | 太仓科博尔精密铸业有限公司 | Resin sand type casting coating and preparation method thereof |
| CN103521697A (en) * | 2013-09-27 | 2014-01-22 | 无锡阳工机械制造有限公司 | Graphite casting coating |
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| JPS59232648A (en) * | 1983-06-13 | 1984-12-27 | Honda Motor Co Ltd | Mold coating material for forging molten metal |
| CN101195146A (en) * | 2007-12-19 | 2008-06-11 | 济南圣泉集团股份有限公司 | Coal ash casting paint |
| CN101941048A (en) * | 2010-09-03 | 2011-01-12 | 吴江市液铸液压件铸造有限公司 | Graphite paste coating |
| CN102836952A (en) * | 2012-08-31 | 2012-12-26 | 太仓科博尔精密铸业有限公司 | Resin sand type casting coating and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801662A (en) * | 2015-05-12 | 2015-07-29 | 芜湖市容川机电科技有限公司 | Graphite-powder casting coating |
| CN104959530A (en) * | 2015-06-18 | 2015-10-07 | 和县科嘉阀门铸造有限公司 | Nano titanium dioxide improved pasty demolding agent for valve casting |
| CN107433322A (en) * | 2017-05-24 | 2017-12-05 | 禹州市伟朔机械制造厂 | A kind of cast paint |
| CN107414018A (en) * | 2017-08-25 | 2017-12-01 | 南通德诺尔石墨设备有限公司 | A kind of expansible graphite alcohol-base foundry coating |
| CN107433323A (en) * | 2017-08-25 | 2017-12-05 | 南通德诺尔石墨设备有限公司 | A kind of graphite cast paint |
| CN107470550A (en) * | 2017-08-25 | 2017-12-15 | 南通德诺尔石墨设备有限公司 | A kind of graphite cast paint |
| CN107486539A (en) * | 2017-08-25 | 2017-12-19 | 南通德诺尔石墨设备有限公司 | A kind of expansible graphite alcohol-base foundry coating |
| CN107486538A (en) * | 2017-08-25 | 2017-12-19 | 南通德诺尔石墨设备有限公司 | A kind of expansible graphite alcohol-base foundry coating |
| CN107584070A (en) * | 2017-08-25 | 2018-01-16 | 南通德诺尔石墨设备有限公司 | A kind of graphite cast paint |
| CN107695287A (en) * | 2017-08-25 | 2018-02-16 | 南通德诺尔石墨设备有限公司 | A kind of expansible graphite alcohol-base foundry coating |
| CN107695288A (en) * | 2017-08-25 | 2018-02-16 | 南通德诺尔石墨设备有限公司 | A kind of graphite cast paint |
| CN108160928A (en) * | 2018-01-02 | 2018-06-15 | 湖南精量重工科技有限公司 | A kind of resin sand core manufacturing craft |
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|---|---|
| CN104117628B (en) | 2016-04-27 |
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