CN103252445A - Coating for die cavity surface - Google Patents
Coating for die cavity surface Download PDFInfo
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- CN103252445A CN103252445A CN2013101462234A CN201310146223A CN103252445A CN 103252445 A CN103252445 A CN 103252445A CN 2013101462234 A CN2013101462234 A CN 2013101462234A CN 201310146223 A CN201310146223 A CN 201310146223A CN 103252445 A CN103252445 A CN 103252445A
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Abstract
The invention provides a coating for a die cavity surface. The coating comprises the following components according to parts by weight: 55-80 parts of refractory powder, 5-10 parts of carrier liquid, 5-10 parts of a suspending agent and 10-15 parts of a caking agent. The coating is characterized in that 2-6 parts of a defoaming agent is further contained in the components; the defoaming agent comprises the following components according to parts by weight: 70-80 parts of methyl silicon hydrogen alkane oil, 5-15 parts of sodium tripolyphosphate, 5-15 parts of stearate, and 3-8 parts of silicon dioxide. The coating is coated on the die cavity surface, and can defoam rapidly under high temperature and high pressure; and the foam is inhibited lastingly, and coating is high in stability, small in using amount and high in efficiency, so that bad influence of casts caused by bubbles is greatly reduced, and simultaneously the coasting is easy to prepare and is universally applicable.
Description
Technical field
The present invention relates to a kind of coating, relate in particular to a kind of ointment shape coating, specifically be applied to the ointment shape coating of foundry goods mold cavity surface.
Background technology
Molten iron when cast casting mold produces a large amount of gases under the high temperature action of liquid metal, gas accumulate in cast(ing) surface, subcutaneous and inner and form empty, thereby cause bubble, the hole wall of bubble is smooth, no certain shape, size and position.Bubble is one of defective of Foundry Production medium casting.In the waste product of foundry goods, according to statistics, because the casting wasted product that bubble causes accounts for about 1/3rd of waste product sum.
Prevent in the prior art that the measure of invading bubble from having: improve the degree of packing of gas permeability, the control sand mold of sand mold and core, speed that control gas produces, suitably improve pouring temperature etc., the employing of these measures greatly reduces the fraction defective that pore brings really, but the technology controlling and process of these measures is complicated, can not be suitable at all foundry goods.
Summary of the invention
At above-mentioned defective of the prior art, the invention provides a kind of coating for mold cavity surface.Adopt coating of the present invention to be applied in mold cavity surface, can reduce bad that blow hold brings greatly, simultaneously technology controlling and process simple, be applicable to all foundry goods.
For achieving the above object, technical scheme provided by the invention is: a kind of coating for mold cavity surface, the constituent of described coating and weight portion ratio thereof are: refractory powder 55-80, carrier fluid 5-10, suspending agent 5-10, bonding agent 10-15, it is characterized in that: also have defoamer 2-6 in its constituent, the constituent of described defoamer and weight portion ratio thereof are: methyl silicon hydrogen alkane oil 70-80, sodium phosphate trimer 5-15, stearate 5-15, silica 3-8.
Preferably, the constituent of described coating and weight portion ratio thereof are: refractory powder 60-75, carrier fluid 6-9, suspending agent 6-9. bonding agent 11-14, defoamer 3-5.
Preferably, the constituent of described defoamer and weight portion ratio thereof are: methyl silicon hydrogen alkane oil 72-78, sodium phosphate trimer 6-10, stearate 6-10, silica 4-7.
Preferably, described refractory powder be schmigel, bauxite powder, chromite powder, silica flour one of them.
Preferably, described suspending agent be organobentonite, lithium bentonite, sodium bentonite, modification rectorite, polyvinyl butyral resin one of them.
Preferably, described coating is the ointment shape.
Compared with prior art, beneficial effect of the present invention is:
1, constituent and the weight portion ratio thereof of a kind of coating for mold cavity surface of the present invention are: refractory powder 55-80, carrier fluid 5-10, suspending agent 5-10, bonding agent 10-15, it is characterized in that: also have defoamer 2-6 in its constituent, and defoamer constituent and weight portion ratio thereof are: methyl silicon hydrogen alkane oil 70-80, sodium phosphate trimer 5-15, stearate 5-15, silica 3-8.The defoamer that adds the certain mass ratio in this coating, silicon dioxide granule was taken to the air-water interface of foam and enters air bubble liquid-membrane by silicone oil after methyl silicon hydrogen alkane oil and silica mixed in this defoamer, because its hydrophobicity, with the contact angle of surfactant foaming drop greater than 90 °, thereby force foaming liquid to arrange from the solid hydrophobic particle surface, cause the local discharge opeing rapidly of foam and cause breaking, the rapid froth breaking of coating of the present invention energy under HTHP, the lasting bubble that presses down, good stability, consumption is few, the efficient height, so the present invention can reduce greatly because of bubble bring bad.
2, a kind of coating for mold cavity surface provided by the invention, in constituent and weight portion ratio thereof be: refractory powder 55-80, carrier fluid 5-10, suspending agent 5-10, bonding agent 10-15, defoamer 2-6 seals up for safekeeping stand-byly after the mixed preparing, during Foundry Production coating is applied in mold cavity surface and gets final product, preparation is simple, be suitable for all foundry goods, so technology of the present invention is simple, generally is suitable for.
The specific embodiment
Below in conjunction with the specific embodiment invention is described in further detail
A kind of coating for mold cavity surface, the constituent of described coating and weight portion ratio thereof are: refractory powder 55-80, carrier fluid 5-10, suspending agent 5-10, bonding agent 10-15.
Preferred coating also comprises defoamer, and this defoamer weight portion ratio is: 2-6.
Constituent and the weight portion ratio thereof of preferred defoamer are: methyl silicon hydrogen alkane oil 70-80, sodium phosphate trimer 5-15, stearate 5-15, silica 3-8.
Constituent and the weight portion ratio thereof of preferred coating are: refractory powder 60-75, carrier fluid 6-9, suspending agent 6-9, bonding agent 11-14, defoamer 3-5.
Constituent and the weight portion ratio thereof of preferred defoamer are: methyl silicon hydrogen alkane oil 72-78, sodium phosphate trimer 6-10, stearate 6-10, silica 4-7.
Preferred refractory powder be schmigel, bauxite powder, chromite powder, silica flour one of them.
Preferred suspending agent be organobentonite, lithium bentonite, sodium bentonite, modification rectorite, polyvinyl butyral resin one of them.
Preferred coating is ointment shape coating.
Embodiment 1:
A kind of coating for mold cavity surface, its constituent and weight portion ratio thereof are: refractory powder 65, carrier fluid 7, suspending agent 7, bonding agent 12, defoamer 3.5, wherein the constituent of defoamer and weight portion ratio thereof are methyl silicon hydrogen alkane oil 74, sodium phosphate trimer 7.5, stearate 7.5, silica 5.Refractory powder be schmigel, bauxite powder, chromite powder, silica flour one of them; Suspending agent be machine bentonite, lithium bentonite, sodium bentonite, modification rectorite, polyvinyl butyral resin one of them; Coating is ointment shape coating.
Embodiment 2:
A kind of coating for mold cavity surface, its constituent and weight portion ratio thereof are: refractory powder 70, carrier fluid 8, suspending agent 8, bonding agent 13, defoamer 4.5, wherein the constituent of defoamer and weight portion ratio thereof are methyl silicon hydrogen alkane oil 76, sodium phosphate trimer 8.5, stearate 8.5, silica 6.Refractory powder be schmigel, bauxite powder, chromite powder, silica flour one of them; Suspending agent be machine bentonite, lithium bentonite, sodium bentonite, modification rectorite, polyvinyl butyral resin one of them; Coating is ointment shape coating.
This shows that coating of the present invention preparation is simple, generally is suitable for, reduce greatly because of bubble bring bad.
The above only is preferred embodiments of the present invention; protection scope of the present invention is not limited with above-mentioned embodiment; any those skilled in the art of being familiar with according to disclosed content do etc. little modification or variation, all should include in the protection domain of record of claims.
Claims (6)
1. coating that is used for mold cavity surface, the constituent of described coating and weight portion ratio thereof are: refractory powder 55-80, carrier fluid 5-10, suspending agent 5-10, bonding agent 10-15 is characterized in that: also having the weight portion ratio in its constituent is the defoamer of 2-6, the constituent of described defoamer and weight portion ratio thereof are: methyl silicon hydrogen alkane oil 70-80, sodium phosphate trimer 5-15, stearate 5-15, silica 3-8.
2. a kind of coating for mold cavity surface according to claim 1, it is characterized in that: the constituent of described coating and weight portion ratio thereof are preferably: refractory powder 60-75, carrier fluid 6-9, suspending agent 6-9. bonding agent 11-14, defoamer 3-5.
3. a kind of coating for mold cavity surface according to claim 2, it is characterized in that: the constituent of described defoamer and weight portion ratio thereof are preferably: methyl silicon hydrogen alkane oil 72-78, sodium phosphate trimer 6-10, stearate 6-10, silica 4-7.
4. a kind of coating for mold cavity surface according to claim 1 is characterized in that: described refractory powder is a kind of in schmigel, bauxite powder, chromite powder, the silica flour.
5. a kind of coating for mold cavity surface according to claim 1 is characterized in that: described suspending agent is a kind of in organobentonite, lithium bentonite, sodium bentonite, modification rectorite, the polyvinyl butyral resin.
6. a kind of coating for mold cavity surface according to claim 1, it is characterized in that: described coating is the ointment shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146223.4A CN103252445B (en) | 2013-04-25 | 2013-04-25 | Coating for die cavity surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146223.4A CN103252445B (en) | 2013-04-25 | 2013-04-25 | Coating for die cavity surface |
Publications (2)
| Publication Number | Publication Date |
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| CN103252445A true CN103252445A (en) | 2013-08-21 |
| CN103252445B CN103252445B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310146223.4A Active CN103252445B (en) | 2013-04-25 | 2013-04-25 | Coating for die cavity surface |
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| CN (1) | CN103252445B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588572A (en) * | 2014-12-30 | 2015-05-06 | 河南省中原内配股份有限公司 | Coating for centrifugal casting and preparation method |
| CN106111948A (en) * | 2016-07-28 | 2016-11-16 | 周传禄 | Casting double-sided composite plate/compound casting and production method thereof |
| CN106111947A (en) * | 2016-07-28 | 2016-11-16 | 周传禄 | Casting one side composite plate/compound casting and production method thereof |
| CN106669237A (en) * | 2016-12-14 | 2017-05-17 | 东至绿洲环保化工有限公司 | Organic silicon defoamer containing sodium tripolyphosphate |
| CN107537970A (en) * | 2016-09-28 | 2018-01-05 | 湖北工业大学 | A kind of powdery cast paint and its preparation and application method |
| CN107774891A (en) * | 2017-09-08 | 2018-03-09 | 霍山县东胜铸造材料有限公司 | A kind of coating for improving spheroidal graphite casting mechanical property |
| CN107855462A (en) * | 2017-12-08 | 2018-03-30 | 安徽恒升铸业有限公司 | A kind of water-glass sand coating |
| CN108453214A (en) * | 2018-02-12 | 2018-08-28 | 陕西盛华冶化有限公司 | A kind of saggar demoulding backing material formula and its application method |
Citations (4)
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| CN1082466A (en) * | 1993-02-15 | 1994-02-23 | 大连冷冻机厂 | Resin sand mould (core) or cast part type (core) is used water based paint |
| CN101497105A (en) * | 2009-03-12 | 2009-08-05 | 深圳市景鼎现代科技有限公司 | Cast form water borne coating and technique for preparing the same |
| CN101708528A (en) * | 2009-12-21 | 2010-05-19 | 上海市机械制造工艺研究所有限公司 | Energy-saving type water group lost mould casting paint |
| CN102371335A (en) * | 2011-10-11 | 2012-03-14 | 许立新 | Preparation method of casting alcohol-based coating |
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2013
- 2013-04-25 CN CN201310146223.4A patent/CN103252445B/en active Active
Patent Citations (4)
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| CN1082466A (en) * | 1993-02-15 | 1994-02-23 | 大连冷冻机厂 | Resin sand mould (core) or cast part type (core) is used water based paint |
| CN101497105A (en) * | 2009-03-12 | 2009-08-05 | 深圳市景鼎现代科技有限公司 | Cast form water borne coating and technique for preparing the same |
| CN101708528A (en) * | 2009-12-21 | 2010-05-19 | 上海市机械制造工艺研究所有限公司 | Energy-saving type water group lost mould casting paint |
| CN102371335A (en) * | 2011-10-11 | 2012-03-14 | 许立新 | Preparation method of casting alcohol-based coating |
Non-Patent Citations (1)
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| 刘明华: "《水煤浆添加剂的制备及应用》", 31 January 2007, 化学工业出版社 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588572A (en) * | 2014-12-30 | 2015-05-06 | 河南省中原内配股份有限公司 | Coating for centrifugal casting and preparation method |
| CN106111948A (en) * | 2016-07-28 | 2016-11-16 | 周传禄 | Casting double-sided composite plate/compound casting and production method thereof |
| CN106111947A (en) * | 2016-07-28 | 2016-11-16 | 周传禄 | Casting one side composite plate/compound casting and production method thereof |
| CN106111947B (en) * | 2016-07-28 | 2018-06-08 | 莱芜市天铭冶金设备有限公司 | Cast single side composite plate/compound casting and its production method |
| CN106111948B (en) * | 2016-07-28 | 2018-06-08 | 莱芜市天铭冶金设备有限公司 | Cast double-sided composite plate/compound casting and its production method |
| CN107537970A (en) * | 2016-09-28 | 2018-01-05 | 湖北工业大学 | A kind of powdery cast paint and its preparation and application method |
| CN107537970B (en) * | 2016-09-28 | 2018-11-13 | 湖北工业大学 | A kind of powdery cast paint and its preparation and application method |
| CN106669237A (en) * | 2016-12-14 | 2017-05-17 | 东至绿洲环保化工有限公司 | Organic silicon defoamer containing sodium tripolyphosphate |
| CN107774891A (en) * | 2017-09-08 | 2018-03-09 | 霍山县东胜铸造材料有限公司 | A kind of coating for improving spheroidal graphite casting mechanical property |
| CN107855462A (en) * | 2017-12-08 | 2018-03-30 | 安徽恒升铸业有限公司 | A kind of water-glass sand coating |
| CN108453214A (en) * | 2018-02-12 | 2018-08-28 | 陕西盛华冶化有限公司 | A kind of saggar demoulding backing material formula and its application method |
| CN108453214B (en) * | 2018-02-12 | 2019-12-13 | 陕西盛华冶化有限公司 | Formulation of bottom material for demoulding container and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103252445B (en) | 2015-07-01 |
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