CN101941048A - Graphite paste coating - Google Patents
Graphite paste coating Download PDFInfo
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- CN101941048A CN101941048A CN 201010271283 CN201010271283A CN101941048A CN 101941048 A CN101941048 A CN 101941048A CN 201010271283 CN201010271283 CN 201010271283 CN 201010271283 A CN201010271283 A CN 201010271283A CN 101941048 A CN101941048 A CN 101941048A
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- coating
- oildag
- sodium carboxymethylcellulose
- paste coating
- water
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Abstract
The invention discloses a graphite paste coating. The graphite paste coating comprises the following components in part by weight: 90 to 110 parts of graphite powder, 2 to 6 parts of activated bentonite, 0.1 to 0.5 part of sodium carboxymethylcellulose mixture, and the balance of water. The graphite paste coating also comprises liquid epoxy resin, and the liquid epoxy resin accounts for 2 to 5 mass percent of the graphite paste coating. The sodium carboxymethylcellulose mixture comprises the following components in part by weight: 3 to 5 parts of sodium carboxymethylcellulose and 100 parts of water. The graphite paste coating is of soft paste, and the viscosity of the graphite paste coating is 14 to 16. The graphite paste coating has the advantages of simple component, simple preparation operation, easy mixing uniformity and strong adhesiveness.
Description
Technical field
The present invention relates to a kind of coating, relate in particular to a kind of oildag coating, specifically be applicable to the smearing of surfaces externally and internally of foundry sand type.
Background technology
Fast development along with foundry industry, requirement to the casting workpiece surface quality is more and more higher, requirement to the sand mold surface coating also strengthens thereupon, generally all necessarily require quality homogeneous, good, the water-fast hear resistance of caking property strong, and stable in properties under normal temperature and high pressure, be easy to brushing, when casting, can reach defectives such as preventing scab, burning into sand, thereby obtain the foundry goods of any surface finish.
The Chinese patent publication number is CN1082466A, it is refractory powder with graphite powder, zirconium English powder, high-alumina fly, titanium slag powder etc. that the patent of invention that open day is on February 23rd, 1994 discloses a kind of, bentonite, Ludox, calgon, CMC, kaolin are suspending agent and binding agent, and the water based paint that is mixed with of di-iron trioxide, chaff alcohol and water, its rheological characteristic, suspension, gas-forming property, anti-cracking behavior, high-temperature stability are all good after testing.Though should invention in casting is used, coating has higher-strength, hand is touched, ash is not all fallen in air-blowing, its inside and outside sur-face peeling is effective behind the casting falling sand, its composition is too complicated, formulation operations is loaded down with trivial details, and is difficult for mixing, cohesive a little less than.
Summary of the invention
The defective and the problem of the objective of the invention is to overcome that the composition that exists in the prior art is too complicated, formulation operations is loaded down with trivial details, be difficult for mixing, cohesive is more weak, the oildag coating that provide that a kind of composition is simple, formulation operations is simple and easy, easily mix, cohesive is stronger.
For realizing above purpose, technical solution of the present invention is: a kind of oildag coating, and its constituent and weight portion ratio thereof are: graphite powder 90-110, activated bentonite 2-6, sodium carboxymethylcellulose mixture 0.1-0.5, all the other are water.
The constituent of described oildag coating and weight portion ratio thereof are: graphite powder 100, and activated bentonite 3-4, sodium carboxymethylcellulose mixture 0.2-0.3, all the other are water.
Also comprise a kind of liquid-state epoxy resin in the described oildag coating, the mass percent that this liquid-state epoxy resin accounts for oildag coating is 2-5%.
The constituent of described sodium carboxymethylcellulose mixture and weight portion ratio thereof are: sodium carboxymethylcellulose 3-5, water 100.
Described oildag coating is the ointment shape, and its viscosity is 14-16.
Compared with prior art, beneficial effect of the present invention is:
1, owing to constituent and weight portion ratio thereof in a kind of oildag coating of the present invention are: graphite powder 90-110, activated bentonite 2-6, sodium carboxymethylcellulose mixture 0.1-0.5, all the other are water, and main raw material(s) has only three kinds, and kind is less, is easy to preparation.Therefore composition of the present invention is simple, formulation operations is simple and easy.
2, owing to comprised the sodium carboxymethylcellulose mixture in a kind of oildag coating of the present invention, the constituent of sodium carboxymethylcellulose mixture and weight portion ratio thereof are: sodium carboxymethylcellulose 3-5, water 100, this kind mixture can improve raw-material suspension effect in the coating, be convenient to raw-material even mixing, improve the caking property of coating, and, also comprise liquid-state epoxy resin among the present invention, this liquid-state epoxy resin not only can improve the exquisiteness of coating, can also strengthen the caking property of coating.So the present invention easily mixes, cohesive is stronger.
The specific embodiment
Below in conjunction with the specific embodiment invention is described in further detail
A kind of oildag coating, its constituent and weight portion ratio thereof are: graphite powder 90-110, activated bentonite 2-6, sodium carboxymethylcellulose mixture 0.1-0.5, all the other are water.
The constituent and the weight portion ratio thereof of preferred oildag coating are: graphite powder 100, and activated bentonite 3-4, sodium carboxymethylcellulose mixture 0.2-0.3, all the other are water.
Also comprise a kind of liquid-state epoxy resin in the preferred oildag coating, the mass percent that this liquid-state epoxy resin accounts for oildag coating is 2-5%.
The constituent and the weight portion ratio thereof of preferably carboxymethyl cellulose sodium mixture are: sodium carboxymethylcellulose 3-5, water 100.
Preferred oildag coating is the ointment shape, and its viscosity is 14-16.
Embodiment 1:
A kind of oildag coating, its constituent and weight portion ratio thereof are: graphite powder 90, activated bentonite 6, sodium carboxymethylcellulose mixture 0.5, all the other are water; Also comprise a kind of liquid-state epoxy resin in the oildag coating, the mass percent that this liquid-state epoxy resin accounts for oildag coating is 5%; The constituent of sodium carboxymethylcellulose mixture and weight portion ratio thereof are: sodium carboxymethylcellulose 3, water 100; Oildag coating is the ointment shape, and its viscosity is 14.
Embodiment 2:
A kind of oildag coating, its constituent and weight portion ratio thereof are: graphite powder 110, activated bentonite 2, sodium carboxymethylcellulose mixture 0.1, all the other are water; Also comprise a kind of liquid-state epoxy resin in the oildag coating, the mass percent that this liquid-state epoxy resin accounts for oildag coating is 2%; The constituent of sodium carboxymethylcellulose mixture and weight portion ratio thereof are: sodium carboxymethylcellulose 5, water 100; Oildag coating is the ointment shape, and its viscosity is 16.
Embodiment 3:
A kind of oildag coating, its constituent and weight portion ratio thereof are: graphite powder 100, activated bentonite 4, sodium carboxymethylcellulose mixture 0.3, all the other are water; Also comprise a kind of liquid-state epoxy resin in the oildag coating, the mass percent that this liquid-state epoxy resin accounts for oildag coating is 3%; The constituent of sodium carboxymethylcellulose mixture and weight portion ratio thereof are: sodium carboxymethylcellulose 4, water 100; Oildag coating is the ointment shape, and its viscosity is 15.
Therefore not only composition is simple in the present invention, formulation operations is simple and easy, and easily mix, cohesive is stronger.
The above only is a better embodiment of the present invention; protection scope of the present invention is not exceeded with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (5)
1. oildag coating, it is characterized in that: the constituent of described oildag coating and weight portion ratio thereof are: graphite powder 90-110, activated bentonite 2-6, sodium carboxymethylcellulose mixture 0.1-0.5, all the other are water.
2. a kind of oildag coating according to claim 1 is characterized in that: the constituent of described oildag coating and weight portion ratio thereof are: graphite powder 100, and activated bentonite 3-4, sodium carboxymethylcellulose mixture 0.2-0.3, all the other are water.
3. a kind of oildag coating according to claim 1 and 2 is characterized in that: also comprise a kind of liquid-state epoxy resin in the described oildag coating, the mass percent that this liquid-state epoxy resin accounts for oildag coating is 2-5%.
4. a kind of oildag coating according to claim 3 is characterized in that: the constituent of described sodium carboxymethylcellulose mixture and weight portion ratio thereof are: sodium carboxymethylcellulose 3-5, water 100.
5. a kind of oildag coating according to claim 4 is characterized in that: described oildag coating is the ointment shape, and its viscosity is 14-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102712835A CN101941048B (en) | 2010-09-03 | 2010-09-03 | Graphite paste coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102712835A CN101941048B (en) | 2010-09-03 | 2010-09-03 | Graphite paste coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101941048A true CN101941048A (en) | 2011-01-12 |
| CN101941048B CN101941048B (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102712835A Expired - Fee Related CN101941048B (en) | 2010-09-03 | 2010-09-03 | Graphite paste coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN101941048B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045023A (en) * | 2012-12-19 | 2013-04-17 | 青岛菲特电器科技有限公司 | Electric heating paste |
| 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 |
| 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 |
| CN113814348A (en) * | 2020-06-19 | 2021-12-21 | 江门市汉智新材料有限公司 | Special brass casting graphite coating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515229A (en) * | 1974-07-04 | 1976-01-16 | Okazaki Minerals Refining | CHUZOYOSO GOTOKATAZAI |
| CN85100565A (en) * | 1985-04-01 | 1986-06-10 | 南京工学院 | Water-based self-drying polyvinyl alcohol coatings for casting |
| 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 |
| CN101116896A (en) * | 2007-04-30 | 2008-02-06 | 广东省韶铸集团有限公司 | Water-based cast iron resin sand coating with low gas-forming property and high air permeability |
-
2010
- 2010-09-03 CN CN2010102712835A patent/CN101941048B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515229A (en) * | 1974-07-04 | 1976-01-16 | Okazaki Minerals Refining | CHUZOYOSO GOTOKATAZAI |
| CN85100565A (en) * | 1985-04-01 | 1986-06-10 | 南京工学院 | Water-based self-drying polyvinyl alcohol coatings for casting |
| 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 |
| CN101116896A (en) * | 2007-04-30 | 2008-02-06 | 广东省韶铸集团有限公司 | Water-based cast iron resin sand coating with low gas-forming property and high air permeability |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045023A (en) * | 2012-12-19 | 2013-04-17 | 青岛菲特电器科技有限公司 | Electric heating paste |
| 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 |
| 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 |
| CN113814348A (en) * | 2020-06-19 | 2021-12-21 | 江门市汉智新材料有限公司 | Special brass casting graphite coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101941048B (en) | 2012-07-04 |
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Granted publication date: 20120704 |
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