CN1008979B - Water base paint for steel casting - Google Patents
Water base paint for steel castingInfo
- Publication number
- CN1008979B CN1008979B CN 86106610 CN86106610A CN1008979B CN 1008979 B CN1008979 B CN 1008979B CN 86106610 CN86106610 CN 86106610 CN 86106610 A CN86106610 A CN 86106610A CN 1008979 B CN1008979 B CN 1008979B
- Authority
- CN
- China
- Prior art keywords
- coating
- base paint
- water
- resin
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Mold Materials And Core Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to water-base paint for steel casting, which is composed of 51% to 66% of kyanite powder, 1% to 1.8% of bentonite, 1.0% to 1.5% of clay, 0.2% to 0.7% of resin, 0% to 0.02% of surfactant, etc. The water-base paint is suitable for brush coating, dip coating, spraying, curtain coating or rub-on coating on clay sand (dry type), resin-bonded sand, compound resin sand molds or mold cores, and is preferable in the process of casting carbon steel and alloy steel. A coating layer of the water-base paint is easy to peel off after sintering, and the average value of the surface roughness of a cast steel piece can reach 6.3 mu m to 12.5 mu m. Accordingly, great economic benefit can be obtained.
Description
The present invention is for during cast steel produces, the coating composition that sand mold and core are used.
The used steel moulder's paint of present domestic foundary industry is based on zircon flour coating.This kind coating is a kind of high coating of radioactive price that has.
From foreign data, Soviet Union SU01215831A file also is a kind of water base cast paint.It is by Lan Pinshi-sillimanite 58～64%, clay 1.5～2.5%, and organic matter 2.5～4.5%, surfactant 0～0.22% and water are formed.Wherein to account for the weight ratio of coating be 2.5～4.5% to organic matter, and content is big, and the gas forming amount of coating also must increase, and then is unfavorable for preventing choke fire and produce defective of foundry goods, and the material cost of coating is increased.
Homemade steel moulder's paint FFD-TOl belongs to zircon flour coating, has radioactivity.
The objective of the invention is to make a kind of suspension height, gas forming amount is low, and is "dead", cheap, can further reduce the water base paint for steel casting of surface roughness.
The present invention contains kyanite, clay and surfactant, and characteristics are to be refractory material with homemade kyanite, add that bentonite, silica gel, resin, carboxymethyl cellulose and water etc. form.Weight proportion is: kyanite 51～66%, and bentonite 1～1.8%, clay 1.0～1.5%, resin 0.2～0.7%, carboxymethyl cellulose 0～0.07%, silica gel 0.1～2%, surfactant 0～0.02% and water are formed.After the above-mentioned raw materials mixing, can become coating of the present invention in 0.5～2 hour in grinding in ball grinder.
The present invention is more than 96% through surveying 8 hours suspension measured values.Thixotropy, permeability and to be coated with extension property all excellent, recording the high temperature crack resistance in 2 minutes in 1200 ℃ of anxious heat of high temperature is one-level.After coating is sintered, easily peel off, belong to the coating of ceramic mould with foundry goods.
Another characteristics of the present invention are that the homemade kyanite of employing is a refractory material.Wherein contain Al
2O
3, SiO
2, Fe
2O
3, TiO
2Deng composition.These compositions can guarantee the raising of surface quality of continuous castings.
Characteristics more of the present invention are the resins with inorganic silica gel instead of part.Make wherein resin demand reduce to 0.2～0.7%, can reduce the material cost of coating so widely.The more important thing is that the gas forming amount that makes coating reduces to 15ml/g(1000 ℃) below, can avoid taking place the foundry goods fire of choking and produce casting defect.
The present invention is applicable to clay-bonded sand (dry type), resin sand, closes on fat sand, waterglass sand mold and the core and brush, but also dip-coating, spraying, showering and obliterating.Can be used for watering cast carbon steel, alloy steel casting.Can adjust viscosity for water before using, be coated with usefulness after must stirring simultaneously.And in use needn't stir, the thickness of coating can be different by thickness, core material and the size of sand mold.But must coating form smooth surface.After adopting this material, the surface roughness average of steel-casting can reach the advanced international standard of 12.5～6.3 μ m, has alleviated sand removal operation intensity simultaneously, when having saved fettler and energy consumption, and obtains huge economic benefit.
We have successively used following three embodiment.(%) is as follows for its proportioning:
Example 1 example 2 examples 3
Aquamarine stone flour 51 55 66
Bentonite 1.0 1.4 1.8
Clay 1.5 1.4 1.0
Resin 0.2 0.5 0.7
Carboxymethyl cellulose 0.07 0.05 0
Silica gel 0.1 12
Surfactant 0 0.005 0.02
Water surplus surplus surplus
On resin sand core, apply, the water conservancy diversion position of the carbon steel impeller of pump of casting, inside surface roughness mean value can reach 12.5～6.3 μ m, is higher than the regulation of China's JB/TQ366-84 standard promulgated by the ministries or commissions of the Central Government.Make the mechanical efficiency of pump also improve 1.5～2% simultaneously.
Claims (1)
1, a kind of water base paint for steel casting, contain kyanite, clay and surfactant, it is characterized in that adding resin, carboxymethyl cellulose, bentonite and silica gel, its weight proportion is kyanite 51～66%, clay 1.0～1.5%, surfactant 0～0.02%, resin 0.2～0.7%, carboxymethyl cellulose 0～0.07%, bentonite 1～1.8% and silica gel 0.1～2%, all the other are water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106610 CN1008979B (en) | 1986-10-03 | 1986-10-03 | Water base paint for steel casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106610 CN1008979B (en) | 1986-10-03 | 1986-10-03 | Water base paint for steel casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86106610A CN86106610A (en) | 1988-04-13 |
| CN1008979B true CN1008979B (en) | 1990-08-01 |
Family
ID=4803281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86106610 Expired CN1008979B (en) | 1986-10-03 | 1986-10-03 | Water base paint for steel casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1008979B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063161C (en) * | 1997-03-14 | 2001-03-14 | 冶金工业部钢铁研究总院 | Coating resisting molten-metal aluminium liquid corrosion and coating method thereof |
| CN103819221B (en) * | 2014-01-17 | 2015-09-30 | 北京奥润开元环保科技研究院有限公司 | A kind of concrete segment strengthens liquid and its preparation method and application |
| CN103878300A (en) * | 2014-03-03 | 2014-06-25 | 安徽华通铸业有限公司 | Paint composition for steel casting surfaces |
-
1986
- 1986-10-03 CN CN 86106610 patent/CN1008979B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86106610A (en) | 1988-04-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |