CN104174811A - Coating for aluminum or zinc alloy casting - Google Patents
Coating for aluminum or zinc alloy casting Download PDFInfo
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- CN104174811A CN104174811A CN201310223997.2A CN201310223997A CN104174811A CN 104174811 A CN104174811 A CN 104174811A CN 201310223997 A CN201310223997 A CN 201310223997A CN 104174811 A CN104174811 A CN 104174811A
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- coating
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- zinc alloy
- alloy casting
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Abstract
The invention belongs to the technical field of metal materials and metallurgy, and particularly relates to a coating for aluminum or zinc alloy casting. The coating is characterized by being composed of, by weight, 41 parts to 61 parts of calcium carbonate powder, 22 parts to 28 parts of sodium silicate powder and five parts to 15 parts of barium sulfate, and the granularity of the coating is 6500 to 8500. Therefore, the coating has the advantages of being low in cost, easy to use, and capable of improving the surface smoothness of the casting.
Description
Technical field: the invention belongs to metal material and metallurgical class technical field, be specifically related to a kind of aluminium or zinc alloy casting coating.
Background technology: at present, in the Special Processes of Metal Castings of aluminium or kirsite, for the coating of metal mold cavity and cast instrument surface spraying, main to adopt the pulvis such as zinc oxide, whiting, graphite powder be main material, by different proportion, adds waterglass and water is modulated, and after stirring, spraying is used, its shortcoming is, the one, material cost is high, and the 2nd, allotment troublesome poeration, the time is long, the 3rd, raw material heat-insulating property is poor, need frequent heating die cavity and spraying, die cavity is sticky burning easily, causes surface quality of continuous castings poor.
Summary of the invention: the object of this invention is to provide a kind of cost low, use simply, can improve aluminium or the zinc alloy casting coating of cast(ing) surface light knot degree.
Technical scheme of the present invention is: a kind of aluminium or zinc alloy casting coating, it is characterized in that being formed by weight by following component, and calcium carbonate powder 41-61, sodium metasilicate powder 22-28, barium sulfate 5-15, granularity is 6500-8500 order.
Wherein, described barium sulfate consists of by weight following component, SiO
270-75, Na
2o30-25.
The invention has the beneficial effects as follows, can be by natural crystal pulverising mill systems such as calcite, lime stone, dolomites as the calcium carbonate powder of base-material; The powders such as barium sulfate are the chemical industry preparations in relevant natural ore deposit, and preparation method is very simple, after only needing satisfactory various powders to mix in proportion, stir and can use, experimental data proves, it is fire-resistant for this product, the aspect such as viscose glue, plasticising is effective, and after spraying, die cavity temperature retention time is long, and is difficult for bonding, the surface roughness Ra casting out can reach 3.2, thereby it is low to have cost, use simply, can improve the advantage of cast(ing) surface light knot degree.
The specific embodiment:
Embodiment 1: taking same particle sizes is 6500 object calcium carbonate powder 61g, sodium metasilicate powder 22g, barium sulfate 5g, the wherein SiO in sodium metasilicate powder
270g, Na
2o30g, stirs after mixing and can make this coating.
Embodiment 2: taking same particle sizes is 8500 object calcium carbonate powder 41g, sodium metasilicate powder 28g, barium sulfate 5g, the wherein SiO in sodium metasilicate powder
275g, Na
2o25g, stirs after mixing and can make this coating.
Embodiment 3: taking same particle sizes is 7000 object calcium carbonate powder 50g, sodium metasilicate powder 25g, barium sulfate 10g, the wherein SiO in sodium metasilicate powder
272g, Na
2o28g, stirs after mixing and can make this coating.
Claims (2)
1. aluminium or a zinc alloy casting coating, is characterized in that being comprised of by weight following component, calcium carbonate powder 41-61, sodium metasilicate powder 22-28, barium sulfate 5-15, and granularity is 6500-8500 order.
2. by a kind of aluminium claimed in claim 1 or zinc alloy casting coating, it is characterized in that described sodium metasilicate powder consists of by weight following component, SiO
270-75, Na
2o30-25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310223997.2A CN104174811A (en) | 2013-05-28 | 2013-05-28 | Coating for aluminum or zinc alloy casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310223997.2A CN104174811A (en) | 2013-05-28 | 2013-05-28 | Coating for aluminum or zinc alloy casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104174811A true CN104174811A (en) | 2014-12-03 |
Family
ID=51956315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310223997.2A Pending CN104174811A (en) | 2013-05-28 | 2013-05-28 | Coating for aluminum or zinc alloy casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104174811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537507A (en) * | 2015-12-07 | 2016-05-04 | 禹州市神运机械有限公司 | Paint for aluminum alloy casting and use method thereof |
| CN110732632A (en) * | 2019-11-08 | 2020-01-31 | 徐州丰华金属材料有限公司 | Preparation method of novel zinc alloy coatings |
-
2013
- 2013-05-28 CN CN201310223997.2A patent/CN104174811A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537507A (en) * | 2015-12-07 | 2016-05-04 | 禹州市神运机械有限公司 | Paint for aluminum alloy casting and use method thereof |
| CN110732632A (en) * | 2019-11-08 | 2020-01-31 | 徐州丰华金属材料有限公司 | Preparation method of novel zinc alloy coatings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |