CN1935410A - Magnesium alloy coating composition and its preparing method - Google Patents
Magnesium alloy coating composition and its preparing method Download PDFInfo
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- CN1935410A CN1935410A CN 200510060833 CN200510060833A CN1935410A CN 1935410 A CN1935410 A CN 1935410A CN 200510060833 CN200510060833 CN 200510060833 CN 200510060833 A CN200510060833 A CN 200510060833A CN 1935410 A CN1935410 A CN 1935410A
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- magnesium alloy
- alloy coating
- coating composition
- graphite powder
- pure water
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Abstract
The present invention relates to a magnesium alloy coating material and its preparation method. Said magnesium alloy couting material composition includes (by wt%) 9-13% of zinc oxide, 3-7% of graphite powder, 5-9% of boric acid, 3-5% of water-glass and the rest is pure water. Said magnesium alloy coating material can greatly raise magnesium alloy casting quality.
Description
Technical field
The invention belongs to a kind of coating, be applied to the manufacturing of magnesium-alloy material especially.
Background technology
Magnesium alloy has specific strength, specific stiffness height, and vibration damping is strong, easy machining, and series of advantages such as easy recovery have extremely important using value and wide application prospect in fields such as automobile, electronics, electrical equipment, traffic, Aero-Space and national defense and military.But cast magnesium alloy is mobile poor, and density is less, if the method for taking to improve pouring temperature improves alloy flowability, certainly will increase the air-breathing and degree of oxidation of alloy, cause foundry goods to produce defectives such as pore, shrinkage porosite, slag inclusion, can be by improving the flowability that the mo(U)ld face situation improves alloy.At present, common coating is easy to scaling loss, and liquid magnesium alloy also is easy to oxidation, burning when flowing in mould.
Summary of the invention
Be used for magnesium alloy production at common coating and be easy to scaling loss, and liquid magnesium alloy also is easy to oxidation when flowing in mould, cause a large amount of cinder hole of magnesium-alloy material appearance and owe to cast defective, the invention provides a kind of novel magnesium alloy coating and preparation method thereof, and then improve the magnesium alloy cast quality.
The present invention is achieved by the following technical solutions: each composition of coating is by weight percentage: zinc oxide is 9～13%, and graphite powder is 3～7%, and boric acid is 5～9%, waterglass 3～5%, and all the other are pure water, wherein the graphite powder requirement is 200～800 orders.
Coating its preparation method of the present invention is: get 66～80%70～80 ℃ pure water with paint can, getting 3～5% waterglass earlier pours in the pure water and stirs with stirring rod, getting 5～9% boric acid again pours in the pure water and stirs, adding 9～13% zinc oxide then stirs, add 3～7% graphite powders at last and stir, just obtain described magnesium alloy coating.
Mold temperature was 220～250 ℃ when coating of the present invention sprayed, and the compressed air pressure that acts on spray gun is 0.21Mpa (30psi), and it is Φ 0.7mm that spray gun adopts spray gun for paint nozzle bore commonly used.
The advantage of coating of the present invention has been to improve flowability and the non-oxidizability of liquid magnesium alloy in mould, has suppressed the oxidation of magnesium and has owed the casting tendency.
The specific embodiment
Provide concrete embodiment of the present invention and preparation method below.
Embodiment 1
Technical scheme at first prepares coating as mentioned above, gets pure water 790g with the cleaning paint can, adds glass 30g earlier, and the back that stirs adds boric acid 50g, adds zinc oxide 90g again, and the back that stirs adds graphite powder 40g, stirs and just obtains this coating.
Embodiment 2
Technical scheme at first prepares coating as mentioned above, gets pure water 785g with the cleaning paint can, add glass 35g earlier, the back that stirs adds boric acid 45g, adds zinc oxide 100g again, add graphite powder 35g after stirring, stir again and just obtain this coating.
Embodiment 3
Technical scheme at first prepares coating as mentioned above, gets pure water 720g with the cleaning paint can, add glass 45g earlier, the back that stirs adds boric acid 80g, adds zinc oxide 100g again, add graphite powder 55g after stirring, stir again and just obtain this coating.
Claims (3)
1, a kind of magnesium alloy coating composition is characterized in that, described coating is made up of following each component, and each component is calculated according to percentage by weight and is:
Zinc oxide 9～13%
Graphite powder 3～7%
Boric acid 5～9%
Waterglass 3～5%
Pure water 66～80%
2, a kind of magnesium alloy coating thing compound according to claim 1 is characterized in that described graphite powder is the 200-800 order.
3, the method for preparation magnesium alloy coating composition according to claim 1, it is characterized in that getting the pure water of 70～80 ℃ of ormal weights with the cleaning paint can, the waterglass, boric acid, zinc oxide, the graphite powder that successively add ormal weight, after stirring successively, just obtain described magnesium alloy coating composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510060833 CN1935410A (en) | 2005-09-19 | 2005-09-19 | Magnesium alloy coating composition and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510060833 CN1935410A (en) | 2005-09-19 | 2005-09-19 | Magnesium alloy coating composition and its preparing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1935410A true CN1935410A (en) | 2007-03-28 |
Family
ID=37953247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510060833 Pending CN1935410A (en) | 2005-09-19 | 2005-09-19 | Magnesium alloy coating composition and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1935410A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879578A (en) * | 2010-06-18 | 2010-11-10 | 中国兵器工业第五二研究所 | Mold release agent for rare-earth magnesium alloy pressure casting and prepration method thereof |
| CN103143673A (en) * | 2013-03-29 | 2013-06-12 | 上海坤孚企业(集团)有限公司 | Coating for magnesium alloy metal mold casting as well as preparation method and applications thereof |
| CN104190898A (en) * | 2014-09-22 | 2014-12-10 | 中北大学 | Extrusion casting method of particle reinforced magnesium matrix composites |
| CN105537508A (en) * | 2016-01-12 | 2016-05-04 | 昆明理工大学 | Zinc ingot mold coating and preparation method |
-
2005
- 2005-09-19 CN CN 200510060833 patent/CN1935410A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879578A (en) * | 2010-06-18 | 2010-11-10 | 中国兵器工业第五二研究所 | Mold release agent for rare-earth magnesium alloy pressure casting and prepration method thereof |
| CN101879578B (en) * | 2010-06-18 | 2012-06-27 | 中国兵器工业第五二研究所 | Mold release agent for rare-earth magnesium alloy pressure casting and prepration method thereof |
| CN103143673A (en) * | 2013-03-29 | 2013-06-12 | 上海坤孚企业(集团)有限公司 | Coating for magnesium alloy metal mold casting as well as preparation method and applications thereof |
| CN103143673B (en) * | 2013-03-29 | 2015-07-08 | 上海坤孚企业(集团)有限公司 | Coating for magnesium alloy metal mold casting as well as preparation method and applications thereof |
| CN104190898A (en) * | 2014-09-22 | 2014-12-10 | 中北大学 | Extrusion casting method of particle reinforced magnesium matrix composites |
| CN105537508A (en) * | 2016-01-12 | 2016-05-04 | 昆明理工大学 | Zinc ingot mold coating and preparation method |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |