CN101892474A - Method for enhancing corrosion resistance of aluminum alloy die casting - Google Patents
Method for enhancing corrosion resistance of aluminum alloy die casting Download PDFInfo
- Publication number
- CN101892474A CN101892474A CN 201010195809 CN201010195809A CN101892474A CN 101892474 A CN101892474 A CN 101892474A CN 201010195809 CN201010195809 CN 201010195809 CN 201010195809 A CN201010195809 A CN 201010195809A CN 101892474 A CN101892474 A CN 101892474A
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- die casting
- aluminum alloy
- corrosion resistance
- casting
- alloy die
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Abstract
The invention discloses a method for enhancing corrosion resistance of an aluminum alloy die casting. The method comprises the steps of vibration grinding of the die casting in a vibration grinding machine, cleaning and oil removal, activating treatment and chromizing treatment so that a corrosion-resistant protective layer is formed on the surface of the die casting. The method can effectively enhance the surface corrosion resistance of the aluminum alloy casting, has the advantages of simple process, convenient operation, low cost and remarkable effect, and is suitable to be used in the surface corrosion resistance process of the aluminum alloy casting.
Description
Technical field
The present invention relates to a kind of cast member surface treatment method, relate in particular to a kind of method that strengthens corrosion resistance of aluminum alloy die casting.
Background technology
In the aluminium alloy compression casting industry, because the characteristic of common high-pressure casting itself, the die casting total surface is to have some casting flaws, produces as defectives such as surface blackening, cold belch, flow liners, and these casting flaws directly have influence on the erosion resistance of foundry goods.
Summary of the invention
The object of the present invention is to provide a kind of effective processing die casting surface imperfection, strengthen the method for die casting surface erosion resistance.
Technical scheme of the present invention comprises:
A kind of method that strengthens corrosion resistance of aluminum alloy die casting wherein, may further comprise the steps:
S1, die casting is put into the vibrations of ceramic stone or stainless shot vibrations shredder ground 5-30 minute;
S2, cleaning oil removing;
S3, with hydrogen peroxide and sulphuric acid soln die casting is done activation and handle;
S4, chromate treating.
The technique effect that the present invention produces is: aluminum alloy die casting is behind grinding, cleaning, activation, chromate treating, and the surface forms layer protecting film, has significantly improved the aluminum alloy casting corrosion resistance.
Description of drawings
Fig. 1 strengthens the method process flow sheet of corrosion resistance of aluminum alloy die casting for the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, illustrate that technical process of the present invention is as follows:
S1, die casting is put into the vibrations of ceramic stone or stainless shot vibrations shredder ground 5-30 minute;
S2, cleaning oil removing;
S3, with hydrogen peroxide and sulphuric acid soln die casting is done activation and handle;
S4, chromate treating.
In sum, aluminum alloy casting of the present invention is through after the vibrations grinding, cleaning oil removing, activation treatment and chromate treating, and the surface forms the anti-corrosion protection layer, can strengthen the erosion resistance of aluminum alloy die casting effectively, has realized purpose of the present invention.
Should be understood that above-mentioned description at specific embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (1)
1. a method that strengthens corrosion resistance of aluminum alloy die casting is characterized in that, may further comprise the steps:
S1, die casting is put into the vibrations of ceramic stone or stainless shot vibrations shredder ground 5-30 minute;
S2, cleaning oil removing;
S3, with hydrogen peroxide and sulphuric acid soln die casting is done activation and handle;
S4, chromate treating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195809 CN101892474A (en) | 2010-06-08 | 2010-06-08 | Method for enhancing corrosion resistance of aluminum alloy die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195809 CN101892474A (en) | 2010-06-08 | 2010-06-08 | Method for enhancing corrosion resistance of aluminum alloy die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101892474A true CN101892474A (en) | 2010-11-24 |
Family
ID=43101815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010195809 Pending CN101892474A (en) | 2010-06-08 | 2010-06-08 | Method for enhancing corrosion resistance of aluminum alloy die casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101892474A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045817A (en) * | 1989-03-17 | 1990-10-03 | 艾尔坎国际有限公司 | The surface treatment of aluminium |
| JP2000144463A (en) * | 1998-11-17 | 2000-05-26 | Nippon Peroxide Co Ltd | Smut removing agent for aluminum metal |
| JP2005305395A (en) * | 2004-04-26 | 2005-11-04 | Toyota Industries Corp | Method for coating aluminium based substrate and coated material of aluminium based substrate |
-
2010
- 2010-06-08 CN CN 201010195809 patent/CN101892474A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045817A (en) * | 1989-03-17 | 1990-10-03 | 艾尔坎国际有限公司 | The surface treatment of aluminium |
| JP2000144463A (en) * | 1998-11-17 | 2000-05-26 | Nippon Peroxide Co Ltd | Smut removing agent for aluminum metal |
| JP2005305395A (en) * | 2004-04-26 | 2005-11-04 | Toyota Industries Corp | Method for coating aluminium based substrate and coated material of aluminium based substrate |
Non-Patent Citations (1)
| Title |
|---|
| 《中国博士学位论文全文数据库 工程科技I辑》 20100215 余会成 6063铝合金三价铬化学转化膜的制备及性能研究 , 第2期 2 * |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101124 |