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Oxidation treatment method for hard and brittle hard and brittle duralumin

An oxidation treatment, hard aluminum technology, applied in the direction of anodic oxidation, electrolytic coating, surface reaction electrolytic coating, etc., can solve the problems that the effect of products with relatively high hardness is not obvious and reduce the use effect, so as to improve the yield and increase Work efficiency, oxidation effect is obvious effect

Inactive Publication Date: 2014-11-05
ANHUI CHENGYOU AUTO PARTS MFG
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Problems solved by technology

[0002] Oxidation treatment is to add a protective layer on the surface of the product. It uses the principle of electrochemistry to form a layer of film on the surface of the workpiece. In addition to the purpose of anti-corrosion and wear, this film can also achieve the purpose of coloring. Therefore, it is currently used for various The workpiece needs to be oxidized, which can increase the service life and oxidation resistance of the product, but at present, there are many oxidation treatment methods that are not very effective for some products with relatively high hardness. For large metal workpieces, it will greatly reduce its use effect

Method used

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Embodiment Construction

[0013] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific examples.

[0014] A method for oxidation treatment of hard and brittle duralumin, comprising the following steps:

[0015] (1) Clean the duralumin with gasoline to thoroughly clean the greasy dirt on the surface of the duralumin;

[0016] (2) Clean the duralumin again with hot water at 90 degrees Celsius;

[0017] (3) Put the duralumin into the sink and wash it for the third time with flowing cold water;

[0018] (4) Add 900-1000g / l industrial nitric acid in clear water during the flow cleaning process, so that the oxide skin on the surface of duralumin is completely removed and cleaned;

[0019] (5) The duralumin is pulled out and dried, and then aligned for oxidation;

[0020] (6) After the oxidation is completed, wash it twice with flowing cold water, and...

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Abstract

An oxidation treatment method for hard and brittle duralumin relates to the technical field of oxidation treatment. The method comprises the following steps: cleaning duralumin with gasoline to thoroughly rinse the oil on the duralumin surface; washing the duralumin again with hot water of 90 DEG C; cleaning the duralumin in a sink with flowing cold water for the third time cleaning, and adding 900-1000g / L industrial nitric acid into the clean water in the flowing cleaning process to completely remove oxide skins on the duralumin surface; fishing out the duralumin and drying, and then aligning for oxidation; and after the oxidation, cleaning the duralumin twice with flowing cold water, and then letting it dry naturally. The invention has obvious oxidation effect, can improve the yield of finished products in post production, especially has obvious effect on hard and brittle metal, and is beneficial to improve the work efficiency.

Description

Technical field: [0001] The invention relates to the technical field of oxidation treatment methods, in particular to an oxidation treatment method for relatively hard and brittle duralumin. Background technique: [0002] Oxidation treatment is to add a protective layer on the surface of the product. It uses the principle of electrochemistry to form a layer of film on the surface of the workpiece. In addition to the purpose of anti-corrosion and wear, this film can also achieve the purpose of coloring. Therefore, it is currently used for various The workpiece needs to be oxidized, which can increase the service life and oxidation resistance of the product, but at present, there are many oxidation treatment methods that are not very effective for some products with relatively high hardness. For large metal workpieces, its use effect will be greatly reduced. Invention content: [0003] The technical problem to be solved by the present invention is to provide an oxidation tr...

Claims

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Application Information

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IPC IPC(8): C25D11/04C25D11/16
Inventor 倪明光张红喜
Owner ANHUI CHENGYOU AUTO PARTS MFG
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