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Chemical treating liquid of shining sand face for surface of aluminum product and alloy, and treating technique

A technology of surface chemistry and treatment liquid, applied in the field of surface chemistry bright sand surface treatment liquid and treatment process, can solve the problems of difficult process control, complicated production, difficult quality assurance, etc., and achieve the effect of simple process and stable quality

Active Publication Date: 2009-05-06
广东华昌集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in order to achieve a bright sand surface in aluminum surface treatment, it is necessary to use mechanical sandblasting to spray a large area of ​​sand on the aluminum surface, and then use tri-acid chemical polishing to make it bright. There are large investment in equipment, complicated production, and difficult process control. Difficult to guarantee quality

Method used

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Examples

Experimental program
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Embodiment Construction

[0017] The process of the present invention is further illustrated with the following examples:

[0018] Take the 6063T5 profile 76×44 square tube and soak it in sulfuric acid-nitric acid (H 2 SO 4 153g / l, HNO 3 42g / l) in the degreasing solution for 3 minutes, washed with water and put into: H 2 SO 4 197.8g / 1, NH 4 HF 2 (with F - Calculation) 104.3g / l, NH 4 F 6.2g / l, NH 4 NO 3 8.5g / l, (NH 4 ) 2 HPO 4 3.1g / l, 0.2g / l ethylene glycol monobutyl ether, temperature 52°C, time 4.5min, the desired effect can be obtained, after which oxidation, coloring (dyeing) and electrophoresis are all available.

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Abstract

This invention discloses treatment solution and process for surface-polishing Al and its alloys. The treatment solution comprises: H2SO4, F-1, NH4F, NH4NO3, (NH4)2HPO4, and polar solvent. The process comprises: soaking deoiled Al material to be treated in the treatment solution at 55 plus and minus 5 deg.C for 3-6 min. This invention can obtain bright Al sand surface in one step, and the cost is less than 1 / 20 of the previous technique.

Description

Technical field: [0001] The invention specifically refers to a surface chemical bright sand surface treatment liquid and a treatment process suitable for building and decorative aluminum and its alloys. Background technique: [0002] At present, in order to achieve a bright sand surface in aluminum surface treatment, it is necessary to use mechanical sandblasting to spray a large area of ​​sand on the aluminum surface, and then use tri-acid chemical polishing to make it bright. There are large investment in equipment, complicated production, and difficult process control. Quality is difficult to guarantee. Invention content: [0003] The object of the present invention is to provide a chemically bright sand surface treatment solution and treatment process for the surface of aluminum materials and their alloys with simple process and stable quality, which are most suitable for the process operation of mass production. [0004] In order to achieve the above object, the tech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F3/03
Inventor 潘伟深康惠宜
Owner 广东华昌集团有限公司