7-series aluminum product anodic oxide film release agent and release method
A technology of anodized film and aluminum products, applied in the direction of coating, surface reaction electrolytic coating, electrolytic coating, etc., can solve the problems of long processing time, excessive corrosion, containing toxic and harmful chemicals, etc., to achieve high production efficiency, reaction Short time, uniform removal effect
Active Publication Date: 2020-09-22
广州波耳化工科技有限公司
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Problems solved by technology
[0006] The purpose of the present invention is to provide an aluminum alloy anodic oxidation film release agent, which is especially suitable for removing the anodic oxidation film of 7-series aluminum products and high-brightness aluminum alloy anodic oxidation products, so as to solve the problems caused by the alkali etching method in the prior art. Loss of product gloss, excessive corrosion problems
[0007] Another object of the present invention is to provide a method for removing the anodic oxidation film of aluminum alloy, which is especially suitable for removing the anodic oxidation film of 7 series aluminum products, so as to solve the problem of toxic and harmful chemicals and alkali corrosion treatment in the existing film removal technology. Low efficiency and long processing time
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[0030] The present invention will be further described in detail below in conjunction with specific embodiments. Unless otherwise specified, the following reagents are all commercially available.
[0031] According to the proportioning relationship in Examples 1 to 18 in Table 1, the raw material components were mixed and stirred in turn to obtain an aluminum alloy anodized film release agent, and then the release agents prepared in Examples 1 to 18 were used for The oxide films with a thickness of 15 μm, 20 μm, and 25 μm were demolded, and the time required for demoulding at different temperatures was recorded, and compared with the demoulding effect of the stripping solution described in the patent CN106757296A at 50°C.
[0032] Among them, the method for removing the anodized film on the surface of the reworked aluminum alloy workpiece, the specific steps are:
[0033] 1) Soak the aluminum product workpiece in a degreasing solution, perform degreasing treatment, and then wa...
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The invention relates to the technical field of aluminum alloy surface treatment, in particular to an aluminum alloy anodic oxide film removal agent and film removal method. The aluminum alloy anodicoxide film removal agent comprises 50-1500 g of potassium hydroxide and / or sodium hydroxide, 100-800 g of polyhydric alcohol and / or polyol ether and 250-500 L of water. The aluminum alloy anodic oxidefilm removal method is further provided. According to the aluminum alloy anodic oxide film removal agent and film removal method, the original luster on the surface of an aluminum alloy product is not damaged, the surface of the aluminum alloy product cannot cause excessive corrosion, the film removal process is environment-friendly and non-toxic, and production efficiency is high.
Description
technical field [0001] The invention relates to the technical field of aluminum alloy surface treatment, in particular to a release agent and a release method for anodized film of 7 series aluminum products. Background technique [0002] As a commonly used alloy material, aluminum alloy has the advantages of high hardness, low density, good processing performance, good electrical and thermal conductivity, and heat treatment strengthening. It has good application prospects in the fields of construction, automobiles, electric power, and aerospace. [0003] In the production of aluminum alloy anodic oxidation, it is inevitable that there will be products with unqualified anodic oxidation film. If these aluminum alloy products with unqualified anodic oxidation film are scrapped, it will inevitably cause great losses. In the actual production process, the anodic oxidation film is often The aluminum alloy products with unqualified film are reworked, and the old oxide film on the s...
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IPC IPC(8): C25D11/24
CPCC25D11/24
Inventor 朱沛壬
Owner 广州波耳化工科技有限公司