Aluminum wheel hub silver white layer and preparation method thereof
An aluminum wheel, silver-white technology, applied in the field of aluminum wheel rim silver-white and its preparation, can solve the problems of high power consumption, long oxidation time, thick oxide film layer, etc., and achieve energy saving, short oxidation time, and thin oxide film layer. Effect
Inactive Publication Date: 2018-02-16
徐州擎宇铝制品有限公司
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Problems solved by technology
However, in the preparation process of existing aluminum rims, highly polluting chemicals such as phosphoric acid, nitric acid and caustic soda are often used as treatment reagents, and the oxidation time is long, which consumes a large amount of electric energy; the existing aluminum rim oxide film The layer is also relatively thick, and there are disadvantages such as not easy to clean, easy to be corroded, etc.
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[0021] The present embodiment provides a kind of preparation method of aluminum rim silver, comprising steps:
[0022] S1: Use a degreasing agent to degrease the aluminum wheel, and then wash it twice with water;
[0023] S2: anodize the aluminum wheel rim that has been washed in step S1 with sulfuric acid, and then wash it twice;
[0024] S3: dyeing the aluminum wheel rim that has been washed in step S2 with organic dyes, and then washing twice;
[0025] S4: The aluminum wheel rim that has been washed in step S3 is sealed for the first time with 137 nickel-free sealant produced in Germany, and then washed twice;
[0026] S5: The aluminum wheel rim that has been washed in step S4 is sealed for the second time with a nickel sealant produced in Italy, and then washed twice;
[0027] S6: The aluminum wheel rim that has been washed in step S5 is sealed for the third time with domestic transparent vegetable oil, and then dried to obtain a silver-white aluminum wheel rim.
[0028...
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The invention relates to an aluminum wheel hub silver white layer and a preparation method thereof. The preparation method comprises the following steps of 1, neutral oil removal is carried out on analuminum wheel hub, and then washing treatment is carried out; 2, the aluminum wheel hub subjected to washing treatment in step 1 is subjected to anodic oxidation, and then washing treatment is carried out; 3, the aluminum wheel hub subjected to washing treatment in step 2 is dyed, and then washing treatment is carried out; 4, the aluminum wheel hub subjected to washing treatment in step 3 is sealed for the first time, and then washing treatment is carried out; 5, the aluminum wheel hub subjected to washing treatment in step 4 is sealed for the second time, and then washing treatment is carried out; and 6, the aluminum wheel hub subjected to washing treatment in step 5 is sealed for the third time, and then the aluminum wheel hub is dried. According to the preparation method, oxidation time can be shortened, the electric energy is saved, and production efficiency is improved; and an oxidation film layer of the prepared aluminum wheel hub silver white layer is thinner and is more transparent, compared with an original oxidized product, the prepared aluminum wheel hub silver white layer is more corrosion-resistant, longer in ultraviolet-resistant time and higher in heat dissipation performance, and therefore fatigue burst of the aluminum wheel hub in long-distance running can be avoided.
Description
technical field [0001] The invention relates to the technical field of anodic oxidation, in particular to a silvery aluminum wheel rim and a preparation method thereof. Background technique [0002] The rim is also called the hub. The most common way to upgrade the car rim is to replace it with an aluminum alloy rim, or to use an enlarged rim to improve the performance and appearance of the car. Car rims are mainly divided into steel rims and aluminum alloy rims (Alloywheel) in terms of materials. The most popular rims in the refit market are of course aluminum alloy rims. Two types of forging. In addition to the advantages of durability and beauty, aluminum alloy wheels are also fuel-efficient, good heat dissipation and good roundness. However, in the preparation process of existing aluminum rims, highly polluting chemicals such as phosphoric acid, nitric acid and caustic soda are often used as treatment reagents, and the oxidation time is long, which consumes a large am...
Claims
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IPC IPC(8): C25D11/24C25D11/08
CPCC25D11/243C25D11/08C25D11/246
Inventor 黄建陆乃千付伟李杰
Owner 徐州擎宇铝制品有限公司