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Method For Avoiding Gap Of Anodized Aluminum Alloy Due To Oxidation
| With the rapid development of technology, the development of the foundry industry has become faster and faster, and anodized aluminum alloys have also been fully utilized. The application fields of anodized aluminum alloys have also become more and more extensive. Many mechanical departments now require more and more anodized aluminum alloys, because anodized aluminum alloys are often widely used in precision instruments. |
The size of the impeller, the inner cavity of the casing and various pumps, the accuracy of the contour and the surface roughness directly affect the working efficiency of the pump and hydraulic system, the development of energy consumption and cavitation, etc. The strength and cooling thermal resistance of anodized aluminum alloys such as cylinder blocks and cylinder heads, cylinder liners, piston rings and exhaust pipes of internal combustion engines directly affect the service life of the engine.
How to avoid the phenomenon of gaps in anodized aluminum alloy due to oxidation
In short, the quality of anodized aluminum alloy has a great impact on the performance of mechanical products. Therefore, in the process of manufacturing cast products, each process must be controlled and inspected in strict accordance with technical rules and technical conditions in order to produce qualified products.
Since the anodized aluminum alloy is made of a sand mold or a metal mold, the aluminum or aluminum alloy heated to a liquid state is injected into the cavity. Its raw material, aluminum, is oxidized when it encounters oxygen. Once oxidized, the quality of the cast product is difficult to guarantee. Therefore, how to solve the problem of casting oxidation has been the focus of the industry.
How to avoid the phenomenon of gaps in anodized aluminum alloy due to oxidation
According to research statistics, the following methods are proposed by PTJ Shop to help solve the oxidation problem of castings: high voltage and high current density impact method. That is, a high-voltage electric shock is applied in the initial stage of oxidation of the casting, and the oxidized part is connected to the sheet by electric shock.
Surface grinding method. The method is to fill the gaps of the oxidized services with a polished aluminum mill and connect the resulting gaps together as a bridge. Surface peening. This method uses a round-headed hammer to hit the gap and close it by tapping to achieve the purpose of continuous shooting.
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