Aluminum alloy oil tank cover base casting is a very important part of the production process of aluminum alloy oil tank cover. It includes the selection of aluminum alloy materials, the selection of the casting process, the selection of casting temperature, and the prevention of porosity.
Aluminum alloy is a kind of metal material with low density, good thermal conductivity, high strength, good plasticity, and excellent corrosion resistance. Therefore, aluminum alloy is the most commonly used material for oil tank cover base casting. Aluminum alloy oil tank cover base casting is usually produced by the pressure casting process, which is the process of forcing molten metal into a metal mold under pressure. The pressure casting process has the advantages of high production efficiency, good surface quality, a small shrinkage rate, and high strength.
The selection of casting temperature of aluminum alloy oil tank cover base casting is also very important. The casting temperature should be appropriate, too low, easy to produce cracks, too high, easy to produce bubbles. According to the characteristics of aluminum alloy, the casting temperature should be controlled at about 700~720℃.
In addition, in the process of aluminum alloy oil tank cover base casting, it is necessary to pay attention to the prevention of porosity. Porosity is a common quality defect in aluminum alloy casting, which seriously affects the strength and corrosion resistance of the casting. Generally, the following measures can be taken to prevent porosity in aluminum alloy oil tank cover base casting: firstly, the quality of the alloy should be strictly controlled, and the content of impurities in the alloy should be reduced; secondly, the exhaust performance of the mold should be improved, and the exhaust channels should be properly arranged; thirdly, the molten metal should be poured into the mold quickly and evenly.
In summary, the production of aluminum alloy oil tank cover base casting requires the selection of aluminum alloy materials, the selection of casting process, the selection of casting temperature, and the prevention of porosity. Only by controlling these factors can the quality of aluminum alloy oil tank cover base casting be guaranteed.
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