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Automobile water pump shell

Product name: Automobile water pump shell
Weight: 0.2-1.5kg
Material: ADC-12, A380 aluminum alloy
Process: high pressure casting





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Automobile water pump shell castings are an important part of the automobile water pump, responsible for housing the pump impeller and bearings, and connected with the engine cooling system, to cool the engine.
Automotive water pump shell castings are usually made of aluminum alloy or cast iron materials, and are produced by gravity casting or die casting process. The process cost of gravity casting is relatively low, but the precision is poor. The die casting process has higher precision but higher cost.
The price of car water pump shell castings depends on the material, process, size and brand and other factors, generally ranging from tens of dollars to hundreds of dollars.
Automobile pump shell usually adopts sand casting as casting method. This casting method consists of three basic parts: casting metal preparation, mold preparation and casting treatment. In sand casting, the upper die, the lower die and the sand core that can be installed in the cavity formed after the upper die and the lower die are formed are first manufactured. Then the upper and lower die are heated to 180-240 ° C, and the inner surface of the cavity formed after closing the mold is sprayed with paint. Next, the upper die and the lower die are heated to 300-350 ° C, and the sand core is successively installed in the cavity of the lower die, and then the upper die is covered in the upper die and locked. Liquid aluminum or liquid alloy aluminum is poured through the pouring channel, and finally the casting mold is opened to take out the one-time casting molding product.
In addition, there is a method involving the processing of the water pump housing blank, including the use of milling machines and T-slot turning knives in the base machining threaded holes and positioning pin holes, as well as the use of the inner hole boring tool in the pre-die casting hole machining the upper cylinder cavity and the lower cylinder cavity. However, this method involves more machining than the casting process.

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