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Defect Detection of Automobile Shell Castings

For defects visible to the naked eye on the casting surface and the parts with defects found during flaw detection, 10mm shall be made by wire cutting × 10 mm × 10 mm test piece. Then, ultrasonic cleaning of the sample with acetone and absolute ethanol for 2-3 times,...

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Casting Defects and Causes of Automobile Shell Castings

A company used the wet casting method to produce a certain type of automobile shell castings, which are made of GX40CrNiSi25-20 (German standard is 1.4848, national standard is 2520 stainless steel). The casting defect rate in the production process is as high as 20%. In order to reduce the...

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Simulation analysis of vacuum pump shell castings

In order to verify whether the top pouring process is reasonable, whether the molten iron mold filling can ensure the smooth pouring, and ensure that the pouring system can effectively feed the shrinkage position of the vacuum pump shell casting, the mold filling and solidification process of the pouring...

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Sand casting technology of shearer rocker arm shell

If the sand mold casting process is unreasonable, the local hot spots of the casting shell will increase. In order to ensure the compactness of the internal structure of the casting and effectively prevent sand casting defects such as looseness and shrinkage cavity in the thick parts of the...

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