It sets up a given basis of successful manufacturing of low pressure casting dies of impeller of high-speed fan and other casts like it.

为高速风扇叶轮及其它类似铸件的低压铸造模具的成功制造奠定了一定的基础。

youdao

The service condition of aluminium alloy casting dies are analysed in this paper. The test of vacuum heat treatment process by high pressure gas quenching for the dies have been carried out.

分析了大、中型铝合金压铸模的工作条件，进行了真空高压气冷热处理工艺的试验研究，选出了适宜的工艺参数，并应用于生产。

youdao