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利用真空感应凝壳熔炼设备熔铸了 Ti Al合金 483Q发动机的排气阀门坯件 ,经热等静压及机械加工后所制得的 Ti Al合金排气阀门重量比原材质的减少了 49.3%。 483Q台架试验测试结果表明 ,Ti Al合金适宜于制造 483Q发动机排气阀门。
The exhaust valve blank of Ti Al alloy 483Q engine was cast by using vacuum induction crust melting equipment. The weight of Ti Al alloy exhaust valve made by hot isostatic pressing and mechanical processing was reduced by 49.3% than the original material. 483Q bench test results show that, Ti Al alloy suitable for the manufacture of 483Q engine exhaust valve.