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二十多年来.随着航空工业的发展,对钛合金的需要日益迫切。由于钛合金比重小(4.5克/厘米~3),比强度高,耐腐蚀等特性,是现代航空技术不可缺少的一种新材料。铸造工艺可以直接制造形状复杂的零件,免去大量的机械加工,提高材料利用率(一般为45%,精密铸造工艺可达75～90%)。目前国外发展钛合金铸造技术有了很大提高,基本解决了熔炼浇注、造型工艺和设备,使钛铸件的生产达到了工业性的规模。国内开展这方面的工作也已有十余年的时间,钛合金铸造工艺的研究有了较大的进展,具备了一定规模的研制能力,
Over the past two decades, with the development of the aviation industry, the demand for titanium alloys has become increasingly urgent. Due to the small specific gravity of titanium alloy (4.5g / cm ~ 3), high specific strength and corrosion resistance, it is an indispensable new material for modern aviation technology. Casting process can be directly manufactured parts of complex shapes, eliminating a lot of machining, improve material utilization (usually 45%, precision casting process up to 75 to 90%). The current development of titanium alloy casting technology has been greatly improved, the basic solution to the melting casting, molding technology and equipment, so that the production of titanium castings reached the scale of industry. Domestic work in this area has also been more than ten years, titanium alloy casting process has made great progress in research, with a certain amount of research and development capabilities,