摘要
主要介绍了粉末高能喷涂成形技术及其在耐高温材质构件上的应用研究。采用真空热压和高压热等静压提高构件的致密度。结果表明:等离子喷涂成形纯钨喉衬的相对密度为85.6%;经真空热压处理后,喉衬相对密度提高到91.7%;经高压热等静压处理后,喉衬相对密度增大至96.7%。由此可见,高压热等静压可大大提高喷涂成形件的致密度。高能喷涂成形技术可制备出形状复杂的耐高温材质构件,如钨/钼复合喷管、钨坩埚?钨发热体、破甲弹药形罩等异形构件和二硅化钼回转体等。
The high energy spray forming technology and its applications to heat-resistant materials were introduced.Vacuum hot pressing and high-pressure hot isostatic pressing were used to improve densification.The results show that the relative density of pure tungsten throat liner fabricated by plasma spray forming is 85.6%,that by vacuum hot pressing is increased to 91.7%,and that by high-pressure hot isostatic pressing is to 96.7%,which indicates that high-pressure hot isostatic pressing can raise density.High energy spray forming technology can also fabricate heat-resistant materials with complicated shape,such as special-shaped parts like W/Mo composite nozzle tube,tungsten crucible,tungsten heating unit,heterotypical component of highexplosive antitank HEAT and MoSi2 gyroroter etc.
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2010年第4期297-301,共5页
Powder Metallurgy Technology
基金
湖南省应用基础研究计划重点项目(2007FJ2004)
关键词
高能喷涂成形
难熔金属
异型件
应用
high energy spray forming
refractory metal
heterotypical part
application
