在过去十五年中,高温恒压法(Hot Isostatic Processing)已脱离纯粹的实验阶段,成为紧实粉末金属的生产方法或消除铸件内部孔隙的方法。以前用它进行处理的材料通常为几克或几磅,但现在,对于3～5吨的金属批料进行处理也并不少见。高温恒压法,或一般称的HIP法(为其英文名称之字头缩写),是同时对部件(例如铸件)表面施以高温和恒压的方法。压力介质一 Over the past fifteen years, Hot Isostatic Processing has emerged from purely experimental stages as a method of compacting powder metal or as a means of eliminating porosity in castings. The amount of material previously used to process it is typically a few grams or a few pounds, but it is not uncommon now to handle between 3 and 5 tons of metal batch. High temperature and pressure method, or the so-called HIP method (its initials for the English name), is a method of simultaneously applying high temperature and constant pressure on the surface of a component (for example, a casting). Pressure medium one