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    • 1. 发明申请
    • METHOD AND DEVICE FOR HOT-ISOSTATIC PRESSING OF PARTS
    • 用于部件热稳定压制的方法和装置
    • WO1997020652A1
    • 1997-06-12
    • PCT/SE1996001568
    • 1996-11-29
    • ASEA BROWN BOVERI ABBERGMAN, Carl
    • ASEA BROWN BOVERI AB
    • B22F03/15
    • B30B11/002B22F3/15Y10S425/815
    • A method of treating parts (34) in a treatment chamber (33) by hot-isostatic pressing with an inert gas as pressure medium and in the presence of a purifying agent (25a) for the inert gas comprises the steps of reducing the pressure in the treatment chamber (33), increasing the pressure again by introducing the inert gas, increasing the temperature in the treatment chamber (33) by activating heating elements (9a), and, after a certain holding time, reducing the pressure and the temperature again. Especially if the purifying agent (25a) is of the same material as the parts (34) being treated, the purifying effect of the purifying agent becomes insufficient. The effect of the purifying agent (25a) is improved according to the invention by bringing the inert gas, at least when being introduced, to circulate such that it is heated, passes through the purifying agent and is thereafter cooled before contacting the parts. The invention also relates to a device for carrying out the method.
    • 通过用惰性气体作为压力介质进行热等静压处理和在用于惰性气体的净化剂(25a))的存在下处理处理室(33)中的部分(34)的方法包括以下步骤: 处理室(33),通过引入惰性气体再次增加压力,通过激活加热元件(9a)来增加处理室(33)中的温度,并且在一定的保持时间之后再次降低压力和温度 。 特别是如果净化剂(25a)与被处理的部分(34)具有相同的材料,则净化剂的净化效果变得不足。 根据本发明,通过使惰性气体至少在引入时循环使其被加热而通过净化剂,然后在接触部件之前冷却,从而提高了净化剂(25a)的效果。 本发明还涉及一种用于执行该方法的装置。