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用于生产粉末冶金材料的两种新技术已得到美国缅因州戈勒姆新材料学会的认可,这两种新技术就是加压加速烧结技术和热脉冲热等静压技术。 加压加速烧结(pressure assisted sintering)是一种低压粉末冶金致密技术,它可以利用模压成形,也可用于注射成形(injection moulded)。戈勒姆新材料学会声称,按设备成本、加工的经济情况和能耗要求,加压加速烧结技术的优越性都大大超过传统的烧结技术和热等静压技术。 加压加速烧结技术为获得完全致密的粉末冶金材料提供一种良好的方法,它所用的压力比传统的热等静压技术所用的压力要低一个数量级。施加压力时的温度大体上和烧结温度相同。这种方法在采用70～105kg/cm~2的压力时,密致度可大于理论密度的99％。
Two new technologies for the production of powder metallurgy materials have been approved by the New York-based Institute of Materials, Maine, Maine. These two new technologies are Pressurized Accelerated Sintering and Hot Pulse HIP. Pressure assisted sintering is a low-pressure powder metallurgy densification technique that can be molded or injection molded. The Gorham New Materials Society claims that the advantages of pressurized accelerated sintering at the cost of equipment, the economics of processing, and energy requirements far outweigh the traditional sintering and hot isostatic pressing technologies. Pressurized accelerated sintering technology provides a good method of obtaining fully dense powder metallurgy material with an order of magnitude lower pressure than conventional hot isostatic pressing techniques. The temperature at which the pressure is applied is generally the same as the sintering temperature. This method in the use of 70 ~ 105kg / cm ~ 2 pressure, the density can be greater than the theoretical density of 99%.