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美国马萨诸塞伯林顿的Dynamet技术有限公司的一项钛基粉末冶金制造自动进出气体的气体发生器阀门已获专利。据“金属加工新闻”报道:阀门材料是由金属基体化合物,包括一种钛合金基体并用TiC粒子来增强基体。该公司声称:钛零件制造中的关键工序是用冷等静压加工直到近净形零件成形,然后将预成形件烧结成约95％密度的零件。如果需要高密度的构件,可以进行热等静压。冷、热等静压相结合形成了该公司的新专利。 据说,专利的名字为“陶瓷金属钛”,如,5～30％的TiC的混合物。据公司报道;轻量的汽车
A titanium-based powder metallurgy from Dynamet Technologies Ltd. in Burlington, Mass., USA, has been patented to create a gas generator valve that automatically enters and exits the gas. According to the Metalworking News, the valve material consists of a metal matrix compound, including a titanium alloy matrix and TiC particles to reinforce the matrix. The company claims that the key process in the manufacture of titanium parts is cold isostatic pressing until the nearly net shape is formed and the preform sintered to about 95% density. If high-density components are required, hot isostatic pressing can be performed. Cold, hot isostatic pressing combined to form the company’s new patent. It is said that the patent’s name is “ceramic titanium metal”, such as 5 to 30% of the mixture of TiC. According to company reports; lightweight car