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公开(公告)号：US4656002A
公开(公告)日：1987-04-07
申请号：US783555
申请日：1985-10-03
CPC分类号： B22F3/156 , B22F3/1216 , B22F3/1225 , B22F3/125 , B22F3/15 , B30B11/001 , B22F2998/00
摘要： A preformed body (12) from powder material of metallic and nonmetallic compositions and combinations thereof, is consolidated to form a densified compact (12") of a predetermined density. An outer container mass (20), capable of fluidity in response to predetermined forces and temperatures and which is porous to gases at lesser temperatures and forces than said predetermined force and temperature, surrounds an internal medium (22). The internal medium encapsulates the preformed body (12) within the container mass (20) and is capable of melting at the lesser temperatures to form a liquid barrier to gas flow therethrough. The internal medium (22) is capable of rapid hermetic sealing during the early stages of preheat. External pressure is applied by a pot die (16) and ram (14) to the entire exterior of the container mass (20) to cause the predetermined densification of the preformed body (12) by hydrostatic pressure.
摘要翻译： 将来自金属和非金属组合物及其组合的粉末材料的预成形体（12）固结，以形成预定密度的致密的压坯（12“）。 围绕内部介质（22）的外部容器质量（20）能够响应于预定的力和温度而具有流动性，并且在比较小的温度和比所述预定的力和温度更低的温度下对气体是多孔的。 内部介质将预制体（12）包封在容器质量（20）内，并且能够在较低温度下熔化以形成液体阻挡气体流过其中。 内部介质（22）能够在预热的早期阶段快速密封。 通过罐模具（16）和冲头（14）将外部压力施加到容器质量块（20）的整个外部，以通过静水压使预成形体（12）预定的致密化。
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2.发明授权
公开(公告)号：US4341557A
公开(公告)日：1982-07-27
申请号：US173648
申请日：1980-07-30
申请人： James R. Lizenby
发明人： James R. Lizenby
CPC分类号： B22F3/156 , B22F3/1208 , B22F3/15 , B28B7/342 , B30B11/001 , B22F2998/00
摘要： A method for hot consolidating powder of metallic and nonmetallic composition to form a densified powder article by forming a container of a material which melts at a combination of temperature and time at that temperature which combination would not adversely affect the desired microstructure and physical properties of the densified powder article and applying heat and pressure to the exterior of the container to compact and densify the powder within the cavity at a temperature below the melting point of the container and thereafter melting the container into molten metal to remove the container from the densified powder article while maintaining the temperature of the article below the incipient melting temperature of the article. Thereafter, the material from the melted container may be recycled to form a new container.
摘要翻译： 一种用于热固化金属和非金属组合物的粉末以形成致密粉末制品的方法，通过在该温度下形成在温度和时间的组合下熔融的材料的容器，该组合不会不利地影响所需的微结构和物理性能 致密的粉末制品，并且将热和压力施加到容器的外部，以在低于容器的熔点的温度下压缩和致密空腔内的粉末，然后将容器熔化成熔融金属，以从致密粉末制品中移出容器 同时保持制品的温度低于制品的初始熔化温度。 此后，来自熔融容器的材料可以被再循环以形成新的容器。
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