发明申请
US20130121868A1 METHOD OF MANUFACTURING A WELD-FREE APPARATUS FOR CONNECTION OF DISSIMILAR METALS USING FUNCTIONALLY GRADED COMPOSITIONALLY CONTROL POWDER METALLURGY AND HOT ISOSTATIC PROCESSING METHODS
审中-公开
使用功能分级的组合物控制粉末冶金和热等静压处理方法制造用于连接非金属材料的无焊接装置的方法
- 专利标题： METHOD OF MANUFACTURING A WELD-FREE APPARATUS FOR CONNECTION OF DISSIMILAR METALS USING FUNCTIONALLY GRADED COMPOSITIONALLY CONTROL POWDER METALLURGY AND HOT ISOSTATIC PROCESSING METHODS
- 专利标题（中）： 使用功能分级的组合物控制粉末冶金和热等静压处理方法制造用于连接非金属材料的无焊接装置的方法
-
申请号： US13463428申请日： 2012-05-03
-
公开(公告)号： US20130121868A1公开(公告)日： 2013-05-16
- 发明人: David W. Gandy , Kent K. Coleman , John Shingledecker
- 申请人： David W. Gandy , Kent K. Coleman , John Shingledecker
- 申请人地址： US NC Charlotte
- 专利权人： ELECTRIC POWER RESEARCH INSTITUTE, INC.
- 当前专利权人： ELECTRIC POWER RESEARCH INSTITUTE, INC.
- 当前专利权人地址： US NC Charlotte
- 主分类号： B22F7/02
- IPC分类号： B22F7/02 ; B22D23/06
摘要：
A method of manufacturing a weld-free apparatus for use in the connection of dissimilar metals includes the steps of providing a mold designed to replicate a reverse of the apparatus, introducing a low alloy, ferritic steel composition atomized powder into a first portion of the mold, introducing a series of atomized powders incrementally into a second portion of the mold to form a transition region between the ferritic steel composition and an austenitic stainless steel composition, and introducing an austenitic stainless steel composition atomized powder into a third portion of the mold. The method further includes the step of consolidating and melting the atomized powders in a high temperature, high pressure inert gas atmosphere to form the apparatus.