Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making composite or hollow article
Reexamination Certificate
2007-10-23
2010-12-21
King, Roy (Department: 1733)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making composite or hollow article
C419S043000, C419S050000
Reexamination Certificate
active
07854886
ABSTRACT:
A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.
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Nishiyama Toshimasa
Sanada Kazuto
Tamaki Yuichi
King Roy
Mai Ngoclan T
Nikkeikin Aluminum Core Technology Co., Ltd.
Nippon Light Metal Co. Ltd.
Smith Patent Office
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