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    • 49. 发明授权
    • Split die and method for production of compacted powder metal parts
    • 分体模具和生产压实粉末金属零件的方法
    • US07235201B2
    • 2007-06-26
    • US11017013
    • 2004-12-20
    • Edwin Scott HicklenSean KuplenKai XuRyan Sun
    • Edwin Scott HicklenSean KuplenKai XuRyan Sun
    • B29C43/04
    • B22F3/03
    • A device to compact parts out of powder material including a top die and a bottom die movable with respect to each other from an open position to a closed position, at least one punch associated with each of said dies for relative movement between the die and associated punch, said bottom die and bottom punch movable to positions defining a cavity substantially within said top die for receiving powder therein, said bottom punch and said top and bottom dies being relatively movable to draw powder down into a portion of said cavity adjacent the bottom die that is formed due to said relative movement, said top and bottom punches being movable toward each other to compact the powder and form the part, said top and bottom dies being separable to eject the part. Relative movement of the top and bottom die and bottom punch may take place during filling of the cavity with powder. Alternatively, relative movement may take place after the completion of filling the cavity adjacent the top die with sufficient powder to fill the part.
    • 一种用于从粉末材料压实部件的装置,包括可以从打开位置到关闭位置相对于彼此移动的顶模和底模,至少一个与所述模具中的每一个相关联的冲头,用于模具和相关联的相对运动之间的相对运动 所述底模和底冲头可移动到限定基本上在所述顶模内的空腔的位置,用于在其中接收粉末,所述底冲头和所述顶模和下模具相对移动以将粉末向下拉入与所述底模相邻的所述腔的一部分 由于所述相对运动而形成,所述顶部和底部冲头可相对于彼此移动以压实粉末并形成所述部件,所述顶部和底部模具可分离以弹出所述部件。 顶部和底部模具和底部冲头的相对运动可以在用粉末填充空腔期间发生。 或者,相对运动可以在用足够的粉末填充部分附近的顶部模具填充完成之后发生。