Split die and method for production of compacted powder metal parts
    1.
    发明授权
    Split die and method for production of compacted powder metal parts 有权
    分体模具和生产压实粉末金属零件的方法

    公开(公告)号:US07235201B2

    公开(公告)日:2007-06-26

    申请号:US11017013

    申请日:2004-12-20

    IPC分类号: B29C43/04

    CPC分类号: B22F3/03

    摘要: 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.

    摘要翻译: 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。

    Method of making powder metal parts by surface densification
    2.
    发明申请
    Method of making powder metal parts by surface densification 审中-公开
    通过表面致密化制造粉末金属部件的方法

    公开(公告)号:US20070048169A1

    公开(公告)日:2007-03-01

    申请号:US11211220

    申请日:2005-08-25

    IPC分类号: B22F3/24

    摘要: A method of producing parts from powdered metal having a first step of providing a powder, which is compressed at a pressure of 25 to 65 tsi to provide a green compact. The compact is then sintered at 2000° F. to 2400° F. for 20 to 60 minutes and cooled. After the compact has been cooled, the density of the compact is increased to greater than 7.4 g/cc. The compact is austenitized in an atmosphere of gas containing propane and a carbon potential of 0.8%. In one embodiment, the gas also contains ammonia. The compact is heated in the atmosphere at a temperature of 1600° F. for 40 minutes. Immediately following the heating, the compact is quenched in oil a temperature between 120° F. and 150° F. for 10 to 15 minutes. Lastly the compact is tempered at a temperature between 300° F. and 1000° F. for 30 to 90 minutes.

    摘要翻译: 一种从粉末状金属制造零件的方法,该方法具有第一步,提供粉末,其压力为25至65tsi,以提供生坯。 然后将该压块在2000°F下烧结至2400°F,持续20至60分钟并冷却。 在压块已经冷却之后,压块的密度增加到大于7.4g / cc。 该压实体在含有丙烷的气体和0.8%的碳势的气氛中奥氏体化。 在一个实施方案中,气体还含有氨。 将该压块在大气中在1600°F的温度下加热40分钟。 在加热之后,紧凑件在油中在120°F和150°F之间的温度下淬火10至15分钟。 最后,将压坯在300°F至1000°F之间的温度下回火30至90分钟。

    Split die and method for production of compacted powder metal parts
    3.
    发明申请
    Split die and method for production of compacted powder metal parts 有权
    分体模具和生产压实粉末金属零件的方法

    公开(公告)号:US20060131775A1

    公开(公告)日:2006-06-22

    申请号:US11017013

    申请日:2004-12-20

    IPC分类号: B22F3/03

    CPC分类号: B22F3/03

    摘要: 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.

    摘要翻译: 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。