Powder extrusion of shaped sections
    1.
    发明申请
    Powder extrusion of shaped sections 审中-公开
    成形截面的粉末挤压

    公开(公告)号:US20100178194A1

    公开(公告)日:2010-07-15

    申请号:US12319723

    申请日:2009-01-12

    摘要: The present invention provides a continuous powder extrusion method for making an article having a profile including an outer shape and optionally including one or more inner hollows. One or more bulk material powders and one or more binders are provided, and the bulk material powders and the binders are mixed to form a mixture. A die is provided, the die optionally including a mandrel having one or more shapes. The mixture is extruded through the die and the optional mandrel to produce a green form. The green form is debound to produce a brown form and the brown form is sintered to produce a densified form. The densified form is optionally processed using thermal, mechanical, and/or thermomechanical processing to produce a wrought form. The densified or wrought form is optionally cut to a length and/or finished using traditional metal finishing processes.

    摘要翻译: 本发明提供一种用于制造具有包括外部形状并且可选地包括一个或多个内部凹部的轮廓的制品的连续粉末挤出方法。 提供一种或多种散装材料粉末和一种或多种粘合剂,并且将散装材料粉末和粘合剂混合以形成混合物。 提供模具,模具可选地包括具有一个或多个形状的心轴。 将混合物通过模头和可选的心轴挤出以产生绿色形式。 绿色形式被剥离以产生棕色形式,并且棕色形式被烧结以产生致密化形式。 任选地使用热,机械和/或热机械加工处理致密化形式以产生锻造形式。 使用传统的金属精加工方法,可选地将致密或锻造形式切割成长度和/或成品。