公开(公告)号：WO2004037526A3

公开(公告)日：2004-07-29

申请号：PCT/US0332180

申请日：2003-10-10

Applicant: THT PRESSES INC

Inventor： KAMM RICHARD J ,  LOUGHMAN MICHAEL J ,  SWARTS RONALD P

IPC: B22D17/12 ,  B22D17/20 ,  B22D17/22 ,  B22D17/24 ,  B22D19/14 ,  B22D17/00 ,  B22D19/00 ,  B22D37/00

CPC classification number: B22D17/22 ,  B22D17/12 ,  B22D17/2015 ,  B22D17/24 ,  B22D19/14

Abstract: A fiber reinforced porous preform (58) is positioned within a die cavity (55) defined by upper and lower die members (48, 52), and the lower die member (52) defines at least one gate opening (62) in the center portion of a water cooled shot sleeve (15) which receives a vertically moveable shot piston (18). The area of the gate opening is small relative to the area of the shot sleeve, and the lower die member defines an annular recess (65) above the inner surface of the shot sleeve for entrapping a shell of pre-solidified metal. Air vent slots (68) extend outwardly between the shot sleeve and lower die member and are closed by the shell of pre-solidified metal. In one embodiment, the shot sleeve (15') and shot piston (18') are non-circular or oval in cross-section; and the lower die member (52') has a plurality of longitudinally space gate openings (62').

Abstract translation: 纤维增强多孔预成型件（58）定位在由上模具构件（48）和下模具构件（52）限定的模腔（55）内，并且下模构件（52）在中心部分限定至少一个门开口（62） 接收垂直活动的喷射活塞（18）的水冷喷枪套筒（15）的一部分。 门开口的面积相对于喷射套筒的面积小，并且下模具构件在射出套筒的内表面上方限定一个环形凹部（65），用于截留预固化金属壳体。 排气孔（68）在喷射套筒和下模具构件之间向外延伸，并被预固化的金属壳体封闭。 在一个实施例中，喷射套筒（15'）和喷射活塞（18'）的横截面为非圆形或椭圆形; 并且下模构件（52'）具有多个纵向空间门开口（62'）。