公开(公告)号：US4824628A

公开(公告)日：1989-04-25

申请号：US145944

申请日：1988-01-20

申请人： William A. Curfman

发明人： William A. Curfman

IPC分类号： B29C33/12 ,  B29C33/30 ,  B29C33/38 ,  B29C33/40 ,  B29C39/10

CPC分类号： B29C39/10 ,  B29C33/123 ,  B29C33/303 ,  B29C33/3857 ,  B29C33/40 ,  B29C2791/001 ,  B29K2091/00 ,  B29K2863/00 ,  B29K2891/00 ,  Y10T29/49885 ,  Y10T29/49888 ,  Y10T29/49964

摘要： A method of making epoxy molds for making wax patterns have metal posts disposed therein which transfer compressive forces between the force applying members of the press in which the molds are located. The metal cylinders in the upper mold section have right hand screw threaded axial bores and the metal cylinders in the lower mold section have left hand screw threaded axial bores. The metal cylinders are connected together when the mold sections are poured by connecting studs which have oppositely threaded ends. After the epoxy cures, screw drivers are inserted into the threaded bores from outside the molds and the connecting studs are turned in a direction which causes the mold sections to separate in turnbuckle fashion. Accurate alignment of the inner end faces of the cylinders in the parting surfaces of the mold sections is achieved by having the metal posts connected during the mold pouring steps.

摘要翻译： 制造蜡图案的环氧树脂模具的方法具有设置在其中的金属柱，其在模具所在的压力机的施力构件之间传递压缩力。 上模具部分中的金属圆筒具有右手螺纹轴向孔，并且下模具部分中的金属圆筒具有左手螺纹轴向孔。 当模具部分通过具有相对螺纹端的连接螺柱浇注时，金属圆筒连接在一起。 在环氧树脂固化后，螺丝刀从模具外部插入螺纹孔中，并且连接螺柱沿着使模具部分以螺丝扣方式分离的方向转动。 通过在模具浇注步骤期间连接金属柱来实现模具分段的分模表面中的气缸的内端面的精确对准。