发明名称 Method of Manufacturing a Molding Die and a Molding Die
摘要 There are provided a method of manufacturing a molding die that can prevent occurrence of a trouble, such as break of a sand mold when a master mold is pulled out, and a molding die that can clearly transfer a pattern onto a molding. A meshed member is fixed to an entirety or part of a molding surface of a master mold, a sand mold having a molding surface with a protrusion and recess pattern thereon is fabricated by using the master mold, and a molding die having a molding surface with the protrusion and recess pattern thereon is cast by using the sand mold. The meshed member is made up of a flexible synthetic resin sheet having a number of mesh openings.
申请公布号 US2008141520(A1) 申请公布日期 2008.06.19
申请号 US20060884906 申请日期 2006.02.22
申请人 SEKISUI PLASTICS CO., LTD 发明人 TAKAKURA SHINJI;SUZUKI TAKASHI;SADAKUNI HIROYUKI
分类号 B23P13/04;B29C47/00 主分类号 B23P13/04
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