发明名称 EXCHANGEABLE CORE MOLD FOR FORMING METALIC TEE-PIPE
摘要 A core exchangeable type mold for forming a metal 'T' type pipe provided to reduce a manufacturing cost for a mold and conveniently keep the mold. A core exchangeable type mold for forming a metal 'T' type pipe includes an upper mold(100), a lower mold(200), and a core mold(300). The upper mold embraces an upper part of a metal pipe. The lower mold embraces a lower part of the metal pipe and has a circular punch hole formed in a vertical direction to a horizontal axis. A lower end of the punch hole has a locking sill(201) and forms a core exchanging part(210). The core mold is inserted in the core exchanging part, is punched vertically, and provides a space for forming a vertical hole.
申请公布号 KR100771793(B1) 申请公布日期 2007.10.30
申请号 KR20070036451 申请日期 2007.04.13
申请人 TAE KWANG CO., LTD. 发明人 YOON, SUNG DUK
分类号 B21D26/037;B21D7/00;B21D26/047 主分类号 B21D26/037
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