发明名称 A FORMATION WAY OF A PIPE CONNECTION DRAGON NUT
摘要 PURPOSE: A method of manufacturing a nut for pipe connection is provided to minimize the waste of materials and reduce the manufacturing hours. CONSTITUTION: A method of manufacturing a nut for pipe connection comprises the steps of: cutting a circular rod into a material(110) of predetermined size, heating and compressing the material to obtain a first molded material(111), compressing the first molded material to obtain a second molded material(112), compressing the second molded material to obtain a third molded material(113), compressing the third molded material to obtain a fourth molded material(114), compressing the fourth molded material to obtain a fifth moldable material(115), and forming thread on the inner surface of a first groove(120) of the fifth molded material.
申请公布号 KR20100067863(A) 申请公布日期 2010.06.22
申请号 KR20080126446 申请日期 2008.12.12
申请人 LIM, YOUNG WOO 发明人 LIM, YOUNG WOO
分类号 B21K1/68;B21K1/64;B23G1/00 主分类号 B21K1/68
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