发明名称 THE MANUFACTURING METHOD OF THE NON SLIP PIPE
摘要 PURPOSE: A method for manufacturing a non-slip pipe is provided to prevent slip on a pipe used in a handrail and to reduce the number of processes for manufacturing the pipe. CONSTITUTION: A method for manufacturing a non-slip pipe comprises the steps of: forming grooves on the surface of a pipe material, forming the pipe material into a pipe shape, adjusting the pipe material so that the ends of the pipe material are abutted against each other through a stand roller unit and welding the ends of the pipe material, and correcting the straightness of the pipe using a squeeze roller unit.
申请公布号 KR20120117535(A) 申请公布日期 2012.10.24
申请号 KR20110035341 申请日期 2011.04.15
申请人 HANYANG TECH CO., LTD. 发明人 CHO, BO RAM
分类号 B21D5/12;B21C37/08;B21C37/30;B21D17/04 主分类号 B21D5/12
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