发明名称 MULTI LAYER PIPE MUFACTURING APPARATUS AND THE MANUFACTURING METHOD OF MULTI LAYER PIPE USING THIS
摘要 The present invention relates to a multilayered pipe manufacturing device, and a multilayered pipe manufacturing method using the same. The multilayered pipe with a desirable diameter is manufactured by manufacturing a base pipe by inserting an insertion pipe into a reception pipe; extruding the base pipe at a constant pressure with a ram; thermal treating the base pipe with a thermal treatment unit; and extending the thermal-treated base pipe with an extending unit. Accordingly, the multilayered pipe manufacturing device and the multilayered pipe manufacturing method using the same are capable of economically manufacturing the multilayered pipe by mechanical and metallurgical plurality of pipes with a relatively simple configuration through a relative simple process.
申请公布号 KR101590021(B1) 申请公布日期 2016.02.01
申请号 KR20140105766 申请日期 2014.08.14
申请人 DONGYEUN CO., LTD. 发明人 JANG, DONG SEOK;PARK, JONG BAE
分类号 B21C37/06 主分类号 B21C37/06
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