发明名称 FORMATION METHOD OF HANDLE ORNAMENTAL STRUCTURE CONTAINING VACANT PART FOR SILVERWARE
摘要 A method for forming a handle member of a cooking utensil having a vacant part is provided to contain two external formation processes and carry out heat treatment and transfer processes so as to prevent ceramics from being cracked. An empty pipe is cut in predetermined sizes(1). The upper and lower ends of the cut pipes are swaged to form a circular shape on the handle member. A lip part of the handle member is welded(2,5). Impurities on the surface of a cooking utensil are removed(3). Desired shapes and features are coated(4). The welding process is progressed with first and second molding processes. The first molding process is an argon welding process. The second molding process has two steps of welding the lip part of a spoon and of holding a shape in which the lip part has foods.
申请公布号 KR20080067798(A) 申请公布日期 2008.07.22
申请号 KR20070005150 申请日期 2007.01.17
申请人 BAEKSAN INDUSTRIAL CO., LTD. 发明人 LEE, CHUNG KWAN
分类号 B21D53/70;B21D53/00;B23P15/00 主分类号 B21D53/70
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