发明授权
- 专利标题: Method for making fasteners
- 专利标题(中): 制造紧固件的方法
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申请号: US93014申请日: 1979-11-09
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公开(公告)号: US4296512A公开(公告)日: 1981-10-27
- 发明人: William A. Kilinskas , Ronald J. Selines , Jaak S. Vand den Sype
- 申请人: William A. Kilinskas , Ronald J. Selines , Jaak S. Vand den Sype
- 申请人地址: NY New York
- 专利权人: Union Carbide Corporation
- 当前专利权人: Union Carbide Corporation
- 当前专利权人地址: NY New York
- 主分类号: C21D8/06
- IPC分类号: C21D8/06 ; C21D7/10 ; C21D8/00 ; B21K1/48
摘要:
A method for making a fastener having a head and a shank from wire or rod consisting essentially of AISI 200 or 300 series stainless steel comprising the following steps:(a) cooling the wire or rod to a temperature of less than about minus 75.degree. C.;(b) drawing the cold wire or rod through a die at a strain sufficient to provide a tensile strength for the wire or rod in the range of about 75 ksi to about 160 ksi, the strain and the die size being such that the area of the wire or rod will be reduced by at least about 3 percent; and(c) dividing the wire or rod into slugs and cold heading each slug to provide the fastener.
公开/授权文献
- USD420014S Tooth system 公开/授权日:2000-02-01
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