发明申请
- 专利标题： COLD ROLLING DEVICES AND COLD ROLLED ROTARY SHOULDERED CONNECTION THREADS
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申请号： US16173923申请日： 2018-10-29
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公开(公告)号： US20190060979A1公开(公告)日： 2019-02-28
- 发明人: Rakesh Singh , Ke Ken Li , Michael Hui Du , Fei Song , Stephen Ray Stafford , Anthony Louis Williams Collins , Keith Moriarty , Doyle Brinegar
- 申请人： Schlumberger Technology Corporation
- 主分类号： B21H3/04
- IPC分类号： B21H3/04 ; B23G9/00
摘要：
A device for cold rolling a thread on a tubular support member of a rotary shouldered thread connection includes obtaining an original root depth of a thread root, cold rolling the thread until a minimum increased root depth tolerance is achieved.
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