POST-BORIDING PROCESSES FOR TREATING PIPE AND RECOVERING BORONIZING POWDER专利检索- .钻管的附件例如清洁器专利检索查询-专利查询网

POST-BORIDING PROCESSES FOR TREATING PIPE AND RECOVERING BORONIZING POWDER
申请号	US15918560	申请日	2018-03-12	公开(公告)号	US20180265960A1	公开(公告)日	2018-09-20
申请人	BWT LLC;			发明人	Craig Zimmerman; Jim Hedman; Jeff Hemmer;
摘要	A process comprising: placing a boronizing powder composition in a metal pipe comprising a first end, a second end, an inside surface and an outside surface; heating the pipe to form a borided layer on the inside surface, and spent boronizing powder; removing the spent boronizing powder from the pipe, thereby forming an empty boronized pipe; heating the empty boronized pipe to above its austenitizing temperature, thereby forming an austenitized pipe; quenching the austenitized pipe, thereby forming a quenched pipe; tempering the quenched pipe, thereby forming a tempered pipe; and threading the tempered pipe.
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