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公开(公告)号:US06250125B1
公开(公告)日:2001-06-26
申请号:US09526480
申请日:2000-03-15
申请人: Shigeharu Ukai , Shunji Mizuta , Tsunemitsu Yoshitake , Shigeki Hagi , Noriaki Hirohata , Katsuhiro Abe , Takanari Okuda
发明人: Shigeharu Ukai , Shunji Mizuta , Tsunemitsu Yoshitake , Shigeki Hagi , Noriaki Hirohata , Katsuhiro Abe , Takanari Okuda
IPC分类号: B21B2102
CPC分类号: B21B21/02 , B21B17/06 , B21B21/005
摘要: A method of producing an iron-based dispersion-strengthened alloy tube (2-1) by utilizing a rolling machine having grooved rolls (5, 5-1) and a mandrel (9)for forming the tube (2-1) from a raw rolling tube (2). In the method, a length of contact between a rolling surface (6, 6-1) of a caliber formed by the grooved rolls and an outer circumference of the rolling tube is set to be 0.9 times or more of a circumferential length of the rolling tube over the entire area of the rolling region. It is preferred that the method be performed by a Pilger type rolling machine.
摘要翻译: 通过利用具有开槽辊(5,5-1)的轧制机和用于从管(2-1)形成管(2-1)的心轴(9)从铁基分散强化合金管(2-1)制造铁基分散强化合金管 生轧管(2)。 在该方法中,由带槽辊形成的口径的滚动面(6,6-1)与轧制管的外周之间的接触长度设定为轧制的圆周长度的0.9倍以上 在轧制区域的整个区域上管。 该方法优选由皮尔格式滚压机进行。