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公开(公告)号:US09938602B2
公开(公告)日:2018-04-10
申请号:US14382803
申请日:2013-02-22
CPC分类号: C21D9/085 , B21D3/00 , B23D21/00 , C21D1/18 , C21D1/42 , C21D8/10 , C21D9/0062 , C21D9/08 , Y02P10/253
摘要: A method of producing a metal pipe which can suppress quenching defects is provided. In the method, a bend of the metal pipe is straightened by a straightening machine 10. Next, both pipe end portions of the metal pipe whose bend has been straightened are cut off by a pipe cutting apparatus 20. Next, a plurality of the metal pipes whose both pipe end portions have been cut off are aligned in the axial direction thereof to be conveyed to a quenching apparatus 30, and the metal pipes are quenched by being cooled after being heated by induction heating.
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公开(公告)号:US20150068650A1
公开(公告)日:2015-03-12
申请号:US14382803
申请日:2013-02-22
CPC分类号: C21D9/085 , B21D3/00 , B23D21/00 , C21D1/18 , C21D1/42 , C21D8/10 , C21D9/0062 , C21D9/08 , Y02P10/253
摘要: A production method of a metal pipe which can suppress quenching defects is provided. In the production method of a metal pipe according an embodiment of the present invention bend of the metal pipe is straightened by a straightening machine 10. Next, both pipe end portions of the metal pipe whose bend has been straightened are cut off by a pipe cutting apparatus 20. Next, a plurality of the metal pipes whose both pipe end portions have been cut off are aligned in the axial direction thereof to be conveyed to a quenching apparatus 30, and the metal pipes are quenched by being cooled after being heated by induction heating.
摘要翻译: 提供了可以抑制淬火缺陷的金属管的制造方法。 在本发明的实施方式的金属管的制造方法中,通过矫直机10对金属管的弯曲进行矫直。接下来,弯曲弯曲的金属管的两个管端部被管切断 设备20接下来,将两个管端部已经被切掉的多个金属管在其轴向方向上排列以被输送到淬火设备30,并且金属管通过在感应加热之后被冷却而淬火 加热。
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公开(公告)号:US20140311632A1
公开(公告)日:2014-10-23
申请号:US14366447
申请日:2012-11-16
发明人: Kazuhiro Uchida , Takeshi Miki
CPC分类号: C21D1/18 , B60R21/16 , C21D1/42 , C21D8/105 , C21D9/0068 , C21D9/08 , C21D9/085 , C21D2211/008 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/54 , Y02P10/253
摘要: A method for producing a steel tube of high strength and toughness for air bag subjects a steel tube to high-frequency induction heating such that the outer surface temperature T1 (° C.) of the tube measured at the end of high-frequency induction heating is within the range defined by TAc3+40° C.≦T1≦1100° C., TAc3 is the temperature (° C.) of Ac3 transformation point. Using the measured outer surface temperature of the tube, time x (second) elapsed from when the outer surface temperature of steel tube reaches the temperature of Ac3 transformation point by high-frequency induction heating is calculated. Based on the calculated time x, time t (second) required from measurement of the outer surface temperature of steel tube to the start of rapid cooling is controlled so that the time t is within the range defined by 0 (sec)
摘要翻译: 用于制造气袋的高强度和韧性的钢管的方法使钢管进行高频感应加热,使得在高频感应加热结束时测量的管的外表面温度T1(℃) 在TAc3 + 40℃≦̸ T1≦̸ 1100℃限定的范围内,TAc3是Ac3相变点的温度(℃)。 使用测量的外表面温度,计算从钢管的外表面温度通过高频感应加热到达Ac3相变点的温度之后的时间x(秒)。 根据计算出的时间x,控制从钢管的外表面温度到开始快速冷却所需的时间t(秒),使得时间t在0(秒)
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