公开(公告)号：US07846274B2

公开(公告)日：2010-12-07

申请号：US10948581

申请日：2004-09-24

Applicant: Kunio Kondo ,  Miyuki Yamamoto ,  Takashi Takano ,  Kenichi Beppu ,  Susumu Hirano ,  Keisuke Hitoshio ,  Hidetoshi Kurata

Inventor： Kunio Kondo ,  Miyuki Yamamoto ,  Takashi Takano ,  Kenichi Beppu ,  Susumu Hirano ,  Keisuke Hitoshio ,  Hidetoshi Kurata

IPC: C22C38/18

CPC classification number: C22C38/40 ,  B60R21/268 ,  C21D1/18 ,  C21D8/10 ,  C21D9/08 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/42 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58

Abstract: In order to manufacture a steel pipe for an air bag which can cope with increase in the pressure of gas blown into an air bag and decreases in the wall thickness of an accumulator, a steel having a composition, mass %, of: C: 0.05-0.20%, Si: 0.1-1.0%, Mn: 0.20-2.0%, P: at most 0.025%, S: at most 0.010%, Cr: 0.05-1.0%, Al: at most 0.10%, if necessary at least one of Mo: at most 0.50%, Ni: at most 1.5%, Cu: at most 0.5%, V: at most 0.2%, Ti: at most 0.1%, Nb: at most 0.1%, and B: at most 0.005%, and also if necessary, at least one of Ca: at most 0.01%, Mg: at most 0.01%, and REM (rare earth elements): at most 0.01%, and a remainder of Fe and impurities is used to produce a steel pipe, and the pipe is then subjected to cold working to predetermined dimensions, then to heating to a temperature of at least the Ac1 transformation temperature followed by quenching, and then to tempering at a temperature no higher than the Ac1 transformation temperature.

Abstract translation: 为了制造气囊用钢管，能够应对气泡吹入的气体的压力增加，蓄压器的壁厚减小，组成质量％为C：0.05的钢 -0.20％，Si：0.1〜1.0％，Mn：0.20〜2.0％，P：0.025％以下，S：0.0％以下，Cr：0.05〜1.0％，Al：0.10％ Mo：0.50以下，Ni：1.5％以下，Cu：0.5％以下，V：0.2％以下，Ti：0.1％以下，Nb：0.1％以下，B：0.005以下 ％，根据需要，还可以使用Ca：0.01％以下，Mg：0.01％以下，REM（稀土元素）：0.01％以下，Fe和杂质余量中的至少一种， 然后将管冷却至预定尺寸，然后加热至至少Ac1相变温度，然后淬火，然后在不高于Ac1转变温度的温度下回火。

公开(公告)号：US20050039826A1

公开(公告)日：2005-02-24

申请号：US10948581

申请日：2004-09-24

Applicant: Kunio Kondo ,  Miyuki Yamamoto ,  Takashi Takano ,  Kenichi Beppu ,  Susumu Hirano ,  Keisuke Hitoshio ,  Hidetoshi Kurata

Inventor： Kunio Kondo ,  Miyuki Yamamoto ,  Takashi Takano ,  Kenichi Beppu ,  Susumu Hirano ,  Keisuke Hitoshio ,  Hidetoshi Kurata

IPC: B60R21/268 ,  C21D1/18 ,  C21D8/10 ,  C21D9/08 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/40 ,  C22C38/42 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58 ,  C22C38/44

CPC classification number: C22C38/40 ,  B60R21/268 ,  C21D1/18 ,  C21D8/10 ,  C21D9/08 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/42 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58

Abstract: In order to manufacture a steel pipe for an air bag which can cope with increase in the pressure of gas blown into an air bag and decreases in the wall thickness of an accumulator, a steel having a composition, mass %, of: C: 0.05-0.20%, Si: 0.1-1.0%, Mn: 0.20-2.0%, P: at most 0.025%, S: at most 0.010%, Cr: 0.05-1.0%, Al: at most 0.10%, if necessary at least one of Mo: at most 0.50%, Ni: at most 1.5%, Cu: at most 0.5%, V: at most 0.2%, Ti: at most 0.1%, Nb: at most 0.1%, and B: at most 0.005%, and also if necessary, at least one of Ca: at most 0.01%, Mg: at most 0.01%, and REM (rare earth elements): at most 0.01%, and a remainder of Fe and impurities is used to produce a steel pipe, and the pipe is then subjected to cold working to predetermined dimensions, then to heating to a temperature of at least the Ac1 transformation temperature followed by quenching, and then to tempering at a temperature no higher than the Ac1 transformation temperature.

Abstract translation: 为了制造气囊用钢管，能够应对气泡吹入的气体的压力增加，蓄压器的壁厚减小，组成质量％为C：0.05的钢 -0.20％，Si：0.1〜1.0％，Mn：0.20〜2.0％，P：0.025％以下，S：0.0％以下，Cr：0.05〜1.0％，Al：0.10％ Mo：0.50以下，Ni：1.5％以下，Cu：0.5％以下，V：0.2％以下，Ti：0.1％以下，Nb：0.1％以下，B：0.005以下 ％，根据需要，还可以使用Ca：0.01％以下，Mg：0.01％以下，REM（稀土元素）：0.01％以下，Fe和杂质余量中的至少一种， 然后将管冷却至预定尺寸，然后加热至至少Ac1相变温度，然后淬火，然后在不高于Ac1转变温度的温度下回火。