-
1.
公开(公告)号:US07338630B2
公开(公告)日:2008-03-04
申请号:US10963492
申请日:2004-10-11
申请人: Takashi Kano , Yasuhiro Hazama , Junya Asaoka , Masaki Shimizu , Katsumi Mori , Hisashi Endo
发明人: Takashi Kano , Yasuhiro Hazama , Junya Asaoka , Masaki Shimizu , Katsumi Mori , Hisashi Endo
CPC分类号: C22C38/22 , C22C38/02 , C22C38/04 , F02M55/025 , F02M61/168 , F02M2200/8069
摘要: The present invention is to provide a free-cutting steel capable of suppressing production of coarse inclusions, and having a high fatigue strength and a desirable machinability. The free-cutting steel aimed at solving the foregoing problems consists essentially of, in % by mass, C: 0.1-0.5%, Si: 0.05-2.5%, Mn: 0.1-3.5%, S: 0.0005-0.004%, Al: 0.01-0.06%, Ti: 0.003-0.01%, O: up to 0.0015%, N: 0.003-0.01%, Bi: 0.015-0.025%, and the balance of Fe and inevitable impurities, wherein the formula (1) below is satisfied: −4.8≦log(([N]−0.0015)×[Ti]0.98)≦−4.3. formula (1)
摘要翻译: 本发明提供一种能够抑制粗大夹杂物的生产,并且具有高疲劳强度和期望的切削性能的自由切削钢。 旨在解决上述问题的自由切削钢基本上以质量%计含有C:0.1-0.5%,Si:0.05〜2.5%,Mn:0.1-3.5%,S:0.0005〜0.004%,Al: 0.01-0.06%,Ti:0.003-0.01%,O:至多0.0015%,N:0.003-0.01%,Bi:0.015-0.025%,余量为Fe和不可避免的杂质,其中下式(1) 满足:<?in-line-formula description =“In-line formula”end =“lead”?> - 4.8 <= LOG(([N] -0.0015)x [Ti] <0.98 sup> <= - 4.3。 公式(1)<?in-line-formula description =“In-line Formulas”end =“tail”?>
-
2.
公开(公告)号:US20050089437A1
公开(公告)日:2005-04-28
申请号:US10963492
申请日:2004-10-11
申请人: Takashi Kano , Yasuhiro Hazama , Junya Asaoka , Masaki Shimizu , Katsumi Mori , Hisashi Endo
发明人: Takashi Kano , Yasuhiro Hazama , Junya Asaoka , Masaki Shimizu , Katsumi Mori , Hisashi Endo
CPC分类号: C22C38/22 , C22C38/02 , C22C38/04 , F02M55/025 , F02M61/168 , F02M2200/8069
摘要: The present invention is to provide a free-cutting steel capable of suppressing production of coarse inclusions, and having a high fatigue strength and a desirable machinability. The free-cutting steel aimed at solving the foregoing problems consists essentially of, in % by mass, C: 0.1-0.5%, Si: 0.05-2.5%, Mn: 0.1-3.5%, S: 0.0005-0.004%, Al: 0.01-0.06%, Ti: 0.003-0.01%, O: up to 0.0015%, N: 0.003-0.01%, Bi: 0.015-0.025%, and the balance of Fe and inevitable impurities, wherein the formula (1) below is satisfied: −4.8≦log(([N]−0.0015)×[Ti]0.98)≦−4.3 formula (1).
摘要翻译: 本发明提供一种能够抑制粗大夹杂物的生产,并且具有高疲劳强度和期望的切削性能的自由切削钢。 旨在解决上述问题的自由切削钢基本上以质量%计含有C:0.1-0.5%,Si:0.05〜2.5%,Mn:0.1-3.5%,S:0.0005〜0.004%,Al: 0.01-0.06%,Ti:0.003-0.01%,O:至多0.0015%,N:0.003-0.01%,Bi:0.015-0.025%,余量为Fe和不可避免的杂质,其中下式(1) 满足:<?in-line-formula description =“In-line formula”end =“lead”?> - 4.8 <= LOG(([N] -0.0015)x [Ti] <0.98 sup> <= - 4.3公式(1)。<?in-line-formula description =“In-line Formulas”end =“tail”?>
-