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1.发明申请公开(公告)号：US20040261915A1
公开(公告)日：2004-12-30
申请号：US10889956
申请日：2004-07-13
IPC分类号： C21D001/00
CPC分类号： C22C38/001 , C21C5/005 , C21C7/06 , C22C38/42 , C22C38/58
摘要： A new austenitic stainless steel containing approximately 0.1-1.0 mass % of Si and not more than approximately 0.003 mass % of Al. Nonmetallic inclusions dispersed in a steel matrix are converted to MnOnullSiO2nullAl2O3 containing not less than approximately 15 mass % of SiO2 and not more than approximately 40 mass % of Al2O3. During steel making, molten steel is covered with basic slag and heavily deoxidized with a Si alloy whose Al content is controlled to not more than approximately 1.0 mass % in a vacuum or non-oxidizing atmosphere. The austenitic stainless steel sheet can be formed to an objective shape without the occurrence of cracking due to its decrease in susceptibility to cracking and its good formability.
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公开(公告)号：US20030102058A1
公开(公告)日：2003-06-05
申请号：US10120727
申请日：2002-04-11
发明人： Hanji Ishikawa , Masato Otsuka , Satoshi Suzuki , Hideki Tanaka , Junichi Katsuki , Takashi Yamauchi , Naoto Hiramatsu
IPC分类号： C22C038/44
CPC分类号： C22C38/004 , C21D8/04 , C21D8/0405 , C21D8/0463 , C21D8/0473 , C22C38/001 , C22C38/42 , C22C38/44 , C22C38/58
摘要： A new soft stainless steel sheet has an austenite-stability index Md30 controlled in a range of null120 to null10 and a stacking fault formability index SFI controlled not less than 30, and involves precipitates whose Cu concentration is controlled not more than 1.0%, so as to maintain concentration of dissolved Cu at 1-5%. The stainless steel sheet preferably contains up to 0.06%(CnullN), up to 2.0% Si, up to 5% Mn, 15-20% Cr, 5-9% Ni, 1.0-4.0% Cu, up to 0.003% Al, up to 0.005% S, and optionally one or more of up to 0.5% Y, up to 0.5% Nb, up to 0.5% Zr, up to 0.5% V, up to 3.0% Mo, up to 0.03% B, up to 0.02% REM (rare earth metals) and up to 0.03% Ca. The stainless steel sheet can be plastically deformed to an objective shape without any cracks even at a part heavily-worked part by multi-stage deep drawing or compression deforming. Md30(null C.)null551null462(CnullN)null9.2Sinull8.1Mnnull29(NinullCu)null13.7Crnull18.5Mo SFI(mJ/m2)null2.2Ninull6Cunull1.1Crnull13Sinull1.2Mnnull32
摘要翻译： 新的软质不锈钢板的奥氏体稳定指数Md30控制在-120〜-10的范围内，堆积层错性成形性指数SFI控制在30以上，并且将Cu浓度控制在1.0％以下的析出物， 以使溶解的Cu的浓度保持在1-5％。 不锈钢板优选含有高达0.06％（C + N），至多2.0％Si，至多5％Mn，15-20％Cr，5-9％Ni，1.0-4.0％Cu，至多0.003％ Al，至多0.005％的S，以及任选的一种或多种至多0.5％的Y，至多0.5％的Nb，至多0.5％的Zr，至多0.5％V，至多3.0％的Mo，至多0.03％的B， 高达0.02％的REM（稀土金属）和高达0.03％的Ca。 不锈钢板可以通过多级深冲压或压缩变形而塑造变形为客观形状，也不会在部分重型加工部分产生任何裂缝。 Md30（℃）= 551-462（C + N）-9.2Si-8.1Mn-29（Ni + Cu）-13.7Cr-18.5Mo SFI（mJ / m2）= 2.2Ni + 6Cu-1.1Cr-13Si -1.2Mn + 32
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公开(公告)号：US20030062511A1
公开(公告)日：2003-04-03
申请号：US10108039
申请日：2002-03-27
IPC分类号： H01C001/00 , H01B001/02 , H01B001/04 , H01B001/06
摘要： An electric resistance material comprises an FenullCrnullNi alloy having composition of C up to 0.1%, Si up to 5%, Mn up to 6%, 9-32% Cr, 6-25% Ni, N up to 0.2%, 0-3% Mo, 0-4% Cu, 0-5% Al, 0-0.4% Ti, 0-0.4% Nb, 0-0.005% B and the balance being substantially Fe with the previsions that the value A defined by the formula (1) and the value B defined by the formula (2) are not less than 78 and not less than 14, respectively. The electric resistance material is high of resistivity with less temperature dependency, and a resistor made therefrom works well without noises during flow of electricity. 1 A = 0.008 null ( % null null null Cr ) 3 - 0.43 null ( % null null null Cr ) 2 + 8.03 null ( % null null null Cr ) + 6.8 null ( % null null null Si ) + 10.9 null ( % null null null Al ) + 0.56 null ( % null null null Mo ) + 0.92 null ( % null null null Ni ) ( 1 ) B = ( % null null null Ni ) + ( % null null null Cu ) + 0.6 null ( % null null null Mn ) + 9.69 null ( % null null null C + % null null null N ) + 0.18 null ( % null null null Cr ) - 0.11 null ( % null null null Si ) 2 ( 2 )
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4.发明申请公开(公告)号：US20020127131A1
公开(公告)日：2002-09-12
申请号：US10041115
申请日：2002-01-08
IPC分类号： C22C038/18 , C21D001/54
CPC分类号： C22C38/001 , C21C5/005 , C21C7/06 , C22C38/42 , C22C38/58
摘要： A new austenitic stainless steel contains 0.1-1.0 mass % of Si and not more than 0.003 mass % of Al. Nonmetallic inclusion dispersed in a steel matrix is converted to MnOnullSiO2nullAl2O3 containing not less than 15 mass % of SiO2 and not more than 40 mass % of Al2O3. During steel making, molten steel is covered with basic slag and strongly deoxidized with a Si alloy whose Al content is controlled not more than 1.0 mass % in a vacuum or non-oxidizing atmosphere. The austenitic stainless steel sheet can be formed to an objective shape without occurrence of cracking due to its less crack-sensitivity and good formability.
摘要翻译： 新的奥氏体不锈钢含有0.1-1.0质量％的Si和不大于0.003质量％的Al。 分散在钢基体中的非金属夹杂物转化成含有不小于15质量％的SiO 2和不多于40质量％的Al 2 O 3的MnO-SiO 2 -Al 2 O 3。 在炼钢过程中，钢水用碱性炉渣覆盖，在真空或非氧化性气氛中Al含量控制在1.0质量％以下的Si合金强力脱氧。 奥氏体不锈钢板可以形成为目标形状，而不会由于其较小的裂纹敏感性和良好的成形性而发生开裂。
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公开(公告)号：US20020108680A1
公开(公告)日：2002-08-15
申请号：US09996649
申请日：2001-11-28
IPC分类号： C22C038/22 , C22C038/26 , C22C038/28
摘要： A newly proposed steel consists of 8.0-35.0 wt. % Cr, 0.05-1.20 wt. % C, 0.05-3.0 wt. % at least one of Ti, Nb, Zr, V and W and the balance being essentially Fe and has the structure that a total amount of Ti, Nb, Zr V and/or W carbide precipitations distributed in a steel matrix is adjusted to 0.1 wt. % or more. The steel is bestowed with excellent abrasion-resistance by distribution of carbide precipitations. These carbides have nearly the same hardness as hard particles such as alumina and silicon carbides which causes abrasive abrasion. Due to such excellent abrasion-resistance, a weaving machine member, a sewing needle, an agricultural machine member such as a mowing tooth or a cutter blade made of the steel can be used over a long period.
摘要翻译： 新提出的钢包括8.0-35.0wt。 ％Cr，0.05-1.20wt。 ％C，0.05-3.0重量％ ％中的至少一种Ti，Nb，Zr，V和W，余量基本上为Fe，并且具有将分布在钢基体中的Ti，Nb，Zr V和/或W碳化物析出物的总量调节至0.1 重量 ％ 或者更多。 钢通过碳化物沉淀物的分布赋予优异的耐磨性。 这些碳化物具有与硬质颗粒（例如氧化铝和碳化硅）几乎相同的硬度，这导致研磨磨损。 由于这种优异的耐磨性，可以长时间使用织造机构，缝纫针，割草机等农业机械部件或由钢制成的切割刀片。
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公开(公告)号：US20020104586A1
公开(公告)日：2002-08-08
申请号：US09997386
申请日：2001-11-29
IPC分类号： H01F001/147
CPC分类号： C22C38/18 , C21D6/002 , C21D8/1272 , C21D2211/005 , H01F1/147
摘要： A newly proposed Fe-Cr soft magnetic material has electric resistivity not less than 50 nullnullnullcm and a metallurgical structure occupied by a ferrite phase at a surface ratio of 95% or more. A number of fine precipitated of 1 nullm or less in particle size is controlled at a ratio not more than 6null105/mm2. The Fe-Cr alloy has the composition of C up to 0.05%, N up to 0.05%, Si up to 3.0%, Mn up to 1.0%, P up to 0.04%, S up to 1.0%, 5.0-20.0% Cr, Al up to 4.0%, 0-3% Mo, 0-0.5% Ti and the balance being essentially Fe under the conditions of (1) and (2). The Fe-Cr soft magnetic material is useful as a core, a yoke or the like installed in various types of magnetic sensors such as electric power steering, fuel injection systems for vehicles and A.C magnetic circuits of solenoid valves, due to production of great magnetic induction in a high-frequency low-magnetic field. 4.3null%Crnull19.1null%Sinull15.1null%Alnull2.5null%Monull40.2nullnull(1) 64null%Sinull35null%Crnull480null%Tinull25null%Monull490null%Alnull221null%Cnull247null%Nnull40null%Mnnull80null%Ninull460nullnull(2)
摘要翻译： 新提出的Fe-Cr软磁材料的电阻率不小于50μΩ·cm，并且以95％以上的表面比例由铁素体相占据的冶金结构。 以1×10 5 / mm 2以下的比例控制1μm以下的细粒度的微细析出。 Fe-Cr合金的组成为C：0.05％以下，N：0.05％以下，Si：3.0％以下，Mn：1.0％以下，P：0.04％以下，S：1.0％以下，5.0〜20.0质量％ ，在（1）和（2）的条件下，Al高达4.0％，0-3％Mo，0-0.5％Ti，余量基本上为Fe。 Fe-Cr软磁性材料可用作安装在诸如电动助力转向器，用于车辆的燃料喷射系统和电磁阀的AC磁路的各种类型的磁传感器中的磁芯，磁轭等， 在高频低磁场中感应。 <段落lvl =“0”>
4.3x％Cr + 19.1x％Si + 15.1x％Al + 2.5x％Mo> = 40.2（1） <段落 lvl =“0”> 64x％Si + 35x％Cr + 480x％Ti + 25x％Mo + 490x％Al> = 221x％C + 247x％N + 40x％Mn + 80x％Ni + 460（2）
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