公开(公告)号：US06773519B2

公开(公告)日：2004-08-10

申请号：US10309221

申请日：2002-12-04

申请人： Akitsugu Fujita ,  Masatomo Kamada

发明人： Akitsugu Fujita ,  Masatomo Kamada

IPC分类号： C22C3844

CPC分类号： C22C38/48 ,  C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/52 ,  F01D5/28

摘要： In CrMoV based heat resistant steels and tungsten-containing CrMoV based heat resistant steels, trace impurities, such as phosphorus, sulfur, copper, aluminum, arsenic, tin, and antimony are reduced lower than a specific level. Furthermore, alloy steels having increased creep strengths in a creep test on an unnotched test piece by addition of trace impurities such as cobalt, niobium, tantalum, nitrogen, boron, or the like is used. The production process therefor includes heating a turbine rotor member having the specific composition at a temperature between 980° C. and 1100° C. at a part corresponding to the high-pressure part thereof and at a temperature between 850° C. and 980° C. at a part corresponding to the low-pressure part thereof, and cooling the turbine rotor member at a cooling rate higher than an air impact cooling rate at the part corresponding to the high-pressure part thereof, and at a cooling rate no lower than an oil quenching rate at the part corresponding to the low-pressure part thereof. The rotor member has a creep rupture time in a creep test on a notched test piece of 10000 hours or longer.

摘要翻译： 在基于CrMoV的耐热钢和含钨CrMoV耐热钢中，微量杂质如磷，硫，铜，铝，砷，锡和锑比特定水平低。 此外，使用通过添加痕量杂质如钴，铌，钽，氮，硼等在无缺口试验片上的蠕变试验中具有增加的蠕变强度的合金钢。 其制造方法包括在对应于其高压部分的部分和在850℃和980℃之间的温度下，在980℃和1100℃之间的温度下加热具有特定组成的涡轮转子部件 在与其低压部分相对应的部分处，以相对于其高压部分的部分的空气冲击冷却速度高的冷却速度来冷却涡轮机转子部件，并且以不低于 比对应于其低压部分的部分的油淬火速度高。 转子部件在10000小时以上的缺口试验片上的蠕变试验中具有蠕变断裂时间。

公开(公告)号：US06699333B1

公开(公告)日：2004-03-02

申请号：US09720927

申请日：2001-02-26

申请人： Philippe Dubois

发明人： Philippe Dubois

IPC分类号： C22C3844

CPC分类号： C22C38/44 ,  C21D1/18 ,  C21D1/28 ,  C21D6/004 ,  C22C38/46 ,  C23C8/22 ,  F02M61/166

摘要： The invention discloses a carburizing steel composition comprising, by weight: 0.06% to 0.18% of C; 0.5% to 1.5% of Si; 0.2% to 1.5% of Cr; 1% to 3.5% of Ni; 1.1% to 3.5% of Mo; and, if appropriate: at most 1.6% of Mn; and/or at most 0.4% of V; and/or at most 2% of Cu; and/or at most 4% of Co; the complement being constituted by iron and residual impurities; the amounts of Ni, Mn, Cu, Co, Cr, Mo and V in said composition, expressed by weight, satisfying the following relationships: 2.5≦Ni+Mn+1.5Cu+0.5Co≦5  (1) 2.4≦Cr+Mo+V≦3.7  (2) and a process for producing carburized and treated parts produced from the compositions.

摘要翻译： 本发明公开了一种渗碳钢组合物，其含有：C：0.06〜0.18％，Si：0.5〜1.5％，Cr：0.2〜1.5％，Ni：1〜3.5％，Ni：1.1〜3.5％ Mo;如果合适，最多为1.6％的Mn; 和/或最大0.4％的V; 和/或最多2％的Cu; 和/或最多4％的Co;补体由铁和残余杂质构成;所述组合物中的Ni，Mn，Cu，Co，Cr，Mo和V的量以重量表示，满足以下关系：和 用于生产由组合物制备的渗碳和处理部件的方法。

公开(公告)号：US06248292B1

公开(公告)日：2001-06-19

申请号：US09256296

申请日：1999-02-24

申请人： Kimihiko Ando ,  Akio Yasuda ,  Akira Manabe ,  Eiji Ito

发明人： Kimihiko Ando ,  Akio Yasuda ,  Akira Manabe ,  Eiji Ito

IPC分类号： C22C3844

CPC分类号： F01L3/04 ,  B23K35/3093 ,  B23K35/32 ,  C22C1/045 ,  C22C27/04 ,  C22C33/0285 ,  C22C38/04 ,  C22C38/08 ,  C22C38/52

摘要： An overlaying alloy containing no Cr or a reduced amount of Cr, in which an effective amount of Mo oxide is formed even in a weak oxidizing atmosphere such as a combustion atmosphere of diesel engines and engines using CNG, LPG or other gases as a fuel to provide an improved non-damaging property and wear resistance. An overlaying alloy comprising 20-70 wt % Mo, 0.5-3 wt % C, 5-40 wt % Ni, and the balance being Fe and unavoidable impurities, which contains no Cr to facilitate formation of Mo oxide and is advantageously applied to the parts on which an oxide coating is not easily formed such as the engine parts subject to a lower temperature combustion atmosphere. An overlaying alloy comprising 20-60 wt % Mo, 0.2-3 wt % C, 5-40 wt % Ni, 0.1-10 wt % Cr, and the balance of Fe and unavoidable impurities, which contains a small amount of Cr to control formation of Mo oxide and is advantageously applied to the parts on which an oxide coating is relatively easily formed. Other alloying elements such as Mn, Co, Si, Nb may be added in the alloy in accordance with need.

摘要翻译： 即使在诸如使用CNG，LPG或其他气体作为燃料的柴油发动机和发动机的燃烧气氛的弱氧化气氛中也形成有效量的Mo氧化物的不含Cr或减少量的Cr的覆盖合金， 提供改进的非破坏性和耐磨性。 包含20-70重量％的Mo，0.5-3重量％的C，5-40重量％的Ni，余量是Fe和不可避免的杂质的叠层合金，其不含Cr以促进Mo氧化物的形成，并且有利地应用于 不容易形成氧化物涂层的部件，例如受到较低温度燃烧气氛的发动机部件。 包含20-60重量％Mo，0.2-3重量％C，5-40重量％Ni，0.1-10重量％Cr，余量为Fe和不可避免的杂质，其含有少量的Cr以控制 形成Mo氧化物，并且有利地施加到氧化物涂层相对容易形成的部分上。 可以根据需要在合金中添加Mn，Co，Si，Nb等其他合金元素。

公开(公告)号：US06786981B2

公开(公告)日：2004-09-07

申请号：US10016543

申请日：2001-12-11

申请人： Yoshihiro Yazawa ,  Mineo Muraki ,  Yoshihiro Ozaki ,  Kunio Fukuda ,  Atushi Miyazaki ,  Yasushi Katoh

发明人： Yoshihiro Yazawa ,  Mineo Muraki ,  Yoshihiro Ozaki ,  Kunio Fukuda ,  Atushi Miyazaki ,  Yasushi Katoh

IPC分类号： C22C3844

CPC分类号： C22C38/48 ,  C10M105/24 ,  C10M107/04 ,  C10M107/28 ,  C10M111/04 ,  C10M2205/0225 ,  C10M2207/1253 ,  C10M2209/0845 ,  C10N2210/02 ,  C10N2250/14 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0278 ,  C22C38/001 ,  C22C38/004 ,  C22C38/44 ,  C22C38/46 ,  C22C38/50

摘要： A ferritic stainless steel sheet for fuel tanks and fuel pipes comprises, by mass percent, about 0.1% or less of C; about 1.0% or less of Si; about 1.5% or less of Mn; about 0.06% or less of P; about 0.03% or less of S; about 1.0% or less of Al; about 11% to about 20% Cr; about 2.0% or less of Ni; about 0.5% to about 3.0% Mo; about 0.02% to about 1.0% V; about 0.04% or less of N; at least one of about 0.01% to about 0.8% Nb and about 0.01% to about 1.0% Ti; and the balance being Fe and incidental impurities. The ferritic stainless steel sheet is produced by rough-rolling a slab having the above composition; hot-rolling the rough-rolled sheet under a linear pressure of at least about 3.5 MN/m at a final pass in the finish rolling; cold-rolling the hot-rolled sheet at a gross reduction rate of at least about 75%; and annealing the cold-rolled sheet. The cold-rolling step includes one rolling stage or at least two rolling stages including intermediate annealing.

摘要翻译： 用于燃料箱和燃料管的铁素体不锈钢板以质量％计含有C的约0.1％以下; 约1.0％以下的Si; 约1.5％以下的Mn; 约0.06％以下的P; 约0.03％以下的S; 约1.0％以下的Al; 约11％至约20％的Cr; 约2.0％以下的Ni; 约0.5％至约3.0％的Mo; 约0.02％至约1.0％V; 约0.04％以下的N; 约0.01％至约0.8％的Nb和约0.01％至约1.0％的Ti中的至少一种; 余量为Fe和杂质。 铁素体不锈钢板通过粗轧具有上述组成的板坯来制造; 在最终轧制过程中，在至少约3.5MN / m的线压力下热轧粗轧板; 以大约75％的总减速率冷轧热轧板; 并对冷轧板退火。 冷轧步骤包括一个轧制阶段或至少两个包括中间退火的轧制阶段。

公开(公告)号：US06689231B1

公开(公告)日：2004-02-10

申请号：US09598241

申请日：2000-06-21

申请人： Pasi Kangas

发明人： Pasi Kangas

IPC分类号： C22C3844

CPC分类号： C21D8/105 ,  C22C38/44 ,  F16L9/19

摘要： The invention relates to a ferrite-austenitic alloy and its use, the alloy has a composition with a mixture defined as: C maximum 0.05%, Si maximum 0.8%, Mn 0.30-1.5%, Cr 28.0-30.0%, Ni 5.80-7.40%, Mo 2.00-2.50%, N 0.30-0.40%, Cu maximum 1.0%, W maximum 2.0%, S maximum 0.010%, 30-70% ferrite and the balance austenite for tubes filled with hydraulic fluid, as transport tubes for solutions for chemical injection, or another uses in the application of umbilicals.

摘要翻译： 本发明涉及一种铁素体 - 奥氏体合金及其用途，该合金的组成为：C最大0.05％，Si最大0.8％，Mn 0.30-1.5％，Cr 28.0-30.0％，Ni 5.80-7.40 ％，Mo 2.00-2.50％，N 0.30-0.40％，Cu最大1.0％，W最大2.0％，S最大0.010％，铁素体30-70％，填充液压油的管的平衡奥氏体作为溶液的输送管 用于化学注射，或用于脐带的另一种用途。

公开(公告)号：US06521056B2

公开(公告)日：2003-02-18

申请号：US09911538

申请日：2001-07-25

申请人： Mineo Muraki ,  Junichiro Hirasawa ,  Atsushi Miyazaki ,  Susumu Satoh

发明人： Mineo Muraki ,  Junichiro Hirasawa ,  Atsushi Miyazaki ,  Susumu Satoh

IPC分类号： C22C3844

CPC分类号： C21D8/0205 ,  C21D8/0226 ,  C21D8/0231 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0405 ,  C22C38/004 ,  C22C38/06 ,  C22C38/44 ,  C22C38/48

摘要： A ferritic stainless steel sheet which has not only superior high-temperature fatigue characteristics, but also superior workability at room temperatures. The steel sheet contains, by weight percent, C: not more than 0.02%, Si: 0.2 to 1.0%, Mn: not more than 1.5%, Cr: 11.0 to 20.0%, Ni: 0.05 to 2.0%, Mo: 1.0 to 2.0%, Al: not more than 1.0%, Nb: 0.2 to 0.8%, and N: not more than 0.02%, balance essentially Fe, and an aspect ratio (dRD/dTD) of grain size in planes at ¼ and ¾ sheet thickness, seen a direction normal to a sheet surface, in the range of 1.03 to 1.35. The steel sheet has a thickness greater than 0.3 mm but not greater than 2.5 mm, and a yield strength Y.S.≦360 MPa and an r-value≧1.3 at 30° C., and wherein after maintaining the steel sheet at 900° C. for one hour, the Y.S.≧18.0 MPa.

摘要翻译： 铁素体不锈钢板不仅具有优异的高温疲劳特性，而且在室温下也具有优异的加工性。 钢板以重量％计含有C：不大于0.02％，Si：0.2〜1.0％，Mn：1.5％以下，Cr：11.0〜20.0％，Ni：0.05〜2.0％，Mo：1.0〜 2.0％，Al：1.0％以下，Nb：0.2〜0.8％，N：0.02％以下，余量基本上为Fe，¼，¾片的平面的晶粒尺寸比（dRD / dTD） 看到与纸张表面垂直的方向的厚度在1.03至1.35的范围内。 在30℃下，钢板的厚度大于0.3mm但不大于2.5mm，屈服强度YS <= 360MPa，r值> 1.3，其中在将钢板维持在900° C.一小时，YS> = 18.0MPa。

公开(公告)号：US06368549B1

公开(公告)日：2002-04-09

申请号：US09485969

申请日：2000-05-10

申请人： Walter Bendick ,  Günter Schmitz ,  Siegfried Muller ,  Dieter Uwer

发明人： Walter Bendick ,  Günter Schmitz ,  Siegfried Muller ,  Dieter Uwer

IPC分类号： C22C3844

CPC分类号： C22C38/44 ,  C21D8/0205 ,  C22C38/46

摘要： Disclosed is a metallurgical vessel, in particular a converter for treating liquid molten metals, in particular steel, formed of a refractory lining and a supporting metal shell that surrounds the refractory lining. The vessel is composed of welded together shell rings and dished parts of creep-resistant steel with plate thicknesses of up to 100 mm. The creep-resistant steel used is a highly resistant, water-quenched and then tempered close-grained structural steel with the following composition in wt.-% C 0.14-0.22 Cr 0.4-1.0 Mo 0.3-0.8 Ni 1.5-3.0 V 0.05-0.12 Mn 0.7-1.3 Pmax 0.015 Smax 0.003 Al 0.015-0.065 Si 0.20-0.60 Cumax 0.15 Nmax 0.012 Camax 0.004 the remainder being iron and impurities due to the production process.

摘要翻译： 公开了一种冶金容器，特别是用于处理液体熔融金属，特别是钢的转炉，其由耐火衬里和围绕耐火衬里的支撑金属壳形成。 该容器由焊接在一起的外壳环和耐磨钢板的碟形部件组成，板厚度可达100mm。 所用的抗蠕变钢是一种高度耐水，水淬和随后回火的紧密结晶钢，其重量％C-0.14-0.22Cr 0.4-1.0Mo 0.3-0.8Ni 1.5-3.0V 0.05- 0.12Mn 0.7-1.3Pmax 0.015Smax 0.003Al 0.015-0.065Si 0.20-0.60Cumax 0.15Nmax 0.012Camax 0.004剩余部分由于生产工艺而是铁和杂质。

公开(公告)号：US06749697B2

公开(公告)日：2004-06-15

申请号：US09796442

申请日：2001-03-02

申请人： Örjan Bergström ,  Pasi Kangas ,  Mattias Klockars ,  Guocai Chai

发明人： Örjan Bergström ,  Pasi Kangas ,  Mattias Klockars ,  Guocai Chai

IPC分类号： C22C3844

CPC分类号： C22C38/44 ,  C22C38/58

摘要： The present invention relates to a duplex stainless steel alloy with austenite-ferrite structure, which in hot extruded and annealed finish shows high strength, good corrosion resistance, as well as good weldability which is characterized in that the alloy contains in weight-% max 0.05% C, 0-2.0% Si 0-3.0% Mn, 25-35% Cr, 4-10% Ni, 2-6% Mo, 0.3-0.6% N, as well as Fe and normally occurring impurities and additions, whereby the content of ferrite is 30-70%.

摘要翻译： 本发明涉及一种具有奥氏体 - 铁素体结构的双相不锈钢合金，其在热挤压和退火处理中表现出高强度，良好的耐腐蚀性以及良好的可焊性，其特征在于该合金的重量％最大0.05 ％C，0-2.0％Si 0-3.0％Mn，25-35％Cr，4-10％Ni，2-6％Mo，0.3-0.6％N，以及Fe和通常存在的杂质和添加物，其中 铁素体含量为30-70％。

公开(公告)号：US06740174B2

公开(公告)日：2004-05-25

申请号：US09987327

申请日：2001-11-14

申请人： Atsushi Miyazaki ,  Junichiro Hirasawa ,  Mineo Muraki ,  Yoshihiro Yazawa ,  Osamu Furukimi

发明人： Atsushi Miyazaki ,  Junichiro Hirasawa ,  Mineo Muraki ,  Yoshihiro Yazawa ,  Osamu Furukimi

IPC分类号： C22C3844

CPC分类号： C22C38/48 ,  C21D6/004 ,  C21D6/02 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/44 ,  C22C38/46

摘要： The soft Cr-containing steel includes, on a % by mass basis, C: from about 0.001% to about 0.020%, Si: more than about 0.10% and less than about 0.50%, Mn: less than about 2.00%, P: less than about 0.060%, S: less than about 0.008%, Cr: from about 12.0% to about 16.0%, Ni: from about 0.05% to about 1.00%, N: less than about 0.020%, Nb: from about 10×(C+N) to about 1.00%, Mo: more than about 0.80% and less than about 3.00%, wherein the contents of alloying elements, represented by Si and Mo, respectively, on a % by mass, satisfy the formula Si ≦1.2−0.4 Mo, so as to prevent precipitation of the Laves phase and to stably secure an effect of increasing high-temperature strength due to solid solution Mo.

摘要翻译： 含有软Cr的钢包括以质量％计，C：约0.001％至约0.020％，Si：大于约0.10％且小于约0.50％，Mn：小于约2.00％，P： 小于约0.060％，S：小于约0.008％，Cr：约12.0％至约16.0％，Ni：约0.05％至约1.00％，N：小于约0.020％，Nb：约10x C + N）至约1.00％，Mo：大于约0.80％且小于约3.00％，其中由Si和Mo表示的合金元素的含量分别为质量％满足式Si < 1.2-0.4 Mo，以防止Laves相沉淀，并稳定地确保由于固溶Mo而使高温强度提高的效果。

公开(公告)号：US06685881B2

公开(公告)日：2004-02-03

申请号：US09956108

申请日：2001-09-20

申请人： Shuji Hamano ,  Michio Okabe

发明人： Shuji Hamano ,  Michio Okabe

IPC分类号： C22C3844

CPC分类号： C22C38/44 ,  C22C38/001 ,  C22C38/48 ,  C22C38/52 ,  C22C38/60

摘要： Disclosed is an austenitic stainless cast steel which has such a good heat resistance as can be used at a high temperature higher than 950° C. and a good machinability. The stainless cast steel consists essentially of, by weight %, C: 0.2-0.4%, Si: 0.5-2.0%, Mn: 0.5-2.0%, P: up to 0.10%, S: 0.04-0.2%, Ni: 8.0-42.0%, Cr: 15.0-28.0%, W: 0.5-7.0%, Nb: 0.5-2.0%, Al: up to 0.02%, Ti: up to 0.05%, N: up to 0.15%, Se: 0.001-0.50% and the balance of Fe and inevitable impurities.

摘要翻译： 公开了一种奥氏体不锈钢铸钢，其具有如在高于950℃的高温下可使用的良好的耐热性和良好的机械加工性。 不锈铸钢基本上由重量％C：0.2-0.4％，Si：0.5-2.0％，Mn：0.5-2.0％，P：至多0.10％，S：0.04-0.2％，Ni：8.0 -42.0％，Cr：15.0〜28.0％，W：0.5〜7.0％，Nb：0.5〜2.0％，Al：0.02％以下，Ti：0.05％以下，N：0.15％以下，Se： 0.50％，余量为Fe和不可避免的杂质。