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1. 发明授权

US06565678B2 Weld metals with superior low temperature toughness for joining high strength, low alloy steels 有权
公开(公告)号：US06565678B2
公开(公告)日：2003-05-20
申请号：US09920894
申请日：2001-08-02
申请人： Douglas P. Fairchild , Jayoung Koo , Narasimha-Rao V. Bangaru , Mario Luis Macia , Danny Lee Beeson , Adnan Ozekcin
发明人： Douglas P. Fairchild , Jayoung Koo , Narasimha-Rao V. Bangaru , Mario Luis Macia , Danny Lee Beeson , Adnan Ozekcin
IPC分类号： C22C3808
CPC分类号： C22C38/02 , B23K35/3066 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/58
摘要： Weld metals suitable for joining high strength, low alloy steels are provided. These weld metals have microstructures of acicular ferrite interspersed in a hard constituent, such as lath martensite, yield strengths of at least about 690 MPa (100 ksi), and DBTTs lower than about −50° C. (−58° F.) as measured by a Charpy energy versus temperature curve. These weld metals include about 0.04 wt % to about 0.08 wt % carbon; about 1.0 wt % to about 2.0 wt % manganese; about 0.2 wt % to about 0.7 wt % silicon; about 0.30 wt % to 0.80 wt % molybdenum; about 2.3 wt % to about 3.5 wt % nickel; about 0.0175 wt % to about 0.0400 wt % oxygen, and at least one additive selected from the group consisting of (i) up to about 0.04 wt % zirconium, and (ii) up to about 0.02 wt % titanium.

2. 发明授权

US06500281B2 Fe-Ni alloy material used for shadow mask having improved formability of through-holes by etching 失效
标题翻译：用于荫罩的Fe-Ni合金材料通过蚀刻具有改善的通孔成形性
公开(公告)号：US06500281B2
公开(公告)日：2002-12-31
申请号：US09905901
申请日：2001-07-17
申请人： Ikuya Kurosaki
发明人： Ikuya Kurosaki
IPC分类号： C22C3808
CPC分类号： C22C38/08 , H01J29/07 , H01J2229/0733
摘要： In the production or a shadow mask, the through-holes for passing an electron beam are formed by etching of the Fe—Ni alloy. The variation in diameter of apertures is prevented by dispersing 2000 or more of precipitates and inclusions from 0.01 &mgr;m to 5 &mgr;m in diameter on the surface of said material per mm2. The Fe—Ni alloy of from 34 to 38% of Ni, not more than 0.5% of Mn, and if necessary, from 5 to 40 ppm of B, and from 5 to 40 ppm of N, the balance being Fe and unavoidable and incidental impurities with the proviso of 0.10% or less of C, 0.30% or less of Si, 0.30% or less of Al, 0.005% or less of S, and 0.005% or less of P.
摘要翻译：在制造或荫罩中，通过蚀刻Fe-Ni合金形成用于通过电子束的通孔。孔径的变化通过在2000mm 2的所述材料的表面上分散2000个或更多个沉淀物和夹杂物，直径从0.01μm至5μm的直径分散。 Ni的34〜38％，Mn不超过0.5％，必要时为5〜40ppm，N为5〜40ppm的Fe-Ni合金，Fe为不可避免的余量，附带的杂质为C：0.10％以下，Si：0.30％以下，Al：0.30％以下，S：0.005％以下，P：0.005％以下。

3. 发明授权

US06224824B1 Method of using alloy steel having superior corrosion resistance in corrosive environment containing molten salts containing alkali oxides 失效
标题翻译：在含碱性氧化物的熔盐的腐蚀环境中使用具有优良耐腐蚀性的合金钢的方法
公开(公告)号：US06224824B1
公开(公告)日：2001-05-01
申请号：US09465575
申请日：1999-12-17
申请人： Jun Shan Zhang , Young Joon Shin , Soo Haeng Cho , Hyun Soo Park
发明人： Jun Shan Zhang , Young Joon Shin , Soo Haeng Cho , Hyun Soo Park
IPC分类号： C22C3808
CPC分类号： C21D8/005 , C22C38/08 , C22C38/40
摘要： Disclosed is an alloy steel of high corrosion resistance to hot molten salts containing chlorides and/or alkali oxides. The alloy steel is manufactured from a composition comprising 20-40 weight % of Ni, 0-8 weight % of Cr, 0.05 weight % or less of C, 0.5 weight % or less of Si, 1.0 weight % or less of Mn, 0.05 weight % or less of S, and the balance of Fe to total weight. With a low Cr content, the alloy steel is superb in the corrosion resistance to chloride and/or alkali oxide-containing molten salts, including LiCl—Li2O. Also, the alloy steel shows stable corrosion resistance to molten salts even at high temperature as well as low temperature in addition to being superior to workability. Thus, the alloy steel can be processed into plates, bars or pipes which are used for structural materials and structural components for treating molten salts.
摘要翻译：公开了对含有氯化物和/或碱金属氧化物的热熔盐具有高耐腐蚀性的合金钢。该合金钢由以下组成制成，该组合物包含20-40重量％的Ni，0-8重量％的Cr，0.05重量％以下的C，0.5重量％以下的Si，1.0重量％以下的Mn，0.05 重量％以下的S，余量为Fe与总重量的比例。对于低Cr含量，合金钢对含氯化物和/或碱金属氧化物的熔融盐（包括LiCl-Li 2 O）的耐腐蚀性极佳。此外，即使在高温以及低温下，合金钢也显示出对熔融盐的耐腐蚀性，而且优于加工性。因此，合金钢可以加工成用于结构材料的板，棒或管，以及用于处理熔盐的结构部件。

4. 发明授权

US06605163B2 Process for manufacturing a strip made of an Fe-Ni alloy 失效
公开(公告)号：US06605163B2
公开(公告)日：2003-08-12
申请号：US09938504
申请日：2001-08-27
申请人： Ricardo Cozar , Jean-Pierre Reyal , Pierre Louis Reydet
发明人： Ricardo Cozar , Jean-Pierre Reyal , Pierre Louis Reydet
IPC分类号： C22C3808
CPC分类号： C21D8/0205 , C21D8/0236 , C21D8/0263 , C21D8/0273 , C22C38/06 , C22C38/08 , C22C38/14 , H01J2229/0733
摘要： Process for manufacturing a strip made of an Fe—Ni alloy of the “&ggr;′ and/or &ggr;″ structural hardening” type, the thermal expansion coefficient between 20° C. and 150° C. of which is less than 7×10−6/K, in which a hot strip is manufactured either by hot rolling a semi-finished product or by direct casting of a thin strip which is optionally lightly hot-rolled, and the hot strip is subjected to a softening annealing operation consisting of a soak between 950° C. and 1200° C. followed by rapid cooling and optionally a pickling operation, in order to obtain a softened strip; a cold-worked strip is manufactured by cold rolling the said softened strip, with a reduction ratio of greater than 5%; and the cold-worked strip is subjected to a recrystallization annealing operation in an inert or reducing atmosphere, carried out either on the run with a residence time between 900° C. and 1200° C. of between 30 s and 5 min, or statically with a soak at a temperature of between 900° C. and 1050° C. for a time of between 15 min to 5 h, followed by cooling down to a temperature below 500° C. at a cooling rate sufficient to prevent the formation of hardening precipitates. Strip made of an Fe—Ni alloy.

5. 发明授权

US06547893B1 Fe-Ni based material for shadow mask 失效
标题翻译：基于Fe-Ni的荫罩材料
公开(公告)号：US06547893B1
公开(公告)日：2003-04-15
申请号：US09926691
申请日：2001-12-04
申请人： Tatsuya Itoh , Tsutomu Omori
发明人： Tatsuya Itoh , Tsutomu Omori
IPC分类号： C22C3808
CPC分类号： C22C38/08 , C21D8/0205 , C21D8/0236 , C21D8/0268 , C21D8/0273 , C22C38/105 , H01J9/142 , H01J29/07 , H01J2229/0733
摘要： It is a Fe—Ni based shadow mask material of Fe—Ni alloy or Fe—Ni—Co alloy used as a material for a color television cathode tube or the like, and relates to a material wherein the material has a texture that an X-ray intensity ratio Ir of cubic orientation (100) to twinning orientation (221) thereof in a (111) pole figure is a range of 0.5-5:1 and segregation of Ni, Mn or the like is less, and a section cleanness defined according to JIS G0555 is made to be not more than 0.05% to reduce the occurrence of streak or mottling in the etching.
摘要翻译：作为用作彩色电视阴极管等的材料的Fe-Ni合金或Fe-Ni-Co合金的Fe-Ni基荫罩材料，涉及材料具有X （111）极图中的立方取向（100）<001>与孪晶取向（221）<212的射线强度比Ir为0.5-5:1的范围，Ni，Mn等的偏析为并且根据JIS G0555定义的部分清洁度不大于0.05％以减少蚀刻中条纹或斑点的发生。

6. 发明授权

US06464801B2 Advanced case carburizing secondary hardening steels 有权
标题翻译：先进的表面渗碳二次硬化钢
公开(公告)号：US06464801B2
公开(公告)日：2002-10-15
申请号：US09953332
申请日：2001-08-14
申请人： Charles J. Kuehmann , Gregory B. Olson , John P. Wise , Carelyn Campbell
发明人： Charles J. Kuehmann , Gregory B. Olson , John P. Wise , Carelyn Campbell
IPC分类号： C22C3808
CPC分类号： C21D9/32 , C21D1/18 , C21D6/007 , C21D6/04 , C21D2221/10 , C22C38/105 , C22C38/44 , C22C38/46 , C22C38/52 , F16H55/06
摘要： Steel alloys susceptible to case and core hardening comprising 0.05 to 0.24 weight percent carbon; 15 to 28 weight percent cobalt and 1.5 to 9.5 weight percent in nickel, small percentages of one or more additives: chromium, molybdenum, and vanadium; and the balance iron.
摘要翻译：易于壳和芯硬化的钢合金包含0.05至0.24重量百分比的碳; 镍含量为15〜28重量％，镍为1.5〜9.5重量％，少量的一种或多种添加剂：铬，钼，钒; 和平衡铁。

7. 发明授权

US06183573B2 High-toughness, high-tensile-strength steel and method of manufacturing the same 有权
标题翻译：高韧性，高抗拉强度的钢及其制造方法
公开(公告)号：US06183573B2
公开(公告)日：2001-02-06
申请号：US09482527
申请日：2000-01-14
申请人： Kazuki Fujiwara , Shuji Okaguchi , Masahiko Hamada , Yu-ichi Komizo
发明人： Kazuki Fujiwara , Shuji Okaguchi , Masahiko Hamada , Yu-ichi Komizo
IPC分类号： C22C3808
CPC分类号： C22C38/12 , C21D8/0205 , C21D8/0226 , C21D2211/002 , C21D2211/008 , C22C38/001 , C22C38/04 , C22C38/08
摘要： High-tensile-strength steel having excellent arrestability and a TS of not less than 900 MPa, as well as a method of manufacturing the same. The steel of the invention has the following composition (% by weight): C: 0.02% to 0.1%; Si: not greater than 0.6%; Mn: 0.2% to 2.5%; Ni: greater than 1.2% but not greater than 2.5%; Nb: 0.01% to 0.1%; Ti: 0.005% to 0.03%; N: 0.001% to 0.006%; Al: not greater than 0.1%; and optional elements. Ceq of the B-free steel is 0.53-0.7%, and Ceq of the B-bearing steel is 0.4-0.58%. The microstructure of the steel may be a mixed structure of martensite (M) and lower bainite (LB) occupying at least 90 vol. % in the microstructure, LB occupying at least 2 vol. % in the mixed structure, and the aspect ratio of prior austenite grains is not less than 3.
摘要翻译：具有优异的阻滞性和TS不低于900MPa的高强度钢及其制造方法。本发明的钢具有以下组成（重量％）：C：0.02〜0.1％ Si：不大于0.6％; Mn：0.2〜2.5％ Ni：大于1.2％但不大于2.5％; Nb：0.01〜0.1％ Ti：0.005〜0.03％ N：0.001〜0.006％ Al：不大于0.1％; 和可选元素。 B型钢的Ceq为0.53〜0.7％，B轴钢的Ceq为0.4〜0.58％。钢的微观结构可以是马氏体（M）和下部贝氏体（LB）的混合结构，其占据至少90体积％。微观结构中的％，LB占至少2体积。混合结构中的％，前奥氏体晶粒的纵横比不小于3。

8. 发明授权

US06776855B1 Maraging steel excellent in fatigue characteristics and method for producing the same 有权
标题翻译：疲劳特性优良的马氏体时效钢及其制造方法
公开(公告)号：US06776855B1
公开(公告)日：2004-08-17
申请号：US09700566
申请日：2000-11-16
申请人： Masami Ueda , Kenji Hirano
发明人： Masami Ueda , Kenji Hirano
IPC分类号： C22C3808
CPC分类号： C22C38/001 , C21D7/13 , C21D8/0205 , C22C38/004 , C22C38/06 , C22C38/105 , C22C38/12 , C22C38/14
摘要： The present invention provides a maraging steel excellent in fatigue characteristics and a process for the production thereof. A maraging steel of the first embodiment of the present invention has a chemical composition consisting essentially of, in % by weight: C: 0.01% or less, Ni: 8-19%, Co: 8-20%, Mo: 2-9%, Ti: 0.1-2%, Al: 0.15% or less, N: 0.003% or less, O: 0.0015% or less, and the balance Fe and the Ti component segregation ratio and the Mo component segregation ratio in its structure of 1.3 or less each. A maraging steel of the second embodiment of the present invention has the above composition and contains a nonmetallic inclusion in its structure having a size of 30 &mgr;m or less. The maraging steel of the second embodiment can be obtained easily by appropriate plastic working of a steel ingot with a taper Tp=(D1−D2)×100/H of 5.0-25.0%, a height-diameter ratio Rh=H/D of 1.0-3.0, and a flatness ratio B=W1/W2 of 1.5 or less. The material and production method of the present invention are suitable for various types of maraging steel members for which excellent fatigue characteristics are required.
摘要翻译：本发明提供疲劳特性优异的马氏体时效钢及其制造方法。本发明第一实施方式的马氏体时效钢具有以重量％计含有的化学成分：C：0.01％以下， Ni：8〜19％，Co：8〜20％，Mo：2-9％，Ti：0.1〜2％，Al：0.15％以下，N：0.003％以下，O：0.0015％以下，余量Fe和Ti组分偏析比和Mo组分偏析比在其结构中各自为1.3以下。本发明第二实施例的马氏体时效钢具有上述组成，并且在其结构中含有尺寸为30μm或更小的非金属夹杂物。第二实施例的马氏体接枝钢可以通过对锥形Tp =（D1-D2）×100 / H为5.0-25.0％，高直径比Rh = H / D为1.0的钢锭进行适当的塑性加工而容易地获得 -3.0，平坦度比B = W1 / W2为1.5以下。本发明的材料和制造方法适用于需要优异的疲劳特性的各种马氏体时效钢成型体。

9. 发明授权

US06656419B2 Fe-Ni based permalloy and method of producing the same and cast slab 失效
公开(公告)号：US06656419B2
公开(公告)日：2003-12-02
申请号：US09961366
申请日：2001-09-25
申请人： Tatsuya Itoh , Tsutomu Omori
发明人： Tatsuya Itoh , Tsutomu Omori
IPC分类号： C22C3808
CPC分类号： C22F1/10 , B22D11/001 , C21D6/001 , C21D8/0205 , C21D8/1205 , C21D8/1222 , C21D8/1233 , C21D8/1272 , C22C19/03 , C22C38/004 , C22C38/04 , C22C38/08 , H01F1/14708 , H01F1/14716
摘要： A Fe—Ni based permalloy comprises Ni: 30-85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Mn: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if necessary, not more than 15 wt % of at least one selected from the group consisting of Mo, Cu, Co and Nb within a range of not more than 20 wt % in total.

10. 发明授权

US06632298B1 Casting slab for shadow mask, method for heat treatment thereof and material for shadow mask 失效
标题翻译：荫罩用铸片，热处理方法及荫罩材料
公开(公告)号：US06632298B1
公开(公告)日：2003-10-14
申请号：US09979780
申请日：2002-02-26
申请人： Syun-ichi Morita , Taizo Sato , Jun Agari , Tsutomu Omori , Tatsuya Itoh , Shigeru Hirata
发明人： Syun-ichi Morita , Taizo Sato , Jun Agari , Tsutomu Omori , Tatsuya Itoh , Shigeru Hirata
IPC分类号： C22C3808
CPC分类号： H01J9/142 , B22D11/00 , B22D21/00 , C21D6/001 , C21D8/005 , C22C30/00 , C22C38/08 , H01J2229/0733
摘要： The present invention aims at providing a sophisticated segregation reducing technique which a conventional technique cannot achieve by finding the relationship between the casting structure and the segregation of components at the time of solidification and the heat treatment conditions. That is, the present invention aims at providing material for shadow masks which exhibits excellent quality with respect to streaks. A material for a shadow mask of the present invention is formed of a casting slab for preparing the shadow mask which comprises an Ni—Fe alloy containing 30 to 45% of Ni. The casting slab has a cast structure comprising a columnar crystal and/or a chill crystal in an amount of 99% or more. In particular, it is preferred that the casting slab contains no equiaxed crystal. To this end, such casting slab is prepared by a continuous casting method in which casting operation is carried out with no electromagnetic stirring and with maintaining a melt temperature of the non-solidificated part in the slab at a temperature equal to or more than the liquidus thereof. Further, the resultant slab is subjected to a heat treatment at a temperature for a time such that the K value becomes 150 &mgr;m or more, to thereby diffuse the segregation of Ni.
摘要翻译：本发明旨在提供一种复杂的偏析减少技术，其通过在凝固时和热处理条件下发现铸造结构与组分偏析之间的关系而无法实现。也就是说，本发明旨在提供一种相对于条纹表现出优良品质的荫罩材料。本发明的荫罩用材料由含有30〜45％的Ni的Ni-Fe合金制成荫罩的铸造板构成。铸造板具有含有99％以上的柱状晶体和/或冷却晶体的铸造结构体。特别地，优选铸造板不含等轴晶体。为此，这种铸造板坯通过连续铸造方法制备，其中在没有电磁搅拌的情况下进行铸造操作，并且将板坯中非固化部分的熔融温度保持在等于或大于液相线的温度其中。此外，将所得板坯在K值变为150μm以上的温度下进行热处理，由此扩散Ni的偏析。

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