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1. 发明专利

JP2011200964A Method of cutting steel 审中-公开
标题翻译：切割钢的方法
公开(公告)号：JP2011200964A
公开(公告)日：2011-10-13
申请号：JP2010069830
申请日：2010-03-25
申请人： Hitachi Metals Ltd , Hitachi Tool Engineering Ltd , 日立ツール株式会社 , 日立金属株式会社
发明人： KOSEKI HIDEMINE , MORISHITA KANA , NAKATSU EIJI , SUGANO RYUICHIRO
IPC分类号： B23B27/14
摘要： PROBLEM TO BE SOLVED: To provide a method of cutting steel capable of improving a service life of a cutting tool.SOLUTION: In the method of cutting steel, steel to be cut that includes 0.2-1.0 mass% Si, 0.9-2.0 mass% Mn, and Al regulated to be at 0.02 mass% or less, and has a hardness of 35-45 HRC is cut by the cutting tool of which the working face is coated with a hard film of a Cr-based nitride or an AlCr-based nitride. The cutting speed is preferably 100 m/min or higher. The hard film is desired to be a Cr-based nitride, or desired to additionally include Si. The steel to be cut preferably includes S≤0.05 mass%, and/or Al is regulated to be at 0.005 mass% or less.
摘要翻译：要解决的问题：提供一种能够提高切削工具的使用寿命的钢的切削方法。解决方案：在切削钢的方法中，包括0.2-1.0质量％的Si，0.9-2.0质量％ Mn和Al调节为0.02质量％以下，硬度为35〜45℃的切削刀具被切割，工作面用Cr系氮化物或AlCr- 基于氮化物。切割速度优选为100m / min以上。硬膜希望是Cr基氮化物，或者期望另外包括Si。待切割钢优选含有≤0.05质量％，和/或将铝调节至0.005质量％以下。

2. 发明专利

JP2009256797A Steel for die having excellent machinability 有权
标题翻译：具有优异机械性能的钢
公开(公告)号：JP2009256797A
公开(公告)日：2009-11-05
申请号：JP2009077028
申请日：2009-03-26
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： SUGANO RYUICHIRO , NAKATSU EIJI , INOUE YOSHIYUKI , TOYAMA FUMIO , TAMURA ISAO , HOSODA YASUHIRO , ANDO MITSUHIRO
IPC分类号： C22C38/00 , B29C33/38 , C21D8/06 , C21D9/00 , C22C38/46 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a steel for a die having excellent machinability, toughness and hardness, and having excellent electric discharge properties, polishing finishing properties and wear resistance in combination. SOLUTION: Disclosed is the steel for the die having a composition containing, by mass, 0.1 to 0.25% C, ≤1.0% Si, ≤2.00% Mn, 0.6 to 1.5% Ni, >1.0 to 2.5% Cr, Mo and W alone or in combination so as to satisfy ≤1.0% (Mo+1/2W), 0.03 to 0.15% V, 0.5 to 2.0% Cu and ≤0.03% S, and in which the content of Al is regulated to ≤0.1%, N to ≤0.06% and O to ≤0.005%, and the balance Fe with inevitable impurities. MnS-based inclusions present in the structural cross-section in the steel, has the circle-equivalent diameter of ≤50 μm at the maximum and the area ratio of 0.12 to 0.7%, and further, preferably, the average crystal grain size of old austenite is ≤200 μm, and its hardness is 34 to 45 HRC. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有优异的机械加工性，韧性和硬度，并具有优异的放电性能，抛光精加工性能和耐磨性的组合用钢。解决方案：公开了一种组合物，其含有质量为0.1〜0.25％的Si，≤2.00％的Mn，0.6〜1.5％的Ni，1.0〜2.5％的Cr，Mo 和W组合，以满足≤1.0％（Mo + 1 / 2W），0.03〜0.15％V，0.5〜2.0％Cu和≤0.03％S，其中Al的含量调节至≤0.1 ％，N≤0.06％，O≤0.005％，余量为Fe与不可避免的杂质。存在于钢的结构截面中的MnS系夹杂物的最大直径为圆周当量直径≤50μm，面积比为0.12〜0.7％，进一步优选为平均结晶粒径奥氏体≤200μm，硬度34〜45HRC。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2011144449A Steel for die having excellent hot workability 有权
标题翻译：具有优异热效率的钢铁
公开(公告)号：JP2011144449A
公开(公告)日：2011-07-28
申请号：JP2010271184
申请日：2010-12-06
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： SUGANO RYUICHIRO , TOYAMA FUMIO
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a steel for a die which jointly has excellent machinability, rusting resistance and hot workability, and also has strength and toughness satisfying as those of a die product. SOLUTION: The steel for the die has a composition comprising, by mass, 0.1 to 0 to 1.2% Si, 1.2 to 2.0% Mn, 0.01 to 0.1% S, 0.5 to 1.5% Ni, 12.0 to 13.0% Cr, 0.3 to 0.8% Mo, 0.07 to 0.3% V, 0.1 to 1.0% Cu, ≤0.05% Al, 0.03 to 0.1% N, and the balance Fe with inevitable impurities. Preferably, the Si content is controlled to 0.1 to 0.8%, the S content is controlled to 0.05 to 0.1% and the N content is controlled to 0.04 to 0.1%, and the content of O as inevitable impurity is controlled to ≤0.02%. Further, the hardness of the steel for the die is controlled to 30-45 HRC. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种模具用钢，其共同具有优异的机械加工性，防锈性和热加工性，并且还具有与模具产品相当的强度和韧性。＆lt; P＆gt;解决方案：用于模具的钢的组成包括：0.1〜0.2％的C，0〜1.2％的Si，1.2〜2.0％的Mn，0.01〜0.1％的S，0.5〜1.5％的Ni， 12.0〜13.0％Cr，0.3〜0.8％Mo，0.07〜0.3％V，0.1〜1.0％Cu，≤0.05％Al，0.03〜0.1％N，余量为Fe与不可避免的杂质。优选将Si含量控制在0.1〜0.8％，将S含量控制在0.05〜0.1％，将N含量控制在0.04〜0.1％，将不可避免的杂质含量控制在≤0.02％。此外，将模具用钢的硬度控制在30〜45HRC。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2009221594A Hot-working tool steel having excellent toughness 审中-公开
标题翻译：具有卓越韧性的热作工具钢
公开(公告)号：JP2009221594A
公开(公告)日：2009-10-01
申请号：JP2008312524
申请日：2008-12-08
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： FUKUMARU TAISHIRO , SUGANO RYUICHIRO , KATAOKA KIMITA
IPC分类号： C22C38/00 , C21D6/00 , C22C38/24 , C22C38/46
摘要： PROBLEM TO BE SOLVED: To provide a hot-working tool steel most suitable for various hot-working tools such as a press die, forging die, die-casting die and extruding tool, and having enhanced toughness.
SOLUTION: The hot-working tool steel comprises, by mass, 0.34 to 0.40% C, >0.5 to 0.8% Si, 0.45 to 0.75% Mn, 0 to
摘要翻译：要解决的问题：提供最适用于各种热加工工具如压模，锻模，压铸模和挤压工具的热加工工具钢，并具有增强的韧性。解决方案：热加工工具钢质量分数为C34.0〜0.40％，Si为0.45〜0.75％，Ni为0〜0.5％，Cr为Mo为4.9〜5.5％ /或W单独或完全以（Mo + 1 / 2W）计为2.5〜2.9％，V为0.5〜0.7％，余量为Fe为不可避免的杂质。热加工工具钢具有优异的韧性提高效果，特别是在45HRC以上的高硬度范围内。因此，工具钢不仅可以应用于各种热加工工具，例如压模，锻模，压铸模和挤压工具，而且还可应用于施加重负荷的热加工工具部件使用。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2011084809A Steel for metal mold having excellent hole workability, and method for producing the same 有权
标题翻译：具有优异的孔的可锻性的金属模具用钢及其制造方法
公开(公告)号：JP2011084809A
公开(公告)日：2011-04-28
申请号：JP2010199944
申请日：2010-09-07
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： SUGANO RYUICHIRO , NAKATSU EIJI , HOSODA YASUHIRO
IPC分类号： C22C38/00 , C21D1/18 , C21D6/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a steel for a metal mold in which excellent machinability is achieved and small-sized hole workability is improved, and to provide a method for producing the same.
SOLUTION: The steel for the metal mold has a composition composed of, by mass, 0.1 to 0.25% C, ≤1.0% Si, ≤2.0% Mn, 0.6 to 1.5% Ni, >1.0 to 2.5% Cr, Mo and W alone or in combination by ≤1.0% in terms of Mo+1/2W, 0.03 to 0.15% V, 0.3 to 2.0% Cu and ≤0.05% S, and in which the content of Al is regulated to ≤0.l%, the content of N is regulated to ≤0.06% and the content of O is regulated to ≤0.005%, and the balance Fe with inevitable impurities, and in which a value by formula 1 is ≥150: formula 1: 59.9×(Rockwell hardness [HRC])+12,666.8×(the content [mass%] of sulfur)+7.58×(the amount [area%] of lower bainite occupying in the cross-sectional structure)+11.4×(the average crystal grain size [grain size number] of old austenite according to ASTM-E112)+1,531.1. There is provided the method for producing the steel.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种金属模具用钢，其中实现了优异的机械加工性并提高了小孔加工性，并提供了其制造方法。解决方案：用于金属模的钢具有质量分数为0.1〜0.25％的Si，≤2.0％的Mn，0.6〜1.5％的Ni，1.0〜2.5％的Cr，Mo 和W单独使用，或以Mo + 1 / 2W，0.03〜0.15％V，0.3〜2.0％Cu，≤0.05％S计≤1.0％，其中Al的含量调节至≤0.1 ％，N含量调节至≤0.06％，O含量调节至≤0.005％，余量为Fe与不可避免的杂质，其中式1为≥150：式1：59.9×（洛氏硬度[HRC]）+12,666.8×（硫含量[质量％]）+ 7.58×（下部贝氏体占截面结构的面积％）+ 11.4×（平均结晶粒径[ 根据ASTM-E112）的旧奥氏体的晶粒数）+1,531.1。提供了钢的制造方法。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010051982A Welding material for repairing mold 审中-公开
标题翻译：维修模具焊接材料
公开(公告)号：JP2010051982A
公开(公告)日：2010-03-11
申请号：JP2008217132
申请日：2008-08-26
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： INOUE YOSHIYUKI , TOYAMA FUMIO , SUGANO RYUICHIRO
IPC分类号： B23K35/30 , B29C33/74 , C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a welding material, which is most suitable for repairing the mold disclosed in Japanese Published Patent Application No.2007-146278, and specifically has excellent mirror-finishing property while keeping the performance of the mold even after welding to repair the mold, and further which makes equal the hardness of a welded part and that of the base material of the mold to suppress unevenness in embossing or uneven wear in forming.
SOLUTION: A mold is made of steel containing, by mass%, 0.10-0.25% C, ≤1.00% Si, ≤2.00% Mn, 0.60-1.50% Ni, >1.00% and ≤2.50% Cr, Mo and/or W alone or in combination to satisfy 0.10-1.00% of (Mo+1/2W), 0.03-0.15% V, 0.50-2.00% Cu, 0.007-0.05% S, and the balance Fe with inevitable impurities. A welding material for repairing the mold is composed of the steel containing, by mass%, 0.07-0.25% C, 0.40-1.00% Si, ≤2.00% Mn, 0.40-1.50% Ni, >0.80% and ≤2.50% Cr, Mo and/or W alone or in combination to satisfy 0.08-1.00% of (Mo+1/2W), 0.02-0.15% V, 0.10-0.45% Cu, ≤0.005% S, and the balance Fe with inevitable impurities.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供最适合于日本专利申请No.2007-146278中公开的模具的修补的焊接材料，并且具有优异的镜面抛光性，同时保持模具的性能甚至焊后修复模具，进一步使焊接部的硬度和模具的基材的硬度相等，以抑制成型时的压花不均匀或不均匀的磨损。解决方案：模具由以质量％计含有0.10-0.25％C，≤1.00％Si，≤2.00％Mn，0.60-1.50％Ni，> 1.00％和≤2.50％Cr，Mo和 /或W组合，以满足（Mo + 1 / 2W），0.03-0.15％V，0.50-2.00％Cu，0.007-0.05％S的0.10-1.00％，余量为Fe与不可避免的杂质。用于修复模具的焊接材料由以质量％计含有0.07-0.25％C，0.40-1.00％Si，≤2.00％Mn，0.40-1.50％Ni，> 0.80％和≤2.50％Cr的钢， Mo和/或W单独或组合以满足（Mo + 1 / 2W），0.02-0.15％V，0.10-0.45％Cu，≤0.005％S的0.08-1.00％，余量为Fe与不可避免的杂质。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009138265A Method for manufacturing age-hardening type stainless steel 有权
标题翻译：制造老化型不锈钢的方法
公开(公告)号：JP2009138265A
公开(公告)日：2009-06-25
申请号：JP2008280035
申请日：2008-10-30
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： SUGANO RYUICHIRO , INOUE YOSHIYUKI , NAKATSU EIJI , TOYAMA FUMIO
IPC分类号： C21D8/00 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an age-hardening type stainless steel superior in toughness. SOLUTION: In a process of manufacturing steel containing, by mass, 0.05% or less C, 0.6% or more but less than 3.5% Si, 3.0% or less Mn, 6.0 to 14.0% Cr, 4.0 to 10.0% Ni, 20.0% or less Co, 6.0% or less Cu, 0.5 to 3.5% Ti and 2.0% or less Al (including 0%), the method for manufacturing the age-hardening type stainless steel includes: subjecting the above steel to solution treatment of holding the steel at a temperature of 1,000°C or higher and for a period of exceeding 60 minutes; plastic-working the steel at a finishing temperature of 700°C or higher, which is a surface temperature of the steel, in a process of cooling the steel from the holding temperature; and subsequently subjecting the steel to aging treatment. In addition, homogenizing treatment may be conducted prior to the solution treatment. The aging treatment is desirably conducted at 400 to 550°C, and for instance, adjusts the hardness of the steel to 58 HRC or higher. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种韧性优异的时效硬化型不锈钢的制造方法。解决方案：在制造含有0.05％以下C，0.6％以上，3.5％以下Mn，3.0％以下Mn，6.0〜14.0％Cr，4.0〜10.0％Ni，，20.0％以下的Co，6.0％以下的Cu，0.5〜3.5％的Ti和2.0％以下的Al（包括0％），所述时效硬化型不锈钢的制造方法包括：对上述钢进行固溶处理在1000℃以上的温度下保持钢材超过60分钟的时间; 在从保持温度冷却钢的过程中，以700℃以上的终轧温度对钢进行塑性加工，即钢的表面温度; 然后对钢进行老化处理。此外，均匀化处理可以在固溶处理之前进行。时效处理优选在400〜550℃下进行，例如将钢的硬度调整为58HRC以上。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2013228369A Method for evaluating polishing property of steel material for metal mold, and method for evaluating polishing property of metal mold 有权
标题翻译：用于评估金属模具的钢材的抛光性能的方法和用于评估金属模具抛光性能的方法
公开(公告)号：JP2013228369A
公开(公告)日：2013-11-07
申请号：JP2013030809
申请日：2013-02-20
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： SUGANO RYUICHIRO , NAGASAWA MASAYUKI , KISHIKAWA MADOKA
IPC分类号： G01B21/30 , G01B5/28
摘要： PROBLEM TO BE SOLVED: To provide a method for evaluating polishing properties of a steel material for metal molds or a metal mold capable of numerically predicting surface properties of a molded object obtained by the metal mold, under optimal measuring conditions.SOLUTION: The evaluation method for polishing properties of a steel material for metal molds includes: polishing the surface of the steel material for the metal molds by abrasive grains, measuring undulation on the surface after the polishing, and evaluating the polishing properties. In the evaluation method for the polishing properties of the metal mold, the undulation is measured by using an undulation curve obtained by setting a cutoff value λc to a value satisfying a relationship of (an average grain size of the abrasive grain used for the polishing work×10)
摘要翻译：要解决的问题：提供一种用于评估金属模具的钢材的抛光性能的方法或能够以最佳测量条件数值地预测由金属模具获得的模制品的表面性质的金属模具。方法：评估方法用于金属模具的钢材的抛光性能包括：通过磨粒研磨用于金属模的钢材的表面，在抛光后测量表面上的起伏，并评估抛光性能。在金属模具的研磨性的评价方法中，通过使用通过将截止值λc设定为满足（用于研磨工作的磨粒的平均粒径）的值而得到的波动曲线来测量波动 ×10）<λc<（元素的平均长度WSm）。优选地，使用平均高度Wc作为指标来测量波动。在金属模具的研磨性的评价方法中，对实际制造的金属模具的工作面进行起伏测定。

9. 发明专利

JP2013082992A Method for producing steel material excellent in toughness for die 有权
标题翻译：用于生产优质钢材的方法
公开(公告)号：JP2013082992A
公开(公告)日：2013-05-09
申请号：JP2012163184
申请日：2012-07-24
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： SUGANO RYUICHIRO , SEKIYAMA TAKAAKI , KISHIKAWA MADOKA
IPC分类号： C21D8/00 , C21D6/00 , C22B9/18 , C22B9/20 , C22C38/00 , C22C38/18 , C22C38/44
摘要： PROBLEM TO BE SOLVED: To provide a method for producing steel material for a die, composed of martensitic stainless steel and excellent in toughness.SOLUTION: The method for producing steel material for a die is provided in which a martensitic stainless steel raw material having component composition containing by mass%, 0.3-0.5% C and 12.0 to 16.0% Cr, is hot-worked and successively, the hot-worked stainless steel raw material is annealed, wherein the hot working is carried out in such a manner that: the working ratio calculated using an expression of [(the thickness of the stainless steel raw material before hot working - the thickness of the stainless steel raw material after hot-working)/the thickness of the stainless steel raw material before subjected to the hot working]×100, is ≥55%; and the hot-worked stainless steel raw material is cooled to the temperature of the Ms point or lower and then successively, the stainless steel raw material is heated to the annealing temperature and subjected to the above annealing. In another embodiment, a method for producing steel material for a die is provided in which after the stainless steel raw material is annealed, the stainless steel raw material is hardened and tempered, and thus pre-hardened steel material is obtained.
摘要翻译：解决的问题：提供一种由马氏体不锈钢制成的模具用钢材的制造方法，其韧性优异。解决方案：提供一种模具用钢材的制造方法，其特征在于，将含有质量％，0.3〜0.5％C，12.0〜16.0％Cr的成分组成的马氏体系不锈钢原料热处理，依次对热加工的不锈钢原料进行退火，其中热加工的工作方式为：使用[（热加工前的不锈钢原料的厚度） - [ 热加工后的不锈钢原料）/热加工前不锈钢原料的厚度]×100，≥55％; 将热加工的不锈钢原料冷却至Ms点以下的温度，然后依次将不锈钢原料加热至退火温度并进行上述退火。在另一实施例中，提供了一种用于制造模具的钢材的方法，其中在不锈钢原材料退火之后，对不锈钢原料进行硬化和回火，从而获得预硬化的钢材。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2011200965A Method of cutting steel 审中-公开
标题翻译：切割钢的方法
公开(公告)号：JP2011200965A
公开(公告)日：2011-10-13
申请号：JP2010069831
申请日：2010-03-25
申请人： Hitachi Metals Ltd , Hitachi Tool Engineering Ltd , 日立ツール株式会社 , 日立金属株式会社
发明人： KOSEKI HIDEMINE , MORISHITA KANA , NAKATSU EIJI , SUGANO RYUICHIRO
IPC分类号： B23B1/00
摘要： PROBLEM TO BE SOLVED: To provide a method of cutting steel capable of improving a service life of a cutting tool.SOLUTION: In the method of cutting steel, steel to be cut that includes 0.2-1.0 mass% Si, 0.9-2.0 mass% Mn, and Al regulated to be at 0.02 mass% or less, and has a hardness of 35-45 HRC is cut by the cutting tool of which the working face is coated with a hard film of a Ti-based nitride. The cutting speed is preferably 120 m/min or higher. The steel to be cut preferably includes S≤0.05 mass%, and/or Al is regulated to be at 0.005 mass% or less.
摘要翻译：要解决的问题：提供一种能够提高切削工具的使用寿命的钢的切削方法。解决方案：在切割钢的方法中，包括0.2-1.0质量％的Si，0.9-2.0质量％ Mn和Al调节为0.02质量％以下，硬度为35〜45的HRC被切削工具切割，工作面用Ti系氮化物的硬质膜涂覆。切割速度优选为120m / min以上。待切割钢优选含有≤0.05质量％，和/或将铝调节至0.005质量％以下。

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