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1. 发明专利

JPH01283383A TREATMENT OF HIGH NICKEL ALLOY WITH OXALATE FILM 失效
公开(公告)号：JPH01283383A
公开(公告)日：1989-11-14
申请号：JP22048988
申请日：1988-09-05
申请人： HITACHI METALS LTD , NIHON PARKERIZING
发明人： TOYAMA FUMIO , YASUDA REIJI , NAKAGAWA HIROYOSHI , FUKUDA AKIMITSU
IPC分类号： C23C22/46
摘要： PURPOSE:To form an oxalate film having a satisfactory thickness and high adhesion on a high Ni alloy by chemically treating the alloy with a treating soln. for an oxalate film contg. Fe ions at a specified concn. CONSTITUTION:A high Ni alloy is chemically treated with a treating soln. for an oxalate film contg. 0.001-10g/l Fe ions or further contg. 0.5-5g/l (expressed in terms of thiosulfuric acid) thiosulfate. when the high Ni alloy is an Ni-Cr alloy or Ni-Cr alloy steel contg. >=15wt.% Ni, the concn. of Fe ions in the treating soln. is preferably regulated to 0.5-5g/l. By the chemical treatment, an oxalate film having a satisfactory thickness and high adhesion is formed on the high Ni alloy and a thick base film for a lubricant nearly free from defects such as pinholes and having superior quality is obtd.

2. 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

3. 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

4. 发明专利

JP2008088550A High-hardness, precipitation-hardening stainless steel excellent in toughness 有权
标题翻译：高硬度，降低硬化不锈钢在韧性上卓越
公开(公告)号：JP2008088550A
公开(公告)日：2008-04-17
申请号：JP2007232081
申请日：2007-09-06
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： INOUE YOSHIYUKI , TOYAMA FUMIO , NAKATSU EIJI , SUGANO RYUICHIRO
IPC分类号： C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high-hardness, precipitation-hardening stainless steel which is excellent in toughness and corrosion resistance and has a super mirror finishing surface.
SOLUTION: The precipitation-hardening stainless steel comprises, by mass, ≤0.05% C, 0.6 to
摘要翻译：要解决的问题：提供韧性和耐腐蚀性优异且具有超镜面精加工表面的高硬度，沉淀硬化的不锈钢。解决方案：沉淀硬化不锈钢以质量计≤0.05％，Si为0.6〜1.5％，Mn为3.0％，Cr为6.0〜14.0％，Ni为4.0〜10.0％，Co为2.0％以下， ≤6.0％的Cu，1.0-3.5％的Ti，≤2.0％的Al（包括0％），≤1.0％的Mo，≤0.01％的N，余量是Fe和不可避免的杂质。 Si的含量优选为1.0〜1.5％，Mo的含量优选为0.5％以下。不锈钢还可以含有≤1.0％的Nb，或者还可以包含≤1.0％的Ta或≤0.1％的Zr。更优选地，不锈钢具有≥58HRC的硬度。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007262569A Prehardened steel having excellent machinability and toughness and its production method 有权
标题翻译：具有优异机械性和韧性的预制钢及其生产方法
公开(公告)号：JP2007262569A
公开(公告)日：2007-10-11
申请号：JP2007007907
申请日：2007-01-17
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： INOUE YOSHIYUKI , TOYAMA FUMIO , NAKATSU EIJI , TAMURA ISAO , HOSODA YASUHIRO , ANDO MITSUHIRO
IPC分类号： C22C38/00 , C21D6/00 , C22C38/58 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a prehardened steel having extremely excellent machinability and further combining toughness and hardness, and to provide its production method.
SOLUTION: The prehardened steel is a tool steel having a composition comprising, by mass, 0.05 to 0.17% C, ≤0.6% Si, 0.5 to 2.0% Mn, 2.5 to 3.5% Ni, ≤2.0% Cr, one or two kinds selected from W and Mo by ≤0.7% in terms of (1/2W+Mo), 0.5 to 1.5% Al and 0.7 to 2.5% Cu. The steel has a mixed structure composed of upper bainite and lower bainite, preferably, the area ratio of the lower bainite is 20 to 80%, and whose hardness is 34 to 45 HRC. A part of Fe may be substituted with ≤0.3% S. Then, after the tool steel having the composition is heated to an austenitic region, upper/lower mixed bainite formation heat treatment of cooling the same to a mixed region of the upper bainite and the lower bainite is performed, and thereafter, the tool steel is tempered to a hardness of 34 to 45 HRC.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有极好的可加工性并进一步结合韧性和硬度的预硬化钢，并提供其制造方法。解决方案：预硬化钢是具有质量0.05〜0.17％Si，0.5〜2.0％Mn，2.5〜3.5％Ni，≤2.0％Cr的组成的工具钢，从W和Mo中选择2种（1 / 2W + Mo）≤0.7％，Al：0.5〜1.5％，Cu：0.7〜2.5％。钢具有由上贝氏体和下贝氏体组成的混合结构，优选下贝氏体的面积比为20〜80％，硬度为34〜45HRC。 Fe的一部分可以用≤0.3％S替代。然后，将具有组成的工具钢加热到奥氏体区后，将上述/下混合贝氏体形成热处理冷却至上贝氏体和下贝氏体进行，然后将工具钢回火至34〜45℃的硬度。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2006028564A Steel for plastic molding die having excellent specular finishability 审中-公开
标题翻译：用于具有卓越的完整性的塑料模具用钢
公开(公告)号：JP2006028564A
公开(公告)日：2006-02-02
申请号：JP2004207142
申请日：2004-07-14
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOYAMA FUMIO , TAMURA ISAO
IPC分类号： C22C38/00 , C22C38/16 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel for a plastic molding die having excellent specular finishability.
SOLUTION: The steel for a plastic molding die is a precipitation hardening steel having a composition comprising, by mass, 1.0 to 5.0% Ni, 0.5 to 1.5% Al, 0.1 to 2.5% Cu, 0.01 to 0.4% Zr and ≤0.02% S, and in which the content of O is regulated to ≤20 ppm and N to ≤50 ppm. Preferably, the content of Al is ≥0.6%, or further, the content of Ca is regulated to ≤5 ppm and Mg to ≤30 ppm. Regarding these steels for a die, at the time when oxides in each steel are floated up by electron beam button melting, and the floated surfaces of the oxides are observed, the ratio of ZrO
2 occupied in all the oxides is desirably ≥95 area%.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异的镜面整理性的塑料模具用钢。解决方案：塑料模具用钢是沉淀硬化钢，其组成为：质量分数为1.0〜5.0％的Ni，0.5〜1.5％的Al，0.1〜2.5％的Cu，0.01〜0.4％的Zr和≤ 0.02％S，其中O的含量调节至≤20ppm，N至≤50ppm。优选地，Al的含量≥0.6％，或者进一步将Ca的含量调节至≤5ppm，将Mg调节至≤30ppm。关于这些用于模具的钢，在每个钢中的氧化物通过电子束按钮熔化浮起的时候，并且观察到氧化物的漂浮表面时，所有的ZrO 2 的比例氧化物优选为≥95面积％。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JPH11293385A STEEL FOR METAL MOLD FOR PLASTIC MOLDING, EXCELLENT IN MACHINABILITY 失效
公开(公告)号：JPH11293385A
公开(公告)日：1999-10-26
申请号：JP12003698
申请日：1998-04-14
申请人： HITACHI METALS LTD
发明人： MIZUGUCHI TAKEO , ISHIHARA MAKOTO , HAYAFUJI TETSUNORI , MURAKAWA YOSHIYUKI , TOYAMA FUMIO
IPC分类号： C22C38/00 , C22C38/16 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To produce a steel for metal mold for plastic molding, excellent in machinability and capable of prolonging the service life of a cutting tool and further capable of attaining improvement in productivity with the increase in cutting ratio. SOLUTION: This steel has a composition containing, by weight, 0.08-0.17% C,

8. 发明专利

JPH1143747A HIGH HARDNESS CORROSION RESISTANT POWDER DIE STEEL EXCELLENT FOR MIRROR FINISHING AND ITS PRODUCTION 失效
公开(公告)号：JPH1143747A
公开(公告)日：1999-02-16
申请号：JP19664497
申请日：1997-07-23
申请人： HITACHI METALS LTD
发明人： TOYAMA FUMIO , MURAKAWA YOSHIYUKI
IPC分类号： B22F3/24 , C22C33/02 , C22C38/00 , C22C38/24 , C22C38/52
摘要： PROBLEM TO BE SOLVED: To produce powder die steel improved in corrosion resistance and heat treating hardness, furthermore having high mirrorfinishing properties and suitable for a plastic die material and to provide a method for producing it. SOLUTION: This high hardness corrosion resistant die steel excellent in finishing properties has a compsn. contg., by weight, 1.0 to 1.6%, C, 0.7 to 1.5% Si,

9. 发明专利

JPS61199066A TREATMENT OF SURFACE 失效
公开(公告)号：JPS61199066A
公开(公告)日：1986-09-03
申请号：JP4006985
申请日：1985-02-28
申请人： HITACHI METALS LTD
发明人： UCHIDA NORIMASA , ASHIBA REIKICHI , TOYAMA FUMIO
IPC分类号： C23C10/36 , C23C10/28 , C23C10/52 , C23C12/02
摘要： PURPOSE:To harden stably the surface of steel at a low cost by embedding the steel in powder obtd. by mixing powder of a group IVa, Va or VIa metal in the periodic table with refractory powder and halide in a specified ratio and by heating the mixed powder in vacuum. CONSTITUTION:Steel is embedded in powder obtd. by mixing 10-60wt% powder of one or more kinds of metals selected among the group IVa, Va and VIa metals in the periodic table and alloys thereof with 30-85wt% refractory powder and 0.2-30wt% halide and the mixed powder is heated to about 700-1,200 deg.C in vacuum to form a layer of the hard carbide of the selected metals on the surface of the steel. Since air, steam, etc., in the mixed powder are removed by evacuation, the oxidation of the steel and the powder is prevented to form stably the carbide layer and to prolong the endurance life of the powder, so the cost can be reduced.

10. 发明专利

JPS61119961A Deep cooling device by fluidized bed 失效
标题翻译：通过流化床进行深度冷却装置
公开(公告)号：JPS61119961A
公开(公告)日：1986-06-07
申请号：JP24106384
申请日：1984-11-15
申请人： Hitachi Metals Ltd
发明人： TOYAMA FUMIO
IPC分类号： F25D3/10

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