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1. 发明专利

TW583315B 易削鋼有权
简体标题：易削钢
公开(公告)号：TW583315B
公开(公告)日：2004-04-11
申请号：TW091134756
申请日：2002-11-29
申请人： NKK條鋼股份有限公司 NKK BARS & SHAPES CO., LTD , 獨立行政法人產業技術總合研究所 NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY , 石田清仁 KIYOHITO ISHIDA
发明人：村上俊之 TOSHIYUKI MURAKAMI , 白神哲夫 TETSUO SHIRAGA , 石田清仁 KIYOHITO ISHIDA , 及川勝成 KATSUNARI OIKAWA
IPC分类号： C22C
CPC分类号： C22C38/60 , C22C38/002 , C22C38/04 , C22C38/18 , C22C38/58
摘要：含有質量%C：0.02～0.15%、Mn：0.05～1.8%、S：0.20～0.49%、O：超過0.01～0.03%、Cr：0.3～2.3%，且殘餘部分為 Fe及不可避免的雜質所構成，且令Cr/S比為2～6之範圍，則可取得低碳易削鋼。
简体摘要：含有质量%C：0.02～0.15%、Mn：0.05～1.8%、S：0.20～0.49%、O：超过0.01～0.03%、Cr：0.3～2.3%，且残余部分为 Fe及不可避免的杂质所构成，且令Cr/S比为2～6之范围，则可取得低碳易削钢。

2. 发明专利

JP2005171266A Method for operating electric furnace 审中-公开
标题翻译：电炉操作方法
公开(公告)号：JP2005171266A
公开(公告)日：2005-06-30
申请号：JP2003408056
申请日：2003-12-05
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Nkk Bars & Shapes Co Ltd , エヌケーケー条鋼株式会社
发明人： TADA MUTSUMI , FUJIMURA TOSHIO , HAZUMI FUMINORI , KOMATSU YOSHIMI , SAWADA TOMOYUKI , OIKAWA NOBORU
IPC分类号： C21C5/52
CPC分类号： Y02P10/216
摘要： PROBLEM TO BE SOLVED: To provide a method for operating an electric furnace by which charged material containing carbon content such as abandoned automobiles can be melted with the electric furnace. SOLUTION: When the charged material mainly containing solid iron source and the carbon content, is melted with the use of the electric furnace 100 which has a furnace body and a furnace cover and is charged with the raw material with a bucket by swinging the furnace cover, CO in the waste gas exhausted from the electric furnace 100 is monitored with a gas analyzing instrument 208 and the operation is performed so that the CO concentration does not become ≥10%. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种操作电炉的方法，通过该电炉，含有废弃汽车等碳含量的电荷材料可以用电炉熔化。解决方案：当主要含有固体铁源的带电材料和碳含量时，使用具有炉体和炉盖的电炉100熔化，并通过摆动向桶中装入原料用气体分析仪器208监测从电炉100排出的废气中的炉盖CO，进行CO浓度不超过10％的操作。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005171265A Method for operating electric furnace 审中-公开
标题翻译：电炉操作方法
公开(公告)号：JP2005171265A
公开(公告)日：2005-06-30
申请号：JP2003408055
申请日：2003-12-05
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Nkk Bars & Shapes Co Ltd , エヌケーケー条鋼株式会社
发明人： TADA MUTSUMI , FUJIMURA TOSHIO , HAZUMI FUMINORI , KOMATSU YOSHIMI , SAWADA TOMOYUKI , OIKAWA NOBORU
IPC分类号： B09B3/00 , C21C5/52
CPC分类号： Y02P10/216
摘要： PROBLEM TO BE SOLVED: To provide a method for operating an electric furnace by which melting treatment can be performed at high efficiency even when carbon and hydrogen in charged raw material are increased due to use of raw material containing a large quantity of combustible content obtained by pressing abandoned automobiles without being shredded after scrapped. SOLUTION: When the charged material mainly containing solid iron source is melted with the use of the electric furnace 100 which has a furnace body and a furnace cover and is charged with the raw material with a bucket by swinging the furnace cover, the ratio of the carbon and the hydrogen in the charged material is ≥1 mass% and the solid iron source in the charged material is melted by using arc by arc electrodes 103 together with a burner 107. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种操作电炉的方法，其中即使使用含有大量可燃物的原料，加入的原料中的碳和氢也能以高效率进行熔融处理通过按废弃的汽车在报废后不被切碎而获得的内容。解决方案：当主要含有固体铁源的带电材料通过使用具有炉体和炉盖的电炉100熔化并且通过摆动炉盖而用桶装入原料时，带电材料中的碳和氢的比例为≥1质量％，并且通过电弧电极103与燃烧器107一起使电弧熔化带电材料中的固体铁源。（C）2005， JPO＆NCIPI

4. 发明专利

JP2003321744A High strength bolt or nut having excellent refractoriness and production method thereof 有权
$High strength bolt or nut having excellent refractoriness and production method thereof$
标题翻译：高强度螺栓或具有优良耐磨性的螺母及其制造方法
公开(公告)号：JP2003321744A
公开(公告)日：2003-11-14
申请号：JP2002125407
申请日：2002-04-26
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Nkk Bars & Shapes Co Ltd , エヌケーケー条鋼株式会社
发明人： SHIRAGAMI TETSUO , KIKUCHI KATSUHIKO , TOMITA KUNIKAZU , FUNAKAWA YOSHIMASA , SHIOZAKI TAKESHI , HAYASHI KENJI
IPC分类号： C21D8/06 , C21D9/00 , C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high strength bolt or nut which has excellent refractoriness, and to provide a production method thereof.
SOLUTION: The high strength bolt or nut is provided with a tempered martensite single phase structure in which fine precipitates with a particle diameter of 0.5°C/sec to form a bolt or a nut. The bolt or nut is thereafter quenched, and is subsequently held at 550 to 700°C for ≥10 min.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种具有优异耐火性的高强度螺栓或螺母，并提供其制造方法。解决方案：高强度螺栓或螺母设置有回火马氏体单相结构，其中粒径<10nm的细小析出物分散沉淀。螺栓或螺母具有以质量计含有≤0.10％C，≤0.30％Si，≤2％Mn，≤0.1％Al，0.03-0.20％Ti和0.05-0.6％Mo，还含有一种或多种选自≤0.08％Nb，≤0.15％V和≤1.5％W的金属，如果需要，含有选自≤0.3％Cu，≤2％Ni，≤2％Cr和0.0003-0.003％中的一种或多种金属， B，并且还满足0.5≤（C / 12）/ä（Ti / 48）+（Mo / 96）+（Nb / 93）+（V / 51）+（W / 192）}≤1.5，铁与不可避免的杂质。将具有上述组成的钢加热至≥1,100℃，然后在精轧温度≥800℃下进行轧制。此后在550〜700℃以0.5℃/秒以下进行冷却，形成螺栓或螺母。螺栓或螺母之后淬火，随后在550〜700℃保持≥10分钟。版权所有（C）2004，JPO

5. 发明专利

JP2003321742A High strength steel wire rod having excellent wire drawability and production method therefor 有权
标题翻译：具有优异线材拉拔性能的高强度钢丝绳及其生产方法
公开(公告)号：JP2003321742A
公开(公告)日：2003-11-14
申请号：JP2002125406
申请日：2002-04-26
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Nkk Bars & Shapes Co Ltd , エヌケーケー条鋼株式会社
发明人： SHIRAGAMI TETSUO , KIKUCHI KATSUHIKO , TOMITA KUNIKAZU , FUNAKAWA YOSHIMASA , SHIOZAKI TAKESHI
IPC分类号： C21D8/06 , C22C38/00 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To provide a high strength steel wire rod which has excellent wire drawability, and to provide a production method therefor.
SOLUTION: The high strength steel wire rod has a ferrite single phase structure in which fine precipitates with a particle diameter of
摘要翻译：要解决的问题：提供一种具有优异的拉丝性的高强度钢线材，并提供其制造方法。解决方案：高强度钢线材具有铁素体单相结构，其中粒径<10nm的微细析出物分散沉淀。该线材的质量分数为：≤0.10％C，≤0.3％Si和≤2％Mn，0.03〜0.20％Ti和0.05〜0.6％Mo，以满足Ti / Mo：0.2〜2.0，进一步包括一种或选自≤0.08％Nb，≤0.15％V，≤1.5％W，≤2％Ni和≤2％Cr的更多种金属，余量为不可避免的杂质，其中0.5≤（C / 12）/ä（Ti / 48）+（Mo / 96）+（Nb / 93）+（V / 51）+（W / 192）}≤1.5。将具有上述组成的钢加热至≥1,100℃，然后在≥800℃的精轧温度下进行轧制。随后，在550〜700℃以≤0.5℃/秒的速度进行冷却。版权所有（C）2004，JPO

6. 发明专利

JP2002348637A STEEL FOR SCREW WITH HIGH STRENGTH, SCREW WITH HIGH STRENGTH AND MANUFACTURING METHOD THEREFOR 失效
公开(公告)号：JP2002348637A
公开(公告)日：2002-12-04
申请号：JP2001149735
申请日：2001-05-18
申请人： NKK BARS & SHAPES CO LTD , ONOE KOJI
发明人： SHIRAGAMI TETSUO , KIKUCHI KATSUHIKO , ONOE KOJI
IPC分类号： C21D1/06 , C21D9/00 , C22C38/00 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel for screws with high strength, which improves the adverse effect of increased impurity elements such as P and S, and further has combination of strength required for bolts (800 N/mm or more) and adequate tapping properties. SOLUTION: The steel comprises, by wt.%, 0.05-0.20% C, 0.20% or less Si, 0.5-2.0% Mn, 0.015-0.040% P, 0.040% or less S, 0.010-0.080% Al, 0.010% or less N, 2.0% or less Cr, 0.0005-0.0050% B, and the balance iron with unavoidable impurities. The manufacturing method is characterized by forming and then carburizing the screw.

7. 发明专利

JP2005068460A Nonrefining hot forged component having excellent low ductility and machinability, and method for manufacturing the component 有权
标题翻译：具有优异的低密度和可加工性的非加热组件的制造方法和用于制造组件的方法
公开(公告)号：JP2005068460A
公开(公告)日：2005-03-17
申请号：JP2003296683
申请日：2003-08-20
申请人： Nkk Bars & Shapes Co Ltd , エヌケーケー条鋼株式会社
发明人： SHIRAGAMI TETSUO , FUKUOKA KAZUAKI
IPC分类号： B21J5/00 , C21D8/00 , C22C38/00 , C22C38/14 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To manufacture a hot-forged component such as a connecting rod characterized in that: a material is appropriately controlled to have low ductility while keeping required strength; the raw material is hot forged in a monolithic state; the obtained material shows a flat brittle fracture face when the material is subjected to tensile fracture at normal temperature; when the fractured and divided parts are again united, they can be easily butted; and the material can be subjected to machining such as making a bolt hole without using an element such as Pb which influences the global environment.
SOLUTION: The component has a ferrite single phase structure and contains fine precipitates having 2 yield stress and ≥0.85 yield ratio, and shows a brittle fracture face by tensile fracture.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：制造诸如连杆的热锻部件，其特征在于：材料被适当地控制以具有低延展性同时保持所需的强度; 原料热成型为整体状态; 当材料在常温下受到拉伸断裂时，所得到的材料显示平坦的脆性断裂面; 当断裂和分裂的部分再次结合时，它们可以容易地对接; 并且可以对材料进行诸如制造螺栓孔的加工，而不使用影响全球环境的诸如Pb的元素。解决方案：该组分具有铁素体单相结构，并且包含具有<10nm晶粒直径并在铁素体相中分散和沉淀的细微沉淀物。钢组成以质量％计含有≤0.15％C，≤1％Si，≤2％Mn，0.03〜0.35％Ti，0.05〜0.8％Mo，余量为Fe和不可避免的杂质，≥600N / SP> 2 屈服应力和≥0.85屈服比，通过拉伸断裂显示脆性断裂面。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004027297A Sulfur and sulfur composite free-cutting steel having excellent machinability less in surface defect 有权
公开(公告)号：JP2004027297A
公开(公告)日：2004-01-29
申请号：JP2002185496
申请日：2002-06-26
申请人： Kiyohito Ishida , National Institute Of Advanced Industrial & Technology , Nkk Bars & Shapes Co Ltd , エヌケーケー条鋼株式会社 , 独立行政法人産業技術総合研究所 , 石田清仁
发明人： MURAKAMI TOSHIYUKI , SHIRAGAMI TETSUO , ISHIDA KIYOHITO , OIKAWA MASANARI
IPC分类号： C22C38/00 , C22C38/38 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a low carbon S-Cr-Mn composite free-cutting steel which has excellent machinability including treatability of chips and surface roughness as compared with the conventional steel having the same sulfur content and lead content even if the content of oxygen is reduced as compared with the conventional one.
SOLUTION: The free-cutting steel has a composition comprising, by mass, 0.16 to 0.49% S, 0.002 to 0.010% O, 0.02 to 0.015% C, 0.05 to 1.8% Mn and 0.3 to 2.3% Cr, and has a structure where, in sulfide inclusions having a particle diameter of ≥10 μm in a major axis, the ratio of the ones having an aspect ratio of ≤5 accounts for ≥80%.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2004027296A Low-carbon sulfur composite free-cutting steel having excellent machinability 有权
公开(公告)号：JP2004027296A
公开(公告)日：2004-01-29
申请号：JP2002185495
申请日：2002-06-26
申请人： Kiyohito Ishida , National Institute Of Advanced Industrial & Technology , Nkk Bars & Shapes Co Ltd , エヌケーケー条鋼株式会社 , 独立行政法人産業技術総合研究所 , 石田清仁
发明人： MURAKAMI TOSHIYUKI , SHIRAGAMI TETSUO , ISHIDA KIYOHITO , OIKAWA MASANARI
IPC分类号： C22C38/00 , C22C38/18 , C22C38/32
摘要： PROBLEM TO BE SOLVED: To provide a low-carbon sulfur composite free-cutting steel which has excellent machinability including treatability of chips and surface roughness by providing it with a composition of an S-Cr-Mn composite system even if the contents of lead and sulfur are equal to the conventional amounts to be added.
SOLUTION: The steel has a composition comprising, by mass, 0.02 to 0.15% C, 0.05 to 1.00% Mn, 0.20 to 0.49% S, >0.008 to 0.030% O, 0.04 to 0.35% Pb and 0.3 to 2.3% Cr, and the balance Fe with inevitable impurities, and also satisfying a Cr/S ratio of 2 to 6.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003321743A High strength bolt having excellent delayed fracture characteristics and production method therefor 有权
$High strength bolt having excellent delayed fracture characteristics and production method therefor$
标题翻译：具有优异延迟断裂特性的高强度螺栓及其生产方法
公开(公告)号：JP2003321743A
公开(公告)日：2003-11-14
申请号：JP2002125405
申请日：2002-04-26
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Nkk Bars & Shapes Co Ltd , エヌケーケー条鋼株式会社
发明人： MURAKAMI TOSHIYUKI , SHIRAGAMI TETSUO , TOMITA KUNIKAZU , FUNAKAWA YOSHIMASA , SHIOZAKI TAKESHI
IPC分类号： C21D8/06 , C21D9/00 , C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high strength bolt which has delayed fracture characteristics, and to provide a production method therefor.
SOLUTION: The high strength bolt has a tempered martensite single phase structure in which fine precipitates with a particle diameter of 0.5°C/sec to form bar steel. The bar steel is formed into a bolt. The bolt is thereafter quenched, and is subsequently held at 550 to 700°C for ≥10 min.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供具有延迟断裂特性的高强度螺栓，并提供其制造方法。解决方案：高强度螺栓具有回火马氏体单相结构，其中粒径<10nm的细微析出物分散沉淀到回火马氏体相中。所述螺栓以质量计包含≤0.35％的C，≤0.50％的Si，0.1〜2％的Mn，0.03〜0.20％的Ti和0.05〜0.6％的Mo，还有一种或多种选自≤0.08％的Nb，≤ 0.15％V和≤1.5％W，选自0.01至0.3％Cu，0.05至1.0％Ni，0.01至0.3％Cr和0.0003至0.003％B的一种或多种金属，余量为Fe与不可避免的杂质，其中满足0.5≤（C / 12）/ä（Ti / 48）+（Mo / 96）+（Nb / 93）+（V / 51）+（W / 192）}≤5。将具有上述组成的钢加热至≥1,100℃，然后在≥800℃的精轧温度下进行轧制。随后，以550℃〜700℃，> 0.5℃/秒的速度进行冷却，形成棒钢。钢筋形成螺栓。然后将螺栓骤冷，随后在550〜700℃保持≥10分钟。版权所有（C）2004，JPO

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