KR20230159857A - 고온 침탄 기어 샤프트용 스틸 및 그 제조방법 - Google Patents

고온 침탄 기어 샤프트용 스틸 및 그 제조방법 Download PDF

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Publication number
KR20230159857A
KR20230159857A KR1020237035842A KR20237035842A KR20230159857A KR 20230159857 A KR20230159857 A KR 20230159857A KR 1020237035842 A KR1020237035842 A KR 1020237035842A KR 20237035842 A KR20237035842 A KR 20237035842A KR 20230159857 A KR20230159857 A KR 20230159857A
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South Korea
Prior art keywords
steel
temperature
gear shaft
present
rolling
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Ceased
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KR1020237035842A
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English (en)
Korean (ko)
Inventor
식신 자오
지아치앙 가오
종저 후앙
Original Assignee
바오샨 아이론 앤 스틸 유한공사
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Publication of KR20230159857A publication Critical patent/KR20230159857A/ko
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065—
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Steel (AREA)
  • Gears, Cams (AREA)
KR1020237035842A 2021-04-29 2022-04-19 고온 침탄 기어 샤프트용 스틸 및 그 제조방법 Ceased KR20230159857A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202110478480.2 2021-04-29
CN202110478480.2A CN115261715A (zh) 2021-04-29 2021-04-29 一种高温渗碳齿轴用钢及其制造方法
PCT/CN2022/087739 WO2022228216A1 (zh) 2021-04-29 2022-04-19 一种高温渗碳齿轴用钢及其制造方法

Publications (1)

Publication Number Publication Date
KR20230159857A true KR20230159857A (ko) 2023-11-22

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KR1020237035842A Ceased KR20230159857A (ko) 2021-04-29 2022-04-19 고온 침탄 기어 샤프트용 스틸 및 그 제조방법

Country Status (7)

Country Link
US (1) US20240360538A1 (https=)
EP (1) EP4310216A4 (https=)
JP (1) JP7750982B2 (https=)
KR (1) KR20230159857A (https=)
CN (1) CN115261715A (https=)
CA (1) CA3217486A1 (https=)
WO (1) WO2022228216A1 (https=)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115838860A (zh) * 2022-11-11 2023-03-24 太原科技大学 一种机床主轴20CrMnTi钢的深冷处理工艺
CN115927962A (zh) * 2022-12-05 2023-04-07 宝武杰富意特殊钢有限公司 芯棒用钢及其制备方法
CN116162781A (zh) * 2022-12-28 2023-05-26 江阴全华丰精锻有限公司 温锻锥齿轮控温冷却工艺
CN115976425B (zh) * 2023-01-04 2025-03-14 上海纳铁福传动系统有限公司 一种避免低合金钢的温锻渗碳混晶缺陷的渗碳淬火工艺
CN115971243A (zh) * 2023-02-05 2023-04-18 新疆八一钢铁股份有限公司 一种控制20CrMnTi热轧状态硬度的轧制方法
JP7747083B2 (ja) * 2023-02-13 2025-10-01 Ｊｆｅスチール株式会社 切削浸炭用鋼材及び切削浸炭用鋼材の製造方法
CN116254470B (zh) * 2023-02-17 2025-10-17 山东钢铁股份有限公司 一种Nb-Ti微合金化Cr-Mn系齿轮钢及其制备方法
CN116356206B (zh) * 2023-03-28 2025-09-05 马鞍山钢铁股份有限公司 大规格高静扭强度输出齿轮用钢及其制造方法、渗碳方法
CN118835178B (zh) * 2023-04-23 2025-10-17 宝山钢铁股份有限公司 一种低淬透性窄带宽的Mn-Cr系齿轮圆钢及其制造方法
CN116590613B (zh) * 2023-04-26 2025-09-19 马鞍山钢铁股份有限公司 一种耐低温渗碳冷精锻齿轮钢及其周期球化退火方法和生产方法
CN119162514B (zh) * 2023-06-19 2026-01-20 宝山钢铁股份有限公司 一种高强韧高淬透性齿轴用钢及其制造方法
CN119177396B (zh) * 2023-06-21 2026-01-16 宝山钢铁股份有限公司 一种高强韧高温渗碳齿轴用钢及其制造方法
CN117327989B (zh) * 2023-09-06 2025-12-26 江阴兴澄特种钢铁有限公司 一种多用途汽车变速箱齿轮用钢及其制造方法
CN117488174A (zh) * 2023-11-23 2024-02-02 南京钢铁股份有限公司 一种新能源汽车用高温渗碳齿轮钢的制造方法
CN118127430B (zh) * 2024-02-23 2026-03-17 马鞍山钢铁有限公司 一种新能源汽车用高表面硬度齿轮钢及其生产方法和热处理工艺
CN118007017A (zh) * 2024-03-26 2024-05-10 湖南华菱湘潭钢铁有限公司 一种变速器齿轮用钢的生产方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3725666B2 (ja) * 1997-08-05 2005-12-14 新日本製鐵株式会社 浸炭軸状部品の製造方法
JP3804041B2 (ja) * 2000-03-28 2006-08-02 新日本製鐵株式会社 高温浸炭特性に優れた高温浸炭用鋼ならびに高温浸炭用熱間鍛造部材
JP3738004B2 (ja) 2002-12-24 2006-01-25 新日本製鐵株式会社 冷間加工性と浸炭時の粗大粒防止特性に優れた肌焼用鋼材とその製造方法
JP4175933B2 (ja) * 2003-03-28 2008-11-05 愛知製鋼株式会社 短時間の窒化処理で高い表面硬さと深い硬化深さの得られる窒化鋼部品及びその製造方法
KR100551588B1 (ko) * 2004-03-24 2006-02-13 주식회사 세아베스틸 충격인성이 우수한 고온 침탄용강
JP5121123B2 (ja) * 2005-03-14 2013-01-16 山陽特殊製鋼株式会社 耐粗粒化特性に優れた高温浸炭用鋼及びその製法並びに高温浸炭用素形品およびその浸炭焼入れ方法
JP2006291335A (ja) 2005-04-14 2006-10-26 Kobe Steel Ltd 高温浸炭特性と加工性に優れた肌焼用鋼
JP4706911B2 (ja) * 2005-07-29 2011-06-22 三菱マテリアル株式会社 合金鋼の高速歯切加工で硬質被覆層がすぐれた耐摩耗性を発揮する表面被覆超硬合金製歯切工具
JP4688735B2 (ja) 2006-06-01 2011-05-25 株式会社神戸製鋼所 高温浸炭時の結晶粒粗大化防止特性に優れた熱間圧延材
KR20090037631A (ko) * 2007-10-12 2009-04-16 주식회사 세아베스틸 내피로특성이 우수한 고온 진공 침탄용 고강도강
JP5643622B2 (ja) * 2010-11-30 2014-12-17 株式会社神戸製鋼所 肌焼鋼、およびこれを用いた機械構造部品
WO2012102233A1 (ja) 2011-01-25 2012-08-02 住友金属工業株式会社 浸炭または浸炭窒化用の鋼
CN102560255B (zh) * 2012-01-31 2014-10-08 宝钢特钢有限公司 一种高温真空渗碳齿轮用钢
CN103361559B (zh) * 2013-07-18 2016-06-29 首钢总公司 一种Nb、Ti复合微合金化高温渗碳齿轮钢
JP2016169433A (ja) 2015-03-13 2016-09-23 株式会社神戸製鋼所 冷間加工性と浸炭熱処理後の靱性に優れる浸炭用鋼板
CN104946991A (zh) * 2015-05-14 2015-09-30 机械科学研究院浙江分院有限公司 一种高温快速渗碳汽车用齿轮钢
JP6623686B2 (ja) * 2015-10-30 2019-12-25 日本製鉄株式会社 製品部材の製造方法及び製品部材
CN106967925B (zh) * 2017-03-21 2019-12-03 马钢(集团)控股有限公司 一种具有细晶粒窄淬透性带宽的高温渗碳齿轮钢
CN108866439B (zh) * 2018-07-16 2020-07-24 东北大学 一种Nb、Ti复合微合金化高温真空渗碳重载齿轮用钢
CN109402498B (zh) * 2018-08-29 2020-08-28 宝钢特钢韶关有限公司 一种高温渗碳齿轮钢及其制造方法
CN111286671B (zh) * 2020-02-28 2021-06-29 江阴兴澄特种钢铁有限公司 一种超纯净高温细晶粒齿轮钢、制造方法及其应用
CN111850412A (zh) * 2020-08-03 2020-10-30 苏州亚太金属有限公司 一种渗碳齿轮用钢材料及其制备方法
CN112322997A (zh) * 2020-11-13 2021-02-05 江苏联峰能源装备有限公司 一种高温渗碳汽车齿轮钢及其生产工艺

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JP2024515134A (ja) 2024-04-04
WO2022228216A1 (zh) 2022-11-03
EP4310216A4 (en) 2025-01-15
US20240360538A1 (en) 2024-10-31
EP4310216A1 (en) 2024-01-24
CA3217486A1 (en) 2022-11-03
JP7750982B2 (ja) 2025-10-07
CN115261715A (zh) 2022-11-01

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