KR950025113A - Carburized Gear Steel - Google Patents

Carburized Gear Steel Download PDF

Info

Publication number
KR950025113A
KR950025113A KR1019940033589A KR19940033589A KR950025113A KR 950025113 A KR950025113 A KR 950025113A KR 1019940033589 A KR1019940033589 A KR 1019940033589A KR 19940033589 A KR19940033589 A KR 19940033589A KR 950025113 A KR950025113 A KR 950025113A
Authority
KR
South Korea
Prior art keywords
carburizing
steel
tempering
quenching
less
Prior art date
Application number
KR1019940033589A
Other languages
Korean (ko)
Other versions
KR0141048B1 (en
Inventor
가즈오 사카모토
다쓰오 후쿠즈미
히데오 우에노
Original Assignee
이와사끼 시게오
미쓰비시 세이코오 가부시끼가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이와사끼 시게오, 미쓰비시 세이코오 가부시끼가이샤 filed Critical 이와사끼 시게오
Publication of KR950025113A publication Critical patent/KR950025113A/en
Application granted granted Critical
Publication of KR0141048B1 publication Critical patent/KR0141048B1/en

Links

Classifications

    • 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
    • C22C38/001—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
    • C22C38/18—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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

중량%로 C 0.18~0.25%, Si 0.45~1.00%, Mn 0.40~0.70%, Ni 0.30~0.70%, Cr 1.00~1.50%, MO 0.30~0.70%, Cu 0.50%이하, Al 0.015~0.030%, V 0.03~0.30%, Nb 0.010~0.030%, O 0.0015%이하, N 0.0100~0.0200%이고, 나머지가 Fe 및 불가피한 불순물로 구성되며, 침탄후의 820℃이상에서 담금질하여도, 침탄강 중심부의 경화된 조직에 페라이트를 형성하는 일이 없으며, 담금질후 160~180℃의 온도로 뜨임을 행하고, 이 뜨임온도를 포함하여 300℃까지의 온도중 어느 하나의 온도로 재가열하여서, 침탄, 담금질 및 뜨임후 침탄강의 침단층의 강도가 HV 50이상까지 감소되지 않는 것을 특징으로 하는 연화저항을 갖는 침탄기어용강.By weight% C 0.18 ~ 0.25%, Si 0.45 ~ 1.00%, Mn 0.40 ~ 0.70%, Ni 0.30 ~ 0.70%, Cr 1.00 ~ 1.50%, MO 0.30 ~ 0.70%, Cu 0.50% or less, Al 0.015 ~ 0.030%, V 0.03 ~ 0.30%, Nb 0.010 ~ 0.030%, O 0.0015% or less, N 0.0100 ~ 0.0200%, the remainder is composed of Fe and unavoidable impurities, and hardened at the center of the carburized steel even if quenched at 820 ℃ or higher after carburizing There is no formation of ferrite in the tissue, and after quenching, tempering is performed at a temperature of 160 to 180 ° C, and reheating to any one of temperatures up to 300 ° C including this tempering temperature, thereby carburizing, quenching and carburizing after tempering Carburizing gear steel having a softening resistance, characterized in that the strength of the steel sedimentation layer is not reduced to more than HV 50.

Description

침탄기어용강Carburized Gear Steel

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 재가열실험에 적용되는 열처리조건의 설명도,2 is an explanatory diagram of heat treatment conditions applied to the reheating test,

제3도는 재가열후의 경도감소 및 Si함유량의 관계를 나타내는 그래프.3 is a graph showing the relationship between the decrease in hardness and the Si content after reheating.

Claims (2)

중량%로 C 0.18~0.25%, Si 0.45~1.00%, Mn 0.40~0.70%, Ni 0.30~0.70%, Cr 1.00~1.50%, MO 0.30~0.70%, Cu 0.50%이하, Al 0.015~0.030%, V 0.03~0.30%, Nb 0.010~0.030%, O 0.0015%이하, N 0.0100~0.0200%이고, 나머지가 Fe 및 불가피한 불순물로 구성되며, 침탄후의 820℃이상에서 담금질하여도, 침탄강 중심부의 경화된 조직에 페라이트를 형성하는 일이 없으며, 담금질후 160~180℃의 온도로 뜨임을 행하고, 이 뜨임온도를 포함하여 300℃까지의 온도중 어느 하나의 온도로 재가열하여서, 침탄, 담금질 및 뜨임후 침탄강의 침단층의 깅도가 HV 50이상까지 감소되지 않는 것을 특징으로 하는 연화저항을 갖는 침탄기어용강.By weight% C 0.18 ~ 0.25%, Si 0.45 ~ 1.00%, Mn 0.40 ~ 0.70%, Ni 0.30 ~ 0.70%, Cr 1.00 ~ 1.50%, MO 0.30 ~ 0.70%, Cu 0.50% or less, Al 0.015 ~ 0.030%, V 0.03 ~ 0.30%, Nb 0.010 ~ 0.030%, O 0.0015% or less, N 0.0100 ~ 0.0200%, the remainder is composed of Fe and unavoidable impurities, and hardened at the center of the carburized steel even if quenched at 820 ℃ or higher after carburizing There is no formation of ferrite in the tissue, and after quenching, tempering is performed at a temperature of 160 to 180 ° C, and reheating to any one of temperatures up to 300 ° C including this tempering temperature, thereby carburizing, quenching and carburizing after tempering Carburizing gear steel having a softening resistance, characterized in that the ging degree of the steel sedimentation layer is not reduced to HV 50 or more. 제1항에 있어서, 소재중에 그 피로특성을 현저하게 손상시키지 않고 강의 절삭성을 개선할 수 잇는 원소로서, 중량%로 S 0.005~0.020%, Pb 0.03~0.09% 및 Te 0.003~0.030%로 이루어지는 군으로부터 선택된 적어도 1종을 더욱 포함하는 것을 특징으로 하는 침탄기어용강.The material according to claim 1, which is an element capable of improving the machinability of steel without significantly impairing its fatigue characteristics in the material, comprising S 0.005 to 0.020%, Pb 0.03 to 0.09%, and Te 0.003 to 0.030% by weight. Carburized gear steel, characterized in that it further comprises at least one selected from. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940033589A 1994-02-03 1994-12-10 Steel for carburized gear KR0141048B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP94-30852 1994-02-03
JP3085294 1994-02-03

Publications (2)

Publication Number Publication Date
KR950025113A true KR950025113A (en) 1995-09-15
KR0141048B1 KR0141048B1 (en) 1998-07-15

Family

ID=12315250

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940033589A KR0141048B1 (en) 1994-02-03 1994-12-10 Steel for carburized gear

Country Status (2)

Country Link
KR (1) KR0141048B1 (en)
CA (1) CA2137744C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010066189A (en) * 1999-12-31 2001-07-11 이계안 Highly carbon carburizing steel
JP7154073B2 (en) * 2018-09-12 2022-10-17 大同特殊鋼株式会社 High surface pressure resistant parts and manufacturing method thereof
CN110284071A (en) * 2019-08-02 2019-09-27 宜兴市佳信数控科技有限公司 A kind of rotary kiln super large gear and preparation method thereof

Also Published As

Publication number Publication date
CA2137744A1 (en) 1995-08-04
CA2137744C (en) 1999-08-31
KR0141048B1 (en) 1998-07-15

Similar Documents

Publication Publication Date Title
US5424028A (en) Case carburized stainless steel alloy for high temperature applications
KR950704521A (en) Process for producing hot forging steel with excellent fatigue strength, yield strength and cuttability
KR830009235A (en) Manufacturing method of high ductility, high strength wire rod, steel bar
US4157258A (en) Case-hardening alloy steel and case-hardened article made therefrom
KR960706569A (en) High corrosion resistance martensitic stainless steel with excellent weldability and manufacturing method
KR950006006A (en) Steel for manufacturing machine, excellent in machinability, cold forging and fatigue strength characteristics after quenching and tempering
Kapadia Effect of boron additions on the toughness of heat-treated low-alloy steels
KR950025113A (en) Carburized Gear Steel
KR960705953A (en) Bainite steel with little scattering and manufacturing method
US3492116A (en) Heat treatable alloy steels
JPS6360257A (en) Carburizing steel having superior pitting resistance
KR920019949A (en) Continuous heat treatment method of oil tempered steel wire material for high strength high toughness spring
GB1070465A (en) Weldable tough steel containing chromium and manganese and method of manufacturing the same
KR920012498A (en) Manufacturing method of welding steel with excellent stress corrosion cracking resistance
PT902094E (en) METHOD FOR THE MANUFACTURE OF A MECHANICAL PEC IN ACTION BEING PERFORMED BY AT LEAST A SURFACE HARDENED PART FOR TREATMENT OF TEMPERATURE BY INDUCTION AND PECE OBTAINED THROUGH THAT PROCESS
JPH028020B2 (en)
KR890010234A (en) High strength steel manufacturing method with excellent strength, wear resistance and corrosion resistance
JPH0762203B2 (en) High strength, high toughness, hot forged non-heat treated steel
JP2004300550A (en) High-strength case hardening steel
JPS61174321A (en) Spheroidizing annealing method of machine structural steel
JPS58151455A (en) Bearing member
JPH0759737B2 (en) High toughness high carbon thin steel plate
JPH0533283B2 (en)
JPH0762212B2 (en) High carbon thin steel sheet with high toughness and heat crack resistance
KR950006016A (en) Hot die tool steel and manufacturing method

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130227

Year of fee payment: 16

FPAY Annual fee payment

Payment date: 20140220

Year of fee payment: 17

EXPY Expiration of term