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KR970074952A - 냉간압조성이 우수한 저탄소강 선재의 구상화 열처리방법 - Google Patents

냉간압조성이 우수한 저탄소강 선재의 구상화 열처리방법 Download PDF

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Publication number
KR970074952A
KR970074952A KR1019960017569A KR19960017569A KR970074952A KR 970074952 A KR970074952 A KR 970074952A KR 1019960017569 A KR1019960017569 A KR 1019960017569A KR 19960017569 A KR19960017569 A KR 19960017569A KR 970074952 A KR970074952 A KR 970074952A
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South Korea
Prior art keywords
heat treatment
steel wire
carbon steel
low carbon
treatment method
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KR1019960017569A
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English (en)
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KR100268846B1 (ko
Inventor
유선준
박성운
Original Assignee
김종진
포항종합제철 주식회사
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Priority to KR1019960017569A priority Critical patent/KR100268846B1/ko
Publication of KR970074952A publication Critical patent/KR970074952A/ko
Application granted granted Critical
Publication of KR100268846B1 publication Critical patent/KR100268846B1/ko

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    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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
    • C21D1/32—Soft annealing, e.g. spheroidising
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
    • 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
    • C21D2211/003—Cementite

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

본 발명은 냉간압조성이 우수한 저탄소강 선재의 구상화 열처리방법에 관한 것으로, 보다 상세하게는 저탄소강 선재 표면의 스케일을 박리하여 피막처리 후 신선가공을 한 다음 구상화 열처리를 행하는 방법에 있어서, 신선가공한 저탄소강 선재를 790∼820℃의 온도범위에서 1∼3시간 열처리하여 세멘타이트를 구상화시킨 후 650℃까지 시간당 15℃의 냉각속도로 냉각하는 것을 특징으로 하는 냉간압조성이 우수한 저탄소강 선재의 구상화 열처리방법에 관한 것이다.

Description

냉간압조성이 우수한 저탄소강 선재의 구상화 열처리방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 저탄소강 냉간압조용 소재의 제조공정도, 제4도는 열처리 시간의 변경에 의한 발명재와 비교재의 미세경도의 비교 그래프.

Claims (1)

  1. 저탄소강 선재 표면의 스케일을 박리하여 피막처리후 신선가공을 한 다음 구상화 열처리를 행하는 방법에 있어서, 신선가공한 저탄소강 선재를 790∼820℃의 온도범위에서 1∼3시간 열처리하여 세멘타이트를 구상화시킨 루 650℃까지 시간당 15℃의 냉각속도로 냉각하는 것을 특징으로 하는 냉간압조성이 우수한 저탄소강 선재의 구상화 열처리방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960017569A 1996-05-22 1996-05-22 냉간압조성이 우수한 저탄소강선재의 구상화 열처리방법 KR100268846B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960017569A KR100268846B1 (ko) 1996-05-22 1996-05-22 냉간압조성이 우수한 저탄소강선재의 구상화 열처리방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960017569A KR100268846B1 (ko) 1996-05-22 1996-05-22 냉간압조성이 우수한 저탄소강선재의 구상화 열처리방법

Publications (2)

Publication Number Publication Date
KR970074952A true KR970074952A (ko) 1997-12-10
KR100268846B1 KR100268846B1 (ko) 2000-10-16

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Application Number Title Priority Date Filing Date
KR1019960017569A KR100268846B1 (ko) 1996-05-22 1996-05-22 냉간압조성이 우수한 저탄소강선재의 구상화 열처리방법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100493965B1 (ko) * 2002-08-19 2005-06-13 주식회사 코우 리트랙터용 토션바의 제조방법

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100464962B1 (ko) * 2001-09-14 2005-01-05 삼화강봉주식회사 냉간압조 특성이 우수한 조질 강선

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61153230A (ja) * 1984-12-26 1986-07-11 Kawasaki Steel Corp 迅速球状化が可能な低合金鋼線材の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100493965B1 (ko) * 2002-08-19 2005-06-13 주식회사 코우 리트랙터용 토션바의 제조방법

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