KR970025775A - 열간단조용 비조질강에 의한 고장력 너트의 제조방법 - Google Patents

열간단조용 비조질강에 의한 고장력 너트의 제조방법 Download PDF

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Publication number
KR970025775A
KR970025775A KR1019960001520A KR19960001520A KR970025775A KR 970025775 A KR970025775 A KR 970025775A KR 1019960001520 A KR1019960001520 A KR 1019960001520A KR 19960001520 A KR19960001520 A KR 19960001520A KR 970025775 A KR970025775 A KR 970025775A
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KR
South Korea
Prior art keywords
steel
manufacturing
unconditioned
cooling
high tension
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KR1019960001520A
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English (en)
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KR100232722B1 (ko
Inventor
김종국
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유성용
동아건설산업 주식회사
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Priority to KR1019960001520A priority Critical patent/KR100232722B1/ko
Publication of KR970025775A publication Critical patent/KR970025775A/ko
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Publication of KR100232722B1 publication Critical patent/KR100232722B1/ko

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/64—Making machine elements nuts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • 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
    • C22C38/44—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
    • C22C38/50—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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

목적
열간단조용 비조질강에 의한 고장력 너트의 제조방법.
구성
극소량의 탄소(C), 실리콘(Si), 망간(Mn), 크롬(Cr), 모리브뎅(Mo), 니켈(Ni), 바니디움(V), 티타늄(Ti), 알미늄(Al), 질소(N), 인(P), 유황(S)과 나머지 Fe(철)로 조성되는 강을 열간단조가 가능한 강편압연 혹은 봉강압연하여 주조 조직을 파괴한 상태로 처리후 1,100~1,300℃로 가열 후 900℃이상의 온도에서 단조를 실시하고 이후 450℃까지 150-200℃/Min의 냉각 속도로 시스템에 따라 냉각시킨 후 공냉함으로서 비조질강을 이용한 열간단조 및 냉각시스템의 고장력 너트를 제공하는 것임.

Description

열간단조용 비조질강에 의한 고장력 너트의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 설명하기 위한 공지의 공정도이며,
제2도는 본 발명에 있어 열간단조 공정을 설명하기 위한 각 시스템시진이며,
제3도는 비조질강과 비교강의 공정별 미세조직 현미경사진으로 (가)는 비조질강의 경우이며 현미경사진이며, (나)는 비교강(S45C)의 열간단조인 경우이며, (다)는 비교강(S45C)의 소입, 소려인 경우이다.

Claims (1)

  1. C:0.38-0.42%, Si:0.50-0.65%, Mn:0.80.-1.20%, Cr:0.14-0.20%, Mo:0.01-0.04%, Ni :0.02-0.10%, V:0.08-0.13%, Ti:0.02-0.04%, Al:0.03-0.05%, N:0.002-0.012%, P:0.030 이하, S:0.04-0.06중량%와 나머지 Fe의 화학성분으로 되는 열간 단조용 비조질강을 열간단조 가능한 장편압연 혹은 봉강압연하여 주조 조직을 파괴한 상태로 처리한 뒤 1,100∼1,200℃로 가열 후 900℃ 이상의 온도에서 단조를 실시하고 이후 450℃까지 150-200℃/Min의 냉각 속도로 시스템에 따라 냉각시킨 후 공냉시키는 것을 특징으로 하는 열간단조용 비조질강에 의한 고장력 너트의 제조방법.
    ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.
KR1019960001520A 1996-01-24 1996-01-24 열간단조(熱間鍛造)에 의한 고장력 너트의 제조방법 KR100232722B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960001520A KR100232722B1 (ko) 1996-01-24 1996-01-24 열간단조(熱間鍛造)에 의한 고장력 너트의 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960001520A KR100232722B1 (ko) 1996-01-24 1996-01-24 열간단조(熱間鍛造)에 의한 고장력 너트의 제조방법

Publications (2)

Publication Number Publication Date
KR970025775A true KR970025775A (ko) 1997-06-24
KR100232722B1 KR100232722B1 (ko) 1999-12-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960001520A KR100232722B1 (ko) 1996-01-24 1996-01-24 열간단조(熱間鍛造)에 의한 고장력 너트의 제조방법

Country Status (1)

Country Link
KR (1) KR100232722B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100952010B1 (ko) * 2007-11-14 2010-04-08 현대자동차주식회사 고강도 비조질강 조성물과 이를 이용한 커넥팅로드제조방법

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100940038B1 (ko) 2007-09-20 2010-02-04 주식회사 세아베스틸 충격 인성이 우수한 열간단조용 비조질강, 이의 제조방법및 이에 의해 제조된 자동차 샤시용 부품

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100952010B1 (ko) * 2007-11-14 2010-04-08 현대자동차주식회사 고강도 비조질강 조성물과 이를 이용한 커넥팅로드제조방법

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