KR970043140A - 유압브레이커 치즐용 재료의 제조방법 - Google Patents

유압브레이커 치즐용 재료의 제조방법 Download PDF

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Publication number
KR970043140A
KR970043140A KR1019950069221A KR19950069221A KR970043140A KR 970043140 A KR970043140 A KR 970043140A KR 1019950069221 A KR1019950069221 A KR 1019950069221A KR 19950069221 A KR19950069221 A KR 19950069221A KR 970043140 A KR970043140 A KR 970043140A
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South Korea
Prior art keywords
hydraulic breaker
breaker chisel
raw material
manufacturing
producing
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KR1019950069221A
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English (en)
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KR0162964B1 (ko
Inventor
전철진
최학희
고승운
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석진철
대우중공업 주식회사
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Priority to KR1019950069221A priority Critical patent/KR0162964B1/ko
Publication of KR970043140A publication Critical patent/KR970043140A/ko
Application granted granted Critical
Publication of KR0162964B1 publication Critical patent/KR0162964B1/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
    • C21D5/00—Heat treatments of cast-iron
    • C21D5/02—Heat treatments of cast-iron improving the malleability of grey cast-iron
    • 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
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/08—Making cast-iron alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/04—Cast-iron alloys containing spheroidal graphite
    • 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
    • C21D2211/001—Austenite
    • 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
    • C21D2211/002—Bainite

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

본 발명은 유압브레이커 치즐용 재료의 제조방법에 관한 것으로, 화학조성이 탄소: 2.8-3.4wt%, 규소: 2.0-2.5wt%, 망간: 0.3wt%이하, 니켈: 1.0-3.0wt%, 몰리브덴: 0.1-0.3wt%, 구리: 0.5-2.0wt%를 함유하고, 잔부는 Fe로 이루어진 구상흑연주철 원소재를 소정의 열처리과정을 하게 된 것으로, 상부베이나이트와 잔류오스테나이트가 혼합된 기지조직중에 구상흑연조직을 갖게 되어, 고강도/고인성과 내마모특성을 동시에 얻을 수 있어 유압브레이커용 치중로 사용하기에 적당한 것이다.

Description

유압브레이커 치즐용 재료의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래의 유압브레이커 치즐용 재료의 조직단면을 400배 확대한 사진,
제2도는 본 발명에 따른 유압브레이커 치즐용 재료의 조직단면을 400배 확대한 사진이다.

Claims (4)

  1. 구상흑연주철 원소재를 500-600℃에서 예열하고, 900-930℃에서 오스테나이트화 가열하며, 이어서 380-420℃로 급랭시켜 오스템퍼링 항온 열처리를 하게 된 유압브레이커 치즐용 재료의 제조방법
  2. 제1항에 있어서, 상기 예열 및 오스테나이트 가열을 불활성 분위기로에서 실시하는 현편, 오스템퍼링 항온 열처리는 염욕로에서 하게 된 것을 특징으로 하는 유압브레이커 치즐용 재료의 제조방법
  3. 제1항에 있어서, 상기 구상흑연주철 원소재가, 탄소: 2.8-3.4wt%, 규소: 2.0-2.5wt%, 망간: 0.3wt%이하, 니켈: 1.0-3.0wt%, 몰리브덴: 0.1-0.3wt%를 함유하고, 잔부는 Fe로 이루어진 것을 특징으로 하는 유압브레이커 치즐용 재료의 제조방법
  4. 제3항에 있어서, 원소재가 구리: 0.5-2.0wt%를 포함하게 된 것을 특징으로 하는 유압브레이커 치즐용 재료의 제조방법
KR1019950069221A 1995-12-30 1995-12-30 유압브레이커 치즐용 재료의 제조방법 KR0162964B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950069221A KR0162964B1 (ko) 1995-12-30 1995-12-30 유압브레이커 치즐용 재료의 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950069221A KR0162964B1 (ko) 1995-12-30 1995-12-30 유압브레이커 치즐용 재료의 제조방법

Publications (2)

Publication Number Publication Date
KR970043140A true KR970043140A (ko) 1997-07-26
KR0162964B1 KR0162964B1 (ko) 1999-01-15

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ID=19448357

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950069221A KR0162964B1 (ko) 1995-12-30 1995-12-30 유압브레이커 치즐용 재료의 제조방법

Country Status (1)

Country Link
KR (1) KR0162964B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9409203B2 (en) 2012-02-03 2016-08-09 Samsung Display Co., Ltd. Device for manufacture including a deposition mask

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9409203B2 (en) 2012-02-03 2016-08-09 Samsung Display Co., Ltd. Device for manufacture including a deposition mask

Also Published As

Publication number Publication date
KR0162964B1 (ko) 1999-01-15

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