KR960023176A - Chisel steel and its manufacturing method - Google Patents

Chisel steel and its manufacturing method Download PDF

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Publication number
KR960023176A
KR960023176A KR1019940040152A KR19940040152A KR960023176A KR 960023176 A KR960023176 A KR 960023176A KR 1019940040152 A KR1019940040152 A KR 1019940040152A KR 19940040152 A KR19940040152 A KR 19940040152A KR 960023176 A KR960023176 A KR 960023176A
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KR
South Korea
Prior art keywords
weight
manufacturing
steel
less
ppm
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Application number
KR1019940040152A
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Korean (ko)
Inventor
이영수
김대용
윤용구
Original Assignee
석진철
대우중공업 주식회사
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Application filed by 석진철, 대우중공업 주식회사 filed Critical 석진철
Priority to KR1019940040152A priority Critical patent/KR960023176A/en
Publication of KR960023176A publication Critical patent/KR960023176A/en

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  • Forging (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

본 발명은 굴삭기의 치즐용 강 및 그 제조방법에 관한 것으로, C : 0.3∼0.4중량%, Si : 0.2∼0.45중량%, Mn : 0.8∼1.2중량%, P : 0.03중량% 이하, Si : 0.015중량% 이하, Cr : 0.8∼1.5중량%, B : 10∼30ppm, Total·O2: 15ppm, Total·N2: 20ppm 이하를 함유하고, 나머지가 Fe로 조성된 소재를 1200∼1300℃에서 가열하고, 원형강으로 단조, 압연한 후 이를 소정의 형상으로 기계가공하여 820∼880℃에서 소입한 뒤, 300∼500℃에서 소려하여 얻어지게되는 것으로 종래의 강에 비해 내외부의 기계적 성질이 균일할 뿐아니라 내마모성이 우수하고 균열발생이 줄어들고 인성이 우수하여 굴삭기의 치즐을 제조하는 데 적합한 것이다.The present invention relates to a steel for a chisel of an excavator and a manufacturing method thereof, C: 0.3 to 0.4% by weight, Si: 0.2 to 0.45% by weight, Mn: 0.8 to 1.2% by weight, P: 0.03% by weight or less, Si: 0.015 A material containing not more than% by weight, Cr: 0.8 to 1.5% by weight, B: 10 to 30 ppm, Total · O 2 : 15 ppm, and Total · N 2 : 20 ppm or less, and the remainder composed of Fe is heated at 1200 to 1300 ° C. After forging and rolling with circular steel, it is machined into a predetermined shape and hardened at 820 to 880 ° C, and it is obtained by considering it at 300 to 500 ° C. In addition, it is suitable for manufacturing chisels of excavators because of its high wear resistance, reduced cracking and excellent toughness.

Description

치즐(chisel)용 강(鋼)과 그 제조방법Chisel steel and its manufacturing method

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

Claims (2)

C : 0.3∼0.4중량%, Si : 0.2∼0.45중량%, Mn : 0.8∼1.2중량%, P : 0.03중량% 이하, Si : 0.015중량% 이하, Cr : 0.8∼1.5중량%, B : 10∼30ppm, Total·O2: 15ppm, Total·N2: 20ppm 이하를 함유하고, 나머지가 Fe로 조성된 치즐용 강.C: 0.3 to 0.4 wt%, Si: 0.2 to 0.45 wt%, Mn: 0.8 to 1.2 wt%, P: 0.03 wt% or less, Si: 0.015 wt% or less, Cr: 0.8 to 1.5 wt%, B: 10 to Steel for chisels containing 30ppm, TotalO 2 : 15ppm, TotalN 2 : 20ppm or less, and the remainder composed of Fe. 제1항과 같은 조성성분으로 이루어진 소재를 1200∼1300℃에서 가열하고, 원형강으로 단조, 압연한 후 이를 소정의 형상으로 기계가공하여 820∼880℃에서 소입한 뒤, 300∼500℃에서 소려하게 되는 치즐용 강의 제조방법.The raw material consisting of the composition as described in claim 1 is heated at 1200 to 1300 ° C, forged and rolled into circular steel, then machined into a predetermined shape and quenched at 820 to 880 ° C, followed by 300 to 500 ° C. Method of manufacturing steel for chisels. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940040152A 1994-12-30 1994-12-30 Chisel steel and its manufacturing method KR960023176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940040152A KR960023176A (en) 1994-12-30 1994-12-30 Chisel steel and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940040152A KR960023176A (en) 1994-12-30 1994-12-30 Chisel steel and its manufacturing method

Publications (1)

Publication Number Publication Date
KR960023176A true KR960023176A (en) 1996-07-18

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KR1019940040152A KR960023176A (en) 1994-12-30 1994-12-30 Chisel steel and its manufacturing method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100824937B1 (en) * 2006-08-26 2008-04-28 주식회사 세우엠아이씨 Method for manufacturing chisel
KR100938839B1 (en) * 2009-05-26 2010-01-26 김성회 Excavator bucket for coating hardfacing composition
KR101509589B1 (en) * 2015-01-30 2015-04-07 박영견 Method for upset forging of rod end

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100824937B1 (en) * 2006-08-26 2008-04-28 주식회사 세우엠아이씨 Method for manufacturing chisel
KR100938839B1 (en) * 2009-05-26 2010-01-26 김성회 Excavator bucket for coating hardfacing composition
KR101509589B1 (en) * 2015-01-30 2015-04-07 박영견 Method for upset forging of rod end

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