KR940021745A - Method of manufacturing wear resistant steel sheet - Google Patents

Method of manufacturing wear resistant steel sheet Download PDF

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Publication number
KR940021745A
KR940021745A KR1019930005319A KR930005319A KR940021745A KR 940021745 A KR940021745 A KR 940021745A KR 1019930005319 A KR1019930005319 A KR 1019930005319A KR 930005319 A KR930005319 A KR 930005319A KR 940021745 A KR940021745 A KR 940021745A
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KR
South Korea
Prior art keywords
temperature
steel sheet
resistant steel
wear
temperature range
Prior art date
Application number
KR1019930005319A
Other languages
Korean (ko)
Other versions
KR950008691B1 (en
Inventor
이창호
이태영
Original Assignee
박득표
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Application filed by 박득표, 포항종합제철 주식회사, 백덕현, 재단법인산업과학기술연구소 filed Critical 박득표
Priority to KR1019930005319A priority Critical patent/KR950008691B1/en
Publication of KR940021745A publication Critical patent/KR940021745A/en
Application granted granted Critical
Publication of KR950008691B1 publication Critical patent/KR950008691B1/en

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Classifications

    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese

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

Abstract

본 발명은 토목, 건축 및 광산 등의 각종 산업기계에 적용될 수 있는 내마용 강판의 제조방법에 관한 것으로서, 본 발명은 저합금강 슬라브를 1150-1300℃의 온도범위로 가열한 후, 마무리 압연온도를 900℃ 이하로 하고 900℃ 이하인 온도에서의 전체압하율을 30% 이상으로 하여 열간압연을 실시한 다음, 120초 이내에서 상온까지 7℃/sec 이하인 온도에서의 전체압하율을 30% 이상으로 하여 열간압연을 실시한 다음, 120초 이내에서 상온까지 7℃/sec 이상의 평균냉각속도로 담금질한 후 200-350℃의 온도범위에서 뜨임처리하여 내마모용 강판을 제조하는 방법을 그 요지로 한다.The present invention relates to a method for producing a wear-resistant steel sheet that can be applied to various industrial machinery such as civil engineering, construction and mining, the present invention is to heat the low-alloy steel slab to a temperature range of 1150-1300 ℃, and then finish rolling temperature Hot rolling is carried out at a temperature of 900 ° C. or lower and a total reduction rate at a temperature of 900 ° C. or lower at 30% or more. After rolling, it is quenched at an average cooling rate of 7 ° C./sec or more from 120 seconds to room temperature, and then tempered at a temperature range of 200-350 ° C. to produce a wear-resistant steel sheet.

Description

내마모성 강판의 제조방법Manufacturing method of wear resistant steel sheet

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

제1도는 마무리 압연온도 및 압하율에 따른 경도값 변화를 나타내는 그래프이다.1 is a graph showing the change in hardness value according to the finish rolling temperature and the reduction ratio.

Claims (1)

중량%도, C : 0.18-0.4%, Si : 0.3% 이하, Mn : 0.4-1.6%, P :0.02% 이하, Cr : 0.4-0.8%, Mo : 0.1-0.3%, Ti : 0.01-0.03%, B : 0.0005-0.002%, Al : 0.02-0.05%, N : 0.01% 이하, 전부 Fe 및 기타 불가피한 불순물로 조성되는 강 슬라브를 1150-1300℃의 온도범위로 가열한 후, 마무리 압연온도를 900℃ 이하로 하고 900℃ 이하인 온도에서의 전체 압하율을 30% 이상으로 하여 열간압연을 실시한 다음, 120초 이내에서 상온까지 7℃/sec 이상의 평균냉각속도로 담금질한 후 200-350℃의 온도범위에서 뜨임처리하는 것을 특징으로 하는 내마모용 강판의 제조방법.% By weight, C: 0.18-0.4%, Si: 0.3% or less, Mn: 0.4-1.6%, P: 0.02% or less, Cr: 0.4-0.8%, Mo: 0.1-0.3%, Ti: 0.01-0.03% , B: 0.0005-0.002%, Al: 0.02-0.05%, N: 0.01% or less, all of the steel slab composed of Fe and other unavoidable impurities is heated to a temperature range of 1150-1300 ° C, and then the finish rolling temperature is 900 Hot rolling is carried out with the total reduction ratio of 30% or higher at a temperature of 900 ° C or lower, and then quenched at an average cooling rate of 7 ° C / sec or higher to a room temperature within 120 seconds, and then a temperature range of 200-350 ° C. Method for producing a wear-resistant steel sheet, characterized in that tempering treatment in. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930005319A 1993-03-31 1993-03-31 Making method of wear resistant steel plate KR950008691B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930005319A KR950008691B1 (en) 1993-03-31 1993-03-31 Making method of wear resistant steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930005319A KR950008691B1 (en) 1993-03-31 1993-03-31 Making method of wear resistant steel plate

Publications (2)

Publication Number Publication Date
KR940021745A true KR940021745A (en) 1994-10-19
KR950008691B1 KR950008691B1 (en) 1995-08-04

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ID=19353232

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930005319A KR950008691B1 (en) 1993-03-31 1993-03-31 Making method of wear resistant steel plate

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KR (1) KR950008691B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100406396B1 (en) * 1998-12-22 2004-02-14 주식회사 포스코 Ultra Hard Steel Manufacturing Method
CN113755752A (en) * 2021-08-24 2021-12-07 江苏利淮钢铁有限公司 30Mn2CrTiB steel for high-strength and high-toughness engineering machinery wheel body and production method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103205627B (en) 2013-03-28 2015-08-26 宝山钢铁股份有限公司 A kind of Low-alloy high-performance wear-resistant steel plate and manufacture method thereof
CN110564923A (en) * 2019-09-23 2019-12-13 舞阳钢铁有限责任公司 production method of quenched and tempered 27SiMn wear-resistant steel plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100406396B1 (en) * 1998-12-22 2004-02-14 주식회사 포스코 Ultra Hard Steel Manufacturing Method
CN113755752A (en) * 2021-08-24 2021-12-07 江苏利淮钢铁有限公司 30Mn2CrTiB steel for high-strength and high-toughness engineering machinery wheel body and production method thereof

Also Published As

Publication number Publication date
KR950008691B1 (en) 1995-08-04

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