CN110564923A - 调质型27SiMn耐磨钢板的生产方法 - Google Patents

调质型27SiMn耐磨钢板的生产方法 Download PDF

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CN110564923A
CN110564923A CN201910900513.0A CN201910900513A CN110564923A CN 110564923 A CN110564923 A CN 110564923A CN 201910900513 A CN201910900513 A CN 201910900513A CN 110564923 A CN110564923 A CN 110564923A
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steel plate
temperature
rolling
wear
heat preservation
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邓建军
李�杰
陈起
龙杰
吕建会
张亚丽
任鑫磊
刘彦强
陈振业
张启远
谢向东
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Wuyang Iron and Steel Co Ltd
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Wuyang Iron and Steel Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/005Heat treatment of ferrous alloys containing Mn
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/008Heat treatment of ferrous alloys containing Si
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium

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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

本发明公开了一种调质型27SiMn耐磨钢板的生产方法,其包括轧制、淬火和回火工序;所述轧制工序:第一阶段开轧温度为1050~1150℃,晾钢厚度为钢板厚度+50mm;第二阶段开轧温度为880~930℃;轧后水冷,返红温度为400℃~600℃;所述淬火工序:淬火温度为850℃~880℃,保温时间为2~2.50min/mm,保温后水冷;所述回火工序:回火温度为350~450℃,保温时间为2.5~3.0min/mm,保温后空冷,即可得到所述的耐磨钢板。本方法采用控轧+离线亚温淬火+离线回火的工艺,获取均匀细小的组织结构,从而确保所生产钢板具有优良的综合力学性能。本方法所得调质型27SiMn耐磨钢板厚度为8~110mm,具有强度适中、‑20℃低温冲击韧性优良、硬度均匀的特点。

Description

调质型27SiMn耐磨钢板的生产方法
技术领域
本发明属于冶金技术领域,尤其是一种调质型27SiMn耐磨钢板的生产方法。
背景技术
27SiMn钢板属于高碳高硅类钢种,广泛应用于矿山、煤矿、冶金等工程机械关键部位的制造中。国内通常以热轧状态订货,在设备制造时,需要对加工件进行油淬+回火处理,以获得较高的强度及硬度,满足设备制造的需要。这种热轧状态订货的方案,不仅延长了设备的制造周期,还导致了成本的显著增加。
发明内容
本发明要解决的技术问题是提供一种高性能的调质型27SiMn耐磨钢板的生产方法。
为解决上述技术问题,本发明所采取的技术方案是:其包括轧制、淬火和回火工序;所述轧制工序:第一阶段开轧温度为1050~1150℃,晾钢厚度为钢板厚度+50mm;第二阶段开轧温度为880~930℃;轧后水冷,返红温度为400℃~600℃;
所述淬火工序:淬火温度为850℃~880℃,保温时间为2~2.50min/mm,保温后水冷;
所述回火工序:回火温度为350~450℃,保温时间为2.5~3.0min/mm,保温后空冷,即可得到所述的耐磨钢板。
本发明所述轧制工序中,坯料与钢板的压缩比≥3。
采用上述技术方案所产生的有益效果在于:本发明采用控轧+离线亚温淬火+离线回火的工艺,获取均匀细小的组织结构,从而确保所生产钢板具有优良的综合力学性能。本发明所得调质型27SiMn耐磨钢板厚度为8~110mm,具有强度适中、-20℃低温冲击韧性优良、硬度均匀的特点;在后续的设备制造时,无需对加工件进行油淬+回火处理,能有效地减少设备的制造周期,降低生产成本。
本发明所得钢板具有均匀细小的组织结构,从而确保了钢板强度、硬度及低温冲击性能;所得钢板的屈服强度(Rp0.2) 900MPa~1150MPa,抗拉强度(Rm)≥1100MPa,延伸率A50%≥14%;所得钢板的-20℃横向冲击功≥20J;钢板表面布氏硬度为280~350HBWW。
具体实施方式
下面结合具体实施方式对本发明作进一步详细的说明。
实施例1-4:本调质型27SiMn耐磨钢板的生产方法采用下述工艺。
(1)生产工艺:包括轧制、淬火和回火工序;所述轧制工序:第一阶段开轧温度为1050~1150℃,晾钢厚度为钢板厚度+50mm;第二阶段开轧温度为880~930℃;轧后水冷,返红温度为400℃~600℃;坯料与钢板的压缩比≥3。所述淬火工序:淬火温度为850℃~880℃,保温时间为2~2.50min/mm,保温后水冷。所述回火工序:回火温度为350~450℃,保温时间为2.5~3.0min/mm,保温后空冷,即可得到所述的耐磨钢板。钢板的标准、各实施例的钢板对应的成分见表1。
表1 各实例钢板的成分
(2)力学性能:各实施例工艺参数见表2。
表2 各实施例的工艺参数
(2)力学性能:各实施例所得调质型27SiMn耐磨钢板的力学性能见表3:

Claims (2)

1.一种调质型27SiMn耐磨钢板的生产方法,其特征在于:其包括轧制、淬火和回火工序;所述轧制工序:第一阶段开轧温度为1050~1150℃,晾钢厚度为钢板厚度+50mm;第二阶段开轧温度为880~930℃;轧后水冷,返红温度为400℃~600℃;
所述淬火工序:淬火温度为850℃~880℃,保温时间为2~2.50min/mm,保温后水冷;
所述回火工序:回火温度为350~450℃,保温时间为2.5~3.0min/mm,保温后空冷,即可得到所述的耐磨钢板。
2.根据权利要求1所述的调质型27SiMn耐磨钢板的生产方法,其特征在于:所述轧制工序中,坯料与钢板的压缩比≥3。
CN201910900513.0A 2019-09-23 2019-09-23 调质型27SiMn耐磨钢板的生产方法 Pending CN110564923A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115537655A (zh) * 2022-09-16 2022-12-30 舞阳钢铁有限责任公司 一种高硅耐磨钢板及其生产方法

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KR950008691B1 (ko) * 1993-03-31 1995-08-04 포항종합제철주식회사 내마모용 강판의 제조방법
CN101358323A (zh) * 2008-08-26 2009-02-04 攀钢集团成都钢铁有限责任公司 27SiMnB钢、缸体用无缝钢管及其生产方法
CN106399839A (zh) * 2016-09-18 2017-02-15 舞阳钢铁有限责任公司 一种大厚度高强高韧性nm400钢板及生产方法
CN107881415A (zh) * 2017-11-15 2018-04-06 东北大学 一种耐高温磨损钢板及其制造方法
CN109609840A (zh) * 2018-12-03 2019-04-12 南阳汉冶特钢有限公司 一种180~200mm厚度合金结构钢27SiMn及其生产工艺

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950008691B1 (ko) * 1993-03-31 1995-08-04 포항종합제철주식회사 내마모용 강판의 제조방법
CN101358323A (zh) * 2008-08-26 2009-02-04 攀钢集团成都钢铁有限责任公司 27SiMnB钢、缸体用无缝钢管及其生产方法
CN106399839A (zh) * 2016-09-18 2017-02-15 舞阳钢铁有限责任公司 一种大厚度高强高韧性nm400钢板及生产方法
CN107881415A (zh) * 2017-11-15 2018-04-06 东北大学 一种耐高温磨损钢板及其制造方法
CN109609840A (zh) * 2018-12-03 2019-04-12 南阳汉冶特钢有限公司 一种180~200mm厚度合金结构钢27SiMn及其生产工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115537655A (zh) * 2022-09-16 2022-12-30 舞阳钢铁有限责任公司 一种高硅耐磨钢板及其生产方法
CN115537655B (zh) * 2022-09-16 2023-08-22 舞阳钢铁有限责任公司 一种高硅耐磨钢板及其生产方法

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