CN115094312A - 一种矿山机械用高强度耐磨钢板 - Google Patents
一种矿山机械用高强度耐磨钢板 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 238000005065 mining Methods 0.000 title claims abstract description 18
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 7
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 33
- 238000010791 quenching Methods 0.000 claims description 15
- 230000000171 quenching effect Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229910001566 austenite Inorganic materials 0.000 claims description 10
- 238000009749 continuous casting Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000005496 tempering Methods 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 5
- 230000008025 crystallization Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000001953 recrystallisation Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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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
- 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
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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
- 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
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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
- 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
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- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- 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
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- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- 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
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- 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
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- 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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Abstract
本发明公开了一种矿山机械用高强度耐磨钢板,所述耐磨钢板具体包括下列重量百分比的组分:C:0.12‑0.16%,Si:0.22‑0.5%,Mn:0.75‑1.3%,P≤0.012%,S≤0.012%,Mo:0.12‑0.15%,Cr:0.1‑0.5%,Ti:0.05‑0.1%,Ni:0.1‑0.18%,N:0.02‑0.04%,Al:0.02‑0.06%,B:0.006‑0.01%,H≤0.0001%,其余为铁Fe和不可避免的杂质。本发明涉及矿山机械设备材料技术领域,具体提供了一种硬度优良,且具有良好韧性的矿山机械用高强度耐磨钢板。
Description
技术领域
本发明涉及矿山机械设备材料技术领域,具体为一种矿山机械用高强度耐磨钢板。
背景技术
挖掘机斗齿、球磨机衬板、破碎机颚板、拖拉机履带板、风扇磨冲击板和铁路道岔等矿山机械上通常会用到耐磨钢。耐磨钢是适用于各种磨损工况的一类耐磨材料,现有的耐磨钢由于原料组成以及加工方式的限制,导致耐磨钢的钢板硬度、抗磨损性能和韧性达不到要求。
发明内容
针对上述情况,为弥补上述现有缺陷,本发明提供了一种硬度优良,且具有良好韧性的矿山机械用高强度耐磨钢板。
本发明提供如下的技术方案:本发明提出的一种矿山机械用高强度耐磨钢板,所述耐磨钢板具体包括下列重量百分比的组分:C:0.12-0.16%,Si:0.22-0.5%,Mn:0.75-1.3%,P≤0.012%,S≤0.012%,Mo:0.12-0.15%,Cr:0.1-0.5%,Ti:0.05-0.1%,Ni:0.1-0.18%,N:0.02-0.04%,Al:0.02-0.06%,B:0.006-0.01%,H≤0.0001%,其余为铁Fe和不可避免的杂质。
作为优选地,所述耐磨钢板的厚度为9~18mm。
进一步地,所述耐磨钢板的制作工艺具体包括下列步骤:
(1)轧制:称取对应重量百分比的上述组分制得连铸坯,将连铸坯加热至1050~1250℃,保温2~3h,采用奥氏体在结晶区和奥氏体未再结晶区两阶段轧制;
(2)在线淬火:采用先层流冷却后水冷冷却的方式对钢板进行在线淬火,水冷开始温度不高于650℃,终冷温度为150~200℃;
(3)离线回火:在线淬火后,钢板加热至200-250℃回火处理,回火保温3~4min/mm。
进一步地,所述层流冷却的冷却速率为15~20℃/S。
采用上述结构本发明取得的有益效果如下:本发明提出的一种矿山机械用高强度耐磨钢板,通过控制C和Si的含量,在保证耐磨钢板硬度和强度避免钢板的韧性降低,并通过采用P和S的添加保证了钢板的塑形和韧性,同时通过先层流冷却后水冷冷却的方式是的冷却过程更加均匀可控,从而保证获得的耐磨钢板的性能更加稳定。
具体实施方式
下面将结合本发明的实施例,对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例;基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1
一种矿山机械用高强度耐磨钢板,所述耐磨钢板具体包括下列重量百分比的组分:C:0.14%,Si:0.36%,Mn:1.025%,P:0.006%,S:0.006%,Mo:0.135%,Cr:0.3%,Ti:0.075%,Ni:0.14%,N:0.03%,Al:0.04%,B:0.008%,H:0.00005%,其余为铁Fe和不可避免的杂质。其中所述耐磨钢板的厚度为9~18mm。
所述耐磨钢板的制作工艺具体包括下列步骤:
(1)轧制:称取对应重量百分比的上述组分制得连铸坯,将连铸坯加热至1050~1250℃,保温2~3h,采用奥氏体在结晶区和奥氏体未再结晶区两阶段轧制;
(2)在线淬火:采用先层流冷却后水冷冷却的方式对钢板进行在线淬火,水冷开始温度不高于650℃,终冷温度为150~200℃,所述层流冷却的冷却速率为15~20℃/S;
(3)离线回火:在线淬火后,钢板加热至200-250℃回火处理,回火保温3~4min/mm。
实施例2
一种矿山机械用高强度耐磨钢板,所述耐磨钢板具体包括下列重量百分比的组分:C:0.12%,Si:0.22%,Mn:0.75%,P:0.001%,S:0.001%,Mo:0.12%,Cr:0.1%,Ti:0.05%,Ni:0.1%,N:0.02%,Al:0.02%,B:0.006%,其余为铁Fe和不可避免的杂质。其中所述耐磨钢板的厚度为9~18mm。
所述耐磨钢板的制作工艺具体包括下列步骤:
(1)轧制:称取对应重量百分比的上述组分制得连铸坯,将连铸坯加热至1050~1250℃,保温2~3h,采用奥氏体在结晶区和奥氏体未再结晶区两阶段轧制;
(2)在线淬火:采用先层流冷却后水冷冷却的方式对钢板进行在线淬火,水冷开始温度不高于650℃,终冷温度为150~200℃,所述层流冷却的冷却速率为15~20℃/S;
(3)离线回火:在线淬火后,钢板加热至200-250℃回火处理,回火保温3~4min/mm。
实施例3
一种矿山机械用高强度耐磨钢板,所述耐磨钢板具体包括下列重量百分比的组分:C:0.16%,Si:0.5%,Mn:1.3%,P:0.012%,S:0.012%,Mo:0.15%,Cr:0.5%,Ti:0.05-0.1%,Ni:0.18%,N:0.04%,Al:0.06%,B:0.01%,H:0.0001%,其余为铁Fe和不可避免的杂质。其中所述耐磨钢板的厚度为9~18mm。
所述耐磨钢板的制作工艺具体包括下列步骤:
(1)轧制:称取对应重量百分比的上述组分制得连铸坯,将连铸坯加热至1050~1250℃,保温2~3h,采用奥氏体在结晶区和奥氏体未再结晶区两阶段轧制;
(2)在线淬火:采用先层流冷却后水冷冷却的方式对钢板进行在线淬火,水冷开始温度不高于650℃,终冷温度为150~200℃,所述层流冷却的冷却速率为15~20℃/S;
(3)离线回火:在线淬火后,钢板加热至200-250℃回火处理,回火保温3~4min/mm。
要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物料或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物料或者设备所固有的要素。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (4)
1.一种矿山机械用高强度耐磨钢板,其特征在于,所述耐磨钢板具体包括下列重量百分比的组分:C:0.12-0.16%,Si:0.22-0.5%,Mn:0.75-1.3%,P≤0.012%,S≤0.012%,Mo:0.12-0.15%,Cr:0.1-0.5%,Ti:0.05-0.1%,Ni:0.1-0.18%,N:0.02-0.04%,Al:0.02-0.06%,B:0.006-0.01%,H≤0.0001%,其余为铁Fe和不可避免的杂质。
2.根据权利要求1所述的一种矿山机械用高强度耐磨钢板,其特征在于,所述耐磨钢板的厚度为9~18mm。
3.根据权利要求2所述的一种矿山机械用高强度耐磨钢板,其特征在于,所述耐磨钢板的制作工艺具体包括下列步骤:
(1)轧制:称取对应重量百分比的上述组分制得连铸坯,将连铸坯加热至1050~1250℃,保温2~3h,采用奥氏体在结晶区和奥氏体未再结晶区两阶段轧制;
(2)在线淬火:采用先层流冷却后水冷冷却的方式对钢板进行在线淬火,水冷开始温度不高于650℃,终冷温度为150~200℃;
(3)离线回火:在线淬火后,钢板加热至200-250℃回火处理,回火保温3~4min/mm。
4.根据权利要求3所述的一种矿山机械用高强度耐磨钢板,其特征在于,所述层流冷却的冷却速率为15~20℃/S。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101748346A (zh) * | 2009-12-25 | 2010-06-23 | 舞阳钢铁有限责任公司 | 一种高等级别耐磨钢板及其生产方法 |
CN102002645A (zh) * | 2010-12-01 | 2011-04-06 | 莱芜钢铁股份有限公司 | 一种高强度耐磨钢板及其制备方法 |
CN104789881A (zh) * | 2015-05-07 | 2015-07-22 | 湖南华菱湘潭钢铁有限公司 | 一种高强度高韧性耐磨钢板的生产方法 |
CN110079745A (zh) * | 2019-06-03 | 2019-08-02 | 贝斯山钢(山东)钢板有限公司 | 一种在线淬火的hb400级耐磨钢板及制备方法 |
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CN101748346A (zh) * | 2009-12-25 | 2010-06-23 | 舞阳钢铁有限责任公司 | 一种高等级别耐磨钢板及其生产方法 |
CN102002645A (zh) * | 2010-12-01 | 2011-04-06 | 莱芜钢铁股份有限公司 | 一种高强度耐磨钢板及其制备方法 |
CN104789881A (zh) * | 2015-05-07 | 2015-07-22 | 湖南华菱湘潭钢铁有限公司 | 一种高强度高韧性耐磨钢板的生产方法 |
CN110079745A (zh) * | 2019-06-03 | 2019-08-02 | 贝斯山钢(山东)钢板有限公司 | 一种在线淬火的hb400级耐磨钢板及制备方法 |
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