WO2023087882A1 - Plaque d'acier résistant à l'usure nm600 contenant des terres rares et son procédé de préparation - Google Patents

Plaque d'acier résistant à l'usure nm600 contenant des terres rares et son procédé de préparation Download PDF

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Publication number
WO2023087882A1
WO2023087882A1 PCT/CN2022/119350 CN2022119350W WO2023087882A1 WO 2023087882 A1 WO2023087882 A1 WO 2023087882A1 CN 2022119350 W CN2022119350 W CN 2022119350W WO 2023087882 A1 WO2023087882 A1 WO 2023087882A1
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Prior art keywords
steel plate
wear
rare earth
resistant steel
slag
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PCT/CN2022/119350
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English (en)
Chinese (zh)
Inventor
靳建锋
刘承军
张波
闫强军
葛昕
黄彪凯
李庆春
雷晓荣
姜在伟
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南京钢铁股份有限公司
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Publication of WO2023087882A1 publication Critical patent/WO2023087882A1/fr

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0006—Adding metallic additives
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • 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
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • 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
    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • 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
    • 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
    • C21D2211/008—Martensite

Definitions

  • the invention relates to the technical field of iron and steel production, in particular to a rare earth-containing NM600 wear-resistant steel plate and a preparation method thereof.
  • Wear is one of the main forms of failure of mechanical parts.
  • the use failure caused by wear increases the frequency of maintenance and replacement of workpieces, greatly reduces production efficiency, produces quite astonishing economic losses, and even causes equipment and personal accidents.
  • the operating speed of mechanical equipment is getting higher and higher, the speed of friction workpieces is getting faster and faster, and the failure of mechanical parts caused by wear is becoming more and more prominent.
  • the research and development of low-alloy high-strength wear-resistant steel in my country has made great progress, and the grades and grades of low-alloy wear-resistant steel developed have been continuously improved.
  • Hardness is an important index to measure the wear resistance of metal materials, and the increase of hardness usually leads to the decrease of toughness and plasticity. How to prepare wear-resistant materials with higher hardness and strength while ensuring excellent plasticity and toughness has become a difficult point in the development of higher-level low-alloy wear-resistant steels.
  • the present invention aims at the above technical problems, overcomes the shortcomings of the prior art, and provides a rare earth-containing NM600 wear-resistant steel plate, whose chemical composition and mass percentage are as follows: C: 0.21%-0.63%, Mn: 0.20%-1.00%, Si : 0.10%-0.30%, Cr: 0.15%-0.85%, Mo: 0.08%-0.75%, Ni: 0.70%-2.00%, Nb: 0.010%-0.060%, V: 0.010%-0.060%, Ti: 0.010 %-0.040%, Alt: 0.020%-0.080%, B: 0.0008%-0.0030%, Ce: 0.0005%-0.0080%, P ⁇ 0.010%, S ⁇ 0.0020%, O ⁇ 0.0020%, N ⁇ 0.0040%, I The amount is iron and unavoidable impurities.
  • the aforementioned rare earth-containing NM600 wear-resistant steel plate has the following chemical composition and mass percentage: C: 0.38%-0.40%, Mn: 0.40%-0.50%, Si: 0.20%-0.30%, Cr: 0.20% -0.30%, Mo: 0.10%-0.20%, Ni: 1.00%-1.20%, Nb: 0.010%-0.040%, V: 0.010%-0.040%, Ti: 0.010%-0.040%, Alt: 0.020%-0.050 %, B: 0.0008%-0.0030%, Ce: 0.0010%-0.0030%, P ⁇ 0.010%, S ⁇ 0.0020%, O ⁇ 0.0020%, N ⁇ 0.0040%, the balance is iron and unavoidable impurities.
  • the aforementioned rare earth-containing NM600 wear-resistant steel plate has the following chemical composition and mass percentage: C: 0.41%-0.43%, Mn: 0.50%-0.60%, Si: 0.30%-0.40%, Cr: 0.35% -0.45%, Mo: 0.20%-0.30%, Ni: 1.2%-1.4%, Nb: 0.010%-0.040%, V: 0.010%-0.040%, Ti: 0.010%-0.040%, Alt: 0.020%-0.080 %, B: 0.0008%-0.0030%, Ce: 0.0030%-0.0050%, P ⁇ 0.008%, S ⁇ 0.0015%, O ⁇ 0.0018%, N ⁇ 0.0035%, the balance is iron and unavoidable impurities.
  • Another object of the present invention is to provide a method for preparing a rare earth-containing NM600 wear-resistant steel plate, comprising the following steps:
  • Desulfurization of molten iron is pretreated by KR method or injection method, and slag is removed after pretreatment of molten iron to ensure that S in molten iron is ⁇ 0.0020%;
  • Decarburization, desiliconization, and desulfurization of hot metal are carried out in the top-bottom combined blowing converter, and the tapping temperature is controlled at 1620-1660 °C; after tapping the converter, aluminum is added for deoxidation, and the total oxygen in the molten steel is ⁇ 0.0500%; lime is added in the tapping process of 6.4 ⁇ 0.3kg/t steel and pre-melted refining slag 2.3 ⁇ 0.3kg/t steel;
  • Lime and quartz sand should be properly supplemented according to the slag condition, and the alkalinity should be controlled at 4.5-6.5; aluminum particles, aluminum powder or aluminum wire should be used for deoxidation, the total oxygen in molten steel should be ⁇ 0.0020%, and the dissolved oxygen should be ⁇ 0.0005%;
  • the holding time of high vacuum degree is ⁇ 25min; after the end of RH, after adding ferroboron or feeding boron wire, the static stirring time is ⁇ 15min;
  • Strict argon sealing is implemented for continuous casting long nozzles and submerged nozzles, the casting speed is controlled at 0.70-0.80m/min, carbon-free covering agent is used for the tundish, and high-carbon steel mold slag is used for casting;
  • the continuous casting billet is put into the furnace with a temperature above 150°C, and the cold billet is heated by laying on the bottom and covered by the upper cover or preheated in the table furnace; the heating temperature is 1220 ⁇ 20°C, and the rolling is controlled by two stages. ⁇ 920°C, target final rolling temperature ⁇ 800°C, air cooling after rolling; two-stage cumulative reduction rate ⁇ 40% and ⁇ 50% respectively;
  • the heating temperature for quenching is 840-950°C, and the time in the furnace is 23-55 minutes; the heating temperature for tempering is 210-280°C, and the time in the furnace is 65-155 minutes.
  • step (4) The above-mentioned preparation method of NM600 wear-resistant steel plate containing rare earth, step (4), vacuum degree ⁇ 3.0mbar, use bottom blowing argon to blow off the slag layer before vacuum treatment, then add ferrocerium alloy, or vacuum treatment for 10-20min Add ferro-cerium alloy through the silo, or use bottom-blown argon to blow off the slag layer after vacuum treatment, and then add ferro-cerium alloy.
  • the thickness of the steel plate is 12-30mm.
  • the metallographic structure of the steel plate is acicular martensite.
  • rare earth alloys are added in the molten steel refining process, and rare earths are used to modify the quality of inclusions in the molten steel, and at the same time cooperate with scientific and reasonable rolling and heat treatment systems to realize the refinement of steel plate grains, so as to improve plasticity and impact toughness purposes;
  • the basicity of LF refining slag is controlled at 4.5-6.5, so that the refining slag maintains good fluidity and adsorption capacity to inclusions, and minimizes the amount of inclusions in the steel;
  • the RH high vacuum degree keeping time is more than or equal to 25min, so as to reduce the H content in molten steel, make the inclusions collide and grow up to float, reduce the quantity of inclusions, and improve the purity of molten steel;
  • the continuous casting long nozzle and the submerged nozzle are strictly argon-sealed, so as to avoid secondary pollution of molten steel and reduce the generation of foreign inclusions;
  • the rolling in the present invention adopts two-stage controlled rolling. After the first stage of rolling, the temperature is ⁇ 920°C, and the target final rolling temperature is ⁇ 800°C, so as to refine the original grain size of the steel plate and improve the impact toughness of the steel plate.
  • a method for preparing a rare earth-containing NM600 wear-resistant steel plate provided in this embodiment, the specific steps are as follows:
  • the KR method is used to pretreat the molten iron for desulfurization and slag removal.
  • the mass fraction of S in the molten iron after pretreatment is 0.0016%.
  • Decarburization, desiliconization, and desulfurization of molten iron are carried out in a top-bottom combined blowing converter, and the tapping temperature is 1646°C.
  • Aluminum is added for deoxidation after the converter is tapped, and the mass fraction of total oxygen in the molten steel is 0.0470%.
  • Lime 6.4 ⁇ 0.3kg/t steel and pre-melted refining slag 2.3 ⁇ 0.3kg/t steel are added in the tapping process.
  • the alkalinity of the LF refining process is controlled at 5.4, and aluminum grain deoxidation is used.
  • the mass fraction of total oxygen in the LF outbound molten steel is 0.0020%, and the mass fraction of dissolved oxygen is 0.0005%.
  • the high vacuum degree ( ⁇ 3.0mbar) is kept for 26 minutes.
  • ferroboron is added, and the static stirring time is 18 minutes.
  • the continuous casting long nozzle and submerged nozzle are strictly argon-sealed, the casting speed is controlled at 0.70-0.80m/min, the tundish adopts carbon-free covering agent, and the casting adopts high-carbon steel mold slag.
  • the continuous casting billet is put into the furnace with temperature at 150°C, and the cold billet is heated with a lower bed and a upper cover or preheated in a desktop furnace.
  • the heating temperature is 1220 ⁇ 20°C, and the rolling adopts two-stage controlled rolling. After the first stage of rolling, the temperature is raised to 860°C, and the target final rolling temperature is 800°C. After rolling, it is air-cooled. The cumulative reduction rates of the two stages are 60% and 70% respectively.
  • Heat treatment The quenching heating temperature is 840°C, and the furnace time is 23 minutes; the tempering heating temperature is 210°C, and the furnace time is 65 minutes.
  • the chemical composition of the steel plate is shown in Table 1, and the mechanical properties of the steel plate measured by the national standard test method are shown in Table 2.
  • a method for preparing a rare earth-containing NM600 wear-resistant steel plate provided in this embodiment, the specific steps are as follows:
  • the injection method is used to pretreat the molten iron for desulfurization and slag removal, and the mass fraction of S in the molten iron after pretreatment is 0.0019%.
  • Decarburization, desiliconization, and desulfurization of molten iron are carried out in a top-bottom combined blowing converter, and the tapping temperature is 1628°C. After the converter is tapped, aluminum is added for deoxidation, and the mass fraction of total oxygen in the molten steel is 0.0420%. Lime 6.4 ⁇ 0.3kg/t steel and pre-melted refining slag 2.3 ⁇ 0.3kg/t steel are added in the tapping process. The alkalinity of the LF refining process is controlled at 6.5, and aluminum powder is used for deoxidation.
  • the mass fraction of total oxygen in the LF outbound molten steel is 0.0018%, and the mass fraction of dissolved oxygen is 0.0003%.
  • the high vacuum degree ⁇ 3.0mbar
  • the vacuum treatment is 17 minutes to add ferrocerium alloy through the silo.
  • ferroboron is added, and the static stirring time is 17 minutes.
  • the continuous casting long nozzle and submerged nozzle are strictly argon-sealed, the casting speed is controlled at 0.70-0.80m/min, the tundish adopts carbon-free covering agent, and the casting adopts high-carbon steel mold slag.
  • the continuous casting billet is put into the furnace with temperature at 160°C, and the cold billet is heated by laying on the bottom and covering it or preheating in a desktop furnace.
  • the heating temperature is 1220 ⁇ 20°C, and the rolling adopts two-stage controlled rolling. After the first stage of rolling, the temperature is raised to 880°C, and the target final rolling temperature is 810°C. After rolling, it is air-cooled. The cumulative reduction rates of the two stages are 60% and 70% respectively.
  • Heat treatment The quenching heating temperature is 890°C, and the furnace time is 47min; the tempering heating temperature is 240°C, and the furnace time is 98min.
  • the chemical composition of the steel plate is shown in Table 1, and the mechanical properties of the steel plate measured by the national standard test method are shown in Table 2.
  • a method for preparing a rare earth-containing NM600 wear-resistant steel plate provided in this embodiment, the specific steps are as follows:
  • the KR method is used to pretreat the molten iron for desulfurization and slag removal.
  • the mass fraction of S in the molten iron after pretreatment is 0.0017%.
  • Decarburization, desiliconization, and desulfurization of molten iron are carried out in a top-bottom combined blowing converter, and the tapping temperature is 1660°C. After the converter is tapped, aluminum is added for deoxidation, and the mass fraction of total oxygen in the molten steel is 0.0480%. Lime 6.4 ⁇ 0.3kg/t steel and pre-melted refining slag 2.3 ⁇ 0.3kg/t steel are added in the tapping process.
  • the alkalinity of the LF refining process is controlled at 4.5, and aluminum wire is used for deoxidation.
  • the mass fraction of total oxygen in the LF outbound molten steel is 0.0017%, and the mass fraction of dissolved oxygen is 0.0003%.
  • the high vacuum degree ⁇ 3.0mbar
  • the slag layer is blown away by bottom blowing argon, and then the ferrocerium alloy is added.
  • ferroboron is added, and the static stirring time is 20 minutes.
  • the continuous casting long nozzle and submerged nozzle are strictly argon-sealed, the casting speed is controlled at 0.70-0.80m/min, the tundish adopts carbon-free covering agent, and the casting adopts high-carbon steel mold slag.
  • the continuous casting billet is put into the furnace with temperature at 150°C, and the cold billet is heated with a lower bed and a upper cover or preheated in a desktop furnace.
  • the heating temperature is 1220 ⁇ 20°C, and the rolling adopts two-stage controlled rolling. After the first stage of rolling, the temperature is 920°C, and the target final rolling temperature is 830°C. After rolling, it is air-cooled. The cumulative reduction rates of the two stages are 40% and 50% respectively.
  • Heat treatment The heating temperature for quenching is 950°C, and the time in the furnace is 55min; the heating temperature for tempering is 280°C, and the time in the furnace is 155min.
  • the composition of the prepared steel plate is shown in Table 1, and the mechanical properties of the steel plate measured by the national standard test method are shown in Table 2.
  • the chemical composition of the steel plate is shown in Table 1, and the mechanical properties of the steel plate measured by the national standard test method are shown in Table 2.
  • the tensile strength of the rare earth-containing NM600 wear-resistant steel plate with a thickness of 12-30mm prepared by the present invention is ⁇ 1800MPa
  • yield strength is ⁇ 1550MPa
  • elongation is ⁇ 13.0%
  • surface hardness is ⁇ 580HB, -20 °C impact ⁇ 21J.
  • the elongation after fracture and the impact energy at -20°C are significantly improved, and the toughness and plasticity are enhanced, while the strength and hardness indicators do not decrease.
  • the thickness of the steel plate increases, the strength, hardness and ductility and plasticity indicators can also be maintained at a considerable level.
  • the present invention can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

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

Abstract

La présente invention concerne le domaine technique de la production d'acier. L'invention divulgue une plaque d'acier résistant à l'usure NM600 contenant des terres rares et son procédé de préparation. La plaque d'acier résistant à l'usure comprend les composants chimiques et les pourcentages en masse suivants : C : 0,21 %-0,63 %, Mn : 0,20 %-1,00 %, Si : 0,10 %-0,30 %, Cr : 0,15 %-0,85 %, Mo : 0,08 %-0,75 %, Ni : 0,70 %-2,00 %, Nb : 0,010 %-0,060 %, V : 0,010%-0,060 %, Ti : 0,010 %-0,040 %, Alt : 0,020 %-0,080 %, B : 0,0008 %-0,0030 %, Ce : 0,0005 %-0,0080 %, P ≤ 0,010 %, S ≤ 0,0020 %, O ≤ 0,0020 %, N ≤ 0,0040 %, et le reste étant du fer et des impuretés inévitables. En ajoutant un alliage de terres rares dans de l'acier résistant à l'usure à haute résistance et à faible teneur en alliage, la plasticité et la ténacité à l'impact à basse température sont efficacement améliorées sans réduire la dureté et la résistance de la plaque d'acier.
PCT/CN2022/119350 2021-11-19 2022-09-16 Plaque d'acier résistant à l'usure nm600 contenant des terres rares et son procédé de préparation WO2023087882A1 (fr)

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CN202111381912.4A CN114480987A (zh) 2021-11-19 2021-11-19 一种含稀土的nm600耐磨钢板及其制备方法

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CN117305708A (zh) * 2023-09-28 2023-12-29 河北普阳新材料实业有限公司 一种薄规格耐磨钢板的制备方法

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CN114480987A (zh) * 2021-11-19 2022-05-13 南京钢铁股份有限公司 一种含稀土的nm600耐磨钢板及其制备方法

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JP2007092155A (ja) * 2005-09-30 2007-04-12 Jfe Steel Kk 低温靭性に優れた耐摩耗鋼板およびその製造方法
CN102337455A (zh) * 2011-09-05 2012-02-01 内蒙古包钢钢联股份有限公司 一种稀土处理的高韧性耐磨钢板
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CN110453151A (zh) * 2019-09-18 2019-11-15 南阳汉冶特钢有限公司 一种低成本高强度耐磨钢板nm600及其生产方法
CN114480987A (zh) * 2021-11-19 2022-05-13 南京钢铁股份有限公司 一种含稀土的nm600耐磨钢板及其制备方法

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CN117305708A (zh) * 2023-09-28 2023-12-29 河北普阳新材料实业有限公司 一种薄规格耐磨钢板的制备方法
CN117305708B (zh) * 2023-09-28 2024-06-07 河北普阳新材料实业有限公司 一种薄规格耐磨钢板的制备方法

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