CN112095053A - High-wear-resistance cold roll and preparation method thereof - Google Patents

High-wear-resistance cold roll and preparation method thereof Download PDF

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Publication number
CN112095053A
CN112095053A CN202010947927.1A CN202010947927A CN112095053A CN 112095053 A CN112095053 A CN 112095053A CN 202010947927 A CN202010947927 A CN 202010947927A CN 112095053 A CN112095053 A CN 112095053A
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CN
China
Prior art keywords
wear
cold roll
resistance
preparation
heat treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010947927.1A
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Chinese (zh)
Inventor
陈彬
陈刚
石跃军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yixing Yongchang Roll Co ltd
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Yixing Yongchang Roll Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN202010947927.1A priority Critical patent/CN112095053A/en
Publication of CN112095053A publication Critical patent/CN112095053A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • 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
    • C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon

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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)
  • Geometry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a high-wear-resistance cold roll which is characterized by comprising the following components in percentage by mass: 1.00-2.00% of C, 0.01-0.20% of N, 3.00-6.00% of Cr, 2.00-4.00% of Mo, 1.00-3.00% of V, 0.10-1.00% of Ti, 0.50-2.00% of Si and 0.50-1.50% of Mn, and the balance of Fe and inevitable impurities. Meanwhile, the invention also discloses a preparation method of the high-wear-resistance cold roll. Compared with the traditional technology, the invention has more scientific and rigorous formula and less impurity content; the preparation method is scientific and simple, low in energy consumption and less in pollution; the high-wear-resistance cold roll prepared by the invention forms a large amount of uniformly distributed nitrides and carbides of Ti, V and Mo, and is used as wear-resistant particles to increase the wear resistance of the material.

Description

High-wear-resistance cold roll and preparation method thereof
Technical Field
The invention belongs to the field of roller cold treatment, and particularly relates to a high-wear-resistance cold roller and a preparation method thereof.
Background
As an important part in metal rolling, how to improve the service life of a roll and the surface quality of a rolled product is an important issue in the field of metal rolling. In the rolling process of metal, the surface temperature of the roller is increased due to rolling deformation heat, friction heat, the heat of a rolled piece and the like, and the roller has the phenomena of surface heat cracking, oxidation, roller fracture and the like. Therefore, one of the important measures in the field of metal rolling is to improve the service life of the roll and to properly cool the roll.
The cooling technology of the surface of the roller can be generally divided into an internal cooling technology and an external cooling technology, and the two cooling modes can achieve the effect of taking away the heat on the surface of the roller in the rolling process to cool the roller. With the upgrading and development of the automobile industry and the building industry, in recent years, the development of household appliances, particularly the rapid development of cold-rolled high-strength steel plates, and a plurality of large tandem cold continuous rolling mill units are put into production successively. The high-strength steel has large rolling deformation resistance, correspondingly has serious abrasion to the roller, and inevitably greatly reduces the production efficiency of a unit and influences the yield if the roller is frequently replaced.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a high-wear-resistance cold roll aiming at the defects of the prior art.
The invention also aims to provide a preparation method of the high-wear-resistance cold roll.
The technical scheme is as follows: in order to achieve the above object, the present invention is specifically realized as follows: a high-wear-resistance cold roll comprises the following components in percentage by mass: 1.00-2.00% of C, 0.01-0.20% of N, 3.00-6.00% of Cr, 2.00-4.00% of Mo, 1.00-3.00% of V, 0.10-1.00% of Ti, 0.50-2.00% of Si and 0.50-1.50% of Mn, and the balance of Fe and inevitable impurities.
The method for preparing the high-wear-resistance cold roll is a traditional method and mainly comprises (1) smelting in an electric furnace; (2) casting an electrode bar; (3) electroslag remelting; (4) forging; (5) performing preliminary heat treatment; (6) final heat treatment; (7) and (5) machining to obtain a finished product.
The surface hardness of the roll neck of the high-wear-resistance cold roll is 35-45 HSD; the tensile strength is more than or equal to 900 Mpa; the surface hardness of the roller body is 63-66 HRC.
Has the advantages that: compared with the prior art, the invention has the following advantages:
(1) compared with the traditional technology, the invention has more scientific and rigorous formula and less impurity content; the preparation method is scientific and simple, low in energy consumption and less in pollution;
(2) the high-wear-resistance cold roll prepared by the invention forms a large amount of uniformly distributed nitrides and carbides of Ti, V and Mo, and is used as wear-resistant particles to increase the wear resistance of the material.
(3) The cold roll of the invention combines with C while refining crystal grains by increasing the content of Mo, V, Ti and N elements to form a large amount of MC and M2C-type carbide with high hardness enables the cold roll to have high roughness retention capacity and excellent wear resistance, thereby obviously prolonging the online service time of the roll and improving the efficiency of the rolling mill;
(4) after the alloy elements are added, the novel material has a good secondary hardening effect, and the roller has low residual stress on the premise of high hardness through high-temperature tempering, so that the cold roller has good rolling accident resistance, and the accident cost of the roller can be reduced.
Detailed Description
Example 1:
taking 1.00 percent of C, 0.01 percent of N, 3.00 percent of Cr, 2.00 percent of Mo, 1.00 percent of V, 0.10 percent of Ti, 0.50 percent of Si, 0.50 percent of Mn and the balance of Fe by mass percent. Sequentially (1) smelting in an electric furnace by a traditional method; (2) casting an electrode bar; (3) electroslag remelting; (4) forging; (5) performing preliminary heat treatment; (6) final heat treatment; (7) and (5) machining to obtain a finished product.
Example 2:
taking 2.00 percent of C, 0.20 percent of N, 6.00 percent of Cr, 4.00 percent of Mo, 3.00 percent of V, 1.00 percent of Ti, 2.00 percent of Si and 1.50 percent of Mn in percentage by mass, and the balance being Fe. Sequentially (1) smelting in an electric furnace by a traditional method; (2) casting an electrode bar; (3) electroslag remelting; (4) forging; (5) performing preliminary heat treatment; (6) final heat treatment; (7) and (5) machining to obtain a finished product.
Example 3:
taking 1.20% of C, 0.01% of N, 3.50% of Cr, 3.00% of Mo, 2.00% of V, 0.20% of Ti, 1.00% of Si and 1.00% of Mn in percentage by mass, and the balance of Fe. Sequentially (1) smelting in an electric furnace by a traditional method; (2) casting an electrode bar; (3) electroslag remelting; (4) forging; (5) performing preliminary heat treatment; (6) final heat treatment; (7) and (5) machining to obtain a finished product.
Example 4:
taking 1.40% of C, 0.20% of N, 5.50% of Cr, 2.50% of Mo, 2.50% of V, 0.40% of Ti, 1.20% of Si, 0.80% of Mn and the balance of Fe by mass percent. Sequentially (1) smelting in an electric furnace by a traditional method; (2) casting an electrode bar; (3) electroslag remelting; (4) forging; (5) performing preliminary heat treatment; (6) final heat treatment; (7) and (5) machining to obtain a finished product.
Example 5:
taking 1.50% of C, 0.01% of N, 4.50% of Cr, 3.50% of Mo, 2.30% of V, 0.60% of Ti, 1.50% of Si, 1.20% of Mn and the balance of Fe by mass percent. Sequentially (1) smelting in an electric furnace by a traditional method; (2) casting an electrode bar; (3) electroslag remelting; (4) forging; (5) performing preliminary heat treatment; (6) final heat treatment; (7) and (5) machining to obtain a finished product.
Example 6:
taking 1.60% of C, 0.20% of N, 5.00% of Cr, 2.80% of Mo, 2.40% of V, 0.80% of Ti, 1.60% of Si and 0.60% of Mn in percentage by mass, and the balance of Fe. Sequentially (1) smelting in an electric furnace by a traditional method; (2) casting an electrode bar; (3) electroslag remelting; (4) forging; (5) performing preliminary heat treatment; (6) final heat treatment; (7) and (5) machining to obtain a finished product.
Example 7:
taking 1.80% of C, 0.01% of N, 4.00% of Cr, 3.60% of Mo, 1.80% of V, 0.90% of Ti, 1.80% of Si and 1.30% of Mn in percentage by mass, and the balance of Fe. Sequentially (1) smelting in an electric furnace by a traditional method; (2) casting an electrode bar; (3) electroslag remelting; (4) forging; (5) performing preliminary heat treatment; (6) final heat treatment; (7) and (5) machining to obtain a finished product.

Claims (2)

1. The high-wear-resistance cold roll is characterized by comprising the following components in percentage by mass: 1.00-2.00% of C, 0.01-0.20% of N, 3.00-6.00% of Cr, 2.00-4.00% of Mo, 1.00-3.00% of V, 0.10-1.00% of Ti, 0.50-2.00% of Si and 0.50-1.50% of Mn, and the balance of Fe and inevitable impurities.
2. The preparation method of the high-wear-resistance cold roll is characterized by comprising the following steps:
(1) smelting in an electric furnace;
(2) casting an electrode bar;
(3) electroslag remelting;
(4) forging;
(5) performing preliminary heat treatment;
(6) final heat treatment;
(7) and (5) machining to obtain a finished product.
CN202010947927.1A 2020-09-10 2020-09-10 High-wear-resistance cold roll and preparation method thereof Pending CN112095053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010947927.1A CN112095053A (en) 2020-09-10 2020-09-10 High-wear-resistance cold roll and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010947927.1A CN112095053A (en) 2020-09-10 2020-09-10 High-wear-resistance cold roll and preparation method thereof

Publications (1)

Publication Number Publication Date
CN112095053A true CN112095053A (en) 2020-12-18

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CN202010947927.1A Pending CN112095053A (en) 2020-09-10 2020-09-10 High-wear-resistance cold roll and preparation method thereof

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995024513A1 (en) * 1994-03-11 1995-09-14 The Davy Roll Company Limited Steel alloys and rolling mill rolls produced therefrom
AU672550B1 (en) * 1995-05-08 1996-10-03 Mitsubishi Steel Mfg. Co. Ltd. Roll with roughened surface for cold rolling
CN103320710A (en) * 2013-06-17 2013-09-25 唐山亿联盛轧辊有限公司 High-toughness high-speed steel composite roll
CN107686942A (en) * 2017-08-21 2018-02-13 宜兴市永昌轧辊有限公司 A kind of cold roll for possessing high roughness retention property

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995024513A1 (en) * 1994-03-11 1995-09-14 The Davy Roll Company Limited Steel alloys and rolling mill rolls produced therefrom
AU672550B1 (en) * 1995-05-08 1996-10-03 Mitsubishi Steel Mfg. Co. Ltd. Roll with roughened surface for cold rolling
CN103320710A (en) * 2013-06-17 2013-09-25 唐山亿联盛轧辊有限公司 High-toughness high-speed steel composite roll
CN107686942A (en) * 2017-08-21 2018-02-13 宜兴市永昌轧辊有限公司 A kind of cold roll for possessing high roughness retention property

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Application publication date: 20201218