CN115058651B - Forged steel cold rolling working roll with roll mark resistance and manufacturing method thereof - Google Patents

Forged steel cold rolling working roll with roll mark resistance and manufacturing method thereof Download PDF

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Publication number
CN115058651B
CN115058651B CN202210717958.7A CN202210717958A CN115058651B CN 115058651 B CN115058651 B CN 115058651B CN 202210717958 A CN202210717958 A CN 202210717958A CN 115058651 B CN115058651 B CN 115058651B
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percent
roll
treatment
steel cold
heat treatment
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CN115058651A (en
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鞠贤琴
李北玉
陈伟
张青
崔海峰
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Baosteel Roll Science & Technology Co ltd
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Baosteel Roll Science & Technology Co ltd
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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
    • 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
    • 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
    • C21D1/06—Surface hardening
    • 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
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/04—Hardening by cooling below 0 degrees Celsius
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
    • 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
    • C22C38/40—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
    • 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

Abstract

The invention discloses a forged steel cold rolling working roll with roll mark resistance and a manufacturing method thereof, wherein the forged steel cold rolling working roll comprises the following steps of smelting and forging a roll blank, performing preliminary heat treatment and performing final heat treatment according to chemical components and weight percentages; the chemical components and weight percentages are as follows: 0.88 to 1.05 percent of carbon, 0.50 to 0.90 percent of silicon, 0.10 to 0.70 percent of manganese, less than or equal to 0.020 percent of phosphorus, less than or equal to 0.015 percent of sulfur, 2.60 to 3.20 percent of chromium, 0.60 to 0.90 percent of nickel, 0.10 to 0.60 percent of molybdenum, 0.05 to 0.40 percent of vanadium, and the balance of iron and unavoidable impurities; the final heat treatment comprises surface quenching treatment at 910-950 ℃, deep cooling treatment at minus 180-minus 160 ℃ for 4-6 h and low temperature tempering treatment at 80-150 ℃ for 60-150 h. According to the invention, on one hand, the alloy content is optimized (mainly in terms of increasing the Ni content of the conventional Cr3 material), and on the other hand, the heat treatment process is optimized (mainly in terms of selecting the cryogenic treatment temperature and prolonging the cryogenic treatment time), and finally, the forged steel cold-rolling working roll of the Cr3 material with the matrix hardness of more than 65HRC can be manufactured, so that the roll mark resistance requirement can be met.

Description

Forged steel cold rolling working roll with roll mark resistance and manufacturing method thereof
Technical Field
The invention belongs to the technical field of forged steel cold-rolling working rolls, and particularly relates to a forged steel cold-rolling working roll with roll mark resistance and a manufacturing method thereof.
Background
At present, a method for solving the problem that the plate is subjected to roll mark and scratch mainly aims at controlling related factors. For example, the method includes the steps of controlling the pressing of a roller system, controlling the tension deviation of each rack, adding a special baffle in a rolling mill, cleaning a nozzle and the like; in addition, there is also a method of controlling grinding of the roll and roughening to further reduce the occurrence probability of roll marks and scratches.
However, many of these approaches are not effective to implement, and some may work in one steelworks, but may not work in another steelworks, given the different actual usage conditions of each steelworks.
The forged steel cold-rolled working roll with the roll mark resistance is required to have the matrix hardness of more than 65HRC, and the matrix hardness of the conventional forged steel cold-rolled working roll made of Cr3 is difficult to reach the requirements. Therefore, conventional wrought steel cold-rolling work rolls having roll mark resistance are basically made of Cr5 (documents 1 to 2) or Cr6 (documents 3 to 5).
Therefore, the improvement of the matrix hardness of the forged steel cold-rolling working roll made of Cr3 material, so that the forged steel cold-rolling working roll has the roll mark resistance, and the technical problem to be solved in the field is solved.
Document 1: chinese patent document CN102644026a, published year 2012, month 8 and 22.
Document 2: chinese patent document CN104195450a, publication date 2014, 12, 10.
Document 3: chinese patent document CN101481776a, publication date 2009, 7 month 15.
Document 4: chinese patent document CN103614635a, publication date 2014, 3, 5.
Document 5: chinese patent document CN106734805a, publication date 2017, month 5 and 31.
Disclosure of Invention
The invention aims to solve the problems and provide a forged steel cold-rolling working roll with roll mark resistance and a manufacturing method thereof, wherein the forged steel cold-rolling working roll is made of Cr3 material with the matrix hardness of more than 65HRC, so as to fill the blank in the field.
The technical scheme for realizing the aim of the invention is as follows: a method for manufacturing a cold-rolled working roll of forged steel with roll mark resistance comprises smelting and forging a roll blank according to chemical components and weight percentages, performing preliminary heat treatment and performing final heat treatment.
The chemical components and weight percentages are as follows: 0.88 to 1.05 percent of carbon, 0.50 to 0.90 percent of silicon, 0.10 to 0.70 percent of manganese, less than or equal to 0.020 percent of phosphorus, less than or equal to 0.015 percent of sulfur, 2.60 to 3.20 percent of chromium, 0.60 to 0.90 percent of nickel, 0.10 to 0.60 percent of molybdenum, 0.05 to 0.40 percent of vanadium, and the balance of iron and unavoidable impurities.
The preliminary heat treatment comprises quenching and tempering treatment at 880-920 ℃ for 8-10 h and high-temperature tempering treatment at 600-650 ℃ for 10-30 h.
The final heat treatment comprises surface quenching treatment at 910-950 ℃, cryogenic treatment at-180-160 ℃ for 4-6 h and low-temperature tempering treatment at 80-150 ℃ for 60-150 h.
At present, the conventional time of the cryogenic treatment at the temperature below-150 ℃ is 2-3 hours, and the applicant finds that the cryogenic treatment time is prolonged by 1 time, namely 4-6 hours, so that the hardness of a matrix can be effectively improved, and the depth of higher matrix hardness can be increased.
Before quenching, the deformation of the roller is ensured to be within 3mm through hot straightening.
The invention has the positive effects that: according to the invention, on one hand, the alloy content is optimized (mainly in terms of increasing the Ni content of the conventional Cr3 material), and on the other hand, the heat treatment process is optimized (mainly in terms of selecting the cryogenic treatment temperature and prolonging the cryogenic treatment time), and finally, the forged steel cold-rolling working roll of the Cr3 material with the matrix hardness of more than 65HRC can be manufactured, so that the roll mark resistance requirement can be met.
Detailed Description
Example 1
The manufacturing method of the forged steel cold rolling work roll (specification of Φ435mm×1420mm×3400 mm) with roll mark resistance of the present embodiment is as follows:
(1) smelting and forging a roller blank by adopting a conventional method according to the following chemical components in percentage by weight: carbon 0.95%, silicon 0.70%, manganese 0.40%, phosphorus not more than 0.020%, sulfur not more than 0.015%, chromium 2.90%, nickel 0.75%, molybdenum 0.35%, vanadium 0.20%, and the balance iron and unavoidable impurities.
(2) And (5) performing preliminary heat treatment.
Comprises quenching and tempering treatment for 9 hours at 900+/-5 ℃ and high-temperature tempering treatment for 20 hours at 620+/-5 ℃.
(3) And (5) final heat treatment.
Comprises surface quenching treatment at 930+/-5 ℃, subzero treatment at-170+/-5 ℃ for 5 hours and low-temperature tempering treatment at 120+/-5 ℃ for 96 hours.
Before quenching, the deformation of the roller is ensured to be within 3mm through hot straightening.
Example 2 to example 3
The method of manufacturing the wrought steel cold-rolled working rolls with roll mark resistance of each example was the same as example 1, except for the chemical composition and weight percentage, as shown in table 1.
Example 4 to example 5
The chemical composition and weight percentages of the wrought steel cold-rolled working rolls with roll mark resistance of each example were the same as example 1, except for the final heat treatment process parameters, specifically as shown in table 1.
TABLE 1
Example 1 Example 2 Example 3 Example 4 Example 5
Carbon (C) 0.95% 0.90% 1.00% 0.95% 0.95%
Silicon (Si) 0.70% 0.55% 0.85% 0.70% 0.70%
Manganese (Mn) 0.40% 0.20% 0.60% 0.40% 0.40%
Phosphorus (P) ≤0.020% ≤0.020% ≤0.020% ≤0.020% ≤0.020%
Sulfur (S) ≤0.015% ≤0.015% ≤0.015% ≤0.015% ≤0.015%
Chromium (Cr) 2.90% 2.70% 3.10% 2.90% 2.90%
Nickel (Ni) 0.75% 0.65% 0.85% 0.75% 0.75%
Molybdenum (Mo) 0.35% 0.15% 0.55% 0.35% 0.35%
Vanadium (V) 0.20% 0.10% 0.35% 0.20% 0.20%
Surface quenching temperature 930±5℃ 930±5℃ 930±5℃ 920±5℃ 940±5℃
Cryogenic treatment temperature -170±5℃ -170±5℃ -170±5℃ -175±5℃ -165±5℃
Cryogenic treatment time 5h 5h 5h 4.5h 5.5h
Hardness of matrix 65.6HRC 65.3HRC 65.7HRC 65.4HRC 65.5HRC
Surface hardness 97～98HSD 96～97HSD 97～98HSD 96～97HSD 97～98HSD
Comparative examples 1 to 2
The manufacturing method of the forged steel cold-rolled work rolls of each comparative example was the same as in example 1, except for the nickel content, specifically see table 2.
Comparative examples 3 to 4
The chemical composition and weight percentages of the wrought steel cold-rolled work rolls of each comparative example were the same as in example 1, except for the parameters of the cryogenic treatment process, specifically as shown in table 2.
TABLE 2
Example 1 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4
Nickel (Ni) 0.75% 0.20% 0.40% 0.75% 0.75%
Cryogenic treatment temperature -170±5℃ -170±5℃ -170±5℃ -170±5℃ -100±5℃
Cryogenic treatment time 5h 5h 5h 2.5h 5h
Hardness of matrix 65.6HRC 62.8HRC 63.5HRC 64.3HRC 62.7HRC
Surface hardness 97～98HSD 96～97HSD 96～97HSD 97～98HSD 95～96HSD

Claims (3)

1. A manufacturing method of a forged steel cold rolling working roll with roll mark resistance comprises smelting and forging a roll blank according to chemical components and weight percentages, performing preliminary heat treatment and performing final heat treatment; the method is characterized in that: the chemical components and weight percentages are as follows: 0.88 to 1.05 percent of carbon, 0.50 to 0.90 percent of silicon, 0.10 to 0.70 percent of manganese, less than or equal to 0.020 percent of phosphorus, less than or equal to 0.015 percent of sulfur, 2.60 to 3.20 percent of chromium, 0.60 to 0.90 percent of nickel, 0.10 to 0.60 percent of molybdenum, 0.05 to 0.40 percent of vanadium, and the balance of iron and unavoidable impurities; the final heat treatment comprises surface quenching treatment at 910-950 ℃, cryogenic treatment at-180-160 ℃ for 4-6 h and low-temperature tempering treatment at 80-150 ℃ for 60-150 h.
2. The method for manufacturing a wrought steel cold-rolling working roll with roll mark resistance according to claim 1, characterized in that: the preliminary heat treatment comprises quenching and tempering treatment at 880-920 ℃ for 8-10 h and high-temperature tempering treatment at 600-650 ℃ for 10-30 h.
3. A wrought steel cold-rolled work roll with roll mark resistance properties obtainable by the process of claim 1 or 2.
CN202210717958.7A 2022-06-23 2022-06-23 Forged steel cold rolling working roll with roll mark resistance and manufacturing method thereof Active CN115058651B (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61147815A (en) * 1984-12-21 1986-07-05 Kawasaki Steel Corp Production of roll having high hardened depth
JPS6456826A (en) * 1987-08-27 1989-03-03 Kawasaki Steel Co Production of operating roll for high-load cold rolling mill having great case depth
JPH07145449A (en) * 1993-11-19 1995-06-06 Japan Steel Works Ltd:The High wear resistant cold rolled working roll
CN101265554A (en) * 2008-04-25 2008-09-17 常州宝隆冶金设备制造有限公司 Modified roller material
CN101481776A (en) * 2009-02-13 2009-07-15 宝钢集团常州轧辊制造公司 Cold rolling working roll with anti-rollar mark and high-wearing resistance and manufacturing method thereof
CN104032117A (en) * 2014-05-12 2014-09-10 宜兴市永昌轧辊有限公司 Heat treatment method for ultra-high-hardness nonferrous-metal cold roll
CN105063502A (en) * 2015-07-25 2015-11-18 宜兴市永昌轧辊有限公司 Improved cold roller and preparation method thereof
CN105256245A (en) * 2015-10-15 2016-01-20 中钢集团邢台机械轧辊有限公司 Cold rolling roller with ultra-deep hardening layer and manufacturing method of cold rolling roller
CN108220775A (en) * 2017-12-29 2018-06-29 中钢集团邢台机械轧辊有限公司 A kind of copper foil operation roll of mill
CN109554612A (en) * 2018-12-10 2019-04-02 宜兴市永昌轧辊有限公司 A kind of novel cold rolling working roll and preparation method thereof

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61147815A (en) * 1984-12-21 1986-07-05 Kawasaki Steel Corp Production of roll having high hardened depth
JPS6456826A (en) * 1987-08-27 1989-03-03 Kawasaki Steel Co Production of operating roll for high-load cold rolling mill having great case depth
JPH07145449A (en) * 1993-11-19 1995-06-06 Japan Steel Works Ltd:The High wear resistant cold rolled working roll
CN101265554A (en) * 2008-04-25 2008-09-17 常州宝隆冶金设备制造有限公司 Modified roller material
CN101481776A (en) * 2009-02-13 2009-07-15 宝钢集团常州轧辊制造公司 Cold rolling working roll with anti-rollar mark and high-wearing resistance and manufacturing method thereof
CN104032117A (en) * 2014-05-12 2014-09-10 宜兴市永昌轧辊有限公司 Heat treatment method for ultra-high-hardness nonferrous-metal cold roll
CN105063502A (en) * 2015-07-25 2015-11-18 宜兴市永昌轧辊有限公司 Improved cold roller and preparation method thereof
CN105256245A (en) * 2015-10-15 2016-01-20 中钢集团邢台机械轧辊有限公司 Cold rolling roller with ultra-deep hardening layer and manufacturing method of cold rolling roller
CN108220775A (en) * 2017-12-29 2018-06-29 中钢集团邢台机械轧辊有限公司 A kind of copper foil operation roll of mill
CN109554612A (en) * 2018-12-10 2019-04-02 宜兴市永昌轧辊有限公司 A kind of novel cold rolling working roll and preparation method thereof

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* Cited by examiner, † Cited by third party
Title
唐广银 ; 杨国平 ; .一种新型抗辊印轧辊的研制.金属加工(热加工).2010,(第23期),第49-51页. *
李北玉等.不同材质的锻钢冷轧工作辊耐磨性试验研究.现代交通与冶金材料.2021,(第3期),第86-91页. *

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