CN115058651A - 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 PDFInfo
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- CN115058651A CN115058651A CN202210717958.7A CN202210717958A CN115058651A CN 115058651 A CN115058651 A CN 115058651A CN 202210717958 A CN202210717958 A CN 202210717958A CN 115058651 A CN115058651 A CN 115058651A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000005097 cold rolling Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005496 tempering Methods 0.000 claims abstract description 11
- 238000010791 quenching Methods 0.000 claims abstract description 10
- 230000000171 quenching effect Effects 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 239000011733 molybdenum Substances 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 5
- 239000011593 sulfur Substances 0.000 claims abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000003723 Smelting Methods 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 239000011651 chromium Substances 0.000 claims abstract description 4
- 238000005242 forging Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 7
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical compound [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
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
- C22C38/02—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
Landscapes
- 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)
- Geometry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a forged steel cold rolling working roll with roll mark resistance and a manufacturing method thereof, and the method comprises the steps of 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 the weight percentage 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 inevitable impurities; the final heat treatment comprises surface quenching treatment at 910-950 ℃, subzero treatment at-180-160 ℃ 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 the Ni content of the conventional Cr3 material is increased), and on the other hand, the heat treatment process is optimized (mainly the cryogenic treatment temperature is selected and the cryogenic treatment time is prolonged), so that the forged steel cold rolling working roll of the Cr3 material with the matrix hardness of more than 65HRC can be finally prepared, and the roll mark resistance requirement can be met.
Description
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, the method for solving the problems of roll marks and scratches of the plates mainly aims at controlling relevant factors. For example, methods of controlling the pressing of the roll system, controlling the tension deviation of each stand, adding a dedicated baffle to the rolling mill, cleaning the nozzle, and the like; in addition, methods such as controlling the grinding of the roll and texturing may be employed to further reduce the occurrence of roll marks and scratches.
However, many of the above methods cannot be effectively implemented considering the different actual use conditions of each steel mill, and some methods may work in a certain steel mill but may not work in another steel mill.
The hardness of the matrix of the forged steel cold rolling working roll with the roll mark resistance is required to be more than 65HRC, and the hardness of the matrix of the existing forged steel cold rolling working roll made of Cr3 material is difficult to meet the requirement. Therefore, the work rolls for cold rolling of forged steel having rolling mark resistance are basically made of Cr5 (documents 1 to 2) or Cr6 (documents 3 to 5).
Therefore, the technical problem to be solved in the field is to improve the matrix hardness of the forged steel cold rolling working roll made of Cr3 material to enable the forged steel cold rolling working roll to have the rolling mark resistance.
Document 1: chinese patent document CN102644026A, published 2012, 8, 22.
Document 2: chinese patent document CN104195450A, published 2014, 12 months and 10 days.
Document 3: chinese patent document CN101481776A, published 2009, 7/15.
Document 4: chinese patent document CN103614635A, published 3/5/2014.
Document 5: chinese patent document CN106734805A, published 2017, 5 and 31.
Disclosure of Invention
The invention aims to solve the problems and provides a forged steel cold rolling work roll which is made of Cr3 material and has the rolling mark resistance and the matrix hardness of 65HRC or more and a manufacturing method thereof, so as to fill the blank in the field.
The technical scheme for realizing the purpose of the invention is as follows: a method for manufacturing a forged steel cold rolling working roll with roll mark resistance comprises the steps of 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 the weight percentage 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 inevitable impurities.
The preliminary heat treatment comprises quenching and tempering at 880-920 ℃ for 8-10 hours and high-temperature tempering at 600-650 ℃ for 10-30 hours.
The final heat treatment comprises surface quenching treatment at 910-950 ℃, subzero 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 subzero treatment at the temperature of below 150 ℃ below zero is 2-3 h, and the applicant finds that the subzero treatment time is prolonged by 1 time, namely 4-6 h, 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 thermal straightening.
The invention has the following positive effects: according to the invention, on one hand, by optimizing the alloy content (mainly increasing the Ni content of the conventional Cr3 material) and on the other hand, by optimizing the heat treatment process (mainly selecting the cryogenic treatment temperature and prolonging the cryogenic treatment time), the forged steel cold rolling working roll of the Cr3 material with the matrix hardness of more than 65HRC can be finally prepared, so that the roll mark resistance requirement can be met.
Detailed Description
(example 1)
The forged steel cold rolling work roll (having a gauge of Φ 435mm × 1420mm × 3400 mm) having roll mark resistance of the present example was produced by the following method:
smelting and forging a roller blank by a conventional method according to the following chemical components in percentage by weight: 0.95 percent of carbon, 0.70 percent of silicon, 0.40 percent of manganese, less than or equal to 0.020 percent of phosphorus, less than or equal to 0.015 percent of sulfur, 2.90 percent of chromium, 0.75 percent of nickel, 0.35 percent of molybdenum, 0.20 percent of vanadium, and the balance of iron and inevitable impurities.
② preliminary heat treatment.
Comprises quenching and tempering at 900 +/-5 ℃ for 9 hours and tempering at 620 +/-5 ℃ for 20 hours.
And thirdly, final heat treatment.
Comprises surface quenching treatment at 930 +/-5 ℃, deep cooling treatment at-170 +/-5 ℃ for 5h and low-temperature tempering treatment at 120 +/-5 ℃ for 96 h.
Before quenching, the deformation of the roller is ensured to be within 3mm through hot straightening.
(examples 2 to 3)
The manufacturing method of the forged steel cold rolling working roll with the rolling mark resistance of each example is the same as that of example 1, except for the chemical components and the weight percentage, which is shown in table 1.
(examples 4 to 5)
The forged steel cold rolling working roll with the rolling mark resistance of each example has the same chemical components and weight percentages as those of example 1, except for the final heat treatment process parameters, which are 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 | 0.70% | 0.55% | 0.85% | 0.70% | 0.70% |
| Manganese oxide | 0.40% | 0.20% | 0.60% | 0.40% | 0.40% |
| Phosphorus (P) | ≤0.020% | ≤0.020% | ≤0.020% | ≤0.020% | ≤0.020% |
| Sulfur | ≤0.015% | ≤0.015% | ≤0.015% | ≤0.015% | ≤0.015% |
| Chromium (III) | 2.90% | 2.70% | 3.10% | 2.90% | 2.90% |
| Nickel (II) | 0.75% | 0.65% | 0.85% | 0.75% | 0.75% |
| Molybdenum (Mo) | 0.35% | 0.15% | 0.55% | 0.35% | 0.35% |
| Vanadium oxide | 0.20% | 0.10% | 0.35% | 0.20% | 0.20% |
| Temperature of surface hardening | 930±5℃ | 930±5℃ | 930±5℃ | 920±5℃ | 940±5℃ |
| Temperature of cryogenic treatment | -170±5℃ | -170±5℃ | -170±5℃ | -175±5℃ | -165±5℃ |
| Time of cryogenic treatment | 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 example 1 to comparative example 2)
The production process of each comparative forged steel cold-rolled work roll was the same as in example 1, except for the nickel content, as specified in table 2.
(comparative examples 3 to 4)
The chemical components and weight percentages of the forged steel cold rolling working rolls in each proportion are the same as those of the working roll in the example 1, except for the cryogenic treatment process parameters, which are shown in the table 2.
TABLE 2
| Example 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Nickel (II) | 0.75% | 0.20% | 0.40% | 0.75% | 0.75% |
| Temperature of cryogenic treatment | -170±5℃ | -170±5℃ | -170±5℃ | -170±5℃ | -100±5℃ |
| Time of cryogenic treatment | 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 (5)
1. A manufacturing method of a forged steel cold rolling working roll with roll mark resistance comprises the steps of 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 the weight percentage 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 inevitable impurities.
2. The method for manufacturing a forged steel cold-rolled work roll having roll mark resistance according to claim 1, wherein: the preliminary heat treatment comprises quenching and tempering at 880-920 ℃ for 8-10 hours and high-temperature tempering at 600-650 ℃ for 10-30 hours.
3. The method for manufacturing a forged steel cold-rolled work roll having roll mark resistance according to claim 1, wherein: the final heat treatment comprises surface quenching treatment at 910-950 ℃, subzero treatment at-180-160 ℃ for 4-6 h, and low-temperature tempering treatment at 80-150 ℃ for 60-150 h.
4. The method for manufacturing a forged steel cold-rolled work roll having roll mark resistance according to claim 2, wherein: the final heat treatment comprises surface quenching treatment at 910-950 ℃, subzero treatment at-180-160 ℃ for 4-6 h, and low-temperature tempering treatment at 80-150 ℃ for 60-150 h.
5. A forged steel cold rolled work roll having roll mark resistance properties made by the method of any one of claims 1 to 4.
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| 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 |
-
2022
- 2022-06-23 CN CN202210717958.7A patent/CN115058651B/en active Active
Patent Citations (10)
| 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 |
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