CN112981084A - Heat treatment method of full-hardened working roll - Google Patents
Heat treatment method of full-hardened working roll Download PDFInfo
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- CN112981084A CN112981084A CN202110194251.8A CN202110194251A CN112981084A CN 112981084 A CN112981084 A CN 112981084A CN 202110194251 A CN202110194251 A CN 202110194251A CN 112981084 A CN112981084 A CN 112981084A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005496 tempering Methods 0.000 claims abstract description 78
- 238000004321 preservation Methods 0.000 claims abstract description 41
- 238000010791 quenching Methods 0.000 claims abstract description 30
- 230000000171 quenching effect Effects 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims description 8
- 238000002791 soaking Methods 0.000 claims 1
- 230000004075 alteration Effects 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 238000005097 cold rolling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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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
- 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
- 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
-
- 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
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D6/007—Heat treatment of ferrous alloys containing Co
-
- 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
- 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
- C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention relates to a heat treatment method of a roller, in particular to a heat treatment method of a full-hardened work roller, which comprises the following steps: firstly quenching the working roll, and then tempering at high temperature; the quenching process comprises the following steps: quenching preheating, high-temperature heating, constant-temperature quenching and low-temperature tempering, wherein the temperature during the high-temperature heating is 1070-1200 ℃, the heat preservation time is 90-120 min, the temperature during the constant-temperature quenching is 160-220 ℃, and the low-temperature tempering is carried out twice; the high-temperature tempering comprises not less than four times of high-temperature tempering. The working roll processed by the heat treatment method of the fully hardened working roll provided by the invention has the advantages of high hardness, high wear resistance, good toughness, long service life, hardness of more than HRC65, and depth of a hardening layer of the roll of 100%, and has higher bending resistance and surface smoothness, the plate surface quality of the plate can be controlled, the surface quality chromatic aberration of the plate can be reduced, a smooth surface can be rolled, the surface color of the plate is uniform, and the chromatic aberration is small.
Description
Technical Field
The invention relates to a heat treatment method of a roller, in particular to a heat treatment method of a full-hardened working roller.
Background
With the increasing quality requirements of stainless steel plate strips and copper strips, cold rolled products have the characteristics of high dimensional precision, good surface finish, adjustable surface roughness and the like when being rolled at normal temperature. Because of this, the cold rolling production has very high requirements for the roller, and requires higher hardness, excellent wear resistance and better toughness. In particular, in the cold rolling production process of stainless steel, the requirements on the roller (especially the working roller) are higher, compared with carbon steel, the stainless steel has higher deformation resistance (almost twice as high as the carbon steel at most), and the unit rolling pressure of the roller in a rolling deformation area is very high, so that the roller is required to have high hardness and bending resistance; meanwhile, the surface quality requirement of stainless steel is very high, obvious defects are not allowed under the normal condition, even slight color difference exists, so that the roller is required to have good wear resistance, and the surface finish quality cannot be reduced quickly in the rolling process. However, the existing working roll can not meet the requirements, the wear resistance is poor, the service life is short, the roll needs to be frequently repaired, the surface hardness and the smoothness are poor, and the surface of the plate is not smooth, the color difference is large, and the color is uneven.
Disclosure of Invention
In order to solve the problems, the invention provides a heat treatment method of a full-hardened working roll, which can ensure that the surface of the working roll is smooth, the hardness is high, the wear resistance is high, the surface quality of a plate can be ensured, and the surface of the plate is smooth, the color is uniform and the chromatic aberration is small, and the specific technical scheme is as follows:
a method of heat treating a through hardened work roll comprising the steps of: firstly quenching the working roll, and then tempering at high temperature; the quenching process comprises the following steps: quenching preheating, high-temperature heating, constant-temperature quenching and low-temperature tempering, wherein the temperature during the high-temperature heating is 1070-1200 ℃, the heat preservation time is 90-120 min, the temperature during the constant-temperature quenching is 160-220 ℃, and the low-temperature tempering is carried out twice; the high-temperature tempering comprises not less than four times of high-temperature tempering.
Preferably, quenching preheats including going on in proper order, and the temperature in proper order once constant temperature that improves preheats, the secondary constant temperature preheats and the cubic constant temperature preheats: the temperature of the primary constant-temperature preheating is 380-420 ℃, and the heat preservation time is 5-7 h; the temperature of the secondary constant-temperature preheating is 580-620 ℃, and the heat preservation time is 3-5 h; the temperature of the three constant-temperature preheating is 780-820 ℃, and the heat preservation time is 2-4 h.
And the temperature difference between the primary constant-temperature preheating and the secondary constant-temperature preheating and the temperature difference between the secondary constant-temperature preheating and the tertiary constant-temperature preheating are both 180-220 ℃.
Preferably, the temperature of the low-temperature tempering is 160-200 ℃, and the heat preservation time is 3-5 h.
Further, after the low-temperature tempering, the air is cooled to the room temperature.
Preferably, the high temperature tempering comprises the following steps: tempering preheating, primary high-temperature tempering, secondary high-temperature tempering, tertiary high-temperature tempering and quartic high-temperature tempering; the tempering preheating temperature is 380-420 ℃, and the heat preservation time is 3-5 h; the temperature of the primary high-temperature tempering is 500-515 ℃, and the heat preservation time is 3-5 h; the temperature of the secondary high-temperature tempering is 500-515 ℃, and the heat preservation time is 3-5 h; the temperature of the third high-temperature tempering is 540-580 ℃, and the heat preservation time is 3-5 h; the temperature of the four times of high-temperature tempering is 540-580 ℃, and the heat preservation time is 3-5 h.
Further, after the heat preservation of the primary high-temperature tempering and the secondary high-temperature tempering is finished, cooling to room temperature.
And further, after the heat preservation of the three times of high-temperature tempering is finished, cooling the air to the room temperature.
Further, after the heat preservation of the four times of high-temperature tempering is finished, cooling the air to the room temperature.
Compared with the prior art, the invention has the following beneficial effects:
the working roll processed by the heat treatment method of the fully hardened working roll provided by the invention has the advantages of high hardness, high wear resistance, good toughness, long service life, hardness of more than HRC65, and depth of a hardening layer of the roll of 100%, and has higher bending resistance and surface smoothness, the plate surface quality of the plate can be controlled, the surface quality chromatic aberration of the plate can be reduced, a smooth surface can be rolled, the surface color of the plate is uniform, and the chromatic aberration is small.
Drawings
FIG. 1 is a flow chart of quenching;
FIG. 2 is a flow chart of high temperature tempering;
FIG. 3 is a view of a fully hardened work roll of diameter 55;
FIG. 4 is a gold phase diagram of a fully hardened work roll.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 4, the heat treatment method of the through hardened work roll includes the steps of:
firstly quenching the working roll, and then tempering at high temperature;
the quenching process comprises the following steps:
quenching preheating, high-temperature heating, constant-temperature quenching and low-temperature tempering, wherein the temperature during the high-temperature heating is 1070-1200 ℃, the heat preservation time is 90-120 min, the temperature during the constant-temperature quenching is 160-220 ℃, and the low-temperature tempering is carried out twice; the high temperature tempering comprises not less than four times of high temperature tempering.
Specifically, quenching preheats including going on in proper order, and the temperature once constant temperature that improves in proper order preheats, secondary constant temperature preheats and the cubic constant temperature preheats:
the temperature of primary constant-temperature preheating is 380-420 ℃, and the heat preservation time is 5-7 h;
the temperature of the secondary constant-temperature preheating is 580-620 ℃, and the heat preservation time is 3-5 h;
the temperature of the third constant-temperature preheating is 780-820 ℃, and the heat preservation time is 2-4 h.
In at least one embodiment, the temperature difference between the primary constant-temperature preheating and the secondary constant-temperature preheating and the temperature difference between the secondary constant-temperature preheating and the tertiary constant-temperature preheating are all 180-220 ℃.
Wherein the temperature of low-temperature tempering is 160-200 ℃, and the heat preservation time is 3-5 h.
In at least one embodiment, the low temperature tempering is followed by air cooling to room temperature.
The high-temperature tempering process comprises the following steps:
tempering preheating, primary high-temperature tempering, secondary high-temperature tempering, tertiary high-temperature tempering and quartic high-temperature tempering;
the tempering and preheating temperature is 380-420 ℃, and the heat preservation time is 3-5 h;
the temperature of the primary high-temperature tempering is 500-515 ℃, and the heat preservation time is 3-5 h;
the temperature of the secondary high-temperature tempering is 500-515 ℃, and the heat preservation time is 3-5 h;
the temperature of the third high-temperature tempering is 540-580 ℃, and the heat preservation time is 3-5 h;
the temperature of the four times of high-temperature tempering is 540-580 ℃, and the heat preservation time is 3-5 h.
In at least one embodiment, the first high temperature tempering and the second high temperature tempering are cooled to room temperature after the heat preservation is finished.
In at least one embodiment, the air is cooled to room temperature after the heat-preservation of the three high-temperature tempers is completed.
In at least one embodiment, the air is cooled to room temperature after the completion of the heat-retention for the four high-temperature tempers.
The working roll processing flow comprises blank rough processing → quenching + tempering to HRC 65-66 or HRC65 or above, and hardening layer depth of 100% → rough processing → fine processing → grinding → packaging → shipment.
The full hardening means that the hardness of the surface of the working roll is consistent with that of the core part, the hardening is integrally realized, the hardness of the core part is still HRC 65-66 or HRC65 after the surface of the working roll is cut, the working roll can be used for a long time through repeated roll repairing, the service life is long, the roll replacing and repairing period is shortened, and the production efficiency is improved. For example, when the work roll with the diameter of 55 is used to the diameter of 30, the hardness of the work roll with the diameter of 30 is still unchanged and is larger than HRC65, the work roll can be used after being repaired repeatedly, and the work roll with the large diameter on a large rolling mill can be used on a small rolling mill after being scrapped and modified into the work roll with the small diameter, so that the cost of the work roll is greatly reduced.
The heat treatment method of the full-hardened working roll is mainly used for heat treatment of the working roll made of high-speed steel materials. Such as the heat treatment of work rolls made of M42. The high-speed steel comprises the following materials: JIS SKH59, AISI M42, W.Nr.1.3343, GB W2Mo9Cr4VCo8, HITACHI YXM42, BOHLER S500 ERASEL EM 2.
The main component of M42 is shown in the following table, and its content is wt%.
As shown in fig. 1 and 2, the heat treatment method of the fully hardened work roll comprises the following steps:
s1, quenching and preheating, wherein the temperature of primary constant-temperature preheating is 380-420 ℃, and the heat preservation time is 5-7 hours;
s2, quenching and preheating, wherein the temperature of the secondary constant-temperature preheating is 580-620 ℃, and the heat preservation time is 3-5 hours;
and S3, quenching and preheating, wherein the temperature of the three constant-temperature preheating is 780-820 ℃, and the heat preservation time is 2-4 h.
S4, heating at a high temperature, wherein the temperature during the high-temperature heating is 1070-1200 ℃, and the heat preservation time is 90-120 min;
s5, quenching at constant temperature, wherein the temperature during constant temperature quenching is 160-220 ℃;
s6, low-temperature tempering, wherein the temperature of the low-temperature tempering is 160-200 ℃, the heat preservation time is 3-5 hours, and the low-temperature tempering is carried out twice;
s7, tempering and preheating, wherein the tempering and preheating temperature is 380-420 ℃, and the heat preservation time is 3-5 h;
s8, performing primary high-temperature tempering at 500-515 ℃, and keeping the temperature for 3-5 h; cooling to room temperature;
s9, performing secondary high-temperature tempering at 500-515 ℃, and keeping the temperature for 3-5 h; cooling to room temperature;
s10, carrying out tertiary high-temperature tempering at 540-580 ℃, and keeping the temperature for 3-5 h; cooling the air to room temperature;
s11, performing four times of high-temperature tempering at 540-580 ℃, and keeping the temperature for 3-5 hours; the air was cooled to room temperature.
Examples
This example comprises 10 examples, with the material AISI-M42, diameter 55mm, length 855 mm.
As shown in fig. 4, a golden phase diagram of a fully hardened work roll.
Hardness test table after cutting of the full-hardened work roll:
as can be seen from fig. 3 and the above table, the fully hardened work roll produced by the heat treatment method of the fully hardened work roll has uniform surface hardness distribution and smooth surface, and can ensure that the surface of the plate after the plate is corrected is smooth, has no chromatic aberration, and has uniform color.
The heat treatment method of the full-hardened work roll is mainly used for heat treatment of a roll made of M42, and can be used on narrow and wide plate and strip cold rolling and rolling equipment, and the size of a finished product is determined by the diameter
The heat treatment hardness is HRC 65-66, the depth of a roller hardening layer can reach 100%, the product quality can be improved, the plate surface quality can be controlled, the plate surface quality chromatic aberration can be reduced, the use effect is very good, the wear resistance is superior to that of a common commercial working roller, the smooth surface can be rolled, the service life is longer, and the method can be used for producing stainless steel and copper strips.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.
Claims (9)
1. The heat treatment method of the full-hardened working roll is characterized by comprising the following steps of:
firstly quenching the working roll, and then tempering at high temperature;
the quenching process comprises the following steps:
quenching preheating, high-temperature heating, constant-temperature quenching and low-temperature tempering, wherein the temperature during the high-temperature heating is 1070-1200 ℃, the heat preservation time is 90-120 min, the temperature during the constant-temperature quenching is 160-220 ℃, and the low-temperature tempering is carried out twice;
the high-temperature tempering comprises not less than four times of high-temperature tempering.
2. The heat treatment method of a through-hardened work roll according to claim 1, characterized in that the quenching preheating comprises a primary constant temperature preheating, a secondary constant temperature preheating and a tertiary constant temperature preheating which are sequentially carried out and the temperatures of which are sequentially increased:
the temperature of the primary constant-temperature preheating is 380-420 ℃, and the heat preservation time is 5-7 h;
the temperature of the secondary constant-temperature preheating is 580-620 ℃, and the heat preservation time is 3-5 h;
the temperature of the three constant-temperature preheating is 780-820 ℃, and the heat preservation time is 2-4 h.
3. The method for heat-treating a through-hardened work roll according to claim 2, wherein the temperature difference between the primary constant-temperature preheating and the secondary constant-temperature preheating and the temperature difference between the secondary constant-temperature preheating and the tertiary constant-temperature preheating are both 180-220 ℃.
4. The heat treatment method for the fully hardened work roll according to claim 1 or 2, wherein the low-temperature tempering temperature is 160-200 ℃ and the holding time is 3-5 hours.
5. The method of heat treating a through hardened work roll of claim 4 wherein said low temperature tempering is followed by air cooling to room temperature.
6. The method for heat-treating a through-hardened work roll according to claim 1 or 2, characterized in that the high-temperature tempering comprises the following steps:
tempering preheating, primary high-temperature tempering, secondary high-temperature tempering, tertiary high-temperature tempering and quartic high-temperature tempering;
the tempering preheating temperature is 380-420 ℃, and the heat preservation time is 3-5 h;
the temperature of the primary high-temperature tempering is 500-515 ℃, and the heat preservation time is 3-5 h;
the temperature of the secondary high-temperature tempering is 500-515 ℃, and the heat preservation time is 3-5 h;
the temperature of the third high-temperature tempering is 540-580 ℃, and the heat preservation time is 3-5 h;
the temperature of the four times of high-temperature tempering is 540-580 ℃, and the heat preservation time is 3-5 h.
7. The method of heat treating a through hardened work roll according to claim 6, wherein the primary high temperature tempering and the secondary high temperature tempering are cooled to room temperature after the completion of the holding.
8. The method of heat treating a through hardened work roll according to claim 6 where the three high temperature tempers are air cooled to room temperature after the completion of the holding.
9. The method for heat-treating a through-hardened work roll according to claim 6, wherein the four high-temperature tempers are air-cooled to room temperature after the completion of the soaking.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114774643A (en) * | 2022-05-10 | 2022-07-22 | 无锡亿宝机械设备有限公司 | Improved heat treatment method for M42 material full-hardened working roll |
| RU2816704C1 (en) * | 2023-04-18 | 2024-04-03 | Федеральное государственное бюджетное образовательное учреждение высшего образования "ОРЛОВСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ имени И.С. ТУРГЕНЕВА" (ОГУ им. И.С. Тургенева) | Method of heat treatment of rolls of rolling mills |
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2021
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|---|---|---|---|---|
| JPH01129929A (en) * | 1987-11-13 | 1989-05-23 | Hitachi Ltd | Production of work roll for hot rolling |
| RU2163644C1 (en) * | 1999-12-29 | 2001-02-27 | Ветер Владимир Владимирович | Method of rolls heat treatment |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114774643A (en) * | 2022-05-10 | 2022-07-22 | 无锡亿宝机械设备有限公司 | Improved heat treatment method for M42 material full-hardened working roll |
| RU2816704C1 (en) * | 2023-04-18 | 2024-04-03 | Федеральное государственное бюджетное образовательное учреждение высшего образования "ОРЛОВСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ имени И.С. ТУРГЕНЕВА" (ОГУ им. И.С. Тургенева) | Method of heat treatment of rolls of rolling mills |
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