CN113416831A - Heat treatment process method for wide aluminum cold-rolled working roll - Google Patents
Heat treatment process method for wide aluminum cold-rolled working roll Download PDFInfo
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- CN113416831A CN113416831A CN202110586257.XA CN202110586257A CN113416831A CN 113416831 A CN113416831 A CN 113416831A CN 202110586257 A CN202110586257 A CN 202110586257A CN 113416831 A CN113416831 A CN 113416831A
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- temperature
- roller
- tempering
- quenching
- heat treatment
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 15
- 238000005496 tempering Methods 0.000 claims abstract description 47
- 238000011282 treatment Methods 0.000 claims abstract description 29
- 238000010791 quenching Methods 0.000 claims abstract description 20
- 230000000171 quenching effect Effects 0.000 claims abstract description 20
- 230000006698 induction Effects 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000007711 solidification Methods 0.000 claims abstract description 10
- 230000008023 solidification Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000005097 cold rolling Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 238000003723 Smelting Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000007670 refining Methods 0.000 description 5
- 238000010080 roll forging Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- C21D6/04—Hardening by cooling below 0 degrees Celsius
Landscapes
- 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)
Abstract
The invention relates to the technical field of roller manufacturing, in particular to a heat treatment process method of a wide aluminum cold-rolled working roller, which comprises the following steps: carrying out continuous induction heating quenching at the heating temperature of 960-1050 ℃, carrying out quenching cooling in a continuous water spraying manner after the roller moves out of the induction coil, and continuously carrying out water spraying cooling on the roller after the quenching heating is finished; carrying out subzero treatment on the treated roller, wherein the subzero treatment temperature is-120-180 ℃; tempering the treated roller, wherein the low-temperature stress relief tempering temperature is 80-150 ℃, and the high-temperature solidification structure tempering temperature is 150-200 ℃; after the steps are finished according to the sequence, processing the blank into a finished product according to the requirements of the drawing; the invention ensures that the roller has high hardness and high tempering temperature, meets various performance parameters of the plate, and simultaneously improves the rolling efficiency.
Description
Technical Field
The invention relates to the technical field of roller manufacturing, in particular to a heat treatment process method for a wide aluminum cold-rolling working roller.
Background
The rolling temperature of the conventional aluminum plate strip is normal-temperature rolling, along with the development of the industry, the performance requirement of the aluminum plate is continuously improved, some special plates need to be rolled at super normal temperature, and the rolling temperature is increased to a higher temperature from the normal temperature. Along with the increase of the rolling temperature, the performance requirements of the plate are met, and a new rolling process is urgently needed to ensure the normal rolling of the aluminum plate.
Disclosure of Invention
Aiming at the problems, the invention adopts a heat treatment method for the wide aluminum cold rolling working roll, ensures that the rolling roll has high hardness and high tempering temperature, meets various performance parameters of the plate, and simultaneously improves the rolling efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
a heat treatment process method for a wide aluminum cold rolling working roll is characterized by comprising the following steps: the method comprises the following steps:
step 1, continuously carrying out induction heating quenching at the heating temperature of 960-1050 ℃, carrying out quenching cooling in a continuous water spraying manner after a roller moves out of an induction coil, and continuously carrying out water spraying cooling on the roller after quenching heating is finished;
step 2, carrying out subzero treatment on the roller treated in the step 1, wherein the subzero treatment temperature is-120-180 ℃;
step 3, tempering the roller treated in the step 2, wherein the low-temperature destressing tempering temperature is 80-150 ℃, and the high-temperature solidification structure tempering temperature is 150-200 ℃;
and 4, processing the product to a finished product according to the drawing requirements after the steps 1-3 are completed.
The technical scheme of the invention is further improved as follows: after the roller is quenched and deeply cooled, two tempering treatments are adopted, namely low-temperature tempering stress removal and high-temperature tempering solidification of the structure.
Compared with the prior art, the heat treatment process method for the wide aluminum cold-rolled working roll has the following beneficial effects:
1. the invention provides a heat treatment process method of a wide aluminum cold-rolled working roll, which is used for tempering a roll body to obtain a product with a deeper hardening layer depth and a smaller hardness gradient, and the product has higher hardness, more stable structure and better service performance.
2. The invention provides a heat treatment process method of a wide aluminum cold rolling working roll, a tempered product can obtain a stable structure state with high hardness and low stress on a roll body, the applicable rolling temperature of the roll is greatly improved, and the accident resistance of the roll is stronger.
3. The invention provides a heat treatment process method of a wide aluminum cold-rolled working roll, wherein two times of tempering are used for replacing one time of tempering, so that the stability of the roll is improved, and the combination of high-temperature tempering and low-temperature tempering ensures high hardness and high structure stability.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description. It should be apparent that the described embodiments are only a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The working roll of the heat treatment process has the following requirements:
and (3) specification of the roller:
single weight: 6.1 ton, the hardness requirement of the roller body is as follows: HSD 94-98.
Roller material: the alloy forged steel is prepared by adopting electric furnace smelting, ladle refining and electroslag remelting, and a steel ingot is heated and forged into a roll forging stock according to the process requirements.
The heat treatment method comprises the following final heat treatment steps:
A. continuous induction hardening: heating to 970 ℃, quenching and cooling the roller in a continuous water spraying mode after the roller moves out of the induction coil, and continuously spraying water to cool the roller after quenching and heating are finished;
B. cryogenic treatment: b, performing cryogenic treatment on the roller treated in the step A, wherein the cryogenic treatment temperature is-120 ℃;
C. tempering treatment: b, tempering the roller treated in the step B, wherein the low-temperature destressing tempering temperature is 120 ℃, and the high-temperature solidification structure tempering temperature is 160 ℃;
D. and after the A-C is finished, processing the blank into a finished product according to the requirements of the drawing.
Example 2
The working roll of the heat treatment process has the following requirements:
and (3) specification of the roller: phi 500/460 × 3000 × 5400, singlet: 6.1 ton, the hardness requirement of the roller body is as follows: HSD 94-98.
Roller material: the alloy forged steel is prepared by adopting electric furnace smelting, ladle refining and electroslag remelting, and a steel ingot is heated and forged into a roll forging stock according to the process requirements.
The heat treatment method comprises the following final heat treatment steps:
A. continuous induction hardening: heating at 1010 ℃, quenching and cooling the roller in a continuous water spraying mode after the roller moves out of the induction coil, and continuously spraying water for cooling the roller after quenching and heating are finished;
B. cryogenic treatment: b, performing cryogenic treatment on the roller treated in the step A, wherein the cryogenic treatment temperature is-120 ℃;
C. tempering treatment: b, tempering the roller treated in the step B, wherein the low-temperature destressing tempering temperature is 120 ℃, and the high-temperature solidification structure tempering temperature is 160 ℃;
D. and after the A-C is finished, processing the blank into a finished product according to the requirements of the drawing.
Example 3
The working roll of the heat treatment process has the following requirements:
and (3) specification of the roller:
single weight: 6.1 ton, the hardness requirement of the roller body is as follows: HSD 94-98.
Roller material: the alloy forged steel is prepared by adopting electric furnace smelting, ladle refining and electroslag remelting, and a steel ingot is heated and forged into a roll forging stock according to the process requirements.
The heat treatment method comprises the following final heat treatment steps:
A. continuous induction hardening: heating at 1010 ℃, quenching and cooling the roller in a continuous water spraying mode after the roller moves out of the induction coil, and continuously spraying water for cooling the roller after quenching and heating are finished;
B. cryogenic treatment: b, performing cryogenic treatment on the roller treated in the step A, wherein the cryogenic treatment temperature is-150 ℃;
C. tempering treatment: b, tempering the roller treated in the step B, wherein the low-temperature destressing tempering temperature is 120 ℃, and the high-temperature solidification structure tempering temperature is 160 ℃;
D. and after the A-C is finished, processing the blank into a finished product according to the requirements of the drawing.
Example 4
The working roll of the heat treatment process has the following requirements:
and (3) specification of the roller:
single weight: 6.1 ton, the hardness requirement of the roller body is as follows: HSD 94-98.
Roller material: the alloy forged steel is prepared by adopting electric furnace smelting, ladle refining and electroslag remelting, and a steel ingot is heated and forged into a roll forging stock according to the process requirements.
The heat treatment method comprises the following final heat treatment steps:
A. continuous induction hardening: heating at 1010 ℃, quenching and cooling the roller in a continuous water spraying mode after the roller moves out of the induction coil, and continuously spraying water for cooling the roller after quenching and heating are finished;
B. cryogenic treatment: b, performing cryogenic treatment on the roller treated in the step A, wherein the cryogenic treatment temperature is-120 ℃;
C. tempering treatment: b, tempering the roller treated in the step B, wherein the low-temperature destressing tempering temperature is 140 ℃, and the high-temperature solidification structure tempering temperature is 160 ℃;
D. and after the A-C is finished, processing the blank into a finished product according to the requirements of the drawing.
Example 5
The working roll of the heat treatment process has the following requirements:
and (3) specification of the roller: phi 500/460 × 3000 × 5400, singlet: 6.1 ton, the hardness requirement of the roller body is as follows: HSD 94-98.
Roller material: the alloy forged steel is prepared by adopting electric furnace smelting, ladle refining and electroslag remelting, and a steel ingot is heated and forged into a roll forging stock according to the process requirements.
The heat treatment method comprises the following final heat treatment steps:
A. continuous induction hardening: heating at 1010 ℃, quenching and cooling the roller in a continuous water spraying mode after the roller moves out of the induction coil, and continuously spraying water for cooling the roller after quenching and heating are finished;
B. cryogenic treatment: b, performing cryogenic treatment on the roller treated in the step A, wherein the cryogenic treatment temperature is-120 ℃;
C. tempering treatment: b, tempering the roller treated in the step B, wherein the low-temperature destressing tempering temperature is 120 ℃, and the high-temperature solidification structure tempering temperature is 170 ℃;
D. and after the A-C is finished, processing the blank into a finished product according to the requirements of the drawing.
Control test
The present examples 1-5 differ from conventional rolling (control) in step C of the above example, where the rolling was once tempered at a tempering temperature of 160 ℃.
To illustrate the advantages of the present invention, the hardness and residual stress were measured after the final quenching and tempering of the products of examples 1 to 5 and the control test. The results of the measurements are shown in the following table:
from the table, it can be seen that the tempering hardness of the steel prepared in the embodiments 1 to 5 is higher than that after one-time tempering, and the residual stress is lower; namely, high-low temperature combined tempering treatment is adopted, and the roller can obtain high hardness when being tempered at higher temperature.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the appended claims.
Claims (2)
1. A heat treatment process method for a wide aluminum cold rolling working roll is characterized by comprising the following steps: the method comprises the following steps:
step 1, continuously carrying out induction heating quenching at the heating temperature of 960-1050 ℃, carrying out quenching cooling in a continuous water spraying manner after a roller moves out of an induction coil, and continuously carrying out water spraying cooling on the roller after quenching heating is finished;
step 2, carrying out subzero treatment on the roller treated in the step 1, wherein the subzero treatment temperature is-120-180 ℃;
step 3, tempering the roller treated in the step 2, wherein the low-temperature destressing tempering temperature is 80-150 ℃, and the high-temperature solidification structure tempering temperature is 150-200 ℃;
and 4, processing the product to a finished product according to the drawing requirements after the steps 1-3 are completed.
2. The heat treatment process method for the wide aluminum cold-rolled working roll according to claim 1, characterized in that: after the roller is quenched and deeply cooled, two tempering treatments are adopted, namely low-temperature tempering stress removal and high-temperature tempering solidification of the structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110586257.XA CN113416831A (en) | 2021-05-27 | 2021-05-27 | Heat treatment process method for wide aluminum cold-rolled working roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110586257.XA CN113416831A (en) | 2021-05-27 | 2021-05-27 | Heat treatment process method for wide aluminum cold-rolled working roll |
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| Publication Number | Publication Date |
|---|---|
| CN113416831A true CN113416831A (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110586257.XA Pending CN113416831A (en) | 2021-05-27 | 2021-05-27 | Heat treatment process method for wide aluminum cold-rolled working roll |
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Cited By (1)
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195450A (en) * | 2014-08-21 | 2014-12-10 | 宜兴市永昌轧辊有限公司 | Heat treatment method of cold-rolled working roll with high wear resistance and roll mark resistance |
| EP2857126A2 (en) * | 2013-10-02 | 2015-04-08 | Uddeholms AB | Corrosion and wear resistant cold work tool steel |
| CN109487160A (en) * | 2018-12-10 | 2019-03-19 | 宜兴市永昌轧辊有限公司 | A kind of novel semi high speed steel cold-rolling intermediate roll and preparation method thereof |
-
2021
- 2021-05-27 CN CN202110586257.XA patent/CN113416831A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2857126A2 (en) * | 2013-10-02 | 2015-04-08 | Uddeholms AB | Corrosion and wear resistant cold work tool steel |
| CN104195450A (en) * | 2014-08-21 | 2014-12-10 | 宜兴市永昌轧辊有限公司 | Heat treatment method of cold-rolled working roll with high wear resistance and roll mark resistance |
| CN109487160A (en) * | 2018-12-10 | 2019-03-19 | 宜兴市永昌轧辊有限公司 | A kind of novel semi high speed steel cold-rolling intermediate roll and preparation method thereof |
Cited By (1)
| 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 |
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Application publication date: 20210921 |