CN106319165A - Ultra-temperature short time tempering method for cold roll hardening and tempering - Google Patents
Ultra-temperature short time tempering method for cold roll hardening and tempering Download PDFInfo
- Publication number
- CN106319165A CN106319165A CN201610757901.4A CN201610757901A CN106319165A CN 106319165 A CN106319165 A CN 106319165A CN 201610757901 A CN201610757901 A CN 201610757901A CN 106319165 A CN106319165 A CN 106319165A
- Authority
- CN
- China
- Prior art keywords
- roll
- tempering
- temperature
- hardening
- cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005496 tempering Methods 0.000 title claims abstract description 17
- 238000010791 quenching Methods 0.000 claims abstract description 25
- 230000000171 quenching effect Effects 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 6
- 238000005242 forging Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052742 iron Inorganic materials 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
- 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
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- 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
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 discloses an ultra-temperature short time tempering method for cold roll hardening and tempering. The ultra-temperature short time tempering method comprises the following steps that a forged steel cold roll is fed and subjected to phased heating according to a technology; the parameters of hardening and tempering quenching equipment are that the rotating speed is 40-50 r/min, and the water pressure is 0.4-0.6 MPa; the heated roll is hoisted out and placed on the hardening and tempering quenching equipment, a roll body of the cold roll is subjected to spray quenching and water cooling for 20-60 min, and hardening and tempering quenching is completed after the temperature of the roll body of the roll is below 230 DEG C; the roll subjected to hardening and tempering quenching is guided into a resistance furnace to be heated for 3-8 hours after the temperature is raised to 350 DEG C according to following technologies, is subjected to heat preservation for 4-6 hours after the temperature reaches 640-680 DEG C, and is discharged after the temperature is reduced to 300 DEG C; and the roll is put in storage after being subjected to hardness detection. According to the ultra-temperature short time tempering method for cold roll hardening and tempering, the total reacting time is effectively controlled, production efficiency is improved, energy is saved, cost is reduced, and the environment is not polluted.
Description
Technical field
The invention belongs to iron and steel forging field, be specifically related to a kind of cold roll quenched superhigh temperature tempering method in short-term.
Background technology
Along with the application of cold roll is increasingly wider, improves and produce, save the energy and to come more to be come into one's own.And original work
The skill time is long, therefore improves cold roll heat treatment efficiency and becomes problem in the urgent need to address.
Summary of the invention
Goal of the invention: present invention aims to the deficiencies in the prior art, it is provided that a kind of quenched superhigh temperature of cold roll
Tempering method in short-term.
Technical scheme: in order to reach foregoing invention purpose, the present invention is specifically achieved like this: a kind of cold roll is quenched
Superhigh temperature tempering method in short-term, comprises the following steps:
(1) by forging steel cold roll shove charge, heat stage by stage by technique；
(2) quenched quenching apparatus parameter: 40 ~ 50r/min, hydraulic pressure 0.4 ~ 0.6MPa；
(3) add the roll after heating to hang out, be positioned on quenched quenching apparatus, the cold roll body of roll carry out spraying hardening cold 20 ~
60min, treats that roll barrel temperature is less than 230 DEG C, and quenched quenching terminates；
(4) roll after quenched quenching being terminated imports in resistance furnace and heats up 350 DEG C of continuous heatings 3 ~ 8 hours by following technique,
After arriving 640 ~ 680 DEG C, it is incubated 4 ~ 6 hours, comes out of the stove after furnace temperature is down to 300 DEG C；
(5) put in storage after roll is carried out hardness determination.
Wherein, in step (4), programming rate is 50 ~ 70 DEG C/h.
Beneficial effect: the present invention effectively controls reaction total time, improves production efficiency, has saved the energy, i.e. reduces
Cost environmentally safe again.
Detailed description of the invention
Embodiment 1:
By forging steel cold roll shove charge, heat stage by stage by technique；Quenched quenching apparatus parameter: 40r/min, hydraulic pressure 0.4MPa；Add
Roll after heating hangs out, and is positioned on quenched quenching apparatus, and the cold roll body of roll carries out spraying the cold 20 ~ 60min of hardening, to be rolled
Roller body of roll temperature is less than 230 DEG C, and quenched quenching terminates；By following technique in roll importing resistance furnace after quenched quenching is terminated
Heat up 350 DEG C of continuous heatings 3 ~ 8 hours, is incubated 4 ~ 6 hours after arriving 640 ~ 680 DEG C, and programming rate is 50 ~ 70 DEG C/h, treats
Furnace temperature is come out of the stove after being down to 300 DEG C；Put in storage after roll is carried out hardness determination.
Embodiment 2:
By forging steel cold roll shove charge, heat stage by stage by technique；Quenched quenching apparatus parameter: 45r/min, hydraulic pressure 0.5MPa；Add
Roll after heating hangs out, and is positioned on quenched quenching apparatus, and the cold roll body of roll carries out spraying the cold 20 ~ 60min of hardening, to be rolled
Roller body of roll temperature is less than 230 DEG C, and quenched quenching terminates；By following technique in roll importing resistance furnace after quenched quenching is terminated
Heat up 350 DEG C of continuous heatings 3 ~ 8 hours, is incubated 4 ~ 6 hours after arriving 640 ~ 680 DEG C, and programming rate is 50 ~ 70 DEG C/h, treats
Furnace temperature is come out of the stove after being down to 300 DEG C；Put in storage after roll is carried out hardness determination.
Embodiment 3:
By forging steel cold roll shove charge, heat stage by stage by technique；Quenched quenching apparatus parameter: 50r/min, hydraulic pressure 0.6MPa；Add
Roll after heating hangs out, and is positioned on quenched quenching apparatus, and the cold roll body of roll carries out spraying the cold 20 ~ 60min of hardening, to be rolled
Roller body of roll temperature is less than 230 DEG C, and quenched quenching terminates；By following technique in roll importing resistance furnace after quenched quenching is terminated
Heat up 350 DEG C of continuous heatings 3 ~ 8 hours, is incubated 4 ~ 6 hours after arriving 640 ~ 680 DEG C, and programming rate is 50 ~ 70 DEG C/h, treats
Furnace temperature is come out of the stove after being down to 300 DEG C；Put in storage after roll is carried out hardness determination.
Claims (2)
1. a cold roll quenched superhigh temperature tempering method in short-term, it is characterised in that comprise the following steps:
(1) by forging steel cold roll shove charge, heat stage by stage by technique；
(2) quenched quenching apparatus parameter: 40 ~ 50r/min, hydraulic pressure 0.4 ~ 0.6MPa；
(3) add the roll after heating to hang out, be positioned on quenched quenching apparatus, the cold roll body of roll carry out spraying hardening cold 20 ~
60min, treats that roll barrel temperature is less than 230 DEG C, and quenched quenching terminates；
(4) roll after quenched quenching being terminated imports in resistance furnace and heats up 350 DEG C of continuous heatings 3 ~ 8 hours by following technique,
After arriving 640 ~ 680 DEG C, it is incubated 4 ~ 6 hours, comes out of the stove after furnace temperature is down to 300 DEG C；
(5) put in storage after roll is carried out hardness determination.
Cold roll the most according to claim 1 quenched superhigh temperature tempering method in short-term, it is characterised in that rise in step (4)
Temperature speed is 50 ~ 70 DEG C/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610757901.4A CN106319165A (en) | 2016-08-30 | 2016-08-30 | Ultra-temperature short time tempering method for cold roll hardening and tempering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610757901.4A CN106319165A (en) | 2016-08-30 | 2016-08-30 | Ultra-temperature short time tempering method for cold roll hardening and tempering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106319165A true CN106319165A (en) | 2017-01-11 |
Family
ID=57789146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610757901.4A Pending CN106319165A (en) | 2016-08-30 | 2016-08-30 | Ultra-temperature short time tempering method for cold roll hardening and tempering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106319165A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177725A (en) * | 2017-06-29 | 2017-09-19 | 太仓市钧胜轧辊有限公司 | A kind of modifier treatment technique for roll |
| CN109536696A (en) * | 2018-12-10 | 2019-03-29 | 宜兴市永昌轧辊有限公司 | A kind of tempering process of New Type of Cold Roller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0466619A (en) * | 1990-07-05 | 1992-03-03 | Kubota Corp | Heat treatment method for composite HSS rolls |
| CN1147020A (en) * | 1995-10-04 | 1997-04-09 | 重庆钢铁(集团)有限责任公司 | Heat treatment for eliminating soft zone in supporting roll |
| CN102644026A (en) * | 2011-02-22 | 2012-08-22 | 宝山钢铁股份有限公司 | Cold roll and manufacturing method thereof |
| CN104032103A (en) * | 2014-05-12 | 2014-09-10 | 宜兴市永昌轧辊有限公司 | Heat treatment method for superdeep-hardening-layer cold roll and quenching equipment employed during heat treatment |
| CN104294168A (en) * | 2014-08-21 | 2015-01-21 | 宜兴市永昌轧辊有限公司 | Contact fatigue-highly resistant cold-rolling intermediate roller and manufacture method thereof |
-
2016
- 2016-08-30 CN CN201610757901.4A patent/CN106319165A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0466619A (en) * | 1990-07-05 | 1992-03-03 | Kubota Corp | Heat treatment method for composite HSS rolls |
| CN1147020A (en) * | 1995-10-04 | 1997-04-09 | 重庆钢铁(集团)有限责任公司 | Heat treatment for eliminating soft zone in supporting roll |
| CN102644026A (en) * | 2011-02-22 | 2012-08-22 | 宝山钢铁股份有限公司 | Cold roll and manufacturing method thereof |
| CN104032103A (en) * | 2014-05-12 | 2014-09-10 | 宜兴市永昌轧辊有限公司 | Heat treatment method for superdeep-hardening-layer cold roll and quenching equipment employed during heat treatment |
| CN104294168A (en) * | 2014-08-21 | 2015-01-21 | 宜兴市永昌轧辊有限公司 | Contact fatigue-highly resistant cold-rolling intermediate roller and manufacture method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 毛天宏等: "2800轧机-1800mm大型支承辊的热处理技术", 《大型铸锻件》 * |
| 马伯龙: "《热处理工艺设计与选择》", 31 May 2013, 北京：机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177725A (en) * | 2017-06-29 | 2017-09-19 | 太仓市钧胜轧辊有限公司 | A kind of modifier treatment technique for roll |
| CN109536696A (en) * | 2018-12-10 | 2019-03-29 | 宜兴市永昌轧辊有限公司 | A kind of tempering process of New Type of Cold Roller |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |