CN107354284A - A kind of Technology for Heating Processing for roll - Google Patents
A kind of Technology for Heating Processing for roll Download PDFInfo
- Publication number
- CN107354284A CN107354284A CN201710515042.2A CN201710515042A CN107354284A CN 107354284 A CN107354284 A CN 107354284A CN 201710515042 A CN201710515042 A CN 201710515042A CN 107354284 A CN107354284 A CN 107354284A
- Authority
- CN
- China
- Prior art keywords
- roll
- technology
- heating processing
- quenching
- normalizing
- 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
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
Abstract
The invention discloses a kind of Technology for Heating Processing for roll, passes sequentially through normalizing, quenching, tempering, 4 steps of cooling, is specially：First roll is put into normalizing furnace, 10 20 minutes are incubated after being heated to 50 70 DEG C, then takes out, naturally cools to room temperature；The roll after the completion of normalizing is put into glowing furnace again, 900 1000 DEG C is heated to and is incubated 35 hours, be subsequently placed into quenching oil and be cooled to 420 460 DEG C；Then the roll after the completion of quenching is put into tempering furnace and continues to be heated up to 640 660 DEG C, be incubated 56 hours；Roll after the completion of being most tempered at last takes out, it is placed under nitrogen blower fan mouth and carries out air-cooled processing, until after temperature is down to 500 520 DEG C, roll is put into cooling pond to be cooled down rapidly, is finally completed the Technology for Heating Processing of roll, through the above way, the present invention can efficiently control firing rate and cooling velocity of the roll in whole Technology for Heating Processing, hardness and intensity of the roll after Technology for Heating Processing greatly improved, comprehensive mechanical property is excellent, and product quality is high.
Description
Technical field
The present invention relates to a kind of Technology for Heating Processing, more particularly to a kind of Technology for Heating Processing for roll.
Background technology
Metal heat treatmet is to be placed on metal works in certain medium to be heated to suitable temperature, and is protected in this temperature
After holding certain time, and a kind of process cooled down with friction speed, and heat treatment be important process in machine-building it
One, its importance is especially prominent, at present during being heat-treated to roll, mostly only with Quenching Treatment, but this
Improvement of the kind handling process for the microscopic structure of material internal is limited, and is mainly manifested in the roll of prior heat treatment process
It is not had breakthrough in terms of hardness, intensity, it is more difficult to meet the needs of people increasingly improve.
The content of the invention
The present invention solves the technical problem of a kind of Technology for Heating Processing for roll is provided, can efficiently control
Firing rate and cooling velocity of the roll in whole Technology for Heating Processing, it is hard after Technology for Heating Processing to greatly improved roll
Degree and intensity, comprehensive mechanical property is excellent, and product quality is high.
In order to solve the above technical problems, one aspect of the present invention is：There is provided at a kind of heat for roll
Science and engineering skill, specifically comprises the following steps：
（1）, normalizing：Roll is put into normalizing furnace, 10-20 minutes are incubated after being heated to 50-70 DEG C, is then taken out, it is naturally cold
But to room temperature；
（2）, quenching：Roll after the completion of normalizing is put into glowing furnace, 900-1000 DEG C is heated to and is incubated 3-5 hours, with
After be put into quenching oil and be cooled to 420-460 DEG C；
（3）, tempering：Roll after the completion of quenching is put into tempering furnace and continues to be heated up to 640-660 DEG C, is incubated 5-6 hours；
（4）, cooling：Roll after the completion of tempering is taken out, is placed under nitrogen blower fan mouth and carries out air-cooled processing, until temperature is down to
After 500-520 DEG C, roll is put into cooling pond and cooled down rapidly, is finally completed the Technology for Heating Processing of roll.
In a preferred embodiment of the present invention, the oil temperature of the quenching oil is 60-80 DEG C.
In a preferred embodiment of the present invention, the wind-warm syndrome of the nitrogen is 50-60 DEG C.
In a preferred embodiment of the present invention, the water temperature of the cooling water is 20-40 DEG C.
The beneficial effects of the invention are as follows：A kind of Technology for Heating Processing for roll of the invention, pass sequentially through normalizing, quenching,
The heating of tempering, heat preserving mode, have efficiently controlled heating-up temperature of the roll in each stage, at the same using after normalizing air cooling,
Air-cooled and water cooling the type of cooling after oil cooling, tempering, has efficiently controlled cooling velocity of the roll in each stage, finally after quenching
Hardness and intensity of the roll after Technology for Heating Processing greatly improved, comprehensive mechanical property is excellent, and product quality is high.
Embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defined so as to be made to protection scope of the present invention.
Embodiment 1：
A kind of Technology for Heating Processing for roll, specifically comprise the following steps：
（1）, normalizing：Roll is put into normalizing furnace, 20 minutes are incubated after being heated to 50 DEG C, then takes out, naturally cools to room
Temperature；
（2）, quenching：Roll after the completion of normalizing is put into glowing furnace, 900 DEG C is heated to and is incubated 5 hours, be subsequently placed into and quench
420 DEG C are cooled in kerosene, the oil temperature of the quenching oil is 80 DEG C；
（3）, tempering：Roll after the completion of quenching is put into tempering furnace and continues to be heated up to 640 DEG C, is incubated 6 hours；
（4）, cooling：Roll after the completion of tempering is taken out, is placed under nitrogen blower fan mouth and carries out air-cooled processing, the wind of the nitrogen
Temperature is 50 DEG C, until after temperature is down to 520 DEG C, roll is put into cooling pond and cooled down rapidly, the water temperature of the cooling water
For 20 DEG C, the Technology for Heating Processing of roll is finally completed.
Embodiment 2：
A kind of Technology for Heating Processing for roll, specifically comprise the following steps：
（1）, normalizing：Roll is put into normalizing furnace, 10 minutes are incubated after being heated to 70 DEG C, then takes out, naturally cools to room
Temperature；
（2）, quenching：Roll after the completion of normalizing is put into glowing furnace, 1000 DEG C is heated to and is incubated 3 hours, be subsequently placed into
460 DEG C are cooled in quenching oil, the oil temperature of the quenching oil is 60 DEG C；
（3）, tempering：Roll after the completion of quenching is put into tempering furnace and continues to be heated up to 660 DEG C, is incubated 5 hours；
（4）, cooling：Roll after the completion of tempering is taken out, is placed under nitrogen blower fan mouth and carries out air-cooled processing, the wind of the nitrogen
Temperature is 60 DEG C, until after temperature is down to 500 DEG C, roll is put into cooling pond and cooled down rapidly, the water temperature of the cooling water
For 40 DEG C, the Technology for Heating Processing of roll is finally completed.
Embodiment 3：
A kind of Technology for Heating Processing for roll, specifically comprise the following steps：
（1）, normalizing：Roll is put into normalizing furnace, 15 minutes are incubated after being heated to 60 DEG C, then takes out, naturally cools to room
Temperature；
（2）, quenching：Roll after the completion of normalizing is put into glowing furnace, 950 DEG C is heated to and is incubated 4 hours, be subsequently placed into and quench
440 DEG C are cooled in kerosene, the oil temperature of the quenching oil is 70 DEG C；
（3）, tempering：Roll after the completion of quenching is put into tempering furnace and continues to be heated up to 650 DEG C, is incubated 5.5 hours；
（4）, cooling：Roll after the completion of tempering is taken out, is placed under nitrogen blower fan mouth and carries out air-cooled processing, the wind of the nitrogen
Temperature is 55 DEG C, until after temperature is down to 510 DEG C, roll is put into cooling pond and cooled down rapidly, the water temperature of the cooling water
For 30 DEG C, the Technology for Heating Processing of roll is finally completed.
Prior art is different from, a kind of Technology for Heating Processing for roll of the invention, passes sequentially through normalizing, quenching, tempering
Heating, heat preserving mode, efficiently controlled heating-up temperature of the roll in each stage, while using air cooling, quenching after normalizing
Air-cooled and water cooling the type of cooling after oil cooling, tempering afterwards, has efficiently controlled cooling velocity of the roll in each stage, finally significantly
Hardness and intensity of the roll after Technology for Heating Processing are improved, comprehensive mechanical property is excellent, and product quality is high.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, it is included within the scope of the present invention.
Claims (4)
1. a kind of Technology for Heating Processing for roll, it is characterised in that specifically comprise the following steps：
（1）, normalizing：Roll is put into normalizing furnace, 10-20 minutes are incubated after being heated to 50-70 DEG C, is then taken out, it is naturally cold
But to room temperature；
（2）, quenching：Roll after the completion of normalizing is put into glowing furnace, 900-1000 DEG C is heated to and is incubated 3-5 hours, with
After be put into quenching oil and be cooled to 420-460 DEG C；
（3）, tempering：Roll after the completion of quenching is put into tempering furnace and continues to be heated up to 640-660 DEG C, is incubated 5-6 hours；
（4）, cooling：Roll after the completion of tempering is taken out, is placed under nitrogen blower fan mouth and carries out air-cooled processing, until temperature is down to
After 500-520 DEG C, roll is put into cooling pond and cooled down rapidly, is finally completed the Technology for Heating Processing of roll.
2. the Technology for Heating Processing according to claim 1 for roll, it is characterised in that the oil temperature of the quenching oil is
60-80℃。
3. the Technology for Heating Processing according to claim 1 for roll, it is characterised in that the wind-warm syndrome of the nitrogen is 50-
60℃。
4. the Technology for Heating Processing according to claim 1 for roll, it is characterised in that the water temperature of the cooling water is
20-40℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710515042.2A CN107354284A (en) | 2017-06-29 | 2017-06-29 | A kind of Technology for Heating Processing for roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710515042.2A CN107354284A (en) | 2017-06-29 | 2017-06-29 | A kind of Technology for Heating Processing for roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107354284A true CN107354284A (en) | 2017-11-17 |
Family
ID=60274095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710515042.2A Pending CN107354284A (en) | 2017-06-29 | 2017-06-29 | A kind of Technology for Heating Processing for roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107354284A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788022A (en) * | 2018-06-01 | 2018-11-13 | 太仓市钧胜轧辊有限公司 | A kind of roller surface heat treatment process |
| CN110760665A (en) * | 2019-11-13 | 2020-02-07 | 永卓防务科技有限公司 | Production process of high-wear-resistance roller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602798A (en) * | 2013-12-02 | 2014-02-26 | 湖州市银鑫轧辊有限公司 | Method for heat treatment on high-hardness semi-steel roller |
| CN104357643A (en) * | 2014-11-06 | 2015-02-18 | 通裕重工股份有限公司 | Thermal treatment technology for eliminating meshed carbides after forging of roller |
| CN105385832A (en) * | 2015-12-24 | 2016-03-09 | 二重集团（德阳）重型装备股份有限公司 | Surface quenching and tempering combined heat processing technology for aluminum alloy rolling mill work roll |
-
2017
- 2017-06-29 CN CN201710515042.2A patent/CN107354284A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602798A (en) * | 2013-12-02 | 2014-02-26 | 湖州市银鑫轧辊有限公司 | Method for heat treatment on high-hardness semi-steel roller |
| CN104357643A (en) * | 2014-11-06 | 2015-02-18 | 通裕重工股份有限公司 | Thermal treatment technology for eliminating meshed carbides after forging of roller |
| CN105385832A (en) * | 2015-12-24 | 2016-03-09 | 二重集团（德阳）重型装备股份有限公司 | Surface quenching and tempering combined heat processing technology for aluminum alloy rolling mill work roll |
Non-Patent Citations (3)
| Title |
|---|
| 文铁铮等: "《冶金轧辊技术特性概论》", 31 January 1995 * |
| 杨林等: "《金属学与热处理》", 28 February 2015 * |
| 王会强等: "《工程材料与热加工基础》", 30 September 2010 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788022A (en) * | 2018-06-01 | 2018-11-13 | 太仓市钧胜轧辊有限公司 | A kind of roller surface heat treatment process |
| CN110760665A (en) * | 2019-11-13 | 2020-02-07 | 永卓防务科技有限公司 | Production process of high-wear-resistance roller |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |