CN107354284A - A kind of Technology for Heating Processing for roll - Google Patents

A kind of Technology for Heating Processing for roll Download PDF

Info

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
Application number
CN201710515042.2A
Other languages
Chinese (zh)
Inventor
王文其
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taicang Wins Roller Co Ltd
Original Assignee
Taicang Wins Roller Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taicang Wins Roller Co Ltd filed Critical Taicang Wins Roller Co Ltd
Priority to CN201710515042.2A priority Critical patent/CN107354284A/en
Publication of CN107354284A publication Critical patent/CN107354284A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • C21D1/28Normalising
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/38Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies

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

A kind of Technology for Heating Processing for roll
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℃。
CN201710515042.2A 2017-06-29 2017-06-29 A kind of Technology for Heating Processing for roll Pending CN107354284A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN107881303A (en) Steel annealing process
CN106929656A (en) A kind of hardening and tempering method of 34CrNiMo6 large forgings
CN107354284A (en) A kind of Technology for Heating Processing for roll
CN103436679A (en) Differential temperature heat treatment method of minor-diameter high chromium cast-iron roll
CN103898296A (en) Quenching process for heat treatment of high-chromium iron wear-resisting ball in water-based medium
CN104263885A (en) Heat treatment process for improving low-temperature toughness of castings
CN106011425A (en) Hardening and tempering treatment technique for low-alloy heat-resistant steel fasteners
CN107267718A (en) A kind of stainless steel work-piece Technology for Heating Processing
CN108796181A (en) One discharge plate member is heat-treated annealing process
CN103484609B (en) A kind of 45# steel quenching method
CN107587085A (en) A kind of quenching technical of high intensity hardware stamping part
CN202193804U (en) Heat-treatment tempering chamber
CN102965481A (en) Heat treatment method for reducing steel cold cracks
WO2018103088A1 (en) Bearing steel heat treatment process
CN106435106A (en) Bearing steel heat treatment technology
CN101787423B (en) Thermal processing method of Z12CN13 martensite stainless steel pressure spring forging
CN109182692A (en) A kind of heat treatment process of low-alloy casting
CN107267735A (en) A kind of annealing process for roll
CN107779559A (en) A kind of steel ball quenching technique
CN107177725A (en) A kind of modifier treatment technique for roll
CN106755764A (en) A kind of regulator cubicle cabinet processing method
CN103319081A (en) Tempering processing method for 8-12mm tempered glass
CN107523679A (en) Heated by electrodes heat treatment method
CN106636572A (en) Heat treatment process for metal part
CN103849736A (en) Heat treatment process of high-chromium cast iron

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20171117