CN106493518A - Steel alloy circle quenching roller production technology used by galvanized wire - Google Patents
Steel alloy circle quenching roller production technology used by galvanized wire Download PDFInfo
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- CN106493518A CN106493518A CN201610950961.8A CN201610950961A CN106493518A CN 106493518 A CN106493518 A CN 106493518A CN 201610950961 A CN201610950961 A CN 201610950961A CN 106493518 A CN106493518 A CN 106493518A
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Abstract
The invention discloses steel alloy circle quenching roller production technology used by a kind of galvanized wire, with following steps：A, blanking circle circle：B, welding processing：C, time circle are processed：D, to the quenching distortion portion Vehicle Processing at the roller two ends of quenching to before quenching size；E, Quenching Treatment：F, temper：G, forming.The present invention is made using 40Cr steel alloys, it is two times of this characteristics of common iron using alloy steel hardenability, improve the uniformity of quenching roller quenching hardness on a large scale, controlled by weld seam interlayer temperature during welding, effectively prevent, after selected welding material can fully meet quenching, hardness is consistent with mother metal, zero defect, solve major diameter, ultra-thin-wall quenching roller problem on deformation after heat treatment, be conducive to the quality of stable quenching roller, improve the service life of quenching roller, it is particularly well-suited under 250 DEG C of ambient temperature used by high-grade galvanization production line.
Description
Technical field
The present invention relates to the steel alloy circle quenching roller production technology used by a kind of galvanization production line.
Background technology
Quenching roller used by galvanization production line, was all import in the past, relatively costly, and thus domestic enterprise carries out technology and opens
Research is sent out, using welding quenching roller after 45 steel plate rings circle, but use under normal temperature environment as 45 steel can only be met, quench the straight of roller
Footpath is Φ 1500mm to the maximum, and galvanization production line top roller maximum gauge reaches Φ 2000mm, use environment temperature at 250 DEG C or so,
Therefore using the quenching roller of 45 steel, continuously there are quality problems, a most short use is scrapped, is difficult to for only 48 hours
Meet the modern high technology use requirement that makes rapid progress.
45# steel rings circle welding quenching roller, is only intended to normal temperature environment, diameter maximum Φ 1500mm, and top roller maximum gauge
For Φ 2000mm, in the top roller that company is shaken by the Japan of Baosteel import in 2014 three, continuously there are quality problems, a most short use is only
48h, in the case, trial-production task assigned by Baosteel, and proposes former 45# Steel materials and be changed to 40Cr steel alloys, because steel alloy is quenched
Permeability is that 45# steel is quenched deep 2 times, and such service life is improved, and cost reduces, stable through use quality, existing Baosteel big straight
Footpath top roller is my company's manufacture, the such as new line in the transformation project of Baosteel and Baosteel Zhanjiang.
Content of the invention
The technical problem to be solved in the present invention is：Overcome the deficiency in prior art, there is provided alloy used by a kind of galvanized wire
Steel circle quenching roller production technology, to improve the conforming product rate and service life of quenching roller, reduces cost meets modern high-new
The use requirement of technology.
The technical solution adopted for the present invention to solve the technical problems is：Steel alloy circle quenching roller used by a kind of galvanized wire
Production technology, with following steps：
A, blanking circle circle：According to technical requirements and consider quench shrinkage factor, calculate 40Cr steel plate blanking sizes, to 40Cr steel
Circle circle is carried out after plate heating；
B, welding processing：First the steel plate after circle circle is preheated, is then distinguished at the steel plate combination of inner and outside after circle circle
Welded, in its wlding used by China and foreign countries junction, the degree of main component is：C:0.45～0.55%, Si：0.40
～0.50%；Mn：0.85～0.95%；Cr：1.25～1.35%；Ni：0.045～0.060%, during welding between control weld layer
Temperature is 400 DEG C ± 2 DEG C；
C, time circle are processed：Quenching roller after to welding carries out back circle shaping, and quenching roller circularity is not more than 3mm；
D, the quenching distortion portion Vehicle Processing at the quenching roller two ends handled well by Hui Yuan are to the front size that quenches；
E, Quenching Treatment：To quenching, roller carries out Quenching Treatment；
F, temper：Quenching roller after to Quenching Treatment carries out temper；
G, forming：The quenching roller turnery processing good to temper is to satisfactory size.
Specifically, in above steps：
In described step a, 40Cr steel plates are heated 850 DEG C and is incubated after one hour, carry out circle circle.
In described step b, the steel plate weld after circle circle is preheated to 350 DEG C, during welding using electric heater unit, interior knot
At conjunction from the 10Mn2 welding wires of mother metal equality strength as wlding material, the hundred of main component in wlding used by outer junction
Divide and than content be：C:0.50%, Si：0.45%；Mn：0.90%；Cr：1.30%；Ni：0.05%, pass through electrical heating during welding
Device controls weld interpass temperature for 400 DEG C.
Further, described electric heater unit includes that the electric blanket for being separately positioned on weld seam both sides, electric blanket circuit connect
It is connected to the temperature controller that control electric blanket is turned on and off.
In described step c, return circle process be by welding after quenching roller enter heating furnace immediately, from welding when 350 DEG C
850 DEG C of insulations are heated to, and temperature retention time is incubated three minutes by every millimeter of steel plate and determines, circle process, Hui Yuan is carried out back after coming out of the stove
Quenching roller afterwards enters heating furnace again carries out 650 DEG C of tempering elimination stress, and insulation cools to 200 DEG C with the furnace after three hours and comes out of the stove.
In described step d, quenching roller both ends are processed respectively as the cone that length 300mm, taper are 1 °～3 °,
Described cone two ends are symmetrical and diameter is consistent.
In described step e, Quenching Treatment adopts mid frequency induction hardening mode, and hardening heat is 1020 DEG C, the movement of induction coil
Speed is 90mm/min, while water-spraying control.
Temper in described step f is to heat in the quenching roller entrance circulated air heating furnace that will have been quenched and be incubated
More than eight hours.
In described step g, the quenching roller body Vehicle Processing good to temper is to the size that meets the requirements.
The invention has the beneficial effects as follows：The present invention is made using 40Cr steel alloys, is ordinary steel using alloy steel hardenability
Two times of this characteristics of material, are improve the uniformity of quenching roller quenching hardness on a large scale, are controlled by weld seam interlayer temperature during welding,
Effectively prevent, selected welding material can fully meet hardness and mother after quenching
Material is consistent, zero defect, solves major diameter, ultra-thin-wall quenching roller problem on deformation after heat treatment, is conducive to stable quenching roller
Quality, improve the service life of quenching roller, be particularly well-suited under 250 DEG C of ambient temperature used by high-grade galvanization production line.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram behind the front Vehicle Processing quenching roller two ends quenching distortion portion of quenching.
Fig. 2 be quenching after obtain quenching roller schematic diagram.
The structural representation of electric heater unit used when Fig. 3 is Quenching Treatment in the present invention.
1. 3. temperature controller of quenching 2. electric blanket of roller, 4. weld seam in figure
Specific embodiment
Below by taking the 40Cr steel alloys circle quenching roller 1 of diameter of phi 2000 as an example, the invention will be further described.
Steel alloy circle quenching roller production technology used by a kind of galvanized wire, with following steps：
A, blanking circle circle：According to technical requirements and consider quench shrinkage factor, calculate 40Cr steel plate blanking sizes, to 40Cr steel
After plate is heated to 850 DEG C and is incubated one hour, circle circle is carried out.
B, welding processing：350 DEG C are preheated to using electric heater unit to the steel plate weld after circle circle first, then in circle circle
Welded at the steel plate combination of inner and outside afterwards respectively, welding adopts argon arc welding, interior junction to select and mother metal equality strength
Used as wlding material, in wlding used by outer junction, the degree of main component is 10Mn2 welding wires：C:0.50%, Si：
0.45%；Mn：0.90%；Cr：1.30%；Ni：0.05%, controlling weld interpass temperature by electric heater unit during welding is
400℃.
Specifically, as shown in figure 3, described electric heater unit includes being separately positioned on 1 cylinder weld seam of quenching roller, 4 both sides
Electric blanket 2, described 2 connection of electric blanket have the temperature controller 3 that control electric blanket 2 is turned on and off, and pass through temperature control during welding
Instrument 3 is acted on, and when weld interpass temperature reaches 400 DEG C, 2 power-off of electric blanket stops heating, when weld interpass temperature is once less than
When 400 DEG C, then 2 electrified regulation of electric blanket, so that it is guaranteed that 4 interlayer temperature of cylinder weld seam of quenching roller 1 is maintained at 400 DEG C, so as to
4 internal gas of weld seam are overflowed, is prevented from inside weld seam 4, producing pore, and is used argon arc welding reduce heat input, prevent element
Scaling loss.
C, time circle are processed：Quenching roller 1 after by welding enters heating furnace immediately, and 350 DEG C when welding are heated to 850 DEG C of guarantors
Temperature, this temperature both softener material, when increasing plasticity, play positive fire action again, be that follow-up quenching heat treatment is prepared, and being incubated
Between be then incubated three minutes by every millimeter of steel plate and determine, carrying out back circle after coming out of the stove and processing, the quenching roller 1 after Hui Yuan enters heating furnace again
Carry out 650 DEG C of tempering and eliminate stress, insulation cools to 200 DEG C with the furnace after three hours and comes out of the stove, it is ensured that quenching 1 circularity of roller is not more than
3mm.
Size before d, the quenching distortion portion Vehicle Processing extremely quenching at 1 two ends of quenching roller handled well by Hui Yuan, i.e., in quenching roller 1
Both ends are processed respectively as the cone that length 300mm, taper are 2 °, and described cone two ends are symmetrical and diameter one
Cause, as shown in Figure 1.
E, Quenching Treatment：To quenching, roller 1 carries out Quenching Treatment；Quenching Treatment adopts mid frequency induction hardening mode, and hardening heat is
1020 DEG C, the translational speed of induction coil is 90mm/min, while water-spraying control, as 1 diameter of roller that quenches is big, wall book, can not keep away
The deformation that exempts from, therefore cooling are controlled using inner core, cooling system are put in quenching 1 cylinder of roller before quenching and are quenched, and
Ensure that the magnitude of interference, quenching shrink and hold cooling system tightly on the premise of precalculated amount of contraction, it is ensured that circularity, reaching technology will
Ask, 1 shape of quenching roller obtained after quenching is as shown in Figure 2.
F, temper：The quenching roller 1 for having quenched is entered and in circulated air heating furnace, heats and be incubated more than eight hours.
G, forming：1 turnery processing of quenching roller good to temper is to satisfactory size.
Excircle dimension of the cylinder of above-mentioned quenching roller 1 before quenching is Φ 2023, and endoporus is Φ 1963, and cooling system is cylindrical
Size Φ 1943.5, the cylinder size of the roller 1 that quenches after quenching is Φ 2003.
The present invention is made using 40Cr steel alloys, is two times of this characteristics of common iron using alloy steel hardenability, is improved
The uniformity of quenching roller 1 quenching hardness on a large scale, by the control of weld seam 4 interlayer temperature during welding, effectively prevent weld seam 4
Internal generation pore and melting loss of elements, after selected welding material can fully meet quenching, hardness is consistent with mother metal, zero defect, solution
Determined major diameter, ultra-thin-wall quenching the problem on deformation after heat treatment of roller 1, be conducive to stable quenching roller 1 quality, improve quenching
The service life of roller 1, is particularly well-suited under 250 DEG C of ambient temperature used by high-grade galvanization production line.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and be carried out, can not be limited the scope of the invention with this, all according to the present invention
Equivalence changes or modification that spirit is made, should all cover within the scope of the present invention.
Claims (9)
1. steel alloy circle quenching roller production technology used by a kind of galvanized wire, is characterized in that：There are following steps：
A, blanking circle circle：According to technical requirements and consider quench shrinkage factor, calculate 40Cr steel plate blanking sizes, 40Cr steel plates are added
Circle circle is carried out after heat；
B, welding processing：First the steel plate after circle circle is preheated, is then carried out at the steel plate combination of inner and outside after circle circle respectively
Welding, in its wlding used by China and foreign countries junction, the degree of main component is：C:0.45～0.55%, Si：0.40～
0.50%；Mn：0.85～0.95%；Cr：1.25～1.35%；Ni：0.045～0.060%, temperature between control weld layer during welding
Spend for 400 DEG C ± 2 DEG C；
C, time circle are processed：Quenching roller after to welding carries out back circle shaping, and quenching roller circularity is not more than 3mm；
D, the quenching distortion portion Vehicle Processing at the quenching roller two ends handled well by Hui Yuan are to the front size that quenches；
E, Quenching Treatment：To quenching, roller carries out Quenching Treatment；
F, temper：Quenching roller after to Quenching Treatment carries out temper；
G, forming：The quenching roller turnery processing good to temper is to satisfactory size.
2. steel alloy circle quenching roller production technology used by galvanized wire according to claim 1, is characterized in that：Described step
In rapid a, 40Cr steel plates are heated 850 DEG C and is incubated after one hour, carry out circle circle.
3. steel alloy circle quenching roller production technology used by galvanized wire according to claim 1, is characterized in that：Described step
In rapid b, the steel plate weld after circle circle is preheated to 350 DEG C, during welding using electric heater unit, and interior junction is selected same with mother metal
Used as wlding material, in wlding used by outer junction, the degree of main component is equicohesive 10Mn2 welding wires：C:
0.50%, Si：0.45%；Mn：0.90%；Cr：1.30%；Ni：0.05%, weld layer is controlled by electric heater unit during welding
Between temperature be 400 DEG C.
4. steel alloy circle quenching roller production technology used by galvanized wire according to claim 3, is characterized in that：Described electricity
Heater includes that the electric blanket for being separately positioned on quenching roller body weld seam both sides, electric blanket connection have control electric blanket to open
The temperature controller for opening or closing.
5. steel alloy circle quenching roller production technology used by galvanized wire according to claim 1, is characterized in that：Described step
In rapid c, return circle and process be by welding after quenching roller enter heating furnace immediately, 350 DEG C when welding are heated to 850 DEG C of insulations,
Temperature retention time is incubated three minutes by every millimeter of steel plate and determines, carries out back circle and process after coming out of the stove, the quenching roller after Hui Yuan enter again plus
Hot stove carries out 650 DEG C of tempering and eliminates stress, and insulation cools to 200 DEG C with the furnace after three hours and comes out of the stove.
6. steel alloy circle quenching roller production technology used by galvanized wire according to claim 1, is characterized in that：Described step
In rapid d, quenching roller both ends are processed respectively as the cone that length 300mm, taper are 1 °～3 °, described cone two ends
Symmetrical and diameter is consistent.
7. steel alloy circle quenching roller production technology used by galvanized wire according to claim 1, is characterized in that：Described step
In rapid e, Quenching Treatment adopts mid frequency induction hardening mode, and hardening heat is 1020 DEG C, and the translational speed of induction coil is 90mm/min, with
When water-spraying control.
8. steel alloy circle quenching roller production technology used by galvanized wire according to claim 1, is characterized in that：Described step
Temper in rapid f is to heat in the quenching roller entrance circulated air heating furnace that will have been quenched and be incubated more than eight hours.
9. steel alloy circle quenching roller production technology used by galvanized wire according to claim 1, is characterized in that：Described step
In rapid g, the quenching roller body Vehicle Processing good to temper is to the size that meets the requirements.
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| CN201610950961.8A CN106493518B (en) | 2016-11-02 | 2016-11-02 | Steel alloy circle quenching roller production technology used in galvanized wire |
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| CN201610950961.8A CN106493518B (en) | 2016-11-02 | 2016-11-02 | Steel alloy circle quenching roller production technology used in galvanized wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480264A (en) * | 2019-08-16 | 2019-11-22 | 昆山新合宇制辊有限公司 | The cold and hot roller processing technology of slit type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480264A (en) * | 2019-08-16 | 2019-11-22 | 昆山新合宇制辊有限公司 | The cold and hot roller processing technology of slit type |
| CN110480264B (en) * | 2019-08-16 | 2021-04-30 | 昆山新合宇制辊有限公司 | Slotted cold and hot roller processing technology |
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| CN106493518B (en) | 2018-10-12 |
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Effective date of registration: 20190816 Address after: 213144 Yangzhuang Village, Zou District Town, Zhonglou District, Changzhou City, Jiangsu Province Patentee after: Changzhou Yexing Heavy Engineering Technology Co., Ltd. Address before: 213144 Jiangsu province Changzhou City Zhonglou District Zou Industrial Road No. 10 Patentee before: Changzhou Spring Heavy Industry Technology Co., Ltd. |