CN105798424B - A kind of roll overlaying prosthetic device and restorative procedure - Google Patents
A kind of roll overlaying prosthetic device and restorative procedure Download PDFInfo
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- CN105798424B CN105798424B CN201610371404.0A CN201610371404A CN105798424B CN 105798424 B CN105798424 B CN 105798424B CN 201610371404 A CN201610371404 A CN 201610371404A CN 105798424 B CN105798424 B CN 105798424B
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- roll
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- prosthetic device
- loading plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
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- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of roll overlaying prosthetic device and restorative procedure, including：Two bearing blocks and two groups of built-up welding components, two groups of built-up welding components include cross slide way, longitudinal rail and welding machine respectively, the first loading plate is respectively arranged with the cross slide way, the longitudinal rail is separately positioned on the first loading plate, the second loading plate is provided with the longitudinal rail, the welding machine is arranged on the second loading plate, and stay-warm case is provided between described two bearing blocks, and roll repair welding is carried out by the detection before built-up welding, the preheating before welding, welding, heat treatment and processing.Through the above way, roll overlaying prosthetic device and restorative procedure of the present invention, part manual operation instead of using built-up welding component, danger is reduced, and especially employs stay-warm case, neither influences the work of welding gun, and can reduces the loss of heat, reduce energy consumption, it is ensured that the technological temperature of roll overlaying, lift the quality of built-up welding.
Description
Technical field
The present invention relates to roll repair welding field, more particularly to a kind of roll overlaying prosthetic device and restorative procedure.
Background technology
Roll can produce normal wear and abnormal damage during use so that dimension of roller reduces and in table
Face shows irregular pit, if size reduction transfinites or pit is excessive, can not normal work, it is necessary to change roll
Or repair.
The replacement cost of roll is higher, and therefore, big more options are repaired.Traditional roll repair welding method is using artificial
The mode of built-up welding carries out the accumulation of wlding on the surface of roll, original size is subsequently processed into, due to the built-up welding temperature of roll
It is higher, and need to heat repeatedly during built-up welding, energy consumption is big, and labor intensity is big, the bad environments of high temperature, easily scald, work effect
Rate is low, and poor welding quality is, it is necessary to improve.
The content of the invention
The present invention solves the technical problem of a kind of roll overlaying prosthetic device and restorative procedure is provided, roll is lifted
The operating efficiency and security of Bead weld repair.
In order to solve the above technical problems, one aspect of the present invention is：A kind of roll overlaying reparation dress is provided
Put, including：Two bearing blocks and two groups of built-up welding components, described two bearing blocks are separately positioned on the both ends of roll, described two groups
Built-up welding component is separately positioned on the both sides of roll, and two groups of built-up welding components include cross slide way, longitudinal rail and welding machine respectively,
The first loading plate is respectively arranged with the cross slide way, the longitudinal rail is separately positioned on the first loading plate, described vertical
The second loading plate is provided with direction guiding rail, the welding machine is arranged on the second loading plate, and the welding machine includes a sensing roll
Welding gun, be provided with stay-warm case between described two bearing blocks.
In a preferred embodiment of the present invention, the cross slide way is parallel with the axis of roll, the cross slide way
It is perpendicular with longitudinal rail.
In a preferred embodiment of the present invention, the stay-warm case includes upper arcuate cover and lower curved cover, it is described on
It is connected between portion's arc-shaped cover and lower curved cover by lock, the upper arcuate cover is arranged on the top of roll, under described
Portion's arc-shaped cover is located at the lower section of roll, and there are fluting corresponding with welding-torch horizontal movement locus, institute in the both sides of the stay-warm case respectively
State in fluting and be provided with flexible steel plate protective cover, through hole corresponding with welding gun is provided with the flexible steel plate protective cover.
In a preferred embodiment of the present invention, first to be connected with the first loading plate is provided with the cross slide way
Screw rod thrust unit.
In a preferred embodiment of the present invention, second to be connected with the second loading plate is provided with the longitudinal rail
Screw rod thrust unit.
In a preferred embodiment of the present invention, the welding machine is CO2Gas shielded welding machine.
In a preferred embodiment of the present invention, the roll overlaying prosthetic device also includes a decelerator and speed governing electricity
Motivation, the output end of the decelerator are connected with one end of roll using positioning key, the input of the decelerator and speed governing
Motor is connected.
In a preferred embodiment of the present invention, assisted heating device, the auxiliary heating are provided with the stay-warm case
Device is electrical heating wire or ceramic heater, and heat insulating mattress is provided with the stay-warm case inwall.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of restorative procedure is provided, including
Following steps：
Detection before built-up welding：Old roll is detected a flaw, roll material 60CrNiMo, including surface coloring and ultrasound
Flaw detection, it is ensured that with the equal zero defect in surface inside roll, if old roll of detecting a flaw out has serious internal injury, do not allow to be somebody's turn to do again
The Bead weld repair work of roll；
Preheating before welding：Roll is put into electric furnace and preheated, it is desirable to 350 ~ 380 DEG C of preheating temperature, heating
Constant temperature is kept for 8 ~ 10 hours in stove；
Welding：Roll is taken out out of electric furnace, is placed on two bearing blocks, covers upper arcuate cover, start tune
Electric motor with speed carries out the rotation of roll, operates the first screw rod thrust unit and the second screw rod thrust unit so that two root bead rifles point
Both sides that Dui Zhun be in the middle part of roll simultaneously move built-up welding from middle part to different ends, in weld deposit process, often cover one cycle just
With contact type thermometric indicator in the middle part of roll and roll both ends of the surface carry out thermometric and clear up welding slag, ensure interlayer temperature 320 ~
It is reentered into the range of 350 DEG C, during less than 320 DEG C and the power of assisted heating device is heated or adjusted in electric furnace enters
Row heating；
Heat treatment：After welding, roll is immediately sent to be heat-treated in electric furnace, the burner hearth of electric furnace is not
Energy black furnace, initial temperature are put into after roll furnace temperature rising to 480 DEG C, be incubated 2.5 ~ 3 hours, and make in the range of 320 ~ 350 DEG C
Roller temperature homogenizes, stress-removal, slow cooling to room temperature, and annealing process requires cooling rate after 35 ~ 40 DEG C/h, roll cooling,
Detect as-welded hardness and macro-size and defect inspection；
Processing：Roughing is carried out to roll, then carries out the inspection of semifinished product, including penetrant inspection, hardness determination, geometric form
Shape and roughing dimension control, after qualified, then are finished.
In a preferred embodiment of the present invention, in the welding step, first with 1 ~ 2 layer of transition of transition zone welding wire built-up welding
Layer, each built-up welding thickness control are existed with the continuous built-up welding working lining of working lining welding wire, each built-up welding thickness control in 2.0mm afterwards
2.5 ~ 3.0mm, overall built-up welding thickness are 18 ~ 20mm, during, repeatedly the arcuate segments in weld deposit process are entered with the model of arc
Row detection, to ensure the control of built-up welding arc.
The beneficial effects of the invention are as follows：A kind of the roll overlaying prosthetic device and restorative procedure that the present invention points out, using heap
Weldering component instead of part manual operation, reduce danger, and especially employ stay-warm case, neither influence the work of welding gun
Make, and can reduces the loss of heat, reduces energy consumption, it is ensured that the technological temperature of roll overlaying, lift the quality of built-up welding, improve roll
The operating efficiency of Bead weld repair.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing, wherein：
Fig. 1 is a kind of roll overlaying prosthetic device of the present invention and the structural representation of the preferred embodiment of restorative procedure one.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only the part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
All other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Referring to Fig. 1, the embodiment of the present invention includes：
A kind of roll overlaying prosthetic device, including：Two bearing blocks 2 and two groups of built-up welding components 1, described two bearing blocks 2
The both ends of roll 5 are separately positioned on, two groups of built-up welding components 1 are separately positioned on the both sides of roll 5, two groups of built-up welding components
1 includes cross slide way 12, longitudinal rail 14 and welding machine 15 respectively, and the first loading plate is respectively arranged with the cross slide way 12
17, the longitudinal rail 14 is separately positioned on the first loading plate 17, and the second loading plate 18 is provided with the longitudinal rail 14,
The welding machine 15 is arranged on the second loading plate 18, and the welding machine 15 includes the welding gun 13 of a sensing roll 5, described two axles
Stay-warm case 4 is provided between bearing 2, reduces the loss of heat.
The cross slide way 12 is parallel with the axis of roll 5, and the cross slide way 12 and longitudinal rail 14 are perpendicular, institute
State the first screw rod thrust unit 11 for being provided with cross slide way 12 and being connected with the first loading plate 17, the first screw rod thrust unit
11 cause axial movement of the welding gun 13 along roll 5, and the to be connected with the second loading plate 18 is provided with the longitudinal rail 14
Two screw rod thrust units 16, the second screw rod thrust unit 16 cause the moving radially along roll 5 of welding gun 13, flexible adjustment, favorably
In Automated condtrol.
The stay-warm case 4 includes upper arcuate cover and lower curved cover, between the upper arcuate cover and lower curved cover
It is connected by lock, the upper arcuate cover is arranged on the top of roll 5, and the lower curved cover is located at the lower section of roll 5,
There is fluting corresponding with the horizontal movement track of welding gun 13 both sides of the stay-warm case 4 respectively, and flexible steel is provided with the fluting
Plate protective cover, it is provided with and 13 corresponding through hole of welding gun, axial movement of the welding gun 13 along roll 5 on the flexible steel plate protective cover
When, flexible steel plate protective cover telescopic moving therewith is promoted, neither influences the movement of welding gun 13, and can reduces the loss of heat.
The welding machine 15 is CO2Gas shielded welding machine, the effect of built-up welding are good.
The roll overlaying prosthetic device also includes a decelerator 3 and variable-speed motor 32, the output of the decelerator 3
End is connected with one end of roll 5 using positioning key 31, mounts and dismounts relatively convenient, the input and tune of the decelerator 3
Electric motor with speed 32 is connected so that the rotary speed of roll 5 is adjustable, the progress for being easy to built-up welding to work.
Assisted heating device is provided with the stay-warm case 4, the assisted heating device is that electrical heating wire or ceramics add
Hot device, auxiliary heating is carried out, lift surfacing quality, heat insulating mattress is provided with the inwall of stay-warm case 4, reduce thermal loss, drop
Low energy consumption.
A kind of restorative procedure, comprises the following steps：
Detection before built-up welding：Old roll 5 is detected a flaw, roll material 60CrNiMo, including surface colour and surpassed
Acoustic inspection, it is ensured that the inside of roll 5 and the equal zero defect in surface, if old roll of detecting a flaw out has serious internal injury, can to allow again
The Bead weld repair work of the row roll；
Preheating before welding：Roll 5 is put into electric furnace and preheated, it is desirable to 380 DEG C of preheating temperature, in heating furnace
Constant temperature is kept for 9 hours；
Welding：Roll 5 is taken out out of electric furnace, is placed on two bearing blocks 2, is covered upper arcuate cover, start
Variable-speed motor 32 carries out the rotation of roll 5, operates the first screw rod thrust unit 11 and the second screw rod thrust unit 16 so that two
Root bead rifle 13 is respectively aligned to the both sides at the middle part of roll 5 and built-up welding is moved from middle part to different ends, in weld deposit process, often covers
One cycle just carries out thermometric at the middle part of roll 5 and the both ends of the surface of roll 5 with contact type thermometric indicator and clears up welding slag, ensures interlayer
Temperature is reentered into electric furnace in the range of 320 ~ 350 DEG C, during less than 320 DEG C is heated or is adjusted auxiliary heating dress
The power put is heated；
Heat treatment：After welding, roll is immediately sent to be heat-treated in electric furnace, the burner hearth of electric furnace is not
Energy black furnace, initial temperature are put into after roll furnace temperature rising to 480 DEG C, be incubated 3 hours, and make roller temperature uniform at 330 DEG C
Change, stress-removal, slow cooling to room temperature, annealing process requires cooling rate in 40 DEG C/h, after roll cooling, detects as-welded hardness and grand
See size and defect inspection；
Processing：Roughing is carried out to roll, then carries out the inspection of semifinished product, including penetrant inspection, hardness determination, geometric form
Shape and roughing dimension control, after qualified, then are finished.
In the welding step, first with transition zone welding wire YD106-G 1 ~ 2 layer of transition zone of built-up welding, middle segmental arc can be with
Two layers of transition zone of built-up welding, as long as one layer of transition zone of the straight section built-up welding at both ends, each built-up welding thickness control is in 2.0mm, afterwards recruitment
Make the continuous built-up welding working linings of layer welding wire YD238-G, each built-up welding thickness control in 2.5 ~ 3.0mm, overall built-up welding thickness is 18 ~
20mm, during, repeatedly the arcuate segments in weld deposit process are detected with the model of arc, to ensure the control of built-up welding arc
System.
In summary, a kind of the roll overlaying prosthetic device and restorative procedure that the present invention points out, reduce manually, improve
Processing safety and operating efficiency, reduce thermal loss, reduce energy consumption and cost, improve the quality of roll overlaying.
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 (7)
1. a kind of roll overlaying prosthetic device, for the built-up welding of roll, including：Two bearing blocks and two groups of built-up welding components, it is described
Two bearing blocks are separately positioned on the both ends of roll, and two groups of built-up welding components are separately positioned on the both sides of roll, and its feature exists
In two groups of built-up welding components include cross slide way, longitudinal rail and welding machine respectively, and is respectively arranged with the cross slide way
One loading plate, the longitudinal rail are separately positioned on the first loading plate, and the second loading plate, institute are provided with the longitudinal rail
State welding machine to be arranged on the second loading plate, the welding machine includes the welding gun of a sensing roll, sets between described two bearing blocks
Be equipped with stay-warm case, the stay-warm case includes upper arcuate cover and lower curved cover, the upper arcuate cover and lower curved cover it
Between by lock be connected, the upper arcuate cover is arranged on the top of roll, and the lower curved cover is located at the lower section of roll,
There is fluting corresponding with welding-torch horizontal movement locus the both sides of the stay-warm case respectively, and being provided with flexible steel plate in the fluting prevents
Shield, through hole corresponding with welding gun is provided with the flexible steel plate protective cover, the welding machine is CO2Gas shielded welding machine, institute
State and assisted heating device is provided with stay-warm case, the assisted heating device is electrical heating wire or ceramic heater, the guarantor
Heat insulating mattress is provided with warm cover inwall.
2. roll overlaying prosthetic device according to claim 1, it is characterised in that the axis of the cross slide way and roll
Parallel, the cross slide way and longitudinal rail are perpendicular.
3. roll overlaying prosthetic device according to claim 1, it is characterised in that be provided with the cross slide way and the
The first screw rod thrust unit that one loading plate is connected.
4. roll overlaying prosthetic device according to claim 1, it is characterised in that be provided with the longitudinal rail and the
The second screw rod thrust unit that two loading plates are connected.
5. roll overlaying prosthetic device according to claim 1, it is characterised in that the roll overlaying prosthetic device also wraps
A decelerator and variable-speed motor are included, the output end of the decelerator is connected with one end of roll using positioning key, described
The input of decelerator is connected with variable-speed motor.
A kind of 6. restorative procedure carried out using any described roll overlaying prosthetic device of claim 1 ~ 5, it is characterised in that
Comprise the following steps：
Detection before built-up welding：Old roll is detected a flaw, roll material 60CrNiMo, including surface coloring and ultrasound are visited
Wound, it is ensured that inside roll and the equal zero defect in surface, if old roll of detecting a flaw out has serious internal injury, do not allow to carry out this again to roll
The Bead weld repair work of roller；
Preheating before welding：Roll is put into electric furnace and preheated, it is desirable to 350 ~ 380 DEG C of preheating temperature, in heating furnace
Constant temperature is kept for 8 ~ 10 hours；
Welding：Roll is taken out out of electric furnace, is placed on two bearing blocks, covers upper arcuate cover, starts speed governing electricity
Motivation carries out the rotation of roll, operates the first screw rod thrust unit and the second screw rod thrust unit so that two root bead rifles are right respectively
Both sides in the middle part of quasi- roll simultaneously move built-up welding from middle part to different ends, in weld deposit process, often cover one cycle just with connecing
Touch temperature measurer is in the middle part of roll and roll both ends of the surface carry out thermometric and clear up welding slag, ensures interlayer temperature at 320 ~ 350 DEG C
In the range of, it is reentered into during less than 320 DEG C and the power of assisted heating device is heated or adjusted in electric furnace is added
Heat；
Heat treatment：After welding, roll is immediately sent to be heat-treated in electric furnace, the burner hearth of electric furnace can not be cold
Stove, initial temperature are put into after roll furnace temperature rising to 480 DEG C, be incubated 2.5 ~ 3 hours, and make roll in the range of 320 ~ 350 DEG C
Equalizing temperature, stress-removal, slow cooling to room temperature, annealing process require cooling rate after 35 ~ 40 DEG C/h, roll cooling, detection
As-welded hardness and macro-size and defect inspection；
Processing：Roughing is carried out to roll, then carries out the inspection of semifinished product, including penetrant inspection, hardness determination, geometry and
Roughing dimension control, after qualified, then finished.
7. restorative procedure according to claim 6, it is characterised in that in the welding step, first with transition zone welding wire heap
1 ~ 2 layer of transition zone is welded, each built-up welding thickness control is in 2.0mm, afterwards with the continuous built-up welding working lining of working lining welding wire, each built-up welding
For thickness control in 2.5 ~ 3.0mm, overall built-up welding thickness is 18 ~ 20mm, during, repeatedly with the model of arc in weld deposit process
Arcuate segments detected, to ensure the control of built-up welding arc.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371404.0A CN105798424B (en) | 2016-05-31 | 2016-05-31 | A kind of roll overlaying prosthetic device and restorative procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371404.0A CN105798424B (en) | 2016-05-31 | 2016-05-31 | A kind of roll overlaying prosthetic device and restorative procedure |
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| CN105798424A CN105798424A (en) | 2016-07-27 |
| CN105798424B true CN105798424B (en) | 2018-01-09 |
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| CN107470743A (en) * | 2017-08-07 | 2017-12-15 | 豪利机械(苏州)有限公司 | The surface overlaying technique of deep-sea oil mechanical workpieces |
| CN107283020B (en) * | 2017-08-17 | 2019-12-03 | 江西银杉白水泥股份有限公司 | A kind of clinker breaker roll roll surface heating prosthetic device |
| CN107400768B (en) * | 2017-08-17 | 2019-04-16 | 惠州市光大水泥企业有限公司 | A kind of manufacture of cement pressure roller roll surface built-up welding flame pre-heating system |
| CN109877418B (en) * | 2019-01-29 | 2020-11-13 | 江苏省沙钢钢铁研究院有限公司 | Surfacing repair method for coiled side guide plate |
| CN112122742B (en) * | 2020-09-11 | 2021-06-08 | 桂林南方水泥有限公司 | Automatic repairing device for roll surface of cement roll squeezer |
| CN114192582B (en) * | 2021-12-06 | 2023-03-24 | 江苏锦航机械制造有限公司 | Roller cleaning device with crack repairing structure |
| CN114371220B (en) * | 2021-12-28 | 2024-04-02 | 唐山曹妃甸工业区长白机电设备检修有限公司 | Continuous casting roller system fatigue strength detection device and method |
| CN114260608A (en) * | 2022-01-13 | 2022-04-01 | 广东韶钢松山股份有限公司 | Welding device and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3050319T1 (en) * | 1980-02-29 | 1982-04-15 | Le I Korable Str | METHOD OF MANUFACTURING ARTICLES WITH SURFACING COATING AND ARTICLE MADE BY THIS METHOD |
| CN101003104A (en) * | 2006-09-22 | 2007-07-25 | 攀钢集团钢城企业总公司协力公司 | Built up welding technique of restoring roller for shape bar |
| CN200963723Y (en) * | 2006-10-25 | 2007-10-24 | 宝山钢铁股份有限公司 | Overlay welding machine |
| CN101618489B (en) * | 2009-07-24 | 2012-06-20 | 成都焊研威达自动焊接设备有限公司 | Surfacing welding machine applied to heavy binding roller or squeeze roller |
| CN202539847U (en) * | 2012-05-08 | 2012-11-21 | 郑州越达自动化焊接设备有限公司 | Special machine for overlaying roller and roller overlaying insulation cover |
| CN102744497A (en) * | 2012-07-19 | 2012-10-24 | 盐城市成功机械制造有限公司 | Repair method for press roll of roll press |
| CN104668722A (en) * | 2013-11-29 | 2015-06-03 | 成都焊研科技有限责任公司 | Special roll surfacing welding machine |
| CN204449711U (en) * | 2015-03-12 | 2015-07-08 | 河北华易重工机械有限公司 | Composite (back-up) roll preheating insulation stove |
| CN205733362U (en) * | 2016-05-31 | 2016-11-30 | 沙洲职业工学院 | A kind of roll overlaying prosthetic device |
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2016
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