CN104878380B - The laser remanufacturing and intensifying method of mine tram wheel pair - Google Patents
The laser remanufacturing and intensifying method of mine tram wheel pair Download PDFInfo
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- CN104878380B CN104878380B CN201510213639.2A CN201510213639A CN104878380B CN 104878380 B CN104878380 B CN 104878380B CN 201510213639 A CN201510213639 A CN 201510213639A CN 104878380 B CN104878380 B CN 104878380B
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Abstract
The present invention relates to a kind of laser remanufacturing of mine tram wheel pair and intensifying method, it is characterised in that：The intermediate buffer layer of cladding uses Co-based alloy powder, and its chemical component weight percentage is：Carbon 0.33 0.50%, silicon 0.32 3.8%, chromium 0.65 7.5%, iron 0.25 3.5%, boron 0.10 1.5%, vanadium 0.10 0.2%, remaining is nickel and inevitable impurity；The strengthening layer of cladding uses iron(-)base powder, and its chemical component weight percentage is：Carbon 0.10 1.5%, silicon 0.22 2.8%, chromium 4.5 6.0%, molybdenum 4.5 5.0%, boron 1.5 2.0%, manganese 3.0 3.5%, vanadium 2.0 2.5%, tungsten 6.5 7.5%, remaining is iron and inevitable impurity.So as to effectively extend the service life of mine tram wheel pair, reduce the replacement frequency of mine tram wheel pair.
Description
Technical field
The present invention relates to laser processing technology, the laser remanufacturing and intensifying method of particularly a kind of mine tram wheel pair.
Background technology
Mine tram wheel to be mining rail transport vehicle critical piece, long-term work is in high impact loads, alternate load and tide
Under wet and acid or alkali environment, by on-site inspection find mine tram wheel pair failure mode be mainly produce stress cracking, abrasion or
Corrosion causes failure.At present, mine tram wheel is general to service life in 3500-4000 kms, and such as some high-sulfur ore deposits are because of corrosion
Property material exist, its life-span is lower, and processing is scrapped substantially after use.Illustrated with Anshan iron and steel plant Dagushan Iron Ore Mine, mine tram wheel is to new product
Procurement price is 12000-13000 members/part, and service life is about 3500-4000 kilometers, only 1-2 month left sides of equivalent run time
It is right.And nearly 10 tons of mine car deadweight, in underground work, replacing mine tram wheel is quite cumbersome to program, time-consuming, laborious, adds mining
Cost.Therefore, it is directed to a kind of effective of mine tram wheel pair to remanufacture and intensifying method, is current problem urgently to be resolved hurrily.
At present, it is many on remanufacturing the patent and report of workpiece using laser melting and coating process, now it is exemplified below：
1st, CN102615431A discloses a kind of Remanufacturing method for automatic laser cladding of gray cast iron cylinder cover, and its feature exists
In：Step 1), prepare gray cast iron laser melting coating repair materials；Step 2), to the depth of " rhinoschisis " crackle on Gray Iron Cylinder Head
Do Non-Destructive Testing；Step 3), preprosthetic pretreatment is done to " rhinoschisis " position on Gray Iron Cylinder Head, in the pretreatment,
According to step 2) obtained crack depth testing result removes the crackle at " rhinoschisis " position, and a groove is formed, angle sand is then utilized
Until exposing fresh metal surface around wheel polishing groove, groove and its circumferential surface are cleaned with acetone soln；Step 4), pass through
Laser melting coating does profiling reparation to " rhinoschisis " position on the Gray Iron Cylinder Head；The step includes：Step 4.1), in the ash
Single track individual layer cladding is done at the groove on Cast Iron Cylinder Head；Step 4.2), at the groove on the Gray Iron Cylinder Head
Form intermediate buffer layer；Step 4.3), in step 4.2) on the basis of the intermediate buffer layer that is generated, do multilayer accumulation profiling and repair
It is multiple；Step 5), to repair position go de-stress.
2nd, CN 1932082 discloses one kind and prepares wear-resisting heat resistanceheat resistant composite cladding layer in crystallizer surface laser quick cladding
Technique, its feature is to utilize superpower laser, quickly scanned by laser copper plate of crystallizer surface cladding and matrix into
The good toughness bottoming transition zone of metallurgical binding, and wear-resisting and heat resistanceheat resistant is prepared in bottoming alloy surface by laser wide-band cladding
The cobalt-base alloys of function admirable.
3rd, CN101338427 discloses a kind of hydraulic support column cylinder, the laser of piston rod wear-resisting erosion resistance cladding layer melts
Coating process, it includes following technical process：Column cylinder barrel, piston rod surface pretreatment first；Then the selection of alloy powder
With the regulation of automatic powder feeding device：From the ferrous alloy good with good wear etch resistant properties and with the metallurgical compatibility of matrix
Fe, C, Cr, Ni, Mo, Si, N, Nb, Ta, B are mainly contained in powder, the composition of iron(-)base powder；Adjust automatic powder feeding device
When, the alloy powder that automatic powder feeding head comes out just is fallen in laser molten pool, adjust powder sending quantity, make alloy powder cladding layer
Thickness reaches 0.6-1.2mm.
4th, CN 103320787A disclose a kind of failure bar rolling guide and remanufacture restorative procedure, including：Step 1）、
Choose coating material；Step 2）, according to laser melting coating watt level, spot size, sweep speed and amount of lap, selection laser melts
Coating process parameter；Step 3）, using step 1）In selected coating material, according to step 2）Identified laser melting and coating process
Parameter, is repaired using laser melting coating re-manufacturing technology to the repair surface of bar roller guide and guard.
In summary, the workpiece based on laser melting and coating process remanufactures restorative procedure a lot, solves to a certain extent
The problem of service life of part workpiece is short, but verification is retrieved through the applicant, because workpiece self character is different, working environment
Different, the not equal reason of damage situations, is remanufactured and intensifying method there is presently no the laser melting coating suitable for mine tram wheel pair, this
It is also the problem of putting forth effort in the application to solve.
The content of the invention
The invention aims to provide a kind of extension mine tram wheel to service life, reduction mine tram wheel to replacement frequency
The laser remanufacturing and intensifying method of mine tram wheel pair.
The technical scheme is that：
The laser remanufacturing and intensifying method of a kind of mine tram wheel pair, including to impaired mine tram wheel to carrying out flaw detection measurement, root
According to result of detection remove damaged layer, using laser melting coating mode mine tram wheel on matrix cladding intermediate buffer layer carry out size it is extensive
Again, in intermediate buffer layer top cladding and hardening layer and sequent surface processing, it is characterised in that：
Co-based alloy powder is used during laser melting coating intermediate buffer layer, the powder chemistry composition by weight percent is：Carbon
0.33-0.50%, silicon 0.32-3.8%, chromium 0.65-7.5%, iron 0.25-3.5%, boron 0.10-1.5%, vanadium 0.10-0.2%, remaining is
Nickel and inevitable impurity, the mine tram wheel 1.8-2.2mm small compared with new product to outside dimension after recovery；
Iron(-)base powder is used during laser melting coating strengthening layer, the powder chemistry composition by weight percent is：Carbon 0.10-
1.5%th, silicon 0.22-2.8%, chromium 4.5-6.0%, molybdenum 4.5-5.0%, boron 1.5-2.0%, manganese 3.0-3.5%, vanadium 2.0-2.5%, tungsten
6.5-7.5%, remaining is iron and inevitable impurity, and the strengthening layer thickness is 2.5-3.0mm.
The laser remanufacturing and intensifying method of above-mentioned mine tram wheel pair, using multifunctional numerical control laser-processing system and gravity
Synchronous powder feeding system mode carries out cladding, under high power focused laser beam effect, in the middle of mine tram wheel is to matrix surface formation laser
Cushion, individual layer cladding thickness is 1.2-1.5mm, and technological parameter is as follows：Focus lamp f=300mm, 15*1 integration focus lamp, cladding
Power P=4000-4500W, spot size D=12*2, scan velocity V=400-600mm/min, overlapping rate is 35-40%.
The laser remanufacturing and intensifying method of above-mentioned mine tram wheel pair, using multifunctional numerical control laser-processing system and gravity
Preset automatic powder feeding system carries out cladding, under high power focused laser beam effect, in intermediate buffer layer surface cladding Laser Strengthening Layer,
Technological parameter is as follows：Focus lamp f=300mm, cladding power P=4200-4500W, spot size D=3mm, scan velocity V=850-
1050mm/min, overlapping rate is 45-55%.
The beneficial effects of the invention are as follows：
In the present invention, it is contemplated that wheel to original material ZG45, and cause wheel to dominant failure reason be impact cause
Fatigue crack and abrasion be collectively forming, if using single material cladding base material and cladding material difference of hardness can be caused excessive,
Cracking is easily caused under thump effect, and because No. 45 steel plasticity are poor, thermal coefficient of expansion strengthens powder with iron-based tungsten system
The hardened layer difference that end is formed is excessive, so taking nickel-base alloy intermediate buffer layer and iron-based tungsten system alloy in the present invention
The process program of strengthening layer, and the ratio of Si and B element is increased in the configuration of iron(-)base powder, it is good to be formed
Low-melting-point eutectic, you can well form metallurgical binding with primary substrate, again can with strengthening layer Ni-based tungsten system powder shape
Into stable eutectic structure, and it is poor to reduce the coefficient of expansion of strengthening layer and base material, while make use of the nickel-base alloy to be had
Preferable elasticity come absorb and buffer operation use during relatively thump, reduce fatigue crack formation, further plus
The strong service life of strengthening layer, improves the bond strength of strengthening layer, improve strengthening layer tungsten system alloy easily occur crackle,
The defect of cladding poor performance.
Mine tram wheel pair after reinforcing is remanufactured by alloy powder of the present invention and technique, impact during to operation
With good cushioning effect, and the alloy hardening layer of surface tungsten system has splendid wear resistance, and due to bottoming
The presence of cushion, effectively increases wheel to overall anti-fatigue performance, has prevented fatigue crack substantially and occurred causing what is scrapped
Situation occur so that be greatly improved wheel to service life.
Experiment proves the mine tram wheel after the patented method remediation intensification to improving about 1500-2000 compared with new product service life
Kilometer, can reach 5000-6000 kms, and can be repaired with repeated multiple times, and using effect is good.Saving enterprise's ore deposit
Mine tram wheel is also slow down while wheel is to purchase cost to replacement frequency, substantial amounts of man power and material is saved, with higher
Economic worth and practical value.
Embodiment
In view of mine tram wheel is usual to failure wear extent in more than 5mm, and with the presence of a large amount of stress crackings, fatigue crack, sheet
Invention is using nondestructiving inspecting equipment measurement fatigue layer thickness is first passed through, and then machine, which adds, removes fatigue layer, then in laser melting coating mode
Size restoration, the mine tram wheel 1.8- small compared with new product to outside dimension after recovery are carried out using the antifatigue primer of high tenacity
2.2mm；Then the thick wear and shock-resistant strengthening layers of cladding 2.5-3.0mm are carried out using laser melting coating mode, wherein, reserve 0.7-
0.8mm is as machining allowance, and cladding finishes rear machine plus resizing and finish, thus realize to mine tram wheel pair it is whole again
Manufacture and strengthening process.Now illustrated by two embodiments.
Embodiment 1
The laser remanufacturing and intensifying method of the mine tram wheel pair, specifically include following steps.
1st, flaw detection and early stage processing：
（1）Rusty stain of the mine tram wheel to surface, greasy dirt are removed, size, internal carrying out flaw detection is carried out；
（2）According to result of detection, surface fatigue layer turning is removed, local corrosion, lesion depths are met more than fatigue layer
Depth, determines to determine that Lathe quantity is 7mm in Lathe quantity, the present embodiment according to corroding or damaging depth capacity.
2nd, laser intermediate buffer layer cladding
(1) previous work
Cutting surface greasy dirt is removed, dimensional measurement is carried out, it is 14mm to determine external diameter damage amount；
(2) preparation of intermediate buffering layer material
Intermediate buffer layer selects Co-based alloy powder, and the powder chemistry composition by weight percent is：Carbon 0.44%, silicon 3.6%,
Chromium 7.2%, iron 3.0%, boron 1.3%, vanadium 0.2%, remaining is nickel and inevitable impurity, takes the 8Kg powder to be sieved through 100 mesh sieve
Afterwards in drying baker using 200 DEG C dry 2-3 hours it is standby；
(3) laser cladding method
Cladding is carried out using HGL-5000 type multifunctional numerical controls laser-processing system, powder feeding rate, individual layer cladding layer is adjusted
Thickness is 1.2mm, five layers of cladding, using gravity synchronous powder feeding system mode, under high power focused laser beam effect, in mine tram wheel pair
Matrix surface forms laser intermediate buffer layer, and specific process parameter is：Focus lamp f=300mm, 15*1 integration focus lamps, cladding
Power P=4100-4300W, spot size D=12*2, scan velocity V=450-470mm/min, overlapping rate 40%.
3rd, Laser Strengthening Layer cladding
(1) previous work
Ground off using angle except intermediate buffer layer surface scale；
(2) preparation of strengthening layer powder
Strengthening layer selects the wear-resisting powder of iron-based, and the powder chemistry composition by weight percent is carbon 1.2%, silicon 2.7%, chromium
5.5%th, molybdenum 4.8%, boron 1.8%, manganese 3.2%, vanadium 2.2%, tungsten 7.0%, remaining is iron and inevitable impurity.Before use, take
The 1.5Kg powder through 100 mesh sieve sieve after in drying baker using 200 DEG C dry 2-3 hours it is standby；
(3) laser cladding method
Cladding is carried out using HGL-5000 type multifunctional numerical controls laser-processing system, powder feeding rate is adjusted, makes individual layer cladding
Thickness degree is 1.5mm, and two layers of cladding is slow in centre under high power focused laser beam effect using the preset automatic powder feeding system of gravity
Layer surface cladding Laser Strengthening Layer is rushed, specific process parameter is：Focus lamp f=300mm, cladding power P=4200-4500W, light
Spot size D=3mm, scan velocity V=1050mm/min, overlapping rate 50%.
4th, subsequent treatment
Machine is carried out to reinforcing layer surface to add, and meets surface smoothness and size requirement.
Embodiment 2
The laser remanufacturing and intensifying method of the mine tram wheel pair, specifically include following steps.
1st, flaw detection and early stage processing
（1）Rusty stain of the mine tram wheel to surface, greasy dirt are removed, size, internal carrying out flaw detection is carried out；
（2）According to result of detection, Lathe quantity is set as 4, and (external diameter necessarily weares and teares before turning, so Lathe quantity is not equal to
External diameter loss amount) mm.
2nd, laser intermediate buffer layer cladding
(1) previous work
Cutting surface greasy dirt is removed, dimensional measurement is carried out, determines that external diameter loses 11mm；
(2) preparation of intermediate buffer layer powder
Intermediate buffer layer selects Co-based alloy powder, and the powder chemistry composition by weight percent is：Carbon 0.40%, silicon 3.5%,
Chromium 7.5%, iron 3.0%, boron 1.5%, vanadium 0.15%, remaining is nickel and inevitable impurity.Before use, the 6Kg powder is taken through 100
Mesh sieve sieve after in drying baker using 200 DEG C dry 2-3 hours it is standby；
(3) laser cladding method
Cladding is carried out using HGL-5000 type multifunctional numerical controls laser-processing system, powder feeding rate, individual layer cladding layer is adjusted
Thickness is 1.5mm, three layers of cladding, using gravity synchronous powder feeding system mode, under high power focused laser beam effect, in mine tram wheel pair
Matrix surface forms laser intermediate buffer layer, and specific process parameter is：Focus lamp f=300mm, 15*1 integration focus lamps, cladding
Power P=4000~4100W, spot size D=12*2, scan velocity V=500-520mm/min, overlapping rate 38%.
3rd, Laser Strengthening Layer cladding
(1) previous work
Ground off using angle except intermediate buffer layer surface scale；
(2) preparation of laser cladding powder
Strengthening layer selects iron(-)base powder, and the powder chemistry composition by weight percent is：Carbon 1.5%, silicon 2.3%, chromium
5.0%th, molybdenum 4.6%, boron 1.6%, manganese 3.5%, vanadium 2.4%, tungsten 7.5%, remaining is iron and inevitable impurity.Before use, take
The 1.5Kg powder through 100 mesh sieve sieve after in drying baker using 200 DEG C dry 2-3 hours it is standby；
(3) laser cladding method
Cladding is carried out using HGL-5000 type multifunctional numerical controls laser-processing system, powder feeding rate, individual layer cladding layer is adjusted
Thickness is 1.5mm, two layers of cladding, using the preset automatic powder feeding system of gravity, under high power focused laser beam effect, in intermediate buffering
Layer surface cladding Laser Strengthening Layer, specific process parameter is：Focus lamp f=300mm, cladding power P=4200-4500W, hot spot
Dimension D=3mm, scan velocity V=1050mm/min, overlapping rate 52%.
4th, subsequent treatment
Add to strengthening layer surface progress machine after laser melting coating, make any surface finish and ensure size requirement.
Claims (1)
1. the laser remanufacturing and intensifying method of a kind of mine tram wheel pair, including to impaired mine tram wheel to carrying out flaw detection measurement, basis
Result of detection remove damaged layer, using laser melting coating mode mine tram wheel on matrix cladding intermediate buffer layer carry out size it is extensive
Again, in intermediate buffer layer top cladding and hardening layer and sequent surface processing, it is characterised in that：
Co-based alloy powder is used during laser melting coating intermediate buffer layer, the powder chemistry composition by weight percent is：Carbon 0.33-
0.50%th, silicon 0.32-3.8%, chromium 0.65-7.5%, iron 0.25-3.5%, boron 0.10-1.5%, vanadium 0.10-0.2%, remaining be nickel and
Inevitable impurity, the mine tram wheel 1.8-2.2mm small compared with new product to outside dimension after recovery；
Iron(-)base powder is used during laser melting coating strengthening layer, the powder chemistry composition by weight percent is：Carbon 0.10-1.5%,
Silicon 0.22-2.8%, chromium 4.5-6.0%, molybdenum 4.5-5.0%, boron 1.5-2.0%, manganese 3.0-3.5%, vanadium 2.0-2.5%, tungsten 6.5-
7.5%, remaining is iron and inevitable impurity, and the strengthening layer thickness is 2.5-3.0mm, wherein reserved 0.7-0.8mm conducts
Machining allowance.
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| CN106553670A (en) * | 2015-09-25 | 2017-04-05 | 万盛精密钣金江苏有限公司 | Return the vehicle to the garage and knock off under Medical sealed conveying |
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| CN106553669A (en) * | 2015-09-25 | 2017-04-05 | 万盛精密钣金江苏有限公司 | Send down under a kind of Medical electric sealing and return the vehicle to the garage and knock off and its method for maintaining |
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| CN106553674A (en) * | 2015-09-25 | 2017-04-05 | 万盛精密钣金江苏有限公司 | Send down under a kind of Medical electric sealing and return the vehicle to the garage and knock off |
| CN107190258B (en) * | 2017-05-15 | 2019-04-16 | 葫芦岛科大耐磨材料研究院有限公司 | The method of customized type intelligent laser fast deposition reconstruction railway train wheel pair |
| CN108149243B (en) * | 2017-12-22 | 2021-01-12 | 中国人民解放军陆军装甲兵学院 | Method and device for repairing and remanufacturing cluster electrode through electric spark deposition |
| CN110184500B (en) * | 2019-07-03 | 2020-11-03 | 辽宁思达思克控股有限公司 | Powder and method for laser remanufacturing of junction surface of upper supporting plate and supporting ring of converter |
| CN110273155A (en) * | 2019-07-31 | 2019-09-24 | 天津玛斯特车身装备技术有限公司 | A kind of laser cladding reconstructing technique |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101181858A (en) * | 2006-11-14 | 2008-05-21 | 沈阳大陆激光技术有限公司 | Restored reinforcing wheel and restoring technique therefor |
| CN102677046A (en) * | 2012-05-25 | 2012-09-19 | 唐山瑞兆激光技术机械修复有限公司 | Alloy composite special for laser cladding of rolling mill housings |
| CN103290409A (en) * | 2013-07-03 | 2013-09-11 | 辽宁思达思克实业有限公司 | Manufacturing method of mixer blade |
| CN104357834A (en) * | 2014-10-17 | 2015-02-18 | 燕山大学 | Remanufacturing method for continuous casting roller |
| CN104480466A (en) * | 2015-01-04 | 2015-04-01 | 西南交通大学 | Railway vehicle axle repair process |
-
2015
- 2015-04-30 CN CN201510213639.2A patent/CN104878380B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101181858A (en) * | 2006-11-14 | 2008-05-21 | 沈阳大陆激光技术有限公司 | Restored reinforcing wheel and restoring technique therefor |
| CN102677046A (en) * | 2012-05-25 | 2012-09-19 | 唐山瑞兆激光技术机械修复有限公司 | Alloy composite special for laser cladding of rolling mill housings |
| CN103290409A (en) * | 2013-07-03 | 2013-09-11 | 辽宁思达思克实业有限公司 | Manufacturing method of mixer blade |
| CN104357834A (en) * | 2014-10-17 | 2015-02-18 | 燕山大学 | Remanufacturing method for continuous casting roller |
| CN104480466A (en) * | 2015-01-04 | 2015-04-01 | 西南交通大学 | Railway vehicle axle repair process |
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