CN104404510A - Method for restoring cold roll through preparing gradient coating via laser cladding - Google Patents
Method for restoring cold roll through preparing gradient coating via laser cladding Download PDFInfo
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- 239000011248 coating agent Substances 0.000 title claims abstract description 35
- 238000000576 coating method Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004372 laser cladding Methods 0.000 title abstract 4
- 239000000843 powder Substances 0.000 claims abstract description 44
- 230000007704 transition Effects 0.000 claims abstract description 40
- 238000005253 cladding Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 26
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 21
- 239000000956 alloy Substances 0.000 claims abstract description 21
- 238000005219 brazing Methods 0.000 claims abstract description 11
- 230000004907 flux Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000005488 sandblasting Methods 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims description 32
- 230000008018 melting Effects 0.000 claims description 32
- 238000005097 cold rolling Methods 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 229910000679 solder Inorganic materials 0.000 claims description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- RHDUVDHGVHBHCL-UHFFFAOYSA-N niobium tantalum Chemical compound [Nb].[Ta] RHDUVDHGVHBHCL-UHFFFAOYSA-N 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910001362 Ta alloys Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 41
- 229910000831 Steel Inorganic materials 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 6
- 238000003892 spreading Methods 0.000 description 6
- 230000007480 spreading Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 235000013312 flour Nutrition 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a method for restoring a cold roll through preparing a gradient coating via laser cladding. The method comprises the following steps: 1) carrying out polishing, cleaning and sand blasting on the to-be-restored area of the cold roll; 2) paving a brazing flux on the surface of the to-be-restored area of the cold roll, paving brazing filler metal powder on the brazing flux and preparing a first transition layer through a high-temperature heating manner; 3) pacing transition material powder on the surface of the first transition layer and preparing a second transition layer through laser cladding; 4) paving alloy powder on the surface of the second transition layer and preparing a third gradient layer through laser cladding. The method starts with the structural design of a cladding layer, and the cladding layer is designed into an alloy gradient layer with a multilayer structure, so that the problem that the cold roll is easy to crack, relatively low in bonding strength and easy to fall off after the restoration is solved.
Description
Technical field
The present invention relates to cold roll recovery technique field, be specifically related to a kind of utilize laser melting coating to prepare method that gradient cladding carrys out repairing cold rolling roller.
Background technology
Cold roll is key part and the consumable part of cold-rolling mill, in the operation of rolling, working stress is very big, be subject to being mingled with of rolled piece simultaneously, the impact of the problem such as limit is split, easily cause roller surface scuffing, crackle, roll banding, peel off and even scrap, therefore require that cold roll surface possesses quite high hardness, obdurability and splitting resistance.Cold roll usually adopts steel alloy to forge and passes through complicated thermal treatment process and manufactures, and production cost is very expensive.Related data is added up, and Chinese large-sized iron and steel enterprise cold roll wastage rate are about 0.8-1.1 kg/ton, rough estimation annual cold roll consumption more than 500,000 tons.If the roll consumed all is scrapped, virtually increase the production cost of iron and steel enterprise, also can bring the huge wasting of resources simultaneously.
At present, the method that cold roll reparation adopts is built-up welding, laser melting coating etc.The material majority of cold roll is high-carbon low-alloy die steel, hardness is higher, built-up welding only can be applicable to not require crackle, hardness, impact toughness or less demanding cold roll reparation, for the cold roll of hardness more than more than HRC55, very easily cracks in weld deposit process.Domestic also do not have the matured product can applying Bead weld repair cold roll to come out.Disclosed in No. 96102348.1, Chinese Patent Application No. and No. 6102347.3, Chinese Patent Application No., processing method all fails to obtain successfully on the cold roll reparation of Wuhan Iron and Steel Plant group and Tangshan Song Ting Iron And Steel Co., Ltd is on probation.
When laser melting coating is applied to repairing cold rolling roller, because LASER HEATING cools soon soon, the zone of transition of generation is undersized, causes this regional stress to concentrate, when base material differs larger with cladding layer mechanical property, is inclined to more serious.Meanwhile, cold roll Facing material carbon content is very high, and make base material and cladding layer produce crisp phase, bonding strength is lower, easily obscission occurs.
Summary of the invention
For overcoming the deficiencies in the prior art, the present invention, by carrying out appropriate design to the material of laser melting coating transition layer and thickness, provides one to utilize laser melting coating to prepare gradient cladding, thus the method for repairing cold rolling roller.The technical scheme that processing method of the present invention is taked is:
Laser melting coating prepares a method for gradient cladding repairing cold rolling roller, comprises the following steps;
1) polished in the district to be repaired of cold roll, clean and sandblasting;
2) through step 1) the laid brazing flux in surface, cold roll district to be repaired that processes, then by laid for solder powder on brazing flux, prepare First Transition layer finally by heat mode;
3) by laid for transition material powder surperficial at First Transition layer, the second transition layer is prepared by laser melting coating operation;
4) by laid for powdered alloy surperficial at the second transition layer, the 3rd gradient layer is prepared by laser melting coating operation.
Further, described step 2) in heat mode be high-frequency induction heating.
Further, described step 3) in laser melting coating operation at least repeat 1 time, described step 4) in laser melting coating operation at least repeat 2 times.
Further, described step 2) in solder powder comprise gold, manganese, nickel, zinc, chromium; Corresponding mass percentage is respectively: 50 ~ 60%, 10 ~ 15%, 8 ~ 15%, 20 ~ 30%, 1 ~ 5%.
Further, described step 3) in transition material powder comprise nickel, chromium, molybdenum, iron, niobium-tantalum alloy, manganese, silicon, copper, titanium, aluminium; Corresponding mass percentage is respectively: 52 ~ 65%, 15 ~ 25%, 8 ~ 18%, 3 ~ 10%, 4 ~ 8%, 0.2 ~ 2.0%, 0.5 ~ 2.0%, 0.5 ~ 2.0%, 0.5 ~ 2.0%, 0.5 ~ 2.0%.
Further, described step 4) interalloy powder comprises iron, chromium, nickel, molybdenum, niobium-tantalum alloy, silicon, Boron, cobalt, manganese, vanadium; Corresponding mass percentage is respectively: 65 ~ 80%, 10 ~ 20%, 1 ~ 5%, 1 ~ 5%, 0.2 ~ 2.0%, 1 ~ 5%, 0.2 ~ 2.0%, 0.2 ~ 2.0%, 0.2 ~ 5%, 0.2 ~ 2.0%.
Further, described step 2) in solder powder, described step 3) in transition material powder and described step 4) in powdered alloy also need before use through ball mill mixing and mixing post-drying step.
Further, described step 2) in solder powder be 30 ~ 120min through ball mill mixing time; Described step 3) in transition material powder and powdered alloy in described step 4 be 90 ~ 150min through ball mill mixing time.
Further, described step 2) in solder powder, described step 3) in transition material powder and described step 4) in the drying time of powdered alloy be 50 ~ 120min, bake out temperature is 80 ~ 120 DEG C.
Further, described step 2) in brazing flux and the laid total thickness of solder powder be 0.2 ~ 0.4mm; Described step 3) in the laid thickness of transition material powder be 0.2 ~ 0.5mm; Described step 4) in the laid thickness of powdered alloy be 0.3 ~ 0.8mm.
The invention provides a kind of method that laser melting coating prepares gradient cladding repairing cold rolling roller, start with from the structure design of cladding layer, cladding layer is designed to a kind of alloy gradient layer with multilayered structure, solves that cold roll reparation easily cracks afterwards, bonding strength is lower, the easy problem such as to come off.This processing method has the following advantages:
(1) metallurgical binding between passing through layer by layer, achieves bonding strength high between cladding layer and cold roll body material, can effectively relax the thermal stresses produced in cladding process, promote the toughness of cladding layer;
(2) microstructure of surface cladding layer densification, flawless defect, have high comprehensive mechanical performance, reach the performance level of standardized component;
(3) this invention is while minimizing reparing process, significantly can reduce production cost, flexible and convenient operation, according to the performance requriements of cold roll and can repair the design that size carries out cladding layer configuration aspects, meet the reparation demand of different part.
Accompanying drawing explanation
Fig. 1 is the cold roll structural representation after utilizing processing method of the present invention to repair;
Fig. 2 is the district to be repaired on cold rolling band steel roller surface in the embodiment of the present invention 1;
Fig. 3 is the pictorial diagram in the embodiment of the present invention 1 after cold rolling band steel roller surface reconditioning;
Fig. 4 is the district to be repaired of wire rod roller surface in the embodiment of the present invention 2;
Fig. 5 is the pictorial diagram in the embodiment of the present invention 2 after the reparation of wire rod roller surface.
In figure, 1-base material; 2-First Transition layer; 3-the second transition layer; 4-the three gradient layer.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, technical solution of the present invention is described further.
Case study on implementation 1: cold rolling band steel roller surface reconditioning
The material of this roll is Cr12MoV alloy, and this alloy grain is comparatively thin, and have good hardening capacity, the hardness after Q-tempering, intensity, toughness are higher, and quenching strain is little, are widely used in the manufacture of cold roll.Poor by traditional weld deposit repairing effect, be less than 10 hours work-ing life.
The technology of the present invention is implemented on this field, carry out laser melting coating reparation to this roll, implementing process is as follows:
(1) grinding process is carried out to cold rolling band steel roller district to be repaired, the then further alligatoring of sandblasting, purification matrix surface;
(2) prepare the first layer solder powder, adopt simple bronze, manganese powder, nickel powder, zinc powder, chromium powder, 55.0:12.0:8.0:24.0:1.0 mixes in mass ratio, mixes 50 minutes through ball mill, dries 1 hour at 100 DEG C;
(3) second layer transition material powder is prepared, adopt simple nickel powder, chromium powder, molybdenum powder, iron powder, niobium-tantalum powder, manganese powder, silica flour, copper powder, titanium valve, aluminium powder, 56.4:20.3:10.0:5.2:5.0:0.4:0.6:0.5:0.8:0.8 mixes in mass ratio, mix 120 minutes through ball mill, dry 1 hour at 100 DEG C;
(4) third layer powdered alloy is prepared, adopt simple iron powder, chromium powder, nickel powder, molybdenum powder, niobium-tantalum powder, silica flour, Boron powder, cobalt powder, manganese powder, vanadium powder, 76.4:15.0:2.0:2.0:0.5:2.0:0.4:0.4:1.0:0.3 mixes in mass ratio, mix 120 minutes through ball mill, dry 1 hour at 100 DEG C;
(5) at pasty state 102 brazing flux that substrate surface layer overlay had boiled, thickness is 100 μm, and then by the first layer solder powder uniform spreading, thickness is 200 μm, adopts high-frequency induction heating to 1080 DEG C, is incubated 2 minutes.
(6) by second layer transition material powder uniform spreading on the first layer transition layer, thickness is 0.3mm, adopts superpower continuous YAG laser as energy source, laser power is 2000W, operation light spot diameter is 5mm, and sweep velocity is 0.6m/min, carries out laser melting coating.This processing step repeats 2 times.
(7) by third layer powdered alloy uniform spreading on transition layer 2, thickness is 0.5mm, and adopt superpower continuous YAG laser as energy source, laser power is 2500W, and operation light spot diameter is 5mm, and sweep velocity is 0.6m/min, carries out laser melting coating.This processing step repeats 3 times.
Through the gradient cladding layer that above-mentioned technique obtains, be metallurgical binding between each transition interface, flawless, performance testing index all meets the requirements.
Embodiment 2: the preparation of wire roll surface fused coating
The material of this roll is H13 alloy, and this steel has high hardening capacity and thermal crack resistant ability, and wear resistance is good, and toughness weakens relatively to some extent, has good thermotolerance, has excellent comprehensive mechanical property and higher anti-temper resistance when comparatively high temps.Can be used in the manufacture of cold roll, after weld deposit repairing, the life-span only has 3 ~ 5 hours.Utilize the technology of the present invention to carry out laser melting coating reparation to this roll, implementing process is as follows:
(1) grinding process is carried out to wire roll district to be repaired, the then further alligatoring of sandblasting, purification matrix surface;
(2) prepare the first layer solder powder, adopt simple bronze, manganese powder, nickel powder, zinc powder, chromium powder, 55.0:12.0:8.0:24.0:1.0 mixes in mass ratio, mixes 50 minutes through ball mill, dries 1 hour at 100 DEG C;
(3) second layer transition material powder is prepared, adopt simple nickel powder, chromium powder, molybdenum powder, iron powder, niobium-tantalum powder, manganese powder, silica flour, copper powder, titanium valve, aluminium powder, 56.4:20.3:10.0:5.2:5.0:0.4:0.6:0.5:0.8:0.8 mixes in mass ratio, mix 120 minutes through ball mill, dry 1 hour at 100 DEG C;
(4) third layer powdered alloy is prepared, adopt simple iron powder, chromium powder, nickel powder, molybdenum powder, niobium-tantalum powder, silica flour, Boron powder, cobalt powder, manganese powder, vanadium powder, 76.4:15.0:2.0:2.0:0.5:2.0:0.4:0.4:1.0:0.3 mixes in mass ratio, mix 120 minutes through ball mill, dry 1 hour at 100 DEG C;
(5) at pasty state 102 brazing flux that substrate surface layer overlay had boiled, thickness is 100 μm, and then by the first layer transition layer solder powder uniform spreading, thickness is 200 μm, adopts high-frequency induction heating to 1080 DEG C, is incubated 2 minutes.
(6) by second layer transition material powder uniform spreading on the first layer transition layer, thickness is 0.3mm, adopts superpower continuous YAG laser as energy source, laser power is 2000W, operation light spot diameter is 5mm, and sweep velocity is 0.6m/min, carries out laser melting coating.This processing step repeats 2 times.
(7) by the 3rd gradient layer high performance alloys powder uniform spreading on transition layer 2, thickness is 0.5mm, adopts superpower continuous YAG laser as energy source, laser power is 2500W, operation light spot diameter is 5mm, and sweep velocity is 0.6m/min, carries out laser melting coating.This processing step repeats 3 times.
Through the gradient cladding layer that above-mentioned technique obtains, be metallurgical binding between each transition interface, flawless, performance testing index all meets the requirements.
Should be understood that above-described embodiment only for technical conceive of the present invention and feature are described, its object is to understand content of the present invention for those skilled in the art and implement according to this, not embodiment is exhaustive, can not limit the scope of the invention with this.All technical schemes according to the present invention are modified or equivalent replacement, and do not depart from aim and the scope of technical solution of the present invention, and it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. laser melting coating prepares a method for gradient cladding repairing cold rolling roller, comprises the following steps:
1) polished in the district to be repaired of cold roll, clean and sandblasting;
2) through step 1) the laid brazing flux in surface, cold roll district to be repaired that processes, then by laid for solder powder on brazing flux, prepare First Transition layer finally by heat mode;
3) by laid for transition material powder surperficial at First Transition layer, the second transition layer is prepared by laser melting coating operation;
4) by laid for powdered alloy surperficial at the second transition layer, the 3rd gradient layer is prepared by laser melting coating operation.
2. laser melting coating according to claim 1 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 2) in heat mode be high-frequency induction heating.
3. laser melting coating according to claim 1 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 3) in laser melting coating operation at least repeat 1 time, described step 4) in laser melting coating operation at least repeat 2 times.
4. laser melting coating according to claim 1 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 2) in solder powder comprise gold, manganese, nickel, zinc, chromium; Corresponding mass percentage is respectively: 50 ~ 60%, 10 ~ 15%, 8 ~ 15%, 20 ~ 30%, 1 ~ 5%.
5. laser melting coating according to claim 1 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 3) in transition material powder comprise nickel, chromium, molybdenum, iron, niobium-tantalum alloy, manganese, silicon, copper, titanium, aluminium; Corresponding mass percentage is respectively: 52 ~ 65%, 15 ~ 25%, 8 ~ 18%, 3 ~ 10%, 4 ~ 8%, 0.2 ~ 2.0%, 0.5 ~ 2.0%, 0.5 ~ 2.0%, 0.5 ~ 2.0%, 0.5 ~ 2.0%.
6. laser melting coating according to claim 1 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 4) interalloy powder comprises iron, chromium, nickel, molybdenum, niobium-tantalum alloy, silicon, Boron, cobalt, manganese, vanadium; Corresponding mass percentage is respectively: 65 ~ 80%, 10 ~ 20%, 1 ~ 5%, 1 ~ 5%, 0.2 ~ 2.0%, 1 ~ 5%, 0.2 ~ 2.0%, 0.2 ~ 2.0%, 0.2 ~ 5%, 0.2 ~ 2.0%.
7. laser melting coating according to claim 1 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 2) in solder powder, described step 3) in transition material powder and described step 4) in powdered alloy also need before use through ball mill mixing and mixing post-drying step.
8. laser melting coating according to claim 7 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 2) in solder powder be 30 ~ 120min through ball mill mixing time; Described step 3) in transition material powder and powdered alloy in described step 4 be 90 ~ 150min through ball mill mixing time.
9. laser melting coating according to claim 7 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 2) in solder powder, described step 3) in transition material powder and described step 4) in the drying time of powdered alloy be 50 ~ 120min, bake out temperature is 80 ~ 120 DEG C.
10. laser melting coating according to claim 1 prepares the method for gradient cladding repairing cold rolling roller, it is characterized in that, described step 2) in brazing flux and the laid total thickness of solder powder be 0.2 ~ 0.4mm; Described step 3) in the laid thickness of transition material powder be 0.2 ~ 0.5mm; Described step 4) in the laid thickness of powdered alloy be 0.3 ~ 0.8mm.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154872A (en) * | 2015-09-06 | 2015-12-16 | 中国航空工业集团公司北京航空材料研究院 | Laser manufacturing method for preparing Ni base alloy gradient materials on titanium alloy |
| CN106086877A (en) * | 2016-08-05 | 2016-11-09 | 西安宇丰喷涂技术有限公司 | A kind of based on the laser cladding coating surface reinforcing method improving titanium alloy surface fusing point |
| CN106637198A (en) * | 2016-12-26 | 2017-05-10 | 江苏亚威创科源激光装备有限公司 | Manufacturing method for mould based on laser additive manufacturing and provided with gradient wear-resisting coating |
| CN106825584A (en) * | 2017-03-06 | 2017-06-13 | 唐山市兆寰冶金装备制造有限公司 | High manganese steel frog intelligent laser is combined reconstruction method |
| CN109778181A (en) * | 2019-03-08 | 2019-05-21 | 中国长江电力股份有限公司 | Substitute the material and construction technology of the operating oil line chromium plating of power station oil head |
| CN110039253A (en) * | 2019-04-18 | 2019-07-23 | 大唐东北电力试验研究院有限公司 | A kind of middling speed roller surface restorative procedure preventing penetrating crack |
| CN110303154A (en) * | 2019-06-13 | 2019-10-08 | 北京工业大学 | The preparation of gradient solder layer and integrated soldering processes based on laser melting deposition increases material manufacturing technology |
| CN110468406A (en) * | 2019-09-02 | 2019-11-19 | 中机智能装备创新研究院(宁波)有限公司 | Wear-resistant coating and preparation method thereof, the cutter ring of shield hobboing cutter, shield hobboing cutter and shield machine |
| CN114310148A (en) * | 2021-09-30 | 2022-04-12 | 内蒙古联晟新能源材料有限公司 | Method for repairing surface quality of working roller |
| CN114770028A (en) * | 2022-06-01 | 2022-07-22 | 新兴铸管阜康能源有限公司 | Remanufacturing method of pipe mold based on submerged arc welding and laser cladding |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154872A (en) * | 2015-09-06 | 2015-12-16 | 中国航空工业集团公司北京航空材料研究院 | Laser manufacturing method for preparing Ni base alloy gradient materials on titanium alloy |
| CN105154872B (en) * | 2015-09-06 | 2017-11-21 | 中国航空工业集团公司北京航空材料研究院 | A kind of laser manufacturing process that Ni based alloy functionally gradient material (FGM)s are prepared on titanium alloy |
| CN106086877A (en) * | 2016-08-05 | 2016-11-09 | 西安宇丰喷涂技术有限公司 | A kind of based on the laser cladding coating surface reinforcing method improving titanium alloy surface fusing point |
| CN106637198A (en) * | 2016-12-26 | 2017-05-10 | 江苏亚威创科源激光装备有限公司 | Manufacturing method for mould based on laser additive manufacturing and provided with gradient wear-resisting coating |
| CN106825584A (en) * | 2017-03-06 | 2017-06-13 | 唐山市兆寰冶金装备制造有限公司 | High manganese steel frog intelligent laser is combined reconstruction method |
| CN106825584B (en) * | 2017-03-06 | 2017-11-10 | 唐山市兆寰冶金装备制造有限公司 | The compound reconstruction method of high manganese steel frog intelligent laser |
| CN109778181A (en) * | 2019-03-08 | 2019-05-21 | 中国长江电力股份有限公司 | Substitute the material and construction technology of the operating oil line chromium plating of power station oil head |
| CN110039253A (en) * | 2019-04-18 | 2019-07-23 | 大唐东北电力试验研究院有限公司 | A kind of middling speed roller surface restorative procedure preventing penetrating crack |
| CN110303154A (en) * | 2019-06-13 | 2019-10-08 | 北京工业大学 | The preparation of gradient solder layer and integrated soldering processes based on laser melting deposition increases material manufacturing technology |
| CN110303154B (en) * | 2019-06-13 | 2021-07-30 | 北京工业大学 | Gradient brazing filler metal layer preparation and integrated brazing process based on laser fused deposition additive manufacturing technology |
| CN110468406A (en) * | 2019-09-02 | 2019-11-19 | 中机智能装备创新研究院(宁波)有限公司 | Wear-resistant coating and preparation method thereof, the cutter ring of shield hobboing cutter, shield hobboing cutter and shield machine |
| CN114310148A (en) * | 2021-09-30 | 2022-04-12 | 内蒙古联晟新能源材料有限公司 | Method for repairing surface quality of working roller |
| CN114770028A (en) * | 2022-06-01 | 2022-07-22 | 新兴铸管阜康能源有限公司 | Remanufacturing method of pipe mold based on submerged arc welding and laser cladding |
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