CN105506620B - A kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces - Google Patents
A kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces Download PDFInfo
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- CN105506620B CN105506620B CN201511032387.XA CN201511032387A CN105506620B CN 105506620 B CN105506620 B CN 105506620B CN 201511032387 A CN201511032387 A CN 201511032387A CN 105506620 B CN105506620 B CN 105506620B
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- 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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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
Abstract
The invention discloses a kind of synchronization laser cladding methods of the compound nickel-base alloy of copper-based surfaces, belong to field of laser cladding.The present invention includes the following steps：Step 1 treats the progress integral ultrasonic flaw detection of cladding copper coin and surface dye penetrant inspection processing；Step 2 carries out activation coating processing on copper coin surface；Step 3 is integrally preheated to copper coin 300~450 DEG C, is around covered with the heat-preservation cotton of 20~40mm thickness to reduce heat dissipation；Step 4 carries out cladding using the horizontal laser beam of carbon dioxide, inert gas shielding is carried out to molten bath, using Co-based alloy powder cladding powder feeding；Copper coin after step 5, cladding is air-cooled to room temperature.Technical scheme of the present invention carries out coating processing to reduce the reflecting rate of copper material to copper material surface, reduces energy loss, used Co-based alloy powder hardness is high, good with copper-based associativity, improves copper coin wearability and service life.
Description
Technical field
The present invention relates to laser melting and coating technique fields, more specifically to a kind of compound nickel-base alloy of copper-based surfaces
Synchronous laser cladding method.
Background technology
Copper and copper alloy are that earliest one of metal material is used in human history, and copper remains very heavy in industry at present
A kind of metal wanted, in many links of metallurgical industry, copper is all critical component, and copper is due to excellent thermal conductivity, conduction
Property and excellent formability, are widely used in electric power, electrician, mine, metallurgy and machinery manufacturing industry, but the hardness of copper alloy surface
Low, hot wear-resisting property is poor, greatly limits its application, usually needs to carry out surface modification in engineer application, comprehensive to enhance its
Close mechanical property, common method has plating and thermal spraying, plating, to improve its wearability and corrosion resistance, but due to plating and
Coating prepared by thermal spraying and matrix are mechanical bonds, and the technique of plating is more difficult to control, and process costs are higher, therefore certain
It is reduced in degree strengthens effect.
Laser melting coating (Laser Cladding) is also known as laser cladding or laser cladding, is a kind of new surface modification skill
Art, it is allowed to using the laser beam of high-energy-density together with substrate surface thin layer by adding cladding material in substrate surface
The method of consolidation, in the filling cladding layer that substrate surface is formed with it is metallurgical binding, laser melting and coating technique can prepare and matrix
The specific function coating of metallurgical binding is formed, it is environmentally safe, also have high productivity, high yield rate and overall cost low
The features such as, but traditional laser melting coating is usually all to carry out cladding in common alloy steel matrix surface, to surface modification need to be carried out
The castering action of the performance of the metal of processing is extremely limited, but there are larger cladding difficulty, mainly copper for red copper alloy
Higher for the reflectivity of laser, the laser for being irradiated to surface is reflected；The thermal conductivity of another aspect copper is good, a large amount of laser energy
Amount is conducted, and required energy is larger when cladding.
Mostly it is that laser melting coating is carried out using the method for preset coating in the prior art in order to reduce the reflectivity on copper surface,
But since the thermal conductivity of copper is good, peripheral region coating has begun to melt when not carrying out cladding processing also, cause amount of powder and
Extraneous gas enters cladding layer, and generation is mingled with and the defects of bubble；In addition, laser cannot be directly to copper-based surfaces after preset coating
It is processed, crucible zone depth is small, and the two is difficult to fully fuse, and bond strength is relatively low, causes service life short.
When carrying out copper-based surfaces cladding, on the one hand wants to obtain higher bond strength, on the other hand can not solve again
The reflectivity of copper and the difficult point of thermal conductivity, cause the wearability of acid bronze alloy to be difficult to effectively improve, and therefore, how to improve laser
Melting and coating technique so that application of the laser melting and coating technique in acetic acid technology is more universal, is of great significance.
Chinese Patent Application No.：201410021469.3 the applying date：On January 17th, 2014, invention and created name are：One
The method of Albatra metal surface laser gradient cladding alloy powder, it is molten that this application discloses a kind of copper alloy surface laser gradients
Cover the method for alloy powder.The use of ingredient is 4%~6% Al, 92%~93.5% Ni, remaining is the nickel-base alloy of impurity
Powder and ingredient be 0.9%~1.2% C, 26.5%~30.5% Cr, 0.8%~1.1% Si, 3.4%~5.4%
W, 1.0%~2.0% Fe, 1.2%~2% Ni, remaining for Co Co-based alloy powder as coating, by above-mentioned powder
It mixes and is tuned into paste respectively with bonding agent, after being pre-processed to the copper alloy surface that need to be handled, by institute
The two kinds of pastes obtained are respectively coated on copper alloy matrix, make it have Copper substrate-Ni-based coating-cobalt-based coating-Ni-based painting
The structure of layer-cobalt-based coating finally carries out laser melting coating.
Chinese Patent Application No.：200910273446.0 the applying date：On December 29th, 2009, this application discloses copper
And copper alloy surface laser melting coating composite wear-resistant layer and preparation method, which is at least two layers or two layers or more
Multilayer Laser Cladding layer is constituted, and the coating for connecting base material is first layer, also referred to as transition zone, is a kind of nickel-base alloy, by weight hundred
Divide and is than calculating its ingredient：Cu 20.0~30.0%, Al6.0~8.0%, Si 0.3~0.6%, Zr 1.7~2.4% are remaining
Amount is Ni；Remainder layer is cobalt-base alloys, its ingredient is count by weight percentage：C 1.0~1.5%, Cr 25~30%, Fe2
~4%, W 10~15%, Si 0.8~1.2%, B 3~4%, Ti 8~12%, Ni 10~12%, surplus Co.
Above two method is to carry out cladding using preset coating, and the bond strength between cladding layer is relatively low, makes
It is short with service life height.
Invention content
1. technical problems to be solved by the inivention
It is an object of the invention to overcome the shortcomings of that copper material surface laser cladding difficulty is big in the prior art, provides one kind
The synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces, technical scheme of the present invention carry out at overlay film copper material surface
It manages to reduce the reflecting rate of copper material, reduces energy loss, used Co-based alloy powder hardness is high, with copper-based associativity
It is good, improve service life.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces of the present invention, includes the following steps：
Step 1 treats cladding copper coin and carries out integral ultrasonic flaw detection and surface dye penetrant inspection and ensures flawless and fatigue layer；
Step 2 carries out activation coating processing on copper coin surface；
Step 3, to copper coin entirety the pre-heat treatment；
Step 4 carries out cladding using the horizontal laser beam of carbon dioxide, inert gas shielding is carried out to molten bath, using Ni-based conjunction
Golden powder melting powder feeding, laser power select 3.8~4.2kW, 350~420mm/min of sweep speed, spot diameter be 3~
5mm, scan mode are that overlap joint scans, and overlapping rate is 30~50%, and cladding layer overall thickness is 0.3~0.5mm；
Copper coin after step 5, cladding is air-cooled to room temperature.
As further improvement of the present invention, the activation coating processing described in step 2 includes following technical process：
(1) it to copper coin surface degreasing and washes；
(2) activation process, and washing removal surface impurity again are carried out to the copper coin after washing；
(3) configuration coating treatment liquid carries out black film conversion in proportion, and copper coin is impregnated 1~2 hour in coating treatment liquid,
Then it washes, is dry.
As further improvement of the present invention, the coating treatment liquid is with copper material black film agent A, copper material black skin
Film B presses 2 with water:1:7 mass ratio is formulated.
As further improvement of the present invention, the copper material black film agent A, copper material black film agent B are respectively Pi
Copper material black film agent C4030, the copper material black film agent C4040 of Weir spy's Treatment of Metal Surface Co., Ltd of state city.
As further improvement of the present invention, Co-based alloy powder is by weight percentage respectively at being grouped into step 4：
C 0.1~0.5%, Cr 20~22%, Si 2.5~4.0%, Fe 3~5%, Mo 6.8~9.0%, Nb 3.8~4.2%,
B 1.5~2.2%, surplus Ni.
As further improvement of the present invention, the granularity of the Co-based alloy powder is 100~325 mesh.
As further improvement of the present invention, the cladding powder feeding protects airborne special powder feeder to send and sets powder using argon gas
In end to laser molten pool.
The present invention Co-based alloy powder, Gr have solution strengthening effect, be easy with C, B formed GrC, GrB hard phase from
And improve alloy rigidity and wearability；Make lattice that big distortion occur after Mo solid solutions, notable reinforced alloys matrix improves matrix
Elevated temperature strength and red hardness；Nb is a kind of carbide, affinity of the affinity far above Fe and C of Nb and C, institute
After in powder by cladding, Nb with the C chemical combination in melt, forms the NbC fine particles of a large amount of Dispersed precipitates first, can be used as different
Matter crystallization nuclei improves the associativity of cladding layer and copper coin, has refined tissue.B can not only be promoted strong with thinning microstructure
Degree, can also increase intensity and toughness；Suitable Si can improve the mobility of deposited metals, due to the fast fast thawing of laser melting coating
The characteristics of changing, quickly solidifying, deposited metals have little time dispersion and just start to solidify, and deposited metals can be improved by increasing a certain amount of Si
Distribution；B and Si can be used as molten bath deoxidier, remove oxygen element in molten bath, improve metal fluidity and increase wetability, Neng Gouqi
To solution strengthening and dispersion-strengthened action, the hardness and wearability of overlay are improved.
The alloy all has very outstanding resistance to corrosion to the various corrosive mediums of oxidation and reducing environment, outstanding
The ability of pitting corrosion and crevice corrosion, and not will produce the stress corrosion cracking caused by chloride, outstanding resistance to nothing
Machine acid corrosion ability, such as nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid and sulfuric acid and hydrochloric acid mixed acid, outstanding resistance to various inorganic acids
The ability of mixed solution corrosion, good processability and weldability, no postwelding cracking sensitivity.
3. advantageous effect
Using technical solution provided by the invention, compared with prior art, have the advantages that：
(1) the synchronization laser cladding method of the compound nickel-base alloy of a kind of copper-based surfaces of the invention, in copper coin surface copper
Material black film agent A, copper material black film agent B carry out activation coating processing, chemomotive force are provided for film forming, in copper material table
Face forms black epithelium, improves the extinction effect when processing of copper material surface laser, reduces reflectivity, to ensure that laser treatment is made
Safety when industry and operability can effectively reduce reflection of the copper coin surface to laser, increase the absorptivity of laser, reduce energy
Amount loss；
(2) the synchronization laser cladding method of the compound nickel-base alloy of a kind of copper-based surfaces of the invention, used Ni-based conjunction
The cladding associativity of bronze end and copper coin is good, and not easy to crack during use, service life is long；In addition, the wearing layer after cladding
Copper coin case hardness can be improved, there is excellent wearability.
Description of the drawings
Fig. 1 is the metallograph on laser melting coating surface in the present invention.
Specific implementation mode
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the embodiments.
Embodiment 1
A kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces of the present embodiment, includes the following steps：
Step 1 treats the progress integral ultrasonic flaw detection of cladding copper coin and surface dye penetrant inspection, is confirmed by ultrasonic examination
Without underbead crack, flawless is to ensure that by surface dye penetrant inspection.
Step 2 carries out activation coating processing on copper coin surface, and activation coating processing includes following technical process：
(1) it to copper coin surface degreasing and washes；
Oil removing is one of surface treatment important procedure makes the adhesive force of film reduce because greasy dirt can influence to apply membrane efficiency,
So must clean up.Oil removing uses physical oil-removing method, and it is normal that Weir spy's Treatment of Metal Surface Co., Ltd of Pizhou City can be used
Warm degreasing powder degreases, and deoiling effect is fast.
(2) activation process, and washing removal surface impurity again are carried out to the copper coin after washing；
Activation process is carried out to copper surface using chemical activation method, may be used the mixed solution of iron chloride and nitric acid into
Then row activation process washes and air-dries or dry.Activation process can be eliminated existing for copper material surface state physically or chemically
The inhomogenous influence that film forming procedure is brought promote crystallization uniform to enhance the bond strength of copper alloy surface and cladding layer
It is rapidly formed.
(3) configuration coating treatment liquid carries out black film conversion in proportion, copper coin is impregnated 2 hours in coating treatment liquid, so
It washes afterwards, is dry.
Coating treatment liquid is copper material black film agent A, the copper material with Weir spy's Treatment of Metal Surface Co., Ltd of Pizhou City
Black film agent B presses 2 with water:1:7 mass ratio is formulated, and copper coin is impregnated 2 hours in coating treatment liquid, then water
It washes, dry, coating processing is to form one layer of black protective film on copper surface, is the practical requisite measure for reducing laser reflection.
Copper material black film agent A is the copper material black film agent of Weir spy's Treatment of Metal Surface Co., Ltd of Pizhou City production
C4030 is used cooperatively containing a series of ionizable metal salts such as Cu2+, Ni2+, Zn2+ and copper material black film agent B, is urged to play
Change effect provides specific carrier ion source, and is added as the deposition displacement for copper material surface with yttrium,
Improve the meltbility and smooth degree on copper material surface, significantly reduces reflection of the copper material surface to laser, improve the anti-oxidant of copper material
Property.
Copper material black film agent B is the copper material black film agent of Weir spy's Treatment of Metal Surface Co., Ltd of Pizhou City production
C4040, mainly by having the chemical substances such as the terres rares ion of " industrial vitamin " laudatory title, organic synthesis product and catalyst
Compounding concentrates, and main and copper material black film agent C4030 is used cooperatively, and is catalyzed to part ion therein, and be
Film forming provides chemomotive force, to form black epithelium on copper material surface, improves the extinction effect when processing of copper material surface laser,
Reflectivity is reduced, to ensure safety and the operability when laser treatment operation.
The black protective film of Surface Creation can be significantly improved to the absorptivity of laser (because black light has to other colour systems
The natural absorption characteristic of spectrum).It is more thinner to have than conventional phosphatizing due to containing molybdate composition in melanism film composition
Grain structure to which the thickness of melanism film can reach 18 μm be 2 times of conventional phosphatizing film thickness, in this way but also melanism
Film is more obvious to the absorption of laser.
Step 3, to copper coin entirety the pre-heat treatment.
In general, the shrinking percentage of cladding layer is more than by the smaller base material of heat effect, it is easy to form tensile stress and generate and split
The associativity of the two can be improved using the pre-heat treatment, cracked after avoiding cladding for line；But since the thermal conductivity of copper is preferable, compared with
Low preheating temperature can not continue time enough, and improvement copper coin interior tissue can be protected by copper coin being integrally heated to 300 DEG C or more
On the one hand stress improves the bond strength of cladding layer and copper coin, on the other hand can reduce the stress answered local heating and generated.Examination
It is smaller to test used copper coin, can simply preheat without isothermal holding；If using big copper coin, can carry out as needed pre-
Heat is heated to 300 DEG C or more and keeps the temperature.
Step 4 carries out cladding using the horizontal laser beam of carbon dioxide, carries out inert gas shielding to molten bath, and pass through inertia
Gas send Co-based alloy powder to laser molten pool, protects airborne special powder feeder to send using argon gas and sets powder to laser molten pool
In, it is that overlap joint scans that laser power, which selects 4.0kW, sweep speed 360mm/min, spot diameter 3mm, scan mode, overlap joint
Rate is 45%, and cladding layer thickness is 0.3mm, and copper material surface, which is modified, only needs one layer of cladding.
Wherein, Co-based alloy powder is by weight percentage respectively at being grouped into：C 0.3%, Cr 20.2%, Si 2.8%,
The granularity of Fe 3%, Mo 8.0%, Nb 4.2%, B 2.2%, surplus Ni, Co-based alloy powder are 150 mesh.
Copper coin after step 5, cladding is air-cooled to room temperature.
Embodiment 2
Step 1 treats the progress integral ultrasonic flaw detection of cladding copper coin and surface dye penetrant inspection, is confirmed by ultrasonic examination
Without underbead crack, flawless is to ensure that by surface dye penetrant inspection.
Step 2 carries out activation coating processing on copper coin surface, and activation coating processing includes following technical process：
(1) it to copper coin surface degreasing and washes.
(2) activation process, and washing removal surface impurity again are carried out to the copper coin after washing.
(3) configuration coating treatment liquid carries out black film conversion in proportion, and coating treatment liquid is to use Pizhou City's Weir spy's metal watch
Copper material black film agent C4030, copper material black film agent C4040 and the water of surface treatment Co., Ltd press 2:1:7 mass ratio
It is formulated, copper coin is impregnated 1 hour in coating treatment liquid, then wash, is dry.
Step 3 is integrally preheated to copper coin 350 DEG C, and preheating is evenly heated using 10kW crawler belt heaters, around uses 30mm
Thick heat-preservation cotton is covered to reduce heat dissipation.
Step 4 carries out cladding using the horizontal laser beam of carbon dioxide, carries out inert gas shielding to molten bath, and pass through inertia
Gas send Co-based alloy powder to laser molten pool, protects airborne special powder feeder to send using argon gas and sets powder to laser molten pool
In, it is that overlap joint scans that laser power, which selects 3.8kW, sweep speed 360mm/min, spot diameter 3mm, scan mode, overlap joint
Rate is 45%, and cladding layer thickness is 0.3mm；Wherein, Co-based alloy powder is by weight percentage respectively at being grouped into：C 0.2%,
Cr 20.0%, Si 3.0%, Fe 3%, Mo 8.0%, Nb 4.0%, B 2.0%, surplus Ni, the grain of Co-based alloy powder
Degree is 200 mesh.
Copper coin after step 5, cladding is air-cooled to room temperature.
Embodiment 3
Step 1 treats the progress integral ultrasonic flaw detection of cladding copper coin and surface dye penetrant inspection, is confirmed by ultrasonic examination
Without underbead crack, flawless is to ensure that by surface dye penetrant inspection；
Step 2 carries out activation coating processing on copper coin surface, and activation coating processing includes following technical process：
(1) it to copper coin surface degreasing and washes.
(2) activation process, and washing removal surface impurity again are carried out to the copper coin after washing.
(3) configuration coating treatment liquid carries out black film conversion in proportion, and coating treatment liquid is to use Pizhou City's Weir spy's metal watch
Copper material black film agent C4030, copper material black film agent C4040 and the water of surface treatment Co., Ltd press 2:1:7 mass ratio
It is formulated, copper coin is impregnated 1.5 hours in coating treatment liquid, then wash, is dry.
Step 3 is integrally preheated to copper coin 380 DEG C, and preheating is evenly heated using 10kW crawler belt heaters, around uses 25mm
Thick heat-preservation cotton is covered to reduce heat dissipation.
Step 4 carries out cladding using the horizontal laser beam of carbon dioxide, carries out inert gas shielding to molten bath, and pass through inertia
Gas send Co-based alloy powder to laser molten pool, protects airborne special powder feeder to send using argon gas and sets powder to laser molten pool
In, it is that overlap joint scans that laser power, which selects 4.2kW, sweep speed 400mm/min, spot diameter 3mm, scan mode, overlap joint
Rate is 45%, and cladding layer thickness is 0.4mm；Wherein, Co-based alloy powder is by weight percentage respectively at being grouped into：C 0.1%,
The granularity of Cr 21.5%, Si 3.5%, Fe 3%, Mo 8%, Nb 4%, B 2%, surplus Ni, Co-based alloy powder is
200 mesh.
Copper coin after step 5, cladding is air-cooled to room temperature.Metallograph after cladding is as shown in Figure 1, it is known that copper coin and Ni-based conjunction
Melt binding is realized between gold.
Embodiment 4
Step 1 treats the progress integral ultrasonic flaw detection of cladding copper coin and surface dye penetrant inspection, is confirmed by ultrasonic examination
Without underbead crack, flawless is to ensure that by surface dye penetrant inspection；
Step 2 carries out activation coating processing on copper coin surface, and activation coating processing includes following technical process：
(1) it to copper coin surface degreasing and washes.
(2) activation process, and washing removal surface impurity again are carried out to the copper coin after washing.
(3) configuration coating treatment liquid carries out black film conversion in proportion, and coating treatment liquid is to use Pizhou City's Weir spy's metal watch
Copper material black film agent C4030, copper material black film agent C4040 and the water of surface treatment Co., Ltd press 2:1:7 mass ratio
It is formulated, copper coin is impregnated 2 hours in coating treatment liquid, then wash, is dry.
Step 3 is integrally preheated to copper coin 330 DEG C, and preheating is evenly heated using 10kW crawler belt heaters, around uses 30mm
Thick heat-preservation cotton is covered to reduce heat dissipation.
Step 4 carries out cladding using the horizontal laser beam of carbon dioxide, carries out inert gas shielding to molten bath, and pass through inertia
Gas send Co-based alloy powder to laser molten pool, protects airborne special powder feeder to send using argon gas and sets powder to laser molten pool
In, it is that overlap joint scans that laser power, which selects 4.0kW, sweep speed 420mm/min, spot diameter 5mm, scan mode, overlap joint
Rate is 45%, and cladding layer thickness is 0.3mm；Wherein, Co-based alloy powder is by weight percentage respectively at being grouped into：C 0.1%,
Cr 22.0%, Si 3.0%, Fe 4.0%, Mo 7.5%, Nb 4%, B 1.7%, surplus Ni, the grain of Co-based alloy powder
Degree is 200 mesh.
Copper coin after step 5, cladding is air-cooled to room temperature.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (5)
1. a kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces, it is characterised in that：Include the following steps：
Step 1 treats cladding copper coin and carries out integral ultrasonic flaw detection and surface dye penetrant inspection and ensures flawless and fatigue layer；
Step 2 carries out activation coating processing on copper coin surface；Black film conversion is carried out including preparing coating treatment liquid in proportion,
Copper coin impregnates 1~2 hour in coating treatment liquid, then washes, is dry；The coating treatment liquid is to use copper material black epithelium
Agent A, copper material black film agent B and water press 2:1:7 mass ratio is formulated；
Step 3, to copper coin entirety the pre-heat treatment；
Step 4 carries out cladding using the horizontal laser beam of carbon dioxide, inert gas shielding is carried out to molten bath, using nickel-base alloy powder
Last cladding powder feeding, it is 3~5mm that laser power, which selects 3.8~4.2kW, 350~420mm/min of sweep speed, spot diameter, is swept
It is that overlap joint scans to retouch mode, and overlapping rate is 30~50%, and cladding layer overall thickness is 0.3~0.5mm；Co-based alloy powder is by weight
Percentage is respectively at being grouped into：C 0.1~0.5%, Cr 20~22%, Si 2.5~4.0%, Fe 3~5%, Mo 6.8~
9.0%, Nb 3.8~4.2%, B 1.5~2.2%, surplus Ni；
Copper coin after step 5, cladding is air-cooled to room temperature.
2. a kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces according to claim 1, feature exist
In：Activation coating processing described in step 2 includes following technical process：
(1) it to copper coin surface degreasing and washes；
(2) activation process, and washing removal surface impurity again are carried out to the copper coin after washing；
(3) coating treatment liquid is prepared in proportion and carry out black film conversion, copper coin is impregnated 1~2 hour in coating treatment liquid, so
It washes afterwards, is dry.
3. a kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces according to claim 2, feature exist
In：The copper material black film agent A, copper material black film agent B are respectively Weir spy's Treatment of Metal Surface Co., Ltd of Pizhou City
Copper material black film agent C4030, copper material black film agent C4040.
4. a kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces according to claim 1, feature exist
In：The granularity of the Co-based alloy powder is 100~325 mesh.
5. a kind of synchronization laser cladding method of the compound nickel-base alloy of copper-based surfaces according to claim 1, feature exist
In：The cladding powder feeding is protected airborne special powder feeder to send and is set in powder to laser molten pool using argon gas.
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| CN111455373A (en) * | 2020-03-23 | 2020-07-28 | 陕西斯瑞新材料股份有限公司 | Preparation method of high-thermal-conductivity high-temperature-resistant composite copper alloy heat dissipation material |
| CN113463091A (en) * | 2021-07-01 | 2021-10-01 | 安徽煜宸激光技术有限公司 | Copper alloy cladding method |
| CN114703476B (en) * | 2022-04-07 | 2023-04-18 | 西安交通大学 | Non-cracking high-wear-resistance corrosion-resistance nickel-based composite material coating and preparation method thereof |
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| CN104385703A (en) * | 2014-11-20 | 2015-03-04 | 西安交通大学 | Composite gradient coating for repairing surface of vane and preparation method thereof |
| CN104862694A (en) * | 2015-05-05 | 2015-08-26 | 潍柴动力股份有限公司 | Manufacturing method of strengthened valve tappet |
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| CN102965665A (en) * | 2012-12-09 | 2013-03-13 | 华北电力大学 | Powdered material used for preparing high-temperature wear-resistant cladding layer and preparation method thereof |
| CN103233221A (en) * | 2013-04-17 | 2013-08-07 | 武汉点金激光科技有限公司 | Concrete pump vehicle wear plate surface ceramic powder clad layer and laser cladding method thereof |
| CN104385703A (en) * | 2014-11-20 | 2015-03-04 | 西安交通大学 | Composite gradient coating for repairing surface of vane and preparation method thereof |
| CN104862694A (en) * | 2015-05-05 | 2015-08-26 | 潍柴动力股份有限公司 | Manufacturing method of strengthened valve tappet |
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