CN108103497A - A kind of method for preparing low-temperature welding titanium carbide coating - Google Patents

A kind of method for preparing low-temperature welding titanium carbide coating Download PDF

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CN108103497A
CN108103497A CN201711380317.2A CN201711380317A CN108103497A CN 108103497 A CN108103497 A CN 108103497A CN 201711380317 A CN201711380317 A CN 201711380317A CN 108103497 A CN108103497 A CN 108103497A
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titanium carbide
powder
coating
temperature
low
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CN108103497B (en
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薛烽
卜丽丽
郝建
周健
白晶
尹宏锐
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Southeast University
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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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C13/00—Alloys based on tin
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/027—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal matrix material comprising a mixture of at least two metals or metal phases or metal matrix composites, e.g. metal matrix with embedded inorganic hard particles, CERMET, MMC.
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C25D5/50—After-treatment of electroplated surfaces by heat-treatment

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The present invention provides a kind of methods for preparing low-temperature welding titanium carbide coating, and titanium carbide micro powder is welded on base metal surface under cryogenic using the alloyed powder and scaling powder of low melting point, is reduced because of the excessively high influence to parent metal performance of welding temperature.Mainly include following steps：1. low-melting alloy powder, scaling powder and titanium carbide micro powder are uniformly mixed into paste with certain proportion.2. the paste obtained containing titanium carbide micro powder is uniformly applied to matrix surface.3. the above-mentioned material for scribbling paste is heated to certain temperature, by welding titanium carbide micro powder is made to be fixedly arranged at matrix surface.4. finally also in finished surface copper facing obtained and diffusion annealing can be carried out to obtain higher bond strength.Titanium carbide coating combination power produced by the present invention is big, and intensity is high, so as to greatly improve the processing quality of finished product and efficiency.

Description

A kind of method for preparing low-temperature welding titanium carbide coating
Technical field
The present invention relates to a kind of technologies of low-temperature welding titanium carbide coating, belong to technical field of material.
Background technology
Titanium carbide is known most hard carbide, is the important source material for producing hard alloy.Titanium carbide also has heat firmly The features such as degree is high, coefficient of friction is small, thermal conductivity is low, thus the cutter containing titanium carbide have than the cutter of other materials it is higher Cutting speed and longer service life.It if, can be significantly when preparing one layer of carbonization titanium lamina on the surface of other materials Improve the performance of material.Since titanium carbide grinding tool generally requires great intensity and wearability, so the preparation of titanium carbide coating Method seems particularly important.The consolidation method of titanium carbide abrasive material in the coating has galvanoplastic, resin-bonded method, cal rolling at present Method and solder brazing method etc., but each method has the defects of certain.Resin-bonded method resin is bonding agent titanium carbide abrasive material It is fixedly arranged on matrix, but the heat-resisting and wear-resisting property of the titanium carbide scroll saw prepared is bad, and matrix is to the hold of titanium carbide granule Small, titanium carbide granule easily comes off.Solder brazing method is in matrix surface high-temperature soldering individual layer titanium carbide granule, but is heated at high temperature Journey can generate thermal damage to matrix, this has a certain impact to the performance of matrix.Galvanoplastic pass through using plating metal as bonding agent The electro-deposition effect of metal is fixedly arranged at titanium carbide abrasive material on matrix, and production efficiency is relatively low, of high cost.These all limit carbon Change the application of titanium coating product.
In order to prepare a kind of high performance titanium carbide coating product, the present invention, which proposes, a kind of prepares low-temperature welding titanium carbide The method of coating, titanium carbide coating combination power obtained is big, and intensity is high, so as to greatly improve the as received basis of titanium carbide coating product Amount and efficiency.
The content of the invention
Technical problem：A kind of step of present invention offer is simple, and welding temperature is relatively low, the preparation eutectic welding small to matrix damage The method for connecing titanium carbide coating the method increase the intensity of coating, and titanium carbide coating combination power is big, and intensity is high, and obtained Band titanium carbide coating product processing quality and efficient.
Technical solution：The method of the preparation low-temperature welding titanium carbide coating of the present invention, comprises the following steps：
1) low-melting alloy powder, scaling powder and titanium carbide micro powder according to following ratio are mixed and uniform stirring is into pastes Object：Titanium carbide micro powder accounts for the 20%~40% of gross mass, and scaling powder accounts for the 10%~50% of gross mass, and surplus is low-melting alloy Powder；
2) substrate material surface it is cleaned and removal oxidation corrosion object pretreatment after, by paste made from the step 1) Object is uniformly applied to matrix surface；
3) basis material that the surface that the step 2) is made is scribbled to paste is put into reflow machine, through Reflow Soldering It is taken out after connecing；
4) product that the step 3) is made is put into electroplating bath and one layer of copper, and diffusion annealing is plated on surface, obtained The low-temperature welding diamond coatings being attached on basis material.
Further, in the method for the present invention, the low-melting alloy powder in step 1) is Sn based alloy powder, can be Sn-Ag Sn-3.0Ag-0.5Cu, Sn-1.0Ag-0.5Cu, Sn-3.5Ag alloyed powder of system or the Sn-9.0Zn alloyed powders of Sn-Zn systems.
Further, in the method for the present invention, the scaling powder in step 1) is rosin flux or water-soluble flux.
Further, in the method for the present invention, the titanium carbide micro powder surface in step 1) is coated with metallic nickel or titanium, adds carbon Change the wetability of titanium and low-melting alloy, for titanium carbide particle diameter distribution at 2~40 μm, thickness of coating is 1~5 μm.
Further, in the method for the present invention, matrix in step 2) is copper coating or the metal of brass, substrate pretreated Step is electrochemical deoiling, hot water injection, cold water flush, pickling, water flushing.
Further, in the method for the present invention, the matrix in step 2) is copper coating or the steel wire of brass, after pretreatment The silk material container of filling paste by one circular aperture in pull out, so as in the cream of silk material surface smear fixed thickness Shape object.
Further, in the method for the present invention, the rework profile peak temperature of reflow soldering in step 3) is in alloyed powder fusing point More than temperature 10~50 DEG C.
Further, in the method for the present invention, the copper coating thickness control in step 4) is at 5~10 μm.
Further, in the method for the present invention, when the annealing process condition in step 4) is that 150~250 DEG C of heat preservations 1~2 are small.
Plating metal on surface titanium carbide is fixedly arranged at base by the present invention using the alloyed powder and scaling powder of low melting point by Reflow Soldering Body surface face in its copper coating and can finally anneal, and reacted to diffuse to form high-strength copper tin alloy, step is simple, obtained Low-temperature welding titanium carbide coating combination power is big, and intensity is high, and welding temperature is relatively low, small to matrix damage, so as to greatly improve carbon Change the work quality and efficiency of titanium coating product.
Advantageous effect：Compared with prior art, the present invention has the advantages that：
Firstth, traditional solder brazing can make basis material such as steel wire after processing hardening etc., and intensity drops under the high temperature conditions Low, low-melting alloy powder welding titanium carbide coating temperature is low, smaller to the damage of matrix, maintains the intensity and toughness of matrix, So that titanium carbide coating product disclosure satisfy that intensity needed for the course of work and toughness.
Secondth, the semi-finished product outermost layer copper facing after Reflow Soldering using electroplating technology, and anneal.Copper and tin carries out reaction expansion It dissipates, generates signal bronze layer, as shown in 1 in Fig. 1, intensity, the hardness of alloy-layer are significantly larger than pure copper layer, add to carbonization The hold of titanium extends the service life of titanium carbide coating.
It 3rd,, can using the titanium carbide micro powder of plating metal on surface compared with not carrying out the titanium carbide of surface metalation processing Increase the wetability of titanium carbide and alloyed powder, when welding can generate intermetallic compound with the tin in solder layer, in Fig. 1 Shown in the alloy-layer 6 of titanium carbide surface metal and tin, hold of the solder layer to titanium carbide is further improved.
4th, compared with electroplating titanium carbide coating, time and the cost of preparation are saved, titanium carbide hold bigger is cut It is more preferable to cut effect；Compared with resin-bonding titanium carbide coating, the intensity bigger of low-temperature welding titanium carbide coating, service life is more It is long.
5th, Reflow Soldering can realize the controllable of temperature so that titanium carbide granule more effective can must be fixedly arranged at matrix by soldering paste Surface, and combination power is big, improves the service life of product.
6th, this method is easy to operate, efficient, product quality is excellent, can be with continuous production.
Description of the drawings
Fig. 1 is low-temperature welding titanium carbide coating structure diagram；
Fig. 2 is titanium carbide scroll saw cross-sectional view obtained；
Fig. 3 is titanium carbide coating steel plain schematic diagram obtained.
Have in figure：1- signal bronze layers；2- solder layers；3- titanium carbides；4- basis materials；5- titanium carbide surface metal-layers； The alloy-layer of 6- titanium carbides surface metal and tin.
Specific embodiment
With reference to embodiment and Figure of description, the present invention is further illustrated.
In order to absolutely prove the technique effect of the present invention, one group of contrast experiment is carried out, experimental procedure is as follows：
1) by Sn-9.0Zn alloyed powders, water-soluble flux and the naked powder of titanium carbide (particle diameter distribution is 5-10 μm) with 7: 4: 7 Quality proportioning mixes, and is stirred 5 minutes with 5r/min rotating speeds on mixer；After vacuumizing 25 points are stirred with 25r/min rotating speeds again The paste containing titanium carbide micro powder is made in clock.
2) a diameter of 80 μm of copper coating steel wires are chosen to pre-process as basis material, and to steel wire, 1. prepares and remove Fluid：Sodium hydroxide 10g/L, natrium carbonicum calcinatum 25g/L, sodium metasilicate 22g/L, sodium phosphate 25g/L, are cleaned under the conditions of 60 DEG C. It is clean and dry with 100g/L hydrochloric acid to get 3. deionized water rinsing express developed after 2. steel wire surface is rinsed well with water；Again by silk For material with certain speed by a container equipped with the paste prepared by step 1), container outlet is that 150 μm of circles of diameter are small Hole.
3) steel wire that there is paste on the surface that the step 2) is made is put into reflow machine, sets temperature change Curve (as follows), takes out after finishing；Sn-9.0Zn alloyed powders fusing point used in this contrast experiment is 198.5 DEG C, rework profile temperature Peak value is arranged to more than melting temperature 20 DEG C, is 218.5 DEG C.
Heating zone：- 130 DEG C of room temperature, 90 seconds；
Preheating zone：130-160 DEG C, 60 seconds；
Reflow heating zone：160-180 DEG C, 20 seconds；
Reflow area：180-218.5 DEG C, 60 seconds；
Cooling zone：218.5-75 DEG C, 60 seconds.
4) titanium carbide consolidation strength detection is carried out to the titanium carbide scroll saw of preparation using steel disc scraped finish method, scraped finish 5 times is carbon-free Change titanium to come off, increase scraped finish number a small amount of titanium carbide occurs to 19 times and comes off.Due to soldering layer to the hold of titanium carbide not It is enough to resist titanium carbide shearing force suffered during scraped finish, therefore titanium carbide abrasive material is split away off soon, service life It is very short.
The embodiment of the present invention is as follows：
Embodiment 1
1) by Sn-9.0Zn alloyed powders, water-soluble flux and the naked powder of titanium carbide (particle diameter distribution is 5-10 μm) with 7: 4: 7 Quality proportioning mixes, and is stirred 5 minutes with 5r/min rotating speeds on mixer；After vacuumizing 25 points are stirred with 25r/min rotating speeds again The paste containing titanium carbide micro powder is made in clock.
2) a diameter of 80 μm of copper coating steel wires are chosen to pre-process as basis material, and to steel wire, 1. prepares and remove Fluid：Sodium hydroxide 10g/L, natrium carbonicum calcinatum 25g/L, sodium metasilicate 22g/L, sodium phosphate 25g/L, are cleaned under the conditions of 60 DEG C. It is clean and dry with 100g/L hydrochloric acid to get 3. deionized water rinsing express developed after 2. steel wire surface is rinsed well with water；Again by silk For material with certain speed by a container equipped with the paste prepared by step 1), container outlet is that 150 μm of circles of diameter are small Hole.
3) steel wire that there is paste on the surface that the step 2) is made is put into reflow machine, sets temperature change Curve (as follows), takes out after finishing；Sn-9.0Zn alloyed powders fusing point used in the present embodiment is 198.5 DEG C, rework profile temperature peaks Value is arranged to more than melting temperature 20 DEG C, is 218.5 DEG C.
Heating zone：- 130 DEG C of room temperature, 90 seconds；
Preheating zone：130-160 DEG C, 60 seconds；
Reflow heating zone：160-180 DEG C, 20 seconds；
Reflow area：180-218.5 DEG C, 60 seconds；
Cooling zone：218.5-75 DEG C, 60 seconds.
4) semi-finished product that the step 3) is made are put into connection cathode connection head in electroplating bath, anode is copper billet, plating Liquid is the acid copper plating bath of standard, zinc coat thickness control at 5~10 μm, be subsequently placed into 150 DEG C of baking ovens heat preservation 2 it is small when, obtain Final band titanium carbide coating scroll saw.Titanium carbide consolidation strength inspection is carried out to the titanium carbide scroll saw of preparation using steel disc scraped finish method It surveys, scraped finish 18 times, Non-carbonized titanium comes off, and increase scraped finish number a small amount of titanium carbide occurs to 86 times and comes off.Compared with contrast experiment, The step of adding copper facing annealing, and so that the hold of titanium carbide greatly improves, this is because in the copper and layer in coating Tin react diffusion, generate signal bronze, intensity greatly improves, during the scraped finish that can preferably resist titanium carbide Suffered shearing force.
Embodiment 2
1) by Sn-9.0Zn alloyed powders, water-soluble flux and plating nickel on surface titanium carbide micro powder, (thickness of coating is 2 μm, Footpath is distributed as 5-10 μm) it is mixed with 7: 4: 7 quality proportionings, it is stirred 5 minutes with 5r/min rotating speeds on mixer；After vacuumizing again It is stirred 25 minutes with 25r/min rotating speeds, the paste containing titanium carbide micro powder is made.
2) a diameter of 80 μm of copper coating steel wires are chosen to pre-process as basis material, and to steel wire, 1. prepares and remove Fluid：Sodium hydroxide 10g/L, natrium carbonicum calcinatum 25g/L, sodium metasilicate 22g/L, sodium phosphate 25g/L, are cleaned under the conditions of 60 DEG C. It is clean and dry with 100g/L hydrochloric acid to get 3. deionized water rinsing express developed after 2. steel wire surface is rinsed well with water；Again by silk For material with certain speed by a container equipped with the paste prepared by step 1), container outlet is that 150 μm of circles of diameter are small Hole.
3) steel wire that there is paste on the surface that the step 2) is made is put into reflow machine, sets temperature change Curve (as follows), takes out after finishing；Sn-9.0Zn alloyed powders fusing point used in the present embodiment is 198.5 DEG C, rework profile temperature peaks Value is arranged to more than melting temperature 30 DEG C, is 218.5 DEG C.
Heating zone：- 130 DEG C of room temperature, 90 seconds；
Preheating zone：130-160 DEG C, 60 seconds；
Reflow heating zone：160-180 DEG C, 20 seconds；
Reflow area：180-218.5 DEG C, 60 seconds；
Cooling zone：218.5-75 DEG C, 60 seconds.
4) semi-finished product that the step 3) is made are put into connection cathode connection head in electroplating bath, anode is copper billet, plating Liquid is the acid copper plating bath of standard, zinc coat thickness control at 5~10 μm, be subsequently placed into 150 DEG C of baking ovens heat preservation 2 it is small when, obtain Final band titanium carbide coating scroll saw, schematic cross-section are as shown in Figure 2.Using steel disc scraped finish method to the titanium carbide scroll saw of preparation into Row titanium carbide consolidation strength detects, and scraped finish 36 times, Non-carbonized titanium comes off, and increases scraped finish number and a small amount of titanium carbide occurs to 146 times It comes off, compared with contrast experiment and embodiment 1, titanium carbide consolidation strength is maximum in the present embodiment, is on the one hand due to this implementation The plating nickel on surface titanium carbide micron used in example, under welding temperature, with glass putty alloying reaction can occur for nickel layer, generate nickel tin Alloy, and this alloy-layer so that the combination of soldering layer and titanium carbide is even closer, so as to improve the hold to titanium carbide； The tin in copper and layer in another aspect coating reacts diffusion, generates signal bronze, intensity greatly improves, Neng Gougeng Suffered shearing force during the scraped finish of good resistance titanium carbide.
Embodiment 3
) by Sn-1.0Ag-0.5Cu alloyed powders, water-soluble flux and ti coat on diamond titanium carbide micro powder, (thickness of coating is 1 μ M, particle diameter distribution is 2-3 μm) it is mixed with 3: 5: 2 quality proportionings, it is stirred 5 minutes with 5r/min rotating speeds on mixer；It vacuumizes It is stirred 25 minutes with 25r/min rotating speeds again afterwards, the paste containing titanium carbide micro powder is made.
2) a diameter of 70 μm of copper coating steel wires are chosen to pre-process as basis material, and to steel wire, 1. prepares and remove Fluid：Sodium hydroxide 10g/L, natrium carbonicum calcinatum 25g/L, sodium metasilicate 22g/L, sodium phosphate 25g/L, are cleaned under the conditions of 60 DEG C. It is clean and dry with 100g/L hydrochloric acid to get 3. deionized water rinsing express developed after 2. steel wire surface is rinsed well with water；Again by silk For material with certain speed by a container equipped with the paste prepared by step 1), container outlet is that 90 μm of circles of diameter are small Hole.
3) steel wire that there is paste on the surface that the step 2) is made is put into reflow machine, sets temperature change Curve (as follows), takes out after finishing；Sn-1.0Ag-0.5Cu alloyed powders fusing point used in the present embodiment is 220 DEG C, rework profile temperature Degree peak value is arranged to more than melting temperature 50 DEG C, is 270 DEG C.
Heating zone：- 140 DEG C of room temperature, 90 seconds；
Preheating zone：140-175 DEG C, 60 seconds；
Reflow heating zone：175-200 DEG C, 20 seconds；
Reflow area：200-270 DEG C, 60 seconds；
Cooling zone：270-75 DEG C, 60 seconds.
4) semi-finished product that the step 3) is made are put into connection cathode connection head in electroplating bath, anode is copper billet, plating Liquid is the acid copper plating bath of standard, zinc coat thickness control at 5~10 μm, be subsequently placed into 210 DEG C of baking ovens heat preservation 1.5 it is small when, obtain To final band titanium carbide coating scroll saw.Titanium carbide consolidation strength inspection is carried out to the titanium carbide scroll saw of preparation using steel disc scraped finish method It surveys, scraped finish 24 times, Non-carbonized titanium comes off, and increase scraped finish number a small amount of titanium carbide occurs to 150 times and comes off, and is carbonized with plating nickel on surface Titanium micro mist is the same, and the plating titanium layer on titanium carbide surface can also react under welding temperature with tin generates titanium-tin alloy layer, this Alloy-layer can enhance the combination power of layer and titanium carbide so that the consolidation strength increase of titanium carbide.
Embodiment 4
1) by Sn-3.5Ag alloyed powders, rosin flux and ti coat on diamond titanium carbide micro powder, (thickness of coating is 4 μm, grain size It is distributed as 35-40 μm) it is mixed with 5: 1: 4 quality proportionings, it is stirred 5 minutes with 5r/min rotating speeds on mixer；After vacuumizing again It is stirred 25 minutes with 25r/min rotating speeds, the paste containing titanium carbide micro powder is made.
2) 10 × 10 × 5mm surface brass plating aluminium sheets are chosen to pre-process as basis material, and to aluminium sheet, is 1. prepared Degreasing fluid：Sodium hydroxide 10g/L, natrium carbonicum calcinatum 25g/L, sodium metasilicate 22g/L, sodium phosphate 25g/L are clear under the conditions of 60 DEG C It washes.It is clean and dry with 100g/L hydrochloric acid to get 3. deionized water rinsing express developed after 2. surface of aluminum plate is rinsed well with water；Most Afterwards surface of aluminum plate is uniformly applied to by paste made from the step 1)；
3) aluminium sheet that there is paste on the surface that the step 2) is made is put into reflow machine, sets temperature change Curve (as follows), takes out after finishing；Sn-3.5Ag alloyed powders fusing point used in the present embodiment is 221 DEG C, rework profile temperature peak 10 DEG C are arranged to more than melting temperature, is 231 DEG C.
Heating zone：- 140 DEG C of room temperature, 90 seconds；
Preheating zone：140-170 DEG C, 60 seconds；
Reflow heating zone：170-190 DEG C, 20 seconds；
Reflow area：190-231 DEG C, 60 seconds；
Cooling zone：231-75 DEG C, 60 seconds.
4) semi-finished product that the step 3) is made are put into connection cathode connection head in electroplating bath, anode is copper billet, plating Liquid is the acid copper plating bath of standard, zinc coat thickness control at 8 μm or so, be subsequently placed into 210 DEG C of baking ovens heat preservation 1 it is small when, obtain Final band titanium carbide coating aluminium sheet, structure diagram are as shown in Figure 3.Using steel disc scraped finish method to the band titanium carbide coating of preparation Aluminium sheet carries out titanium carbide consolidation strength detection, and scraped finish 30 times, Non-carbonized titanium comes off, and it is a small amount of to 129 appearance to increase scraped finish number Titanium carbide comes off, and titanium carbide hold is stronger, and coating abrasion performance is preferable.As plating nickel on surface titanium carbide micro powder, titanium carbide table The plating titanium layer in face can also react with tin under welding temperature and generate titanium-tin alloy layer, this alloy-layer can enhance layer and carbon Change the combination power of titanium so that the consolidation strength increase of titanium carbide.
Embodiment 5
1) by Sn-3.0Ag-0.5Cu alloyed powders, rosin flux and ti coat on diamond titanium carbide micro powder, (thickness of coating is 5 μ M, 35-40 μm of grain size) it is mixed with 3: 5: 2 quality proportionings, it is stirred 5 minutes with 5r/min rotating speeds on mixer；After vacuumizing again It is stirred 25 minutes with 25r/min rotating speeds, the paste containing titanium carbide micro powder is made.
2) 10 × 10 × 5mm surface brass plating aluminium sheets are chosen to pre-process as basis material, and to aluminium sheet, is 1. prepared Degreasing fluid：Sodium hydroxide 10g/L, natrium carbonicum calcinatum 25g/L, sodium metasilicate 22g/L, sodium phosphate 25g/L are clear under the conditions of 60 DEG C It washes.It is clean and dry with 100g/L hydrochloric acid to get 3. deionized water rinsing express developed after 2. surface of aluminum plate is rinsed well with water；Most Afterwards surface of aluminum plate is uniformly applied to by paste made from the step 1)；
3) aluminium sheet that there is paste on the surface that the step 2) is made is put into reflow machine, sets temperature change Curve (as follows), takes out after finishing；Sn-3.0Ag-0.5Cu alloyed powders fusing point used in the present embodiment is 217 DEG C, rework profile temperature Degree peak value is arranged to more than melting temperature 30 DEG C, is 247 DEG C.
Heating zone：- 140 DEG C of room temperature, 90 seconds；
Preheating zone：140-170 DEG C, 60 seconds；
Reflow heating zone：170-190 DEG C, 20 seconds；
Reflow area：190-247 DEG C, 60 seconds；
Cooling zone：247-75 DEG C, 60 seconds.
4) semi-finished product that the step 3) is made are put into connection cathode connection head in electroplating bath, anode is copper billet, plating Liquid is the acid copper plating bath of standard, zinc coat thickness control at 8 μm or so, be subsequently placed into 200 DEG C of baking ovens heat preservation 1.5 it is small when, obtain To final band titanium carbide coating aluminium sheet.Titanium carbide consolidation is carried out to the band titanium carbide coating aluminium sheet of preparation using steel disc scraped finish method Intensity detection, scraped finish 26 times, Non-carbonized titanium comes off, and increase scraped finish number a small amount of titanium carbide occurs to 127 times and comes off, titanium carbide handle Holding force is stronger, and coating abrasion performance is preferable.As plating nickel on surface titanium carbide micro powder, the plating titanium layer on titanium carbide surface is in welding temperature Under can also react with tin generation titanium-tin alloy layer, this alloy-layer can enhance the combination power of layer and titanium carbide so that carbon Change the consolidation strength increase of titanium.
The foregoing is merely the present invention preferred forms, protection scope of the present invention not using the above embodiment as Limit, as long as those skilled in the art's equivalence changes that the content is made according to the present invention, should all include in claims and remember In the protection domain of load.

Claims (9)

  1. A kind of 1. method for preparing low-temperature welding titanium carbide coating, it is characterised in that：This method comprises the following steps：
    1) low-melting alloy powder, scaling powder and titanium carbide micro powder according to following ratio are mixed and uniform stirring is into pastes：Carbon Change titanium micro mist and account for the 20%~40% of gross mass, scaling powder accounts for the 10%~50% of gross mass, and surplus is low-melting alloy powder；
    2) substrate material surface it is cleaned and removal oxidation corrosion object pretreatment after, paste made from the step 1) is equal It is even to be applied to matrix surface；
    3) basis material that the surface that the step 2) is made is scribbled to paste is put into reflow machine, after reflow soldering It takes out；
    4) product that the step 3) is made is put into electroplating bath and one layer of copper, and diffusion annealing is plated on surface, adhered to Low-temperature welding diamond coatings on basis material.
  2. 2. a kind of method for preparing low-temperature welding titanium carbide coating as described in claim 1, it is characterised in that：The step 1) In low-melting alloy powder be Sn based alloy powder, be Sn-3.0Ag-0.5Cu, Sn-1.0Ag-0.5Cu, Sn-3.5Ag alloyed powder or Sn-9.0Zn alloyed powders.
  3. 3. a kind of method for preparing low-temperature welding titanium carbide coating as described in claim 1, it is characterised in that：The step 1) In scaling powder be rosin flux or water-soluble flux.
  4. 4. a kind of method for preparing low-temperature welding titanium carbide coating as described in claim 1,2 or 3, it is characterised in that：It is described Titanium carbide micro powder surface in step 1) is coated with metallic nickel or titanium, and titanium carbide micro powder particle diameter distribution is in 2~40 μm, thickness of coating 1~5 μm.
  5. 5. a kind of method for preparing low-temperature welding titanium carbide coating as described in claim 1,2 or 3, it is characterised in that：It is described Matrix in step 2) is copper coating or the metal of brass, and substrate material surface pre-treatment step is electrochemical deoiling, hot water rushes Wash, cold water flush, pickling, water rinse.
  6. 6. a kind of method for preparing low-temperature welding titanium carbide coating as claimed in claim 5, it is characterised in that：The step 2) Matrix is the steel wire of copper coating or brass, the circular aperture for the container that pretreated silk material is filled paste by one Middle pull-out, so as in the paste of silk material surface smear fixed thickness.
  7. 7. a kind of method for preparing low-temperature welding titanium carbide coating as described in claim 1,2 or 3, it is characterised in that：It is described The rework profile peak temperature of reflow soldering in step 3) is 10~50 DEG C more than alloyed powder melting temperature.
  8. 8. a kind of method for preparing low-temperature welding titanium carbide coating as described in claim 1,2 or 3, it is characterised in that：It is described Copper coating thickness control in step 4) is at 5~10 μm.
  9. 9. a kind of method for preparing low-temperature welding titanium carbide coating as described in claim 1,2 or 3, it is characterised in that：It is described When annealing process condition in step 4) is that 150~210 DEG C of heat preservations 1~2 are small.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113831148A (en) * 2021-08-16 2021-12-24 有研工程技术研究院有限公司 Titanium carbide-based ceramic and hard alloy welding round bar and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1258580A (en) * 1999-12-27 2000-07-05 华南理工大学 Active solder and its preparation
CN1332663A (en) * 1998-03-11 2002-01-23 诺顿公司 Superabrasive wire saw and method for making the saw
CN107124835A (en) * 2017-05-25 2017-09-01 杭州晶志康电子科技有限公司 Reflow Soldering paster technique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1332663A (en) * 1998-03-11 2002-01-23 诺顿公司 Superabrasive wire saw and method for making the saw
CN1258580A (en) * 1999-12-27 2000-07-05 华南理工大学 Active solder and its preparation
CN107124835A (en) * 2017-05-25 2017-09-01 杭州晶志康电子科技有限公司 Reflow Soldering paster technique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Y.ZHONG ET AL.: ""Manufacturing and Microstructure of Cu Coated Diamonds/SnAgCu Composite Solder Bumps"", 《APPLIED MECHANICS AND MATERIALS》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113831148A (en) * 2021-08-16 2021-12-24 有研工程技术研究院有限公司 Titanium carbide-based ceramic and hard alloy welding round bar and preparation method thereof
CN113831148B (en) * 2021-08-16 2022-12-02 有研工程技术研究院有限公司 Titanium carbide-based ceramic and hard alloy welding round bar and preparation method thereof

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