CN103215484A - Silicide particle enhanced laser cladding nickel base alloy powder and preparation method thereof - Google Patents
Silicide particle enhanced laser cladding nickel base alloy powder and preparation method thereof Download PDFInfo
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- CN103215484A CN103215484A CN2012105523209A CN201210552320A CN103215484A CN 103215484 A CN103215484 A CN 103215484A CN 2012105523209 A CN2012105523209 A CN 2012105523209A CN 201210552320 A CN201210552320 A CN 201210552320A CN 103215484 A CN103215484 A CN 103215484A
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Abstract
The invention relates to silicide particle enhanced laser cladding nickel base alloy powder and a preparation method thereof. The silicide particle enhanced laser cladding nickel base alloy powder is characterized by comprising matrix alloy powder, silicide hard particles and a binder, wherein 50-98% of the matrix alloy powder, 1-45% of SiC or combination mixture powder comprising one or more than two materials selected from Si3N4, MoSi2 and CoSi2, and 1-5% of the binder are prepared into the combination powder. The preparation process steps comprise: preparing matrix alloy powder, adding silicide particles, adding a binder, carrying out stirring-ball milling, combining the powder, drying, crushing and screening. The silicide particle enhanced laser cladding nickel base alloy powder has characteristics of high hardness, high toughness, excellent wear resistance, and excellent corrosion resistance, and is particularly suitable for laser cladding of operation condition parts with characteristics of high impact and high wear resistance, wherein segregation generated due to high difference among specific gravities of various components during processes of storage, transportation and use can be effectively prevented.
Description
Technical field
The invention belongs to the nickel-base alloy technical field, relate to a kind of cladding alloy powder and preparation method thereof, particularly a kind of particularly a kind of silicide particle strengthens laser deposited nickel-base alloy powder end and preparation method thereof, and this silicide particle strengthens the laser deposited nickel-base alloy powder end and is applicable to laser melting coating HI high impact, high abrasion operating mode component.
Background technology
In the daily life and industrial production in modern times, the attrition and attack meeting of metallic substance appears at every field, be one of two big main modes of destroying component of machine, engineering component, corrosion will cause the mass consumption of mechanical component, and wearing and tearing then are to cause one of major reason of mechanical component inefficacy.They have also wasted ample resources in a large amount of metallic substance of loss, occupy very large proportion in financial loss.
The inefficacy of the engineering component that high temperature, burn into friction and wear cause occurs in the surface mostly, and this phenomenon is impelled the very big concern of Materials science worker to material surface, and impels the fast development of material surface modifying technology.People wish to make material surface obtain higher, specific use properties when material monolithic keeps enough toughness and intensity, as wear-resisting, anti-corrosion and anti-oxidant etc.
It is reported that at present, in whole world industrialized country, the energy that consumes accounts for 1/2nd of total energy in wearing and tearing, 60%～80% component of machine is arranged approximately owing to wear and tear and lost efficacy.A highly developed industrialized country, the annual financial loss that is caused because of wearing and tearing almost accounts for 1%～2% of total value of production in national economy.For example, the U.S. every year on average since the financial loss that causes of wearing and tearing up to 20,000,000,000 dollars; The financial loss that Britain is caused by wearing and tearing every year on average is above 51,500 ten thousand pounds.In China, the financial loss that is caused by wearing and tearing is equally also quite serious.Only according to department's rough Statistics such as oil, chemical industry, coal, electric power, agricultural machinery, just there is steel consumption up to millions of tons every year in China in wearing and tearing, and financial loss reaches 200～30,000,000,000 yuan more than.Thus, the effect of attrition of metallic substance the performance quality and the work-ing life of mechanical component, and then affects the competitive capacity of these mechanical component on market.
Simultaneously, the metallic corrosion problem also spreads all over the national economy every field, from top science The Application of Technology to industrial and agricultural production, the manufacturing that is applied to national defense industry from daily life, the place of every use metallic substance all exists etching problem in varying degrees.According to relevant expert's statistics, the whole world each divide half just to have one ton of steel to be corroded into iron rust.For example, 1975, the financial loss that U.S. every year is caused by corrosion accounted for 4.9% of total value of production in national economy up to 82,000,000,000 dollars; Nineteen ninety-five, the U.S. is because the financial loss straight line that corrosion causes rises to 3,000 hundred million dollars.Statistics shows, in a country that industry is flourishing, the financial loss that causes because of corrosion accounts for 2%～4% of total value of production in national economy, surpasses the summation of the loss that all natural disasteies such as floods, fire, earthquake and ancient measure of length, equal to 8 cun wind cause.Though China only is a developing country,, annual about 5,000 hundred million yuans, account for about 6% of Chinese national economy total output value because the loss that corrosion brings is also considerable.Only the financial loss that is caused by corrosion in oil and Sweet natural gas field every year is with regard to about 10,000,000,000 yuan, and coal-mining industry is about 55.6 hundred million yuan by the fund waste that corrosion causes every year, then nearly 1,700,000,000 yuan of the corrosion loss in power system every year.
Therefore, from the limited resources and the energy, modern industrial production requires component of machine to have enough wear and corrosion behaviors, can extremely work long hours under the rugged environment at high temperature, high loading etc., and the attrition and attack problem that therefore solves metal is extremely urgent.
The laser melting coating ceramic technology can metal is high wear-resisting, anti-corrosion, the high temperature resistant and anti-oxidation characteristics of obdurability, favorable manufacturability and stupalith excellence combine, being the surface strengthening technology of most worthy and competitive power, also is one of focus of laser melting and coating technique development.
Laser melting coating is the technology of emerging a, fast development, it is under the high-energy-density laser beam irradiation, the matrix surface skim melts simultaneously with the alloy that adds as required, forming thickness is 10～1000 μ m surface melting layers, rapid solidification is to satisfy the processing method that a certain property requires, be a new technology of multidisciplinary intersection such as material interaction and rapid solidification moulding in set laser heat fused, the molten bath, this technology obtains more careful research aspect surface treatment.
Because local surfaces is subjected to heat density big, spot diameter is little, and heated time is short, so the melting area is very little on the workpiece surface, it is few to pass to the workpiece internal heat, has very big thermograde in the melting area, and speed of cooling can reach 10
4～10
9℃/s.Just because of rapid solidification, give the characteristics that alloy is different from normal freezing.As the laser melting coating of one of surface modification means, be suitable for the top layer modification and the reparation of each metalloid.Cladding laser surfaces can keep former coating alloy composition (thinning ratio 5～8%), and only there is very limited mutual spreading area in the intersection at reflow zone and matrix, and this spreading area realizes that just the metallurgical binding of coat and matrix is necessary.It can be coated in high performance powdered alloy on the common material (workpiece), thereby obtains the top coat (as good coatings such as heat-resisting, anti-corrosion, wear-resisting, shock resistances) of excellent specific property.
Compare with traditional surface modification (thermospray, plasma spraying etc.) technology, it mainly contains following advantage: the interface is a metallurgical binding; Organize superfine; It is low that the cladding layer composition evenly reaches extent of dilution; Coating thickness is controlled; The heat distortion is little; Realize that easily constituency cladding and technological process easily realize automatization.In process for modifying surface, laser melting coating has become comparison active research field.
The laser surface coating technology is one of the advanced subject in the material surface engineering field that grows up of middle nineteen seventies, both at home and abroad just flourish.Along with the development and perfection of superpower laser and supporting technology, it progressively moves towards industrial application from laboratory study, will have great vitality in following material surface modifying field.Laser melting coating both can be used for the surface modification of traditional material, promoted the performance of material, can be used for the reparation of surface failure part again, so the available body material is very extensive, as carbon steel, steel alloy, cast iron and aluminium alloy, copper alloy, nickel base superalloy etc.In addition, the material scientific research personnel has also developed non-crystalline state and quasi crystal coating etc.At present, more to laser technology both at home and abroad at the study on the modification on traditional material surface, the research of high quality steel, high-temperature alloy surface modification also has report, yet the application laser melting coating is repaired the practical engineering application of some components of machine and is but awaited further popularization, major cause is that problems such as crackle, coating be inhomogeneous are often arranged in the laser cladding process, awaits the further research of scientific worker.
That the state of laser melting coating layer material generally has is Powdered, thread, paste etc.In addition also can be with sheet metal, sintered metal product, steel band and welding rod etc. as cladding material, wherein powdered alloy is most widely used in laser melting and coating technique.
Look actual the environment for use condition difference of workpiece, also different to the performance requriements of surface coating.The cladding alloy system mainly contains ferrous alloy, nickel-base alloy, cobalt-base alloy and composite alloy powder etc.Iron(-)base powder is suitable for the part of the local wear-resisting and easy deformation of requirement; Nickel-base alloy is suitable for that the requirement part is wear-resisting, the member of heat and corrosion resistant and thermal fatigue resistance, and required laser power density is than the summary height of cladding ferrous alloy; The cobalt-base alloy coating is suitable for the part of wear-resisting, the anti-corrosion and thermal fatigue resistance of requirement; Ceramic coating at high temperature has higher intensity, and Heat stability is good, and the chemical stability height is applicable to the part of wear-resisting, anti-corrosion, high temperature resistant and oxidation-resistance.
Wear-resistant coating is to study to such an extent that also be maximum a kind the earliest in the laser melting coating ceramic coating.Though Ni base, Co base, Fe base self-fluxing alloy itself just have good wear-resisting, anti-corrosion, resistance toheat, it is a lot of to utilize their laser cladding layer to carry out the research report of material surface strengthening.But under the serious condition of slip, gouging abrasion and abrasive wear, simple Ni base, Co base, the not competent service requirements of Fe base self-melting alloy.
Matrix material is a kind of novel surface strengthening engineering materials, metal and metal, metal and pottery, pottery and pottery etc., between the powdered alloy and the range of choice of the collocation between powdered alloy and the pottery very extensive.The various dystectic carbide, nitride, boride and the ceramic oxide particle that in the powdered alloy system of above-mentioned laser melting coating, add certain content have been carried out in recent years both at home and abroad for this reason, make cermet composite coating even pure ceramic coating, to improve the wear resistance of cladding layer.
Can prepare high performance composite coating although adopt matrix material to carry out laser melting coating, but at present domesticly still be in the breadboard research mostly, and its preparation technology adopts the WC powder of nickel-based self-fluxing alloy with certain content mixed in the laboratory, add saturated turps or homemade organic binder bond then, furnishing slip or paste, precoating is overlying on the workpiece, carries out laser melting coating or sintering then.The hard particles that it added is big, density is different with matrix metal, and the distribution of particle in cladding layer is often inhomogeneous, presents Gradient distribution usually; The wettability of added particulate material and matrix, stability, the coefficient of expansion and chemical reactivity etc. all cause the ununiformity of the microstructure and property of cladding layer.And prepared combination powder since each constituent element proportion differ greatly, thereby in storage, transportation and use and easily produce segregation.Can't carry out the commercialization market supply, not seeing as yet on market at present has particle to strengthen the merchandise sales of laser melting coating special powder.For above-mentioned reasons, do not see laser melting coating special combination powder so far as yet, thereby restricted the application of laser melting coating on high abrasion operating mode field.
Summary of the invention
The objective of the invention is to avoid above-mentioned deficiency of the prior art, develop and a kind ofly can satisfy that required a kind of silicide particle strengthens laser deposited nickel-base alloy powder end and preparation method thereof under the serious abrasive wear working condition of engineering machinery.
For achieving the above object, the present invention can and add that silicide particle strengthen the laser deposited nickel-base alloy powder end and corresponding technology of preparing scheme realizes by following basic design of chemical composition:
A kind of silicide particle provided by the present invention strengthens the laser deposited nickel-base alloy powder end to be made up of matrix alloy powder and silicide enhanced granule and binding agent, and its proportioning is: 50～98% matrix alloy powder, 1～45% SiC or Si
3N
4, MoSi
2, CoSi
2One of them or the combined hybrid body powder more than two kinds, 1～5% adhesive preparation become the combination powder; Wherein the chemical ingredients of matrix alloy and mass percent thereof are;
0.4～0.8%C, 2～3%Si, 1～3%B, 12～18%Cr, 6～8%Cu, 0.5～1%Sn, 10～15%Fe, 0.1～1.2%MgO, 0.2～2%CaF
2, CeO
2, Y
3O
2, La
2O
3One of them or the combination more than two kinds≤0.9%, Ni surplus and unavoidable impurities element;
Laser melting coating high-toughness wear-resistant Co-based alloy powder provided by the present invention and preparation method thereof, its step of preparation process is:
Matrix alloy powdered preparation → interpolation oxide particle → interpolation binding agent → stirring ball-milling → combination powder → drying → fragmentation → screening; Concrete processing step is as follows:
(1) matrix alloy preparation
The technical process of matrix alloy powdered preparation is: batching → melting → atomizing → drying → screening;
Batching: raw material is pure nickel, Graphite Powder 99, FeCr, FeB, FeSi, Cu, Sn, MgO, CaF
2, CeO
2, Y
3O
2, La
2O
3
Melting: the above-mentioned raw material for preparing is carried out melting in vacuum induction furnace or medium-frequency induction furnace, temperature of fusion is about 1250 ℃-1350 ℃, control carbon content reach requirement, the stokehold be adjusted to branch qualified after, 1200～1280 ℃ of tapping temperatures;
Atomizing: adopt indifferent gas or hydraulic atomized, atomizing aperture 5～10mm, atomizing pressure, 10～14MPa;
Dry: equipment used is the far infrared drying machine, and bake out temperature is 220 ℃～280 ℃;
Screening: sifting out size range by powder shifter is that+150 orders～-350 purpose powder are as finished powder;
(2) add silicide particle
Choose size range and be+150 orders～commercially available SiC of-350 purposes or Si
3N
4, MoSi
2, CoSi
2One of them or the combined hybrid body powder more than two kinds are as strengthening hard particles;
(3) add binding agent
Adopt resol, Resins, epoxy or the water glass of heat curing-type to make binding agent, add pimelinketone or methanol solvate, make it be dissolved into resin solution;
(4) stirring ball-milling
With matrix alloy powder and SiC or the Si for preparing
3N
4, MoSi
2, CoSi
2After one of them or the combined hybrid body powder more than two kinds and binding agent are configured according to required ratio, pour in the agitating ball mill, make it be dissolved into resin solution in pimelinketone or methanol solvate the resin dissolves of required dosage; Pour into after stirring in the powder mix of required processing in the ball mill, join in the agitating ball mill after the abrading-ball of sphere diameter 10～20mm prepared according to 2: 1～3: 1 ratio of grinding media to material, the starting agitating ball mill, abundant stirring ball-milling through 5～60 hours, each component of powder mix and resin liquid all are evenly distributed, each constituent element powder particle is wrapped up, and bond together, be prepared into the combination powder;
(5) drying
The combination powder that ball milling is good is poured out from ball mill, then through 150 ℃～200 ℃ dryings;
(6) broken and screening
The combination powder that drying is good carries out fragmentation, by powder shifter sift out size range for+150 orders～-350 purpose powder respectively as finished powder, promptly get required composition, desired particle size grade and don't the combination powder of solute segregation can take place.
Beneficial effect
Compared with prior art, the present invention has following advantage:
1) silicide particle of the present invention strengthens the laser melting coating existing high toughness of powdered alloy, and high hardness has excellent abrasive and solidity to corrosion again, and its wear-resistant material abradability can be 10 times of rich chromium cast iron, and its solidity to corrosion and 1Cr18Ni9Ti are suitable.Be applicable to laser melting coating HI high impact, high abrasion operating mode component.
2) silicide particle of the present invention strengthens the laser melting and coating process performance that the laser deposited nickel-base alloy powder end has excellence, and the laser cladding layer after handling has advantages such as flawless, pore-free, inclusion-free, dense structure, grain refining.
3) each constituent element powder particle can be wrapped up through the silicide particle enhancing laser deposited nickel-base alloy powder end of prepared of the present invention, and bond together; Have enough cohesive strengths, can prevent effectively that composition powder from producing segregation owing to each constituent element proportion differs greatly in storage, transportation and use.
4) silicide particle of the present invention strengthens the laser deposited nickel-base alloy powder end, be specially adapted to the laser melting coating reparation of the alloy workpiece of high surfaces hardness, toughness and high-wearing feature, gained cladding alloy powder technology performance is good, under the condition that need not preheating and subsequent heat treatment, can obtain the flawless cladding alloy layer of the big thickness of big area, cladding layer intensity, hardness and wear resistance height, plasticity and toughness are good, and reduce significantly with the powdered alloy cost than existing most of used for hot spraying self-fluxing alloy powders and existing most of laser melting coatings.Can reduce the consumption of strategic rare elements, significantly reduce the laser melting coating cost.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment one
A kind of silicide particle strengthens laser deposited nickel-base alloy powder end and preparation method thereof, this silicide particle strengthens the laser deposited nickel-base alloy powder end and is made up of matrix alloy powder and silicide particle and binding agent, its proportioning is: 60% matrix alloy powder, 37% SiC, 3% phenolic resin adhesive is prepared into the combination powder; Wherein the chemical ingredients of matrix alloy and mass percent thereof are;
0.5%C, 2%Si, 1.5%B, 14%Cr, 6%Cu, 0.5%Sn, 13%Fe, 0.1%MgO, 0.5%CaF
2, 0.2%CeO
2, 0.2%Y
3O
2, 0.2%La
2O
3, the Ni surplus.
Its manufacturing technology steps:
Matrix alloy powdered preparation → interpolation silicide particle → interpolation binding agent → stirring ball-milling → combination powder → drying → fragmentation → screening; Concrete processing step is as follows:
(1) matrix alloy preparation
The technical process of matrix alloy powdered preparation is: batching → melting → atomizing → drying → screening;
Batching: raw material is pure nickel, Graphite Powder 99, FeCr, FeB, FeSi, Cu, Sn, CaF
2, CeO
2, Y
3O
2, La
2O
3By above-mentioned weight percent proportioning, be ready to make the starting material of matrix metal powder.
Melting: start the vacuum induction intermediate frequency furnace, by the requirement of melting technology, put into metal and begin melting, the metal of general easy oxidation was put in the later stage of fusing.Temperature of fusion is controlled at 1250-1300 ℃ approximately; After the metal of this stove all melts in stove, carry out slag making, remove the impurity in the molten metal, enter refining period then and carry out refining, add reductor before the cast and carry out deoxidation, the control carbon content reaches requirement, the stokehold be adjusted to branch qualified after, tapping temperature is controlled at 1200～1250 ℃.
Atomizing: the alloy liquid that melting is qualified is poured in the cone bottom pour ladle, begin to carry out the atomizing of metal-powder, open high-pressure inert gas, will be from the high pressure gas of gas cylinder as air knife, after melting the constraint of leting slip a remark that the back via hole diameter is 5～10mm, become the molten metal bath stream of a thread to cut atomizing, atomizing pressure 10～14MPa, the molten drop that the metal atomization poling is small, final set becomes powdered alloy.Metal-powder after solidifying, still quite easily oxidation when high temperature so must allow its cool to room temperature under the environment of anaerobic or hypoxemia, could reduce the oxygen level of powder.Normal nebulisation time is about 5～20 minutes.
Dry: equipment used is the far infrared drying machine, about 250 ℃ of bake out temperature, and dried metal-powder, the chemical examination of Chemical Composition is carried out in sampling earlier, changes next procedure over to after qualified.
Screening: sifting out size range by powder shifter is that+150 orders～-350 purpose powder are as finished powder.
(2) add silicide particle
Choosing size range is that the commercially available SiC powder of-250 purposes is as enhanced granule;
(3) add binding agent
Adopt the resol of heat curing-type to make binding agent, add cyclohexanone solvent, make it be dissolved into resin solution;
(4) stirring ball-milling
After the matrix alloy powder for preparing and SiC powder and binding agent be configured according to above-mentioned ratio, pour in the agitating ball mill, the resol of 3% heat curing-type is dissolved in makes it be dissolved into resin solution in the cyclohexanone solvent, pour into after stirring in the powder mix of the required processing in the ball mill, join in the agitating ball mill after the abrading-ball of sphere diameter 12mm prepared according to 2: 1 ratio of grinding media to material, the starting agitating ball mill, abundant stirring ball-milling through 25 hours, each component of powder mix and resin liquid all are evenly distributed, each constituent element powder particle is wrapped up, and bond together, be prepared into the combination powder;
(5) drying
The combination powder that ball milling is good is poured out from ball mill, then through 180 ℃ of dryings;
(6) broken and screening
The combination powder that drying is good carries out fragmentation, by powder shifter sift out size range for+150 orders～-350 purpose powder as finished powder, promptly get required composition, desired particle size grade and don't the combination powder of solute segregation can take place.
Requirement by the user is sieved, the packing warehouse-in.
Embodiment two
A kind of silicide particle strengthens laser deposited nickel-base alloy powder end and preparation method thereof, this silicide particle strengthens the laser deposited nickel-base alloy powder end and is made up of matrix alloy powder and silicide particle and binding agent, its proportioning is: 68% matrix alloy powder, 30% Si
3N
4, 2% epoxy adhesive is prepared into the combination powder; Wherein the chemical ingredients of matrix alloy and mass percent thereof are;
0.6%C, 3%Si, 2.5%B, 16%Cr, 7%Cu, 1%Sn, 15%Fe, 0.15%MgO, 0.9%CaF
2, 0.25%CeO
2, 0.25%Y
3O
2, 0.25%La
2O
3, the Ni surplus.
(2) add silicide particle
Choose size range and be the commercially available Si of-300 purposes
3N
4Powder is as strengthening hard particles;
(3) add binding agent
Adopt the Resins, epoxy of heat curing-type to make binding agent, add methanol solvate, make it be dissolved into resin solution;
(4) stirring ball-milling
With matrix alloy powder and the Si for preparing
3N
4After powder and binding agent are configured according to above-mentioned ratio, pour in the agitating ball mill, the resol of 2% heat curing-type is dissolved in makes it be dissolved into resin solution in the methanol solvate, pour into after stirring in the powder mix of the required processing in the ball mill, join in the agitating ball mill after the abrading-ball of sphere diameter 15mm prepared according to 3: 1 ratio of grinding media to material, abundant stirring ball-milling through 15 hours, each component of powder mix and resin liquid all are evenly distributed, each constituent element powder particle is wrapped up, and bond together, be prepared into the combination powder;
Its preparation method is identical with embodiment one.
Embodiment three
A kind of silicide particle strengthens laser deposited nickel-base alloy powder end and preparation method thereof, this silicide particle strengthens the laser deposited nickel-base alloy powder end and is made up of matrix alloy powder and silicide particle and binding agent, its proportioning is: 68% matrix alloy powder, 30% MoSi
2Powder, 2% epoxy adhesive is prepared into the combination powder; Wherein the chemical ingredients of matrix alloy and mass percent thereof are;
0.4%C, 2.8%Si, 2.0%B, 18%Cr, 8%Cu, 0.7%Sn, 10%Fe, 0.2%MgO, 1.5%CaF
2, 0.3%CeO
2, 0.3%Y
3O
2, 0.3%La
2O
3, the Ni surplus.
(2) add silicide particle
Choose size range and be the commercially available MoSi of-200 purposes
2Powder is as enhanced granule;
(3) add binding agent
Adopt water glass to make binding agent, add methanol solvate;
(4) stirring ball-milling
With matrix alloy powder and the MoSi for preparing
2After powder and binding agent are configured according to above-mentioned ratio, pour in the agitating ball mill, 2.5% water glass is incorporated in the methanol solvate, pour into after stirring in the powder mix of the required processing in the ball mill, join in the agitating ball mill after the abrading-ball of sphere diameter 18mm prepared according to 2.8: 1 ratio of grinding media to material, the starting agitating ball mill, abundant stirring ball-milling through 32 hours, each component of powder mix and water glass liquid all are evenly distributed, each constituent element powder particle is wrapped up, and bond together, be prepared into the combination powder;
Its preparation method is identical with embodiment one.
The silicide particle of the above composition that the present invention proposes strengthens the laser deposited nickel-base alloy powder end, be specially adapted to the laser melting coating on corresponding product surface, the hardness height of its cladding layer, wear resistance is good, the tendency that produces cracking and other overlay defective is little, can prepare big thickness cladding layer, and laser melting and coating process is functional, use the cost of cladding alloy powder low than now, can be suitable for application need widely.Material of the present invention is applied has remarkable economical and social benefit.
Claims (1)
1. a silicide particle strengthens laser deposited nickel-base alloy powder end and preparation method thereof, it is characterized in that: silicide particle strengthens the laser deposited nickel-base alloy powder end and is made up of matrix alloy powder and silicide enhanced granule and binding agent, its proportioning is: 50～98% matrix alloy powder, 1～45% SiC or Si
3N
4, MoSi
2, CoSi
2One of them or the combined hybrid body powder more than two kinds, 1～5% adhesive preparation become the combination powder; Wherein the chemical ingredients of matrix alloy and mass percent thereof are; 0.4～0.8%C, 2～3%Si, 1～3%B, 12～18%Cr, 6～8%Cu, 0.5～1%Sn, 10～15%Fe, 0.1～1.2%MgO, 0.2～2%CaF
2, CeO
2, Y
3O
2, La
2O
3One of them or the combination more than two kinds≤0.9%, Ni surplus and unavoidable impurities element; Its step of preparation process is:
Matrix alloy powdered preparation → interpolation oxide particle → interpolation binding agent → stirring ball-milling → combination powder → drying → fragmentation → screening; Concrete processing step is as follows:
(1) matrix alloy preparation
The technical process of matrix alloy powdered preparation is: batching → melting → atomizing → drying → screening;
Batching: raw material is pure nickel, Graphite Powder 99, FeCr, FeB, FeSi, Cu, Sn, MgO, CaF
2, CeO
2, Y
3O
2, La
2O
3
Melting: the above-mentioned raw material for preparing is carried out melting in vacuum induction furnace or medium-frequency induction furnace, temperature of fusion is about 1250 ℃-1350 ℃, control carbon content reach requirement, the stokehold be adjusted to branch qualified after, 1200～1280 ℃ of tapping temperatures;
Atomizing: adopt indifferent gas or hydraulic atomized, atomizing aperture 5～10mm, atomizing pressure, 10～14MPa;
Dry: equipment used is the far infrared drying machine, and bake out temperature is 220 ℃～280 ℃;
Screening: sifting out size range by powder shifter is that+150 orders～-350 purpose powder are as finished powder;
(2) add silicide particle
Choose size range and be+150 orders～commercially available SiC of-350 purposes or Si
3N
4, MoSi
2, CoSi
2One of them or the combined hybrid body powder more than two kinds are as strengthening hard particles;
(3) add binding agent
Adopt resol, Resins, epoxy or the water glass of heat curing-type to make binding agent, add pimelinketone or methanol solvate, make it be dissolved into resin solution;
(4) stirring ball-milling
With matrix alloy powder and SiC or the Si for preparing
3N
4, MoSi
2, CoSi
2After one of them or the combined hybrid body powder more than two kinds and binding agent are configured according to required ratio, pour in the agitating ball mill, make it be dissolved into resin solution in pimelinketone or methanol solvate the resin dissolves of required dosage; Pour into after stirring in the powder mix of required processing in the ball mill, join in the agitating ball mill after the abrading-ball of sphere diameter 10～20mm prepared according to 2: 1～3: 1 ratio of grinding media to material, the starting agitating ball mill, abundant stirring ball-milling through 5～60 hours, each component of powder mix and resin liquid all are evenly distributed, each constituent element powder particle is wrapped up, and bond together, be prepared into the combination powder;
(5) drying
The combination powder that ball milling is good is poured out from ball mill, then through 150 ℃～200 ℃ dryings;
(6) broken and screening
The combination powder that drying is good carries out fragmentation, by powder shifter sift out size range for+150 orders～-350 purpose powder respectively as finished powder, promptly get required composition, desired particle size grade and don't the combination powder of solute segregation can take place.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540802A (en) * | 2013-10-17 | 2014-01-29 | 江苏盛伟模具材料有限公司 | Micro-nano silicide particle reinforced laser cladding nickel-based alloy powder and preparation method thereof |
| CN103602856A (en) * | 2013-11-20 | 2014-02-26 | 张翀昊 | Special nickel base alloy powder for continuous wave fiber laser cladding |
| CN103602857A (en) * | 2013-11-20 | 2014-02-26 | 牛志宇 | Special alloy powder for continuous wave fiber laser cladding |
| CN103602948A (en) * | 2013-11-20 | 2014-02-26 | 柳岸敏 | Special nickel base metal ceramic alloy powder for continuous wave fiber laser cladding |
| CN105568017A (en) * | 2016-01-06 | 2016-05-11 | 安徽祈艾特电子科技股份有限公司 | Nanoscale molybdenum disilicide modified Mg-Al-Si based magnesium alloy material for casting automobile parts and preparation method thereof |
| CN106825548A (en) * | 2017-03-31 | 2017-06-13 | 安徽再制造工程设计中心有限公司 | The reparation of paper machine mill nickel-based self-fluxing alloy powder and its application method |
| CN107267977A (en) * | 2017-06-07 | 2017-10-20 | 燕山大学 | A kind of laser melting coating reproducing method of vehicle track plate |
| CN108149242A (en) * | 2017-12-21 | 2018-06-12 | 甘肃兰煤机械制造有限公司 | A kind of restorative procedure of the waste and old mechanical wear component of large-scale mine |
| CN109954885A (en) * | 2017-12-25 | 2019-07-02 | 中国石油化工股份有限公司 | A kind of increasing material manufacturing composite powder and preparation method thereof |
| CN111349929A (en) * | 2020-03-18 | 2020-06-30 | 南京工业职业技术学院 | High-strength wear-resistant rotary blade for rotary cultivator and preparation method thereof |
| CN112919475A (en) * | 2021-03-10 | 2021-06-08 | 南京理工大学 | Method for synthesizing molybdenum disilicide powder |
| CN114107742A (en) * | 2021-11-09 | 2022-03-01 | 浙江吉利控股集团有限公司 | Nickel-based coating and method for forming nickel-based coating on surface of part |
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Cited By (14)
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| CN103540802A (en) * | 2013-10-17 | 2014-01-29 | 江苏盛伟模具材料有限公司 | Micro-nano silicide particle reinforced laser cladding nickel-based alloy powder and preparation method thereof |
| CN103602856A (en) * | 2013-11-20 | 2014-02-26 | 张翀昊 | Special nickel base alloy powder for continuous wave fiber laser cladding |
| CN103602857A (en) * | 2013-11-20 | 2014-02-26 | 牛志宇 | Special alloy powder for continuous wave fiber laser cladding |
| CN103602948A (en) * | 2013-11-20 | 2014-02-26 | 柳岸敏 | Special nickel base metal ceramic alloy powder for continuous wave fiber laser cladding |
| CN103602856B (en) * | 2013-11-20 | 2015-10-28 | 张翀昊 | Be exclusively used in the Co-based alloy powder of continuous wave optical-fiber laser cladding |
| CN103602857B (en) * | 2013-11-20 | 2015-10-28 | 牛志宇 | Be exclusively used in the powdered alloy of continuous wave optical-fiber laser cladding |
| CN105568017A (en) * | 2016-01-06 | 2016-05-11 | 安徽祈艾特电子科技股份有限公司 | Nanoscale molybdenum disilicide modified Mg-Al-Si based magnesium alloy material for casting automobile parts and preparation method thereof |
| CN106825548A (en) * | 2017-03-31 | 2017-06-13 | 安徽再制造工程设计中心有限公司 | The reparation of paper machine mill nickel-based self-fluxing alloy powder and its application method |
| CN107267977A (en) * | 2017-06-07 | 2017-10-20 | 燕山大学 | A kind of laser melting coating reproducing method of vehicle track plate |
| CN108149242A (en) * | 2017-12-21 | 2018-06-12 | 甘肃兰煤机械制造有限公司 | A kind of restorative procedure of the waste and old mechanical wear component of large-scale mine |
| CN109954885A (en) * | 2017-12-25 | 2019-07-02 | 中国石油化工股份有限公司 | A kind of increasing material manufacturing composite powder and preparation method thereof |
| CN111349929A (en) * | 2020-03-18 | 2020-06-30 | 南京工业职业技术学院 | High-strength wear-resistant rotary blade for rotary cultivator and preparation method thereof |
| CN112919475A (en) * | 2021-03-10 | 2021-06-08 | 南京理工大学 | Method for synthesizing molybdenum disilicide powder |
| CN114107742A (en) * | 2021-11-09 | 2022-03-01 | 浙江吉利控股集团有限公司 | Nickel-based coating and method for forming nickel-based coating on surface of part |
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