CN107127340A - A kind of quick forming method of cermet part - Google Patents

A kind of quick forming method of cermet part Download PDF

Info

Publication number
CN107127340A
CN107127340A CN201710228920.2A CN201710228920A CN107127340A CN 107127340 A CN107127340 A CN 107127340A CN 201710228920 A CN201710228920 A CN 201710228920A CN 107127340 A CN107127340 A CN 107127340A
Authority
CN
China
Prior art keywords
powder
cermet
dispersant
mixed
forming method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710228920.2A
Other languages
Chinese (zh)
Inventor
赵晓明
许海嫚
徐天文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Bright Laser Technologies Co Ltd
Original Assignee
Xian Bright Laser Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Bright Laser Technologies Co Ltd filed Critical Xian Bright Laser Technologies Co Ltd
Priority to CN201710228920.2A priority Critical patent/CN107127340A/en
Publication of CN107127340A publication Critical patent/CN107127340A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10—Formation of a green body
    • B22F10/12—Formation of a green body by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B22F1/107—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing organic material comprising solvents, e.g. for slip casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention discloses a kind of quick forming method of cermet part, metal dust and ceramic powders are mixed, are added to after adding sintering aid and dispersant, ball milling in photo-curing monomer solvent, dispersant, light trigger, defoamer are added, it is well mixed to obtain slurry；The slurry prepared is utilized into ultraviolet beam, according to the threedimensional model pointwise of part, solidification printing is successively carried out, obtains the cermet base substrate of solidified forming；Last base substrate, which is put into sintering furnace, carries out degreasing and sintering, obtains cermet.The inventive method has broken away from the limitation of conventional machining part shape, shortens processing duration, cost-effective.In combination with specific degreasing, sintering process step, it is ensured that formation of parts has high consistency, the comprehensive mechanical property of formation of parts is improved.

Description

A kind of quick forming method of cermet part
Technical field
The invention belongs to technical field of material, and in particular to a kind of quick forming method of cermet part.
Background technology
Cermet is the composite for integrating metal and ceramic performance, the high temperature resistant with ceramic material, high-strength Degree and inoxidizability, have both the obdurability and flexing resistance of metal material, these excellent performances make cermet in gas turbine The side such as blade, engine spray pipe, internal combustion engine valve seat, diel, temperature element, anti-friction bearing and high speed cutting tool Face extensive use.
At present, the manufacturing process of cermet part mainly has powder metallurgic method, using powder as raw material, by suppressing base Body, with reference to sintering technology, produces the manufactured part of cermet material.
But, tradition prepares the method that cermet mainly uses powder metallurgy, single generally directed to small-scale, structure Part.For baroque part, it is difficult to use traditional dies once-forming, it is necessary to first prepare particular mold, then by pouring The compound of multiple process such as casting, machining are formed, and trigger the problems such as part manufacturing cost is high, activity time is long, and uncomfortable Close short-term batch production.
The content of the invention
It is an object of the invention to provide a kind of quick forming method of cermet part, existing preparation method is solved not The problem of being produced suitable for small lot and complicated shape metal ceramic part.
The technical solution adopted in the present invention is, a kind of quick forming method of cermet part part, including following Step：
Metal dust and ceramic powders are mixed, solid mixed-powder is obtained, adds sintering aid and dispersant, is mixed After closing uniformly, ball milling, dissociation are carried out to the solid mixed-powder by ball mill；Then by the good solid mixed-powder of ball milling Add in photo-curing monomer, add light trigger, dispersant, defoamer, stir, obtain slurry；
By the slurry mixed add uv equipment, using ultraviolet beam, according to threedimensional model successively or by Cermet part green compact are made in point printing, solidification accumulation；
Low-temperature defatted and sintering is carried out to the cermet part green compact of the solidification stack shaping by sintering furnace, obtained Cermet part.
Preferably, cermet is oxide base cermet, carbide-base ceramics or boride-base cerment.
Preferably, sintering aid is vanadium carbide, chromium carbide, ramet, niobium carbide or hafnium carbide, and the quality of sintering aid is The 0.5%~3% of solid mixed-powder quality.Vanadium carbide, chromium carbide, ramet, niobium carbide or hafnium carbide can effectively drop The interface energy of low particle, suppresses the fast growth of crystal grain.
Preferably, photo-curing monomer is epoxy acrylate, urethane acrylate, polyester propyl ether acrylate, propylene Esterification polyacrylate, glycidol base class, glycidol ethers, glycidol esters, alicyclic epoxy, polyurethanes ring It is any in oxygen, unsaturated double-bond oxidation category epoxy, aromatic epoxies, the quality of photo-curing monomer and the matter of solid mixed-powder Amount is than being 3:2~17:3.This kind of photo-curing monomer solidification crosslink density is higher, is favorably improved alloy property, and curing rate It hurry up, the time reached needed for being fully cured can be reduced.
Preferably, dispersant be poly- sodium propionate, polypropylene, polystyrene, quaternary ammonium acetate, hexenyl bis-stearamides, It is any in glyceryl tristearate, the dispersant gross mass added twice account for solid mixed-powder gross mass 0.5%~ 5%, during ball milling add dispersant gross mass 0.3%~3%, slurry mix when add dispersant gross mass 0.2%~ 2%.Because the particle diameter of solid powder is smaller, it is easy to cluster, in order to fully dissociate solid powder, dispersant is introduced.It is mixed in slurry During conjunction, for more fully dissolved solid powder, dispersant is introduced.
Preferably, light trigger is salt compounded of iodine, sulfosalt, diazol, styrax ethers, acetophenones, benzil class, two It is any one or more in Benzophenone/tertiary amine, α-hydroxyl cycloalkyl benzophenone class, α-amine alkylbenzene ketone, thioxanthone/tertiary amines Mixture, the quality of light trigger is the 0.5%~2% of the photo-curing monomer quality.Above-mentioned free radical photo-initiation/sun from Its launching efficiency of sub-light initiator is high, improves curing efficiency.
Preferably, defoamer is ethanol, n-butanol, tributyl phosphate, metallic soap, polyethers, polyacrylate, poly dimethyl Any in silicone oil, the content of defoamer is the 0.5%~1% of stock quality.Above-mentioned defoamer can effectively reduce bubble week The tension force enclosed, promotes bubble coalescence into big bubble, final bubbles burst disappears.
Further, when adding the light trigger, dispersant, defoamer, diluent is additionally added, the diluent is third Ketone, MEK, cyclohexanone, toluene or styrene, the quality of the diluent are the 0.4%~0.9% of the stock quality.Plus Slurry viscosity can be reduced by entering diluent, prevent the liquid level out-of-flatness caused by slurry viscosity is excessive in successively banking process.
Preferably, when solid mixed-powder adds photo-curing monomer, the solid mixed-powder and photo-curing monomer are entered Row preheating, preheating temperature improves the solubility of solid powder in the slurry between 40 DEG C~70 DEG C, helps to increase solid powder The content at end, improves the quality of formation of parts.
Preferably, skimming temp is 250 DEG C~500 DEG C, and soaking time is 2h~4h.The skimming temp and time can protect Card resin is sufficiently removed.
The beneficial effects of the invention are as follows photocuring of the present invention triggers the technology of solidification using resin sensing ultraviolet light, right Threedimensional model is selectively successively accumulated, and has broken away from the limitation of conventional machining part shape, and can effectively realize design of part can Plasticity and complexity, it is to avoid the various process composite manufacturings of traditional processing cause manufacturing cost it is high, it is long in time limit the problems such as.Tie simultaneously Close specific degreasing, sintering process step, it is ensured that formation of parts has high consistency, improve the synthesis mechanical property of formation of parts Energy.This method process stabilizing, can be produced in batches.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the present invention is not limited to these realities Apply mode.
The quick forming method of the cermet part of the present invention is mainly concerned with Ti (C, N)-Ni-Mo systems and WC-Co systems Material, specifically implements according to following steps：
Step 1, the preparation of slurry
(1) ball milling
It is 0.1 μm~1 μm of metal dust and ceramic powders mixing to choose particle, obtains solid powder, adds sintering Auxiliary agent, sintering aid is vanadium carbide (VC), chromium carbide (Cr3C2), ramet (TaC), niobium carbide (NbC), hafnium carbide (HfC) it One or mixture, its content is the 0.5%~3% of solid powder quality, adds appropriate dispersant, is well mixed, fully After ground dissociation solid powder, it is put into ball mill and carries out ball milling, dissociation.
(2) prepared by slurry
The good mixed-powder of ball milling is added in photo-curing monomer, appropriate dispersant is added, solid is made to greatest extent Powder is added in monomer, and adds light trigger, defoamer, diluent under conditions of lucifuge, is stirred, is starched Material.Need to be preheated in slurry mixed process, preheating temperature is between 40 DEG C~70 DEG C.
Wherein, photo-curing monomer mainly has one or more mixing in esters of acrylic acid oligomer and Epoxy oligomer Thing, such as epoxy acrylate, urethane acrylate, polyester propyl ether acrylate, acroleic acid esterification polyacrylate, shrink sweet Oil base class, glycidol ethers, glycidol esters, alicyclic epoxy, polyurethanes epoxy, unsaturated double-bond oxidation category ring The mass ratio of oxygen, aromatic epoxies etc., its quality and solid powder is 3:2~17:3.Dispersant mainly includes poly- sodium propionate, gathered Propylene, polystyrene, quaternary ammonium acetate, hexenyl bis-stearamides, glyceryl tristearate, the dispersant phase added twice Together, gross mass, which has altogether, accounts for the 0.5%~5% of solid powder gross mass, and addition during ball milling accounts for solid powder gross mass 0.3%~3%, addition when slurry is mixed accounts for the 0.2%~2% of solid powder gross mass.Light trigger is mainly included certainly By base light trigger and cation base light trigger, such as salt compounded of iodine, sulfosalt, diazol, styrax ethers, acetophenones, benzene The one kind such as even acyl class, benzophenone/tertiary amine, α-hydroxyl cycloalkyl benzophenone class, α-amine alkylbenzene ketone, thioxanthone/tertiary amines Or a variety of mixtures, its quality is the 0.5%~2% of monomer mass.Defoamer mainly chooses ethanol, n-butanol, tricresyl phosphate Butyl ester, metallic soap, polyethers, polyacrylate, polydimethyl siloxane fluid etc., its content are the 0.5%~1% of stock quality.Dilution Agent is acetone, MEK, cyclohexanone, toluene or styrene, and its content is the 0.4%~0.9% of stock quality.
Step 2, prepared by green compact
The slurry mixed is added into uv equipment, using ultraviolet beam, passes through face exposure or spot scan mode, layer Thickness be 30~70 μm, according to threedimensional model successively or pointwise printing, accumulation cermet part green compact are made.
Step 3, post-process
Solidified forming green compact are the mixtures of organic binder bond and part, made green compact are put into after being carried out in sintering furnace and located Reason, mainly includes degreasing and sintering process.Low-temperature defatted removal binding agent is first used, then is sintered, densification, property is obtained The excellent cermet part of energy.
Skimming temp is determined according to thermogravimetric (TG) curve, chooses mass change more serious temperature range as de- Fat temperature, is 250 DEG C~500 DEG C.To ensure the completeness of skimming processes, soaking time is 2h~4h.To reduce temperature-rise period Influence to blank performance, select gradient type heating mode, before skimming temp is reached heating rate control 5 DEG C/min with On, close to skimming temp, heating rate is reduced to 2 DEG C/below min.
Degreasing temperature-rise period is specially：100 DEG C~200 DEG C are warming up to 5 DEG C/min~10 DEG C/min speed, 1h is incubated ~1.5h, 250 DEG C~500 DEG C are warming up to 0.5 DEG C/min~2 DEG C/min, carry out degreasing, and soaking time is 2h~4h.
During the entire process of cermet shaping, it should which strict control oxygen content is no more than 100ppm, on the one hand because Free radical in oxygen meeting curing system is reacted, and slows down solidification rate, and on the other hand, oxygen can be aoxidized with solid powder, Influence part performance.
Embodiment 1
A kind of preparation method of WC-Co parts, specifically includes following steps：
1. it is prepared by raw material
Choose tungsten carbide (WC) powder 800g, powder size be located at 0.1 μm~1 μm, d50=0.7 μm, choose cobalt (Co) powder Last 120g, powder size be located at 0.2 μm~0.8 μm, d50=0.6 μm.Choose 10g VC powder and Cr3C2Powder, mixed proportion For 1:2,20g quaternary ammonium acetate, VC powder, WC powder and Co powder are mixed, and mixed powder is put down with dispersant It is divided into three parts, takes its portion to be put into ball mill, carry out ball milling, the time is 60min, and residual powder is sequentially added, mixing is equal It is even, often increase a powder, Ball-milling Time increase 60min.
Choose 200g urethane acrylate and epoxy acrylate monomer mixture, mixed proportion (1:1), choose 13g quaternary ammonium acetate dispersant, urethane acrylate and epoxy acrylate are gradually added to by solid powder and dispersant In mixture, uniform mixing., it is necessary to be heated during slurry mixing is carried out, the temperature of heating is 50 DEG C.In darkroom In, add 4g benzoin dimethylether light trigger, mixing.In whole slurry mixed process, constantly it is stirred, until slurry It is well mixed.In order to eliminate the bubble that slurry is produced in mixed process due to stirring, 9g n-butanol defoamer is added.
2. it is prepared by green compact
Slurry is added in uv equipment, using controllable ultraviolet beam, wavelength is 253nm, is exposed using face Mode, adjusting parameter, thickness is 30 μm, according to 3D printing model, successively solidifies, part green compact are made.
3. post processing
Part green compact room temperature is entered into stove, skimming temp is 400 DEG C, and 200 DEG C, insulation are warming up to 10 DEG C/min speed 1h, 300 DEG C are warming up to 2 DEG C/min, and 400 DEG C are warming up to 0.5 DEG C/min, carry out degreasing, soaking time is 3h.
Again under conditions of 1400 DEG C, 6MPa, soaking time are 1.5h, high temperature insostatic pressing (HIP) is carried out, high fine and close, high intensity is obtained WC-Co parts.Heating uses staged heating mode, is warming up to 800 DEG C with 15 DEG C/min, 1000 are warming up to 8 DEG C/min DEG C, 1h is incubated, 1300 DEG C/min is warming up to 2 DEG C/min, 1400 DEG C are warming up to 0.5 DEG C/min, pressure is 6MPa, is incubated WC-Co parts are obtained after 1.5h, cooling.
Embodiment 2
A kind of preparation method of WC-Co parts, specifically includes following steps：
1. it is prepared by raw material
Choose tungsten carbide (WC) powder 700g, powder size be located at 0.1 μm~1 μm, d50=0.7 μm, choose cobalt (Co) powder Last 150g, powder size be located at 0.2 μm~0.8 μm, d50=0.6 μm.7.0g VC powder is chosen, 15g quaternary ammonium acetate will VC powder, WC powder and the mixing of Co powder, mixed powder are bisected into three parts with dispersant, take its portion to be put into ball milling In machine, ball milling is carried out, the time is 60min, and residual powder is sequentially added, be well mixed, often increase a powder, Ball-milling Time Increase 60min.
Choose 250g urethane acrylate and phenyl glycidyl ether monomer mixture, mixed proportion (1:1), choose 9g quaternary ammonium acetate dispersant, is gradually added to urethane acrylate by solid powder and dispersant and is mixed with epoxy acrylate In compound, uniform mixing., it is necessary to be heated during slurry mixing is carried out, the temperature of heating is 60 DEG C.In darkroom In, add 4g benzoin dimethylether and azo-bis-iso-butyl mixing light trigger, mixed proportion 1:1, add 9g styrene Diluent.In whole slurry mixed process, constantly it is stirred, until slurry is well mixed.Mixed to eliminate slurry The bubble produced in journey due to stirring, adds 8g n-butanol defoamer.
2. it is prepared by green compact
Slurry is added in uv equipment, using controllable ultraviolet beam, wavelength is 250nm, is exposed using face Mode, adjusting parameter, it is 40 μm to set thickness, according to 3D printing model, successively solidifies, part green compact are made.
3. post processing
Part green compact room temperature is put into sintering furnace, skimming temp is 400 DEG C, and 200 are warming up to 10 DEG C/min speed DEG C, 1h is incubated, 300 DEG C are warming up to 1 DEG C/min, 400 DEG C are warming up to 0.3 DEG C/min, degreasing is carried out, soaking time is 3h.
Again under conditions of 1350 DEG C, 8MPa, soaking time are 1.5h, high temperature insostatic pressing (HIP) is carried out, high fine and close, high intensity is obtained WC-Co parts.Heating uses staged heating mode, is warming up to 800 DEG C with 13 DEG C/min, 1000 are warming up to 5 DEG C/min DEG C, 1h is incubated, 1250 DEG C/min is warming up to 2 DEG C/min, 1350 DEG C are warming up to 0.1 DEG C/min, pressure is 8MPa, is incubated WC-Co parts are obtained after 1.5h, cooling.
Embodiment 3
A kind of preparation method of TiC-Mo-Ni parts, specifically includes following steps：
1. it is prepared by raw material
Choose titanium carbide (TiC) powder 500g, powder size be located at 0.1 μm~1 μm, d50=0.8 μm, choose molybdenum (Mo) powder Last 42g, powder size be located at 0.2 μm~0.8 μm, d50=0.6 μm, nickel (Ni) powder 169g is chosen, powder size is located at 0.1 μm ~0.9 μm, d50=0.7 μm, choose tungsten carbide (WC) powder 127g, powder size be located at 0.1 μm~0.7 μm, d50=0.6 μm, Choose carbon (C) powder 8g, powder size be located at 0.1 μm~1 μm, d50=0.5 μm.Choose 8g VC powder and NbC powder, mixing Ratio is 1:2,16g hexenyl stearic bicine diester amine dispersant, TiC, Mo, Ni, WC, C, VC and NbC powder are mixed, mixing Powder afterwards is bisected into four parts with dispersant, takes its portion to be put into ball mill, carries out ball milling, the time is 60min, by residue Powder is sequentially added, and is well mixed, and often increases a powder, Ball-milling Time increase 60min.
Choose 210g urethane acrylate and acroleic acid esterification Polyacrylate monomer mixture, mixed proportion (1: 1), choose 10g hexenyl stearic bicine diester amine dispersant, by solid powder and dispersant be gradually added to urethane acrylate with In acroleic acid esterification Polyacrylate monomer mixture, uniform mixing., it is necessary to be added during slurry mixing is carried out Heat, the temperature of heating is 60 DEG C.In darkroom, 4g 4- methyl benzophenone light triggers, mixing are added.It is mixed in whole slurry Conjunction process, is constantly stirred, until slurry is well mixed.In order to reduce the viscosity of slurry, 6g MEK and hexamethylene are added The mixture of ketone diluent, mixed proportion 1:1, in order to eliminate the bubble that slurry is produced in mixed process due to stirring, plus Enter 7g polyacrylate defoamer.
2. it is prepared by green compact
Slurry is added in uv equipment, using controllable ultraviolet beam, wavelength be 245nm (, using an exposure Mode, adjusting parameter, thickness is 50 μm, according to 3D printing model, successively solidifies, part green compact are made.
3. post processing
Part green compact room temperature is put into sintering furnace, skimming temp is 500 DEG C, and 200 are warming up to 10 DEG C/min speed DEG C, 1h is incubated, 400 DEG C are warming up to 2 DEG C/min, 500 DEG C are warming up to 0.5 DEG C/min, degreasing is carried out, soaking time is 3h.
At 1390 DEG C, soaking time obtains the high fine and close, part of high intensity under conditions of 2h, to be sintered.Heating is adopted Staged heating mode is used, 800 DEG C are warming up to 15 DEG C/min, 1000 DEG C are warming up to 8 DEG C/min, 1h is incubated, with 2 DEG C/min 1300 DEG C/min is warming up to, 1390 DEG C are warming up to 0.5 DEG C/min, 2h is incubated, TiC-Mo-Ni parts is obtained after cooling.
Embodiment 4
A kind of preparation method of TiC-Mo-Ni parts, specifically includes following steps：
1. it is prepared by raw material
Choose titanium carbide (TiC) powder 500g, powder size be located at 0.1 μm~1 μm, d50=0.8 μm, choose molybdenum (Mo) powder Last 40g, powder size be located at 0.2 μm~0.8 μm, d50=0.6 μm, nickel (Ni) powder 175g is chosen, powder size is located at 0.1 μm ~0.9 μm, d50=0.7 μm, choose tungsten carbide (WC) powder 110g, powder size be located at 0.1 μm~0.7 μm, d50=0.6 μm, Choose carbon (C) powder 10g, powder size be located at 0.1 μm~1 μm, d50=0.5 μm.8g HfC powder and NbC powder is chosen, is mixed Composition and division in a proportion example is 1:1,14g hexenyl stearic bicine diester amine dispersant, TiC, Mo, Ni, WC, C, HfC and NbC powder are mixed, Mixed powder is bisected into four parts with dispersant, takes its portion to be put into ball mill, carries out ball milling, the time is 60min, will Residual powder is sequentially added, and is well mixed, and often increases a powder, Ball-milling Time increase 60min.
Choose 210g spiro orthoester and acroleic acid esterification Polyacrylate monomer mixture, mixed proportion (1:1), select 12g hexenyl stearic bicine diester dispersant is taken, solid powder and dispersant are gradually added to spiro orthoester and acroleic acid esterification In polyacrylic acid ester admixture, uniform mixing., it is necessary to be heated during slurry mixing is carried out, the temperature of heating is 55℃.In darkroom, 4g 4- methyl benzophenones and 2- isopropyl thioxanthone light triggers, mixing are added.Entirely starching Expect mixed process, be constantly stirred, until slurry is well mixed.In order to reduce the viscosity of slurry, add 6g MEK with The mixture of cyclohexanone diluent, mixed proportion 1:1, in order to eliminate the gas that slurry is produced in mixed process due to stirring Bubble, adds 7g polyacrylate defoamer.
2. it is prepared by green compact
Slurry is added in uv equipment, using controllable ultraviolet beam, wavelength is 250nm, using an exposure Mode, adjusting parameter, thickness is 60 μm, according to 3D printing model, successively solidifies, part green compact are made.
3. post processing
Part green compact room temperature is put into sintering furnace, skimming temp is 500 DEG C, and 200 are warming up to 10 DEG C/min speed DEG C, 1h is incubated, 400 DEG C are warming up to 2 DEG C/min, 500 DEG C are warming up to 0.5 DEG C/min, degreasing is carried out, soaking time is 3h.
Again at 1430 DEG C, soaking time obtains the high fine and close, part of high intensity under conditions of 2h, to be sintered.Heating Using staged heating mode, 800 DEG C are warming up to 15 DEG C/min, 1000 DEG C are warming up to 8 DEG C/min, 1h is incubated, with 2 DEG C/ Min is warming up to 1350 DEG C/min, is incubated 1h, and 1430 DEG C are warming up to 0.5 DEG C/min, is incubated 2h, TiC-Mo-Ni is obtained after cooling Part.
Embodiment 5
A kind of preparation method of Ti (C, N)-Mo parts, specifically includes following steps：
1. it is prepared by raw material
Titanium carbide (TiC) powder 400g is chosen, powder size is located at 0.1 μm~1 μm, d50=0.8 μm, chooses titanium nitride (TiN) powder 102g, powder size is located at 0.1 μm~1 μm, d50=0.7 μm, chooses molybdenum (Mo) powder 42g, powder size position In 0.2 μm~0.8 μm, d50=0.6 μm, choose nickel (Ni) powder 170g, powder size be located at 0.1 μm~0.9 μm, d50= 0.7 μm, tungsten carbide (WC) powder 127g is chosen, powder size is located at 0.1 μm~0.7 μm, d50=0.6 μm, chooses carbon (C) powder Last 8g, powder size be located at 0.1 μm~1 μm, d50=0.5 μm.Choose 8g HfC powder and Cr3C2Powder, mixed proportion is 1: 1,17g poly- sodium propionate and polystyrene dispersant mixture, mixed proportion 1:1.By TiC, TiN, Mo, Ni, WC, C, HfC with And Cr3C2Powder is mixed, and mixed powder is bisected into four parts with dispersant, takes its portion to be put into ball mill, carries out ball Mill, the time is 60min, and residual powder is sequentially added, and is well mixed, and often increases a powder, Ball-milling Time increase 60min.
470g epoxy acrylate, bicyclo orthoester and acroleic acid esterification Polyacrylate monomer mixture is chosen, is mixed Composition and division in a proportion example (1:1:1) 12g dispersant, is chosen, solid powder and dispersant are gradually added to epoxy acrylate, bicyclic ortho acid Ester is with acroleic acid esterification polyacrylic acid ester admixture, uniformly mixing., it is necessary to be added during slurry mixing is carried out Heat, the temperature of heating is 55 DEG C.In darkroom, the 4g double methyl ethers of benzil and 2- isopropyl thioxanthone light triggers are added, Mixed proportion 1:1.In whole slurry mixed process, constantly it is stirred, until slurry is well mixed.In order to reduce the viscous of slurry Degree, adds 8g MEK and the mixture of cyclohexanone diluent, mixed proportion 1:1, in order to eliminate slurry in mixed process The bubble produced due to stirring, adds 10g tributyl phosphate defoamer.
2. it is prepared by green compact
Slurry is added in uv equipment, using controllable ultraviolet beam, wavelength is 337nm, using an exposure Mode, adjusting parameter, it is 60 μm to set thickness, according to 3D printing model, successively solidifies, part green compact are made.
3. post processing
Part green compact room temperature is put into sintering furnace, skimming temp is 470 DEG C, and 200 are warming up to 10 DEG C/min speed DEG C, 1h is incubated, 400 DEG C are warming up to 2 DEG C/min, soaking time 1h is warming up to 470 DEG C with 0.2 DEG C/min, carries out degreasing, protects The warm time is 3h.
Again at 1430 DEG C, pressure 10MPa, soaking time obtains high fine and close, high intensity under conditions of 2h, to be sintered Part.Heating uses staged heating mode, and 800 DEG C are warming up to 15 DEG C/min, and 1000 DEG C, guarantor are warming up to 8 DEG C/min Warm 1h, 1350 DEG C/min is warming up to 2 DEG C/min, is incubated 1h, and 1430 DEG C, pressure 10MPa, insulation are warming up to 0.5 DEG C/min Ti (C, N)-Mo parts are obtained after 2h, cooling.
Embodiment 6
A kind of preparation method of Ti (C, N)-Mo parts, specifically includes following steps：
1. it is prepared by raw material
Titanium carbide (TiC) powder 400g is chosen, powder size is located at 0.1 μm~1 μm, d50=0.8 μm, chooses titanium nitride (TiN) powder 130g, powder size is located at 0.1 μm~1 μm, d50=0.7 μm, chooses molybdenum (Mo) powder 162g, powder size position In 0.2 μm~0.8 μm, d50=0.6 μm, choose nickel (Ni) powder 216g, powder size be located at 0.1 μm~0.9 μm, d50= 0.7 μm, tungsten carbide (WC) powder 162g is chosen, powder size is located at 0.1 μm~0.7 μm, d50=0.6 μm, chooses carbon (C) powder Last 11g, powder size be located at 0.1 μm~1 μm, d50=0.5 μm.Choose 6g HfC powder and Cr3C2Powder, mixed proportion is 1:1,17g poly- sodium propionate and polystyrene dispersant mixture, mixed proportion 1:1.By TiC, TiN, Mo, Ni, WC, C, HfC And Cr3C2Powder is mixed, and mixed powder is bisected into four parts with dispersant, takes its portion to be put into ball mill, carries out ball Mill, the time is 60min, and residual powder is sequentially added, and is well mixed, and often increases a powder, Ball-milling Time increase 60min.
460g epoxy acrylate, bicyclo orthoester and acroleic acid esterification Polyacrylate monomer mixture is chosen, is mixed Composition and division in a proportion example (1:1:1) 10g dispersant, is chosen, solid powder and dispersant are gradually added to epoxy acrylate, bicyclic ortho acid Ester is with acroleic acid esterification polyacrylic acid ester admixture, uniformly mixing., it is necessary to be added during slurry mixing is carried out Heat, the temperature of heating is 60 DEG C.In darkroom, the 6g double methyl ethers of benzil and 2- isopropyl thioxanthone light triggers are added, Mixed proportion 1:1.In whole slurry mixed process, constantly it is stirred, until slurry is well mixed.In order to reduce the viscous of slurry Degree, adds 10g MEK and the mixture of cyclohexanone diluent, mixed proportion 1:1, in order to eliminate slurry in mixed process The bubble produced due to stirring, adds 10g tributyl phosphate defoamer.
2. it is prepared by green compact
Slurry is added in uv equipment, using controllable ultraviolet beam, wavelength is 337nm, is exposed using face Mode, adjusting parameter, thickness is 70 μm, according to 3D printing model, successively solidifies, part green compact are made.
3. post processing
Part green compact room temperature is put into sintering furnace, skimming temp is 450 DEG C, and 200 are warming up to 10 DEG C/min speed DEG C, 1h is incubated, 400 DEG C are warming up to 2 DEG C/min, soaking time 1h is warming up to 450 DEG C with 0.2 DEG C/min, carries out degreasing, protects The warm time is 3h.
At 1430 DEG C, pressure 6MPa, soaking time obtains high densification, the zero of high intensity under conditions of 2h, to be sintered Part.Heating uses staged heating mode, and 800 DEG C are warming up to 15 DEG C/min, and 1000 DEG C are warming up to 8 DEG C/min, is incubated 1h, 1350 DEG C/min is warming up to 2 DEG C/min, 1h is incubated, 1430 DEG C are warming up to 0.5 DEG C/min, pressure 6MPa is incubated 2h, cooling After obtain Ti (C, N)-Mo parts.

Claims (10)

1. a kind of quick forming method of cermet part, it is characterised in that comprise the following steps：
Metal dust and ceramic powders are mixed, solid mixed-powder is obtained, sintering aid and dispersant is added, mixing is equal After even, ball milling, dissociation are carried out to the solid mixed-powder by ball mill；Then the good solid mixed-powder of ball milling is added In photo-curing monomer, light trigger, dispersant, defoamer are added, is stirred, slurry is obtained；
The slurry mixed is added into uv equipment, using ultraviolet beam, according to threedimensional model successively or pointwise is beaten Cermet part green compact are made in print, solidification accumulation；
Low-temperature defatted and sintering is carried out to the cermet part green compact of the solidification stack shaping by sintering furnace, metal is obtained Ceramic part.
2. the quick forming method of cermet part according to claim 1, it is characterised in that the cermet is Oxide base cermet, carbide-base ceramics or boride-base cerment.
3. the quick forming method of cermet part according to claim 1, it is characterised in that the sintering aid is Vanadium carbide, chromium carbide, ramet, niobium carbide or hafnium carbide, the quality of the sintering aid is the solid mixed-powder quality 0.5%~3%.
4. the quick forming method of cermet part according to claim 1, it is characterised in that the photo-curing monomer For epoxy acrylate, urethane acrylate, polyester propyl ether acrylate, acroleic acid esterification polyacrylate, glycidol Base class, glycidol ethers, glycidol esters, alicyclic epoxy, polyurethanes epoxy, unsaturated double-bond oxidation category epoxy, Any in aromatic epoxies, the mass ratio of the quality of the photo-curing monomer and the solid mixed-powder is 3:2~17:3.
5. the quick forming method of cermet part according to claim 1, it is characterised in that the dispersant is poly- It is any in sodium propionate, polypropylene, polystyrene, quaternary ammonium acetate, hexenyl bis-stearamides, glyceryl tristearate, two The dispersant gross mass of secondary addition accounts for the 0.5%~5% of the solid mixed-powder gross mass, and the dispersant is added during ball milling The 0.3%~3% of gross mass, slurry adds the 0.2%~2% of the dispersant gross mass when mixing.
6. the quick forming method of cermet part according to claim 1, it is characterised in that the light trigger is Salt compounded of iodine, sulfosalt, diazol, styrax ethers, acetophenones, benzil class, benzophenone/tertiary amine, α-hydroxyl cycloalkyl benzene Any one or more mixtures, the quality of the light trigger in ketone, α-amine alkylbenzene ketone, thioxanthone/tertiary amines For the 0.5%~2% of the photo-curing monomer quality.
7. the quick forming method of cermet part according to claim 1, it is characterised in that the defoamer is second It is any in alcohol, n-butanol, tributyl phosphate, metallic soap, polyethers, polyacrylate, polydimethyl siloxane fluid, the defoamer Content is the 0.5%~1% of the stock quality.
8. the quick forming method of cermet part according to claim 1, it is characterised in that also include, adds institute When stating light trigger, dispersant, defoamer, be additionally added diluent, the diluent be acetone, MEK, cyclohexanone, toluene or Styrene, the quality of the diluent is the 0.4%~0.9% of the stock quality.
9. the quick forming method of cermet part according to claim 1, it is characterised in that the solid mixed powder When end adds photo-curing monomer, the solid mixed-powder and photo-curing monomer are preheated, preheating temperature is 40 DEG C~70 Between DEG C.
10. the quick forming method of cermet part according to claim 1, it is characterised in that the skimming temp For 250 DEG C~500 DEG C, soaking time is 2h~4h.
CN201710228920.2A 2017-04-10 2017-04-10 A kind of quick forming method of cermet part Pending CN107127340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710228920.2A CN107127340A (en) 2017-04-10 2017-04-10 A kind of quick forming method of cermet part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710228920.2A CN107127340A (en) 2017-04-10 2017-04-10 A kind of quick forming method of cermet part

Publications (1)

Publication Number Publication Date
CN107127340A true CN107127340A (en) 2017-09-05

Family

ID=59715298

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710228920.2A Pending CN107127340A (en) 2017-04-10 2017-04-10 A kind of quick forming method of cermet part

Country Status (1)

Country Link
CN (1) CN107127340A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108033777A (en) * 2017-10-31 2018-05-15 西安铂力特增材技术股份有限公司 A kind of alumina slurry for photocuring technology and preparation method thereof
WO2021004776A1 (en) * 2019-07-05 2021-01-14 Sandvik Machining Solutions Ab Three dimensional printing of cermet or cemented carbide
CN112692300A (en) * 2020-12-14 2021-04-23 合肥新杉宇航三维科技有限公司 3D printing method of metal ceramic composite material
CN114570939A (en) * 2022-03-09 2022-06-03 广东金瓷三维技术有限公司 Hard alloy material system for 3D printing and 3D printing method
CN114786841A (en) * 2019-12-20 2022-07-22 山特维克加工解决方案股份有限公司 Use of a thermosetting binder in 3D printing of cemented carbide or cermet bodies

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1778760A (en) * 2005-10-18 2006-05-31 中国海洋大学 Gel molding-injection base from high-strength ceramic composite materials and shaping method thereof
US7169328B2 (en) * 2003-01-17 2007-01-30 T/J Technologies, Inc. Multiphase nanocomposite material and method for its manufacture
CN101423901A (en) * 2007-10-29 2009-05-06 比亚迪股份有限公司 Method for preparing cermet material
CN106541129A (en) * 2016-11-08 2017-03-29 西安铂力特激光成形技术有限公司 A kind of preparation method of particles reiforced metal-base composition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7169328B2 (en) * 2003-01-17 2007-01-30 T/J Technologies, Inc. Multiphase nanocomposite material and method for its manufacture
CN1778760A (en) * 2005-10-18 2006-05-31 中国海洋大学 Gel molding-injection base from high-strength ceramic composite materials and shaping method thereof
CN101423901A (en) * 2007-10-29 2009-05-06 比亚迪股份有限公司 Method for preparing cermet material
CN106541129A (en) * 2016-11-08 2017-03-29 西安铂力特激光成形技术有限公司 A kind of preparation method of particles reiforced metal-base composition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108033777A (en) * 2017-10-31 2018-05-15 西安铂力特增材技术股份有限公司 A kind of alumina slurry for photocuring technology and preparation method thereof
WO2021004776A1 (en) * 2019-07-05 2021-01-14 Sandvik Machining Solutions Ab Three dimensional printing of cermet or cemented carbide
CN114786841A (en) * 2019-12-20 2022-07-22 山特维克加工解决方案股份有限公司 Use of a thermosetting binder in 3D printing of cemented carbide or cermet bodies
CN112692300A (en) * 2020-12-14 2021-04-23 合肥新杉宇航三维科技有限公司 3D printing method of metal ceramic composite material
CN114570939A (en) * 2022-03-09 2022-06-03 广东金瓷三维技术有限公司 Hard alloy material system for 3D printing and 3D printing method
CN114570939B (en) * 2022-03-09 2024-06-18 广东金瓷三维技术有限公司 Cemented carbide material system for 3D printing and 3D printing method

Similar Documents

Publication Publication Date Title
CN107127340A (en) A kind of quick forming method of cermet part
CN106541129B (en) A kind of preparation method of particles reiforced metal-base composition
KR101806252B1 (en) Three dimensional printing method using metal powder-containing composition
CN105950947B (en) Rich iron high-entropy alloy powder body material and preparation method thereof for 3D printing
CN106334793B (en) A kind of preparation method of tantalum and tantalum alloy part
JP5249447B1 (en) Foundry sand for 3D laminate molding
CN110564998B (en) Preparation method of high-density tungsten-based alloy
EP3698900B1 (en) Method for identifying and forming viable high entropy alloys via additive manufacturing
CN104325128B (en) A kind of 3D prints with heat-resisting die Steel material and preparation method thereof
CN104736274B (en) Manufacture refractory metal part
JP2009293108A (en) METHOD FOR PRODUCING Al-BASED ALLOY SPUTTERING TARGET MATERIAL
CN106270490B (en) Surface layer is TiC-Ni-10TaC-10Mo2Hard alloy of C cermet coatings and preparation method thereof
KR20200096657A (en) Use of aluminum-containing alloys for lamination molding
CN105562587B (en) It is a kind of reduce casting crack molding sand and its application
CN110732801A (en) Cu-Ni-Mn alloy solder powder and its preparing process
CN114042917A (en) Preparation method of micron-sized titanium alloy product
CN115667584A (en) Method for manufacturing nanostructured and compositionally tailored tubes and components by low temperature solid state cold spray powder deposition
CN107127341A (en) A kind of quick forming method of TiAl alloy part
CN113414397B (en) Vacuum gas atomization continuous preparation method of iron-based metal powder
CN106119663A (en) Intermediate zone inner surface alloy powder, preparation and coating thereof on cement rotary kiln
US11248284B2 (en) Non-magnetic austenitic steel with good corrosion resistance and high hardness
CN107385344A (en) A kind of powder metallurgy high gear synchronizer gear seat Chi Grains material prescriptions and production technology
CN110722162A (en) Preparation method of 1420 aluminum lithium alloy hollow ingot blank by spray forming
DE102005059429B4 (en) Process for producing wear-resistant laminates with Fe-based coating materials containing hard material
CN110225804B (en) Method for producing soft magnetic iron powder

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 710075 No. 1000 Shanglinyuan No. 7 Road, Xi'an High-tech Zone, Shaanxi Province

Applicant after: Xi'an platinum power technology Limited by Share Ltd

Address before: 710075 A0508, pioneer Plaza, 48 tech Road, Xi'an new high tech Zone, Shaanxi

Applicant before: Xi'an Bright Laser Technology Ltd.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170905