CN105837216A - Preparation method of ceramic part - Google Patents
Preparation method of ceramic part Download PDFInfo
- Publication number
- CN105837216A CN105837216A CN201610164472.XA CN201610164472A CN105837216A CN 105837216 A CN105837216 A CN 105837216A CN 201610164472 A CN201610164472 A CN 201610164472A CN 105837216 A CN105837216 A CN 105837216A
- Authority
- CN
- China
- Prior art keywords
- ceramic part
- preparation
- ceramic
- green body
- crude green
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/5607—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides
- C04B35/5626—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on tungsten carbides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/5607—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides
- C04B35/5611—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on titanium carbides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/58007—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides
- C04B35/58014—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides based on titanium nitrides, e.g. TiAlON
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63424—Polyacrylates; Polymethacrylates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63452—Polyepoxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63456—Polyurethanes; Polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/6346—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6026—Computer aided shaping, e.g. rapid prototyping
Abstract
The invention discloses a preparation method of a ceramic part. The preparation method comprises the steps: firstly, evenly mixing a ceramic powder with an organic binder under a light shielding condition, then adding a defoaming agent, mixing evenly, and removing impurities on the surface after foams are removed, to obtain a mixed slurry; loading the mixed slurry into a 3D printing forming device, using a controllable ultraviolet light beam, adopting a face exposure or point scanning manner, and according to a three-dimensional model of the part, printing layer by layer, to obtain a rough blank of the ceramic part; then carrying out low temperature degreasing treatment of the rough blank of the ceramic part, to make the organic binder in the rough blank evaporated and overflowed; and next, carrying out hot isostatic pressing treatment to obtain the dense ceramic part. The 3D printing technology is adopted for producing the ceramic part, the shape of the part is not constrained, the density is relatively good, and the problems that a conventional hot pressing molding preparation method depends on a mold and is not suitable for small-batch production are solved.
Description
Technical field
The invention belongs to technical field of material, be specifically related to the preparation method of a kind of ceramic part.
Background technology
It is strong that ceramic particle has non-oxidizability, and anti-wear performance is good, and hardness is high, and Heat stability is good, high temperature is strong
Degree height, thermal coefficient of expansion is little, and thermal conductivity is big and the good characteristic such as anti-thermal shock and resistance to chemical attack, at stone
The fields such as oil, chemical industry, machinery, space flight, nuclear energy are extensively applied, such as: ceramic bearing, ball, nozzle,
Sealing member, cutting element, gas turbine blade, turbocharger rotor, radiation shield and rocket burning
Chamber liner etc..
The method preparing ceramic part in prior art is mainly moulding sintering process, it may be assumed that first by ceramics
Body and binding agent hybrid modulation form slurry according to a certain percentage, then slurry is injected particular mold, by heat
The method of pressure sintering shapes and obtains ceramic part.Ceramic powders must be carried out hot pressing by mould by the method
Sintering, and manufacture the excessive cycle of mould, die cost is high.Meanwhile, existing powder hot-pressing sintering system
The technology of making is only capable of being simple to manufacture shape, is not suitable for the system of single-piece/be pilot with the feature of customization
Make.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of ceramic part, the method can manufacture the most multiple
The part of miscellaneous shape, solves existing hot-pressing forming preparation method and relies on mould, be not suitable for small lot batch manufacture
Problem.And the method manufacturing cycle is short, the product consistency obtained is high.
The technical solution adopted in the present invention is, the preparation method of a kind of ceramic part, comprises the following steps:
Step 1, preparation of raw material
Ceramic powders is mixed homogeneously with organic adhesive under the conditions of lucifuge, then adds defoamer and mix
Even, after bubble disappears, remove surface impurity, obtain mixed slurry.
Step 2, crude green body manufacture
Mixed slurry is loaded in 3D printing formation unit, utilize controllable UV Line beam, use face exposure
Or the mode of spot scan, successively print according to three-dimensional part model, make ceramic part crude green body.
Step 3, post processing
Ceramic part crude green body is carried out low-temperature defatted process, makes the organic adhesive evaporation in crude green body overflow；
Carry out hip treatment again, it is thus achieved that fine and close ceramic part.
The feature of the present invention also resides in:
Ceramic powders is 3:7～3:2 with the volume ratio of organic adhesive.
Organic adhesive uses photosensitive resin, by bonding for ceramic powders solidified forming ceramic part.It is preferably
Epoxy acrylic resin, unsaturated polyester resin, urethane acrylate, polyester acrylate, polyester
Acrylic resin or amino acrylic resin.
Defoamer can be adopted as lower alcohol, organically-modified compound, organic polymer, organic siliconresin,
Mineral oil etc..Preferred alcohol, n-butyl alcohol, tributyl phosphate, metallic soap, polyethers, polyacrylate,
One of polydimethyl siloxane fluid or modified polyorganosiloxane.
Preferably, defoamer accounts for the 0.05%～1.0% of mixed slurry cumulative volume.
Preferably, the layer thickness control successively printed is in 20～80 μm, and optical source wavelength is 200～400nm.
Preferably, when using face exposure, time of exposure is 0.1-3s；When using spot scan, spot diameter is
0.1～0.15mm, hot spot translational speed 1-300mm/min.
Preferably, the temperature of low-temperature defatted process 100 DEG C～700 DEG C, time 2-4h.
Preferably, hip treatment temperature 1550 DEG C～1650 DEG C, pressure 100MPa～500MPa,
Time 2-5h.
Present invention pottery, preferably high-melting-point pottery, such as WC, TiC, TiN, aluminium oxide or zirconium oxide etc..
The invention has the beneficial effects as follows, the present invention uses 3D printing technique to manufacture ceramic part, the shape of part
Shape is unfettered, shortens the manufacturing cycle of traditional method, improves the manufacture efficiency of ceramic part, fall
Low manufacturing cost.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail, but the present invention does not limit
In these embodiments.
The invention provides the preparation method of a kind of ceramic part, the method may be used for preparing high-melting-point pottery
Porcelain part, is particularly suited for such as: the ceramic parts such as WC, TiC, TiN, aluminium oxide, zirconium oxide.Specifically
Preparation method is as follows:
Step 1, preparation of raw material
Spherical ceramic powder is mixed homogeneously according to the volume ratio of 3:7～3:2 with organic adhesive, is mixed
Close slurry.Organic adhesive be epoxy acrylic resin, unsaturated polyester resin, amino acrylic resin,
Polyester acrylate resin, urethane acrylate or polyester acrylate.The flowing good for ensureing slurry
Property, mixed process and storing process should avoid seeing light, particularly avoids ultraviolet light and irradiates, and mixed process is as far as possible
Avoid being mixed into too much impurity oxygen, it is ensured that high temperature sintering quality.
In order to reduce the bubble produced in whipping process, above-mentioned mixed liquor adds defoamer, slowly stirs
Mix, to reduce the surface tension of liquid around bubble, make little bubble coalescence become big bubble, finally make
Bubbles burst, plays suppression or eliminates the effect of bubble in slurry.After slurry air entrapment disappears, go
Desizing material floaters on surface or residue, it is thus achieved that the mixed slurry of uniform bubble-free.Defoamer can be selected for rudimentary
Alcohol, organically-modified compound, mineral oil, organic polymer, organic siliconresin etc., preferred alcohol, just
Butanol, tributyl phosphate, metallic soap, polyethers, polyacrylate, polydimethyl siloxane fluid or modified poly-silicon
One of oxygen alkane, its addition accounts for the 0.05%～1.0% of mixed slurry cumulative volume.
Step 2, crude green body manufacture
The mixed slurry of step 1 is loaded in 3D printing formation unit, utilizes controllable UV Line beam, adopt
By face exposure or the mode of spot scan, successively print according to three-dimensional part model, layer thickness control 20～
80 μm, optical source wavelength is 200～400nm, exposes according to face, and every layer of time of exposure is 0.1-3s；If
Using spot scan, spot diameter is 0.1～0.15mm, and hot spot translational speed is 1-300mm/min.Make
Ceramic part crude green body.
Step 3, post processing
In order to reduce the organic adhesive impact on ceramic objects intensity, ceramic part crude green body is carried out low temperature
Ungrease treatment, temperature controls at 100 DEG C～700 DEG C, and time 2-4h makes the organic adhesive in crude green body steam
Send out and overflow；Afterwards, in order to make ceramic part crude green body densification, the ceramic part crude green body after defat is entered again
Row hip treatment, uses argon shield, treatment temperature 1550 DEG C～1650 DEG C, pressure in sintering process
Strong 100MPa～500MPa, time 2-5h, it is thus achieved that fine and close ceramic part.
The ceramic part precision that the present invention prepares is higher, steady quality, high to raw-material utilization rate,
And manufacturing speed is fast, the part that energy forming shape is especially complex, the finest, it is suitable for small lot batch manufacture.
Embodiment 1
The preparation method of a kind of WC ceramic part, specifically includes following steps:
(1) preparation of raw material
Prepare organic adhesive urethane acrylate: with urethane acrylate (polyurethane
Acrylate, PUA) it is organic adhesive, the synthesis of urethane acrylate is to utilize isocyanide in isocyanates
Hydroxyl reaction in acid group and long chain diol and crylic acid hydroxy ester, forms ammonia ester bond and prepared.It closes
One-tenth method particularly as follows: 2mol diisocyanate and a certain amount of dibutyl tin laurate are added in reactor,
It is warmed up to 40～50 DEG C, slowly dropping 1mol Polyethylene Glycol, after reaction 1h, is warmed up to 60 DEG C, measures
Nco value, to value of calculation, adds 2mol crylic acid hydroxy ester and a certain amount of hydroquinone of polymerization retarder,
It is warming up to 70～80 DEG C, until nco value is zero.In view of NCO has bigger toxicity, can during reaction
Suitably to make crylic acid hydroxy ester the most excessive, make NCO group reaction completely, to obtain final product.
It is that 3:2 is in lucifuge condition by the urethane acrylate of WC ceramic powders and synthesis according to volume ratio
Under mix, be then added thereto to defoamer tributyl phosphate, be slowly stirred, treat the internal gas of slurry
After bubble disappears, remove pulp surface floating thing or residue, it is thus achieved that the mixed slurry of uniform bubble-free；Froth breaking
Agent accounts for the 0.5% of mixed slurry cumulative volume.
(2) crude green body manufacture
Mixed slurry loads 3D print in Stereolithography equipment, utilize controllable UV Line beam, use
The method of face exposure successively prints according to three-dimensional part model, and spot diameter is 0.1mm, and optical source wavelength is
200nm, thickness 20 μm, every layer of time of exposure is 0.1s, successively makes WC ceramic part crude green body.
(3) post processing
Made WC ceramic part crude green body is inserted in low-temperature sintering stove, carries out low-temperature defatted at 100 DEG C
Process 2h, make organic adhesive overflow/volatilization.Again the ceramic part crude green body after defat is inserted high temperature insostatic pressing (HIP)
In stove, under argon shield, 1550 DEG C, under 150MPa, carry out hip treatment 3.5h, it is thus achieved that cause
Close WC ceramic part.
Embodiment 2
The preparation method of a kind of TiC ceramic part, specifically includes following steps:
(1) preparation of raw material
It is that 1:1 mixes under the conditions of lucifuge by TiC ceramic powders and epoxy acrylic resin according to volume ratio
Close, be then added thereto to defoamer n-butyl alcohol, be slowly stirred, after slurry air entrapment disappears, go
Desizing material floaters on surface or residue, it is thus achieved that the mixed slurry of uniform bubble-free；Defoamer accounts for mixed slurry
The 1% of cumulative volume.
(2) crude green body manufacture
Above-mentioned mixed slurry is loaded in 3D printing formation unit, utilizes controllable UV Line beam, use point
Scanning method successively prints according to three-dimensional part model, and optical source wavelength is 300nm, and thickness 50 μm, hot spot is straight
Footpath is 0.15mm, and hot spot translational speed is 300mm/min, successively makes TiC ceramic part crude green body.
(3) post processing
Made TiC ceramic part crude green body is inserted in low-temperature sintering stove, carries out low-temperature defatted at 300 DEG C
Process 4h, make organic adhesive overflow/volatilization.The TiC ceramic part crude green body after defat is inserted heat etc. again
In static pressure stove, under argon shield, 1650 DEG C, under 200MPa, carry out hip treatment 2h, obtain
Obtain fine and close TiC ceramic part.
Embodiment 3
The preparation method of a kind of TiN ceramic part, specifically includes following steps:
(1) preparation of raw material
It is that 3:7 mixes under the conditions of lucifuge by TiN ceramic powders and amino acrylic resin according to volume ratio
Close, be then added thereto to defoamer metallic soap, be slowly stirred, after slurry air entrapment disappears, go
Desizing material floaters on surface or residue, it is thus achieved that the mixed slurry of uniform bubble-free；Defoamer accounts for mixed slurry
The 0.8% of cumulative volume.
(2) crude green body manufacture
Above-mentioned mixed slurry is loaded 3D print in Stereolithography equipment, utilizes controllable UV Line beam,
Using spot scan method successively to print according to three-dimensional part model, optical source wavelength is 400nm, thickness 80 μm,
Spot diameter is 0.12mm, and hot spot translational speed is 1mm/min, makes TiN ceramic part crude green body.
(3) post processing
Made TiN ceramic part crude green body is inserted in low-temperature sintering stove, carries out low-temperature defatted at 650 DEG C
Process 3h, make organic adhesive overflow/volatilization.The TiN ceramic part crude green body after defat is inserted heat etc. again
In static pressure stove, under argon shield, 1600 DEG C, under 100MPa, carry out hip treatment 5h, obtain
Obtain fine and close TiN ceramic part.
Embodiment 4
The preparation method of a kind of aluminium oxide ceramics part, specifically includes following steps:
(1) preparation of raw material
It is that 3:5 enters under the conditions of lucifuge by alumina ceramic powder and epoxy acrylic resin according to volume ratio
Row mixing, is then added thereto to defoamer metallic soap, is slowly stirred, after slurry air entrapment disappears,
Remove pulp surface floating thing or residue, it is thus achieved that the mixed slurry of uniform bubble-free；Defoamer accounts for mixing slurry
The 0.5% of material cumulative volume.
(2) crude green body manufacture
Mixed slurry loads 3D print in Stereolithography equipment, utilize controllable UV Line beam, use
Face exposure method successively prints according to three-dimensional part model, and optical source wavelength is 300nm, thickness 50 μm, every layer
Time of exposure is 3s, successively makes aluminium oxide ceramics part crude green body.
(3) post processing
Made aluminium oxide ceramics part crude green body is inserted in low-temperature sintering stove, carries out low temperature at 400 DEG C and take off
Fat processes 4h, makes organic adhesive overflow/volatilization.Again the aluminium oxide ceramics part crude green body after defat is inserted
In high temperature insostatic pressing (HIP) stove, under argon shield, 1550 DEG C, under 100MPa, carry out hip treatment 2h,
Obtain fine and close aluminium oxide ceramics part.
Embodiment 5
The preparation method of a kind of zirconia ceramics part, specifically includes following steps:
(1) preparation of raw material
It is that 3:7 enters under the conditions of lucifuge by zirconia ceramics powder and amino acrylic resin according to volume ratio
Row mixing, is then added thereto to defoamer metallic soap, is slowly stirred, after slurry air entrapment disappears,
Remove pulp surface floating thing or residue, it is thus achieved that the mixed slurry of uniform bubble-free；Defoamer accounts for mixing slurry
The 1% of material cumulative volume.
(2) crude green body manufacture
Above-mentioned mixed slurry is loaded 3D print in Stereolithography equipment, utilizes controllable UV Line beam,
Using spot scan method successively to print according to three-dimensional part model, optical source wavelength is 200nm, thickness 50 μm,
Spot diameter is 0.1mm, and hot spot translational speed is 100mm/min, makes zirconia ceramics part crude green body.
(3) post processing
Made zirconia ceramics part crude green body is inserted in low-temperature sintering stove, carries out low temperature at 700 DEG C and take off
Fat processes 3h, makes organic adhesive overflow/volatilization.Again the zirconia ceramics part crude green body after defat is inserted
In high temperature insostatic pressing (HIP) stove, under argon shield, 1600 DEG C, under 500MPa, carry out hip treatment 5h,
Obtain fine and close zirconia ceramics part.
The compactness of the ceramic part that embodiment of the present invention 1-5 is prepared and toughness are good, all can meet market
Product demand, the most different, the demand of difformity part can be met.
The present invention uses 3D printing technique to manufacture ceramic part, and the shape of part is unfettered, shortens biography
The manufacturing cycle of system method, improve the manufacture efficiency of ceramic part, reduce manufacturing cost.
Above description of the present invention is section Example, but the invention is not limited in above-mentioned concrete reality
Execute mode.Above-mentioned detailed description of the invention is schematic, is not restrictive.Every employing this
Bright material and method, in the case of without departing from present inventive concept and scope of the claimed protection, institute
Within having concrete expansion all to belong to protection scope of the present invention.
Claims (10)
1. the preparation method of a ceramic part, it is characterised in that comprise the following steps:
Step 1, preparation of raw material
Ceramic powders is mixed homogeneously with organic adhesive under the conditions of lucifuge, then adds defoamer and mix
Even, after bubble disappears, remove surface impurity, obtain mixed slurry；
Step 2, crude green body manufacture
Mixed slurry loads 3D print in Stereolithography equipment, utilize controllable UV Line beam, use
Face exposure or the mode of spot scan, successively print according to three-dimensional part model, make ceramic part crude green body；
Step 3, post processing
Ceramic part crude green body is carried out low-temperature defatted process, makes the organic adhesive evaporation in crude green body overflow；
Carry out hip treatment again, it is thus achieved that fine and close ceramic part.
The preparation method of ceramic part the most according to claim 1, it is characterised in that described pottery
Powder is 3:7～3:2 with the volume ratio of described organic adhesive.
The preparation method of ceramic part the most according to claim 1, it is characterised in that described organic
Bonding agent is epoxy acrylic resin, unsaturated polyester resin, urethane acrylate, polyester acrylic
Ester, polyester acrylate resin or amino acrylic resin.
The preparation method of ceramic part the most according to claim 1, it is characterised in that described froth breaking
Agent is ethanol, n-butyl alcohol, tributyl phosphate, metallic soap, polyethers, polyacrylate, poly dimethyl silicon
Oil or modified polyorganosiloxane.
The preparation method of ceramic part the most according to claim 1, it is characterised in that described froth breaking
Agent accounts for the 0.05%～1.0% of mixed slurry cumulative volume.
The preparation method of ceramic part the most according to claim 1, it is characterised in that described successively
The layer thickness control printed is in 20～80 μm, and optical source wavelength is 200～400nm.
The preparation method of ceramic part the most according to claim 1, it is characterised in that described printing
When mode uses face to expose, time of exposure is 0.1-3s；When described printing type uses spot scan, hot spot is straight
Footpath is 0.1～0.15mm, hot spot translational speed 1-300mm/min.
The preparation method of ceramic part the most according to claim 1, it is characterised in that described low temperature
The temperature of ungrease treatment 100 DEG C～700 DEG C, time 2-4h.
The preparation method of ceramic part the most according to claim 1, it is characterised in that described heat etc.
Static pressure treatment temperature 1550 DEG C～1650 DEG C, pressure 100MPa～500MPa, time 2-5h.
10. according to the preparation method of the ceramic part according to any one of claim 1-9, it is characterised in that
Described pottery is high-melting-point pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164472.XA CN105837216A (en) | 2016-03-22 | 2016-03-22 | Preparation method of ceramic part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164472.XA CN105837216A (en) | 2016-03-22 | 2016-03-22 | Preparation method of ceramic part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105837216A true CN105837216A (en) | 2016-08-10 |
Family
ID=56587800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610164472.XA Pending CN105837216A (en) | 2016-03-22 | 2016-03-22 | Preparation method of ceramic part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105837216A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435236A (en) * | 2016-11-08 | 2017-02-22 | 西安铂力特激光成形技术有限公司 | Preparation method for nickel-based high-temperature alloy workpiece |
| CN107129283A (en) * | 2017-05-12 | 2017-09-05 | 南京工业大学 | A kind of photocuring 3D printing high solid loading ceramic slurry and its preparation technology |
| CN107216155A (en) * | 2017-05-31 | 2017-09-29 | 武汉理工大学 | Double film coated ceramic powders of a kind of PF/PVA for laser 3D printing/isostatic cool pressing composite molding and preparation method thereof |
| CN107243590A (en) * | 2017-04-26 | 2017-10-13 | 西安交通大学 | A kind of ceramic-mould preparation method of oriented single crystal high temperature alloy part |
| CN107382327A (en) * | 2017-09-20 | 2017-11-24 | 吴江中瑞机电科技有限公司 | The preparation and application of ceramic 3D printing slurry |
| CN107540352A (en) * | 2017-09-20 | 2018-01-05 | 吴江中瑞机电科技有限公司 | The preparation and application of 3D printing aluminum oxide toughening ceramic slurry |
| CN108083777A (en) * | 2017-11-10 | 2018-05-29 | 山东工业陶瓷研究设计院有限公司 | A kind of preparation method of photocuring 3D printing Al-base ceramic slurry and ceramic core |
| CN108329038A (en) * | 2018-01-17 | 2018-07-27 | 龙泉市金宏瓷业有限公司 | A kind of forming method of guidance type 3D printing ceramics |
| CN109180182A (en) * | 2018-08-28 | 2019-01-11 | 西安交通大学 | A kind of zirconium oxide artificial tooth and its photocuring dynamic molding method with gradient mechanical property |
| CN109676747A (en) * | 2019-02-19 | 2019-04-26 | 南通理工学院 | A kind of more material ceramics photocuring print system mechanisms and crude green body preparation method |
| CN110304930A (en) * | 2019-07-29 | 2019-10-08 | 中国科学院空间应用工程与技术中心 | It is a kind of to manufacture the soft material and preparation method thereof used for microgravity environment |
| CN111925213A (en) * | 2020-06-16 | 2020-11-13 | 季华实验室 | Tungsten carbide powder with surface coated with metal oxide layer and forming method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6554882B1 (en) * | 1998-05-26 | 2003-04-29 | Drexel University | Rapid tooling sintering method and compositions therefor |
| CN101422963A (en) * | 2008-10-14 | 2009-05-06 | 欧客思国际有限公司 | Manufacture method and device of three-dimensional workpiece |
| CN103769586A (en) * | 2013-11-26 | 2014-05-07 | 王利民 | Metal 3D printing product production method by means of low-power laser sintering |
| CN104149337A (en) * | 2014-07-02 | 2014-11-19 | 中国电子科技集团公司第五十五研究所 | Photocuring material for three-dimensional printing and application method thereof |
| CN104926312A (en) * | 2015-06-29 | 2015-09-23 | 莱芜亚赛陶瓷技术有限公司 | High-thermal-conductivity pressurelessly-sintered silicon carbide ceramic material and preparation method thereof |
-
2016
- 2016-03-22 CN CN201610164472.XA patent/CN105837216A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6554882B1 (en) * | 1998-05-26 | 2003-04-29 | Drexel University | Rapid tooling sintering method and compositions therefor |
| CN101422963A (en) * | 2008-10-14 | 2009-05-06 | 欧客思国际有限公司 | Manufacture method and device of three-dimensional workpiece |
| CN103769586A (en) * | 2013-11-26 | 2014-05-07 | 王利民 | Metal 3D printing product production method by means of low-power laser sintering |
| CN104149337A (en) * | 2014-07-02 | 2014-11-19 | 中国电子科技集团公司第五十五研究所 | Photocuring material for three-dimensional printing and application method thereof |
| CN104926312A (en) * | 2015-06-29 | 2015-09-23 | 莱芜亚赛陶瓷技术有限公司 | High-thermal-conductivity pressurelessly-sintered silicon carbide ceramic material and preparation method thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435236A (en) * | 2016-11-08 | 2017-02-22 | 西安铂力特激光成形技术有限公司 | Preparation method for nickel-based high-temperature alloy workpiece |
| CN107243590A (en) * | 2017-04-26 | 2017-10-13 | 西安交通大学 | A kind of ceramic-mould preparation method of oriented single crystal high temperature alloy part |
| CN107129283A (en) * | 2017-05-12 | 2017-09-05 | 南京工业大学 | A kind of photocuring 3D printing high solid loading ceramic slurry and its preparation technology |
| CN107216155B (en) * | 2017-05-31 | 2020-01-14 | 武汉理工大学 | PF/PVA double-coated ceramic powder for laser 3D printing/cold isostatic pressing composite molding and preparation method thereof |
| CN107216155A (en) * | 2017-05-31 | 2017-09-29 | 武汉理工大学 | Double film coated ceramic powders of a kind of PF/PVA for laser 3D printing/isostatic cool pressing composite molding and preparation method thereof |
| CN107382327A (en) * | 2017-09-20 | 2017-11-24 | 吴江中瑞机电科技有限公司 | The preparation and application of ceramic 3D printing slurry |
| CN107540352A (en) * | 2017-09-20 | 2018-01-05 | 吴江中瑞机电科技有限公司 | The preparation and application of 3D printing aluminum oxide toughening ceramic slurry |
| CN107382327B (en) * | 2017-09-20 | 2020-02-21 | 苏州中瑞智创三维科技股份有限公司 | Preparation and application of ceramic 3D printing slurry |
| CN108083777A (en) * | 2017-11-10 | 2018-05-29 | 山东工业陶瓷研究设计院有限公司 | A kind of preparation method of photocuring 3D printing Al-base ceramic slurry and ceramic core |
| CN108329038A (en) * | 2018-01-17 | 2018-07-27 | 龙泉市金宏瓷业有限公司 | A kind of forming method of guidance type 3D printing ceramics |
| CN109180182A (en) * | 2018-08-28 | 2019-01-11 | 西安交通大学 | A kind of zirconium oxide artificial tooth and its photocuring dynamic molding method with gradient mechanical property |
| CN109180182B (en) * | 2018-08-28 | 2020-08-18 | 西安交通大学 | Zirconia false tooth with gradient mechanical property and photocuring dynamic forming method thereof |
| CN109676747A (en) * | 2019-02-19 | 2019-04-26 | 南通理工学院 | A kind of more material ceramics photocuring print system mechanisms and crude green body preparation method |
| CN110304930A (en) * | 2019-07-29 | 2019-10-08 | 中国科学院空间应用工程与技术中心 | It is a kind of to manufacture the soft material and preparation method thereof used for microgravity environment |
| CN111925213A (en) * | 2020-06-16 | 2020-11-13 | 季华实验室 | Tungsten carbide powder with surface coated with metal oxide layer and forming method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105837216A (en) | Preparation method of ceramic part | |
| CN105837219A (en) | Preparation method of silicon carbide ceramic part | |
| Lakhdar et al. | Additive manufacturing of advanced ceramic materials | |
| Wang et al. | Review of additive manufacturing methods for high-performance ceramic materials | |
| Moritz et al. | Additive manufacturing of ceramic components | |
| CN105665706B (en) | A kind of preparation method of metal material product | |
| CN105642882B (en) | A kind of preparation method of tungsten and tungsten alloy part | |
| CN112521130B (en) | Preparation method of ceramic part based on 3D printing technology | |
| Utela et al. | A review of process development steps for new material systems in three dimensional printing (3DP) | |
| Deckers et al. | Shaping ceramics through indirect selective laser sintering | |
| CN107353036A (en) | A kind of porous silicon nitride ceramic based on increases material manufacturing technology, its preparation method and its application | |
| CN103553632B (en) | A kind of preparation method of dense silicon nitride ceramic material | |
| US20220235194A1 (en) | Formulations for additive manufacturing of three-dimensional objects containing sinterable materials | |
| CN104628393B (en) | A kind of preparation method of high-performance ceramic | |
| CN107721408B (en) | Method for preparing beta-tricalcium phosphate porous bioceramic through 3D printing | |
| CN110028335A (en) | A kind of method of 3D printing porous ceramics organizational project product | |
| CN109761621B (en) | Method for preparing large-size silicon nitride ceramic with complex shape | |
| CN106007709A (en) | Method for preparing high-strength ceramic through gel casting | |
| US20210309575A1 (en) | Ceramic article production method and ceramic article | |
| Cai et al. | Indirect 3D printed ceramic: a literature review | |
| CN105798295B (en) | A kind of preparation method of molybdenum and molybdenum alloy part | |
| CN111825443A (en) | Preparation method of light-cured 3D-printed tricalcium phosphate/silicon dioxide composite bioceramic with Thiessen polygonal bionic structure | |
| Zhang et al. | Continuous DLP-based ceramic 3D printing using a composite oxygen-rich film | |
| CN108358648B (en) | Preparation method of ceramic target material for high-uniformity short-process electron beam physical vapor deposition thermal barrier coating | |
| US20210178484A1 (en) | Hardening method and apparatus, particularly applicable to metal and/or ceramics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |