CN106977184A - A kind of ceramic part and its production technology - Google Patents
A kind of ceramic part and its production technology Download PDFInfo
- Publication number
- CN106977184A CN106977184A CN201710149773.XA CN201710149773A CN106977184A CN 106977184 A CN106977184 A CN 106977184A CN 201710149773 A CN201710149773 A CN 201710149773A CN 106977184 A CN106977184 A CN 106977184A
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- Prior art keywords
- ceramic part
- sintering
- production technology
- parts
- injection
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 238000005516 engineering process Methods 0.000 title claims abstract description 41
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- 239000000843 powder Substances 0.000 claims abstract description 53
- 239000011230 binding agent Substances 0.000 claims abstract description 42
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 238000001746 injection moulding Methods 0.000 claims abstract description 21
- 238000005238 degreasing Methods 0.000 claims abstract description 18
- 238000004898 kneading Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
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- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 9
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- 229910052582 BN Inorganic materials 0.000 claims description 3
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- PYGXAGIECVVIOZ-UHFFFAOYSA-N Dibutyl decanedioate Chemical compound CCCCOC(=O)CCCCCCCCC(=O)OCCCC PYGXAGIECVVIOZ-UHFFFAOYSA-N 0.000 claims description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 3
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- IIGMITQLXAGZTL-UHFFFAOYSA-N octyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCCCCCCC IIGMITQLXAGZTL-UHFFFAOYSA-N 0.000 claims description 3
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
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- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims 1
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- 235000019253 formic acid Nutrition 0.000 claims 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims 1
- 238000009776 industrial production Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
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- 229910052804 chromium Inorganic materials 0.000 description 12
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- 239000012535 impurity Substances 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 12
- 229910052748 manganese Inorganic materials 0.000 description 12
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- 229910052759 nickel Inorganic materials 0.000 description 12
- 229910052758 niobium Inorganic materials 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 229910052721 tungsten Inorganic materials 0.000 description 12
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 7
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- 229910052769 Ytterbium Inorganic materials 0.000 description 6
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- 229910052718 tin Inorganic materials 0.000 description 6
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
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- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
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- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
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- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- 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
- C04B35/565—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 silicon carbide
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- C04B35/583—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 boron nitride
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- 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
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- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- 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
- C04B35/638—Removal thereof
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- 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
- C04B2235/6022—Injection moulding
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- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
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- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
Abstract
The present invention relates to powder metallurgical technology, and in particular to a kind of ceramic part and its production technology, comprises the following steps:(1)Mixing granulator:Ceramic powders are put into kneading machine and heated, binding agent is added, is kneaded, is then granulated on extruder, obtain feeding;(2)Injection moulding:Feeding is placed in injection machine, injection moulding is carried out, obtains injecting base;(3)Degreasing:Injection base is placed in air furnace and carries out thermal debinding, then the pre-sintering that heats up, taken out after furnace cooling, obtain blank;(4)Sintering:Blank is placed in sintering furnace and sintered, ceramic part is made in ground, polishing.The production technology of the present invention is by using powder injection molding process, degreasing and high temperature sintering are eventually passed through, complex-shaped high technology ceramics part can be obtained, consistency is high, product uniformity is good, one-shot forming, step is simple, convenient operation and control, steady quality, production efficiency is high, and production cost is low, can large-scale industrial production.
Description
Technical field
The present invention relates to powder metallurgical technology, and in particular to a kind of ceramic part and its production technology.
Background technology
Ceramics are widely used in precision bearing, seal, turbine machine rotor, nozzle, heat exchanger component and atomic nucleus
Pile materials etc..But, because ceramics are covalent bond very strong compounds, the characteristics of with high intensity, high rigidity, it is difficult to make
Standby complex-shaped parts, limit further applying for it.Therefore, just can be very if ceramic Complex Parts can be prepared
Expand the application of ceramics in big degree.
Powder injection-molded technology is that a kind of compound by metal or ceramic powders and binding agent is injected in mold cavity
In manufacturing process, ripe modern polymer injection moulding is combined together by it with PM technique, with once
Mold the workpiece of complicated shape, workpiece size precision it is high, without being machined and being easily achieved high-efficiency automatic production
Etc. strong point, it is particularly suitable for use in high-volume and manufactures complex-shaped, high precision, the small mechanical elements of high-performance material, is a kind of
Advanced parts machining technique, especially recent years are used widely in communications industry and more hi-tech industries,
Through as a fast-developing new technology field.
Generally obtained at present using machining, the method for grinding for labyrinth and high technology ceramics part, but process
Many, low production efficiency wastes raw material, wastes the energy.And it is complex-shaped for some, if any step, acute angle, blind hole etc.
The part of structure, common processing method is more difficult, and properties of product are not good.
The content of the invention
In order to overcome shortcoming and defect present in prior art, it is an object of the invention to provide a kind of ceramic part
Production technology, the production technology can obtain complex-shaped high technology ceramics part, and consistency is high, and product uniformity is good, once
Shaping, step is simple, convenient operation and control, steady quality, and production efficiency is high, and production cost is low, can large-scale industrial production.
Another object of the present invention is to provide a kind of ceramic part, the ceramic part consistency is high, and product uniformity is good,
Also with elevated temperature strength is big, inoxidizability is strong, wear resistance good, heat endurance is good, thermal coefficient of expansion is small, thermal conductivity is big, hardness
High and anti-thermal shock and the good characteristic such as resistant to chemical etching.
The purpose of the present invention is achieved through the following technical solutions:A kind of production technology of ceramic part, comprises the following steps:
(1)Mixing granulator:Ceramic powders are put into kneading machine and are heated to 160-200 DEG C, 0.5-1.5h is incubated, adds bonding
Agent, kneads 2-6h, is then granulated on extruder, obtain feeding;
(2)Injection moulding:Feeding is placed in injection machine, is then 120-260 DEG C, injection machine spray in barrel temperature
Sand mouth temperature is 100-240 DEG C, injection pressure is to carry out injection moulding in injection mould under conditions of 20-200MPa, is noted
Penetrate base;
(3)Degreasing:Injection base is placed in air furnace and carries out thermal debinding, in air atmosphere, is heated up with 0.4-0.6 DEG C/min fast
Rate rises to from room temperature is incubated 0.5-1.5h after 160-200 DEG C, then is heated to 360-400 DEG C with 0.5-0.7 DEG C/min heating rates
After be incubated 0.5-1.5h, then be heated to after 480-520 DEG C being incubated 1.5-2.5h with 1-2 DEG C/min heating rates;It is warming up to again
600-1000 DEG C of pre-sintering 1-5h, takes out after furnace cooling, obtains blank;
(4)Sintering:Blank is placed in sintering furnace, then the heat preservation sintering 1-3h under conditions of 1800-2200 DEG C, ground,
Polishing, is made ceramic part.
It is preferred that, the step(1)In, ceramic powders are alumina ceramic powder, zirconia ceramics powder, yittrium oxide pottery
Any one in porcelain powder, boron nitride ceramics powder and silicon carbide ceramics powder.
The present invention is by using above-mentioned ceramic powders, and obtained ceramic part consistency is high, and product uniformity is good, also has
Elevated temperature strength is big, inoxidizability is strong, wear resistance is good, heat endurance is good, thermal coefficient of expansion is small, thermal conductivity is big, hardness is high and
Anti-thermal shock and the good characteristic such as resistant to chemical etching.
It is preferred that, the step(1)In, ceramic powders are put into before kneading machine to be mixed with sintering aid, obtains mixed powder, is burnt
Knot auxiliary agent accounts for the 1%-10% of mixed powder quality, and sintering aid is B4C、WC、TiC、C、B、Al、Al3N4And Al4C3In at least one
Kind.
The present invention, can be with sinter formation solid solution, it is possible to decrease burn by adding above-mentioned sintering aid in ceramic powders
Junction temperature, increases diffusion and sintering velocity;Product cracking is also prevented from, the increase hollow site concentration of crystal accelerates sintering,
Promote densification process.
It is preferred that, the step(1)In, binding agent accounts for the 30%-50% of feeding volume, binding agent by following parts by weight original
Material composition:
40-60 parts of wax
20-40 parts of naphthalene
20-40 parts of plastics
4-8 parts of plasticizer
1-5 parts of surfactant
0.5-1.5 parts of antioxidant
0.1-0.5 parts of compatilizer.
The present invention binding agent by using the material, particularly low temperature pyrolyzer of different cracking temperatures component, using each
The wax and naphthalene of different temperatures cracking are planted, and each component is adapted.Thus the feeding of gained is molded into green compact, by using suitable
When heating rate be can be achieved binding agent variety classes material progressively removing, so as to realize quickly through thermal decomposition form
Remove binding agent.The binding agent removing time can control all to remove within a few houres totally.A variety of cracking are included in binding agent
The component of temperature, and content proportioning effect is good, can be only de- by heat, without prior solvent degreasing process.Whole skimming processes letter
Single easily-controllable, degreasing efficiency is higher, and skimming processes will not be impacted to green body quality, and clean environment firendly.
Skimming processes make the component of different cracking temperatures progressively decompose in an orderly manner by controlling heating rate, will not moment
Produce a large amount of cracking volatilization gas and the phenomenon that volume drastically expands occur, so that bulge defect will not be produced in base substrate.Due to nothing
Solvent removal process is needed, therefore base substrate will not also be produced and is swelled.Whole skimming processes are guaranteed to green body quality.
The binding agent of the present invention is directly removed by thermally decomposing form, it is not necessary to the acid catalyst of environmental effects,
Therefore it is a kind of binding agent of clean environment firendly.
Sintering furnace can be directly entered using green compact made from the binding agent of the present invention, degreasing is realized and is sintered in same set
Standby interior completion.Solvent degreasing is reduced to thermal debinding process, and degreasing is to the carrying of sintering process, so as to reduce green compact in carrying
The injury that process is caused, the catalysis degreasing green compact that especially compare are particularly easy to bad in transportation generation.
It is preferred that, the wax is at least one of atoleine, solid paraffin, microcrystalline wax and Brazil wax.
The binding agent of the present invention is easy to follow-up degreasing by using above-mentioned wax, and the blank after degreasing without deformation, crackle,
The common deficiencies such as foaming.It is more highly preferred to, the wax is with weight ratio 1 by atoleine, microcrystalline wax and Brazil wax:
0.8-1.2:1.5-2.5 the mixture of composition.
It is preferred that, the plastics are polyethylene, polypropylene, makrolon, acrylonitrile-butadiene-styrene copolymer, poly-
It is styrene, polymethyl methacrylate, copolymerized methanal, modified polylactic resin, acrylate copolymer, polyacrylamide, poly-
At least one of oxirane and ethylene-vinyl acetate copolymer.
The binding agent of the present invention is by using above-mentioned plastics, strong adaptability, raw material of the obtained binding agent to ceramic powders
It is cheap and easy to get and environmentally friendly and readily removed.It is more highly preferred to, the plastics are by polyethylene, polypropylene and ethyl vinyl acetate
Vinyl ester copolymers compare 1.4-2.2 with weight:1:1.6-2.4 the mixture of composition.
It is preferred that, the polyethylene is high density polyethylene (HDPE), medium density polyethylene, low density polyethylene (LDPE) and linea low density
At least one of polyethylene.The binding agent of the present invention is by using above-mentioned polyethylene, and obtained binding agent is to ceramic powders
Strong adaptability, raw material are cheap and easy to get and environmentally friendly and readily removed.It is more highly preferred to, the polyethylene is by high-density polyethylene
Alkene, low density polyethylene (LDPE) and LLDPE compare 0.8-1.2 with weight:0.5-1.5:The mixture of 1 composition.
The polypropylene is at least one of isotactic polypropylene, random polypropylene and syndiotactic polypropylene.It is more highly preferred to,
The binding agent of the present invention is by using above-mentioned polypropylene, and obtained binding agent is inexpensively easy to strong adaptability, the raw material of ceramic powders
Obtain and environmentally friendly and readily removed.The polypropylene is with weight by isotactic polypropylene, random polypropylene and syndiotactic polypropylene
Than 1:1.5-2.5:The mixture of 2-4 compositions.
It is preferred that, the plasticizer is dibutyl phthalate, dioctyl phthalate, the different nonyl of phthalic acid two
At least one of ester and dibutyl sebacate.The binding agent of the present invention is easy to ceramic powders by using above-mentioned plasticizer
Injection moulding.It is more highly preferred to, the plasticizer is by dibutyl phthalate, dioctyl phthalate and O-phthalic
Sour dinonyl compares 0.4-0.8 with weight:0.8-1.2:The mixture of 1 composition.
The surfactant be stearic acid, butyl stearate, octyl stearate and pentaerythritol stearate in extremely
Few one kind.The binding agent of the present invention is by using above-mentioned surfactant, and it is bad to solve powder surface wetability, reunites tight
The problem of weight, improve powder dispersibility and the compatibility with organic binder bond.It is more highly preferred to, the surfactant is by hard
Resin acid, butyl stearate and pentaerythritol stearate compare 0.5-1.5 with weight:1:1.8-2.6 the mixture of composition.
It is preferred that, the antioxidant is with weight to compare 1-2 by antioxidant 1010 and irgasfos 168:The mixture of 1 composition.
The binding agent of the present invention, as antioxidant compounding use, and controls its weight ratio by using antioxidant 1010 and irgasfos 168
For 1-2:1, obtained ceramic part has preferable antioxygenic property.
The compatilizer is superbrnaching end-hydroxy polyester.The binding agent of the present invention is made by using superbrnaching end-hydroxy polyester
For compatilizer, powder dispersibility and the compatibility with organic binder bond can be improved.
The step(2)In, mould is made up of agent structure and cylindrical male plug, and agent structure is made up of chromium steel, cylinder
Shape core is made up of high-speed steel, a diameter of 0.4-4mm of cylindrical male plug.
The chemical composition of the chromium steel includes the element of following percentage by weight:C:0.1-0.3%、N:0.01-0.05%、
Si:0.4-0.8%、Mn:0.2-0.6%、Cr:14-18%、Ni:0.3-0.7%、Mo:0.4-0.8%、Nb:0.08-0.12%、Ti:
0.04-0.08%、W:0.2-0.6%、Zr:0.02-0.06%、B:0.002-0.006%、Yb:0.1-0.5%、Sn:0.16-
0.24%th, Sc:0.04-0.08%, surplus is iron and inevitable impurity.
The chromium steel of the present invention strictly controls the percentage by weight of each element, obtained main body by using above-mentioned element
Structure has an excellent processing characteristics, corrosion resistance, wear resistance, hot-cracking resistance, up to 300 DEG C or higher of heat resistance with
And high rigidity and high rigidity.
The chemical composition of the high-speed steel includes the element of following percentage by weight:C:0.6-0.8%、Si:1.2-1.6%、
Mn:0.1-0.3%、Cr:6-8%、Ni:0.5-0.9%、Mo:2.5-4.5%、Nb:0.2-0.6%、Ti:0.4-0.8%、W:2-4%、V:
1-3%、Co:0.5-1.5%、Y:0.01-0.05%、As:0.005-0.009%、Sr:0.004-0.008%、Hf:0.001-
0.005%, surplus is iron and inevitable impurity.
The high-speed steel of the present invention strictly controls the percentage by weight of each element, obtained circle by using above-mentioned element
Cylindricality core high temperature resistant, intensity is high, and also has higher toughness, hardness, wearability, heat resistance and corrosion resistance, comprehensive
Can be excellent.
A kind of ceramic part, the ceramic part is made according to production technology described above.
The beneficial effects of the present invention are:The production technology of the present invention is by using powder injection molding process, final warp
Cross degreasing and high temperature sintering, can obtain complex-shaped high technology ceramics part, consistency is high, product uniformity is good, once into
Type, step is simple, convenient operation and control, steady quality, and production efficiency is high, and production cost is low, can large-scale industrial production.
Ceramic part consistency produced by the present invention is high, and product uniformity is good, also with elevated temperature strength is big, inoxidizability
By force, wear resistance is good, heat endurance is good, thermal coefficient of expansion is small, thermal conductivity is big, hardness is high and anti-thermal shock and resistant to chemical etching etc.
Good characteristic.
The present invention production technology use powder injection molding process, breach tradition machinery processing efficiency it is low, into
This high technology limitation, for producing complex-shaped and accurate 3C ceramic parts, there is incomparable excellent of traditional processing
Gesture.
The production technology solution powder surface wetability of the present invention is bad, the problem of reuniting serious, improves powder dispersibility
With the compatibility with organic binder bond;Boundary moisture sex chromosome mosaicism is further solved, interface bond strength is improved, to surface, crystal boundary
Controlled with dimensional structure precision, so as to ensure that material obtains good comprehensive mechanical property.
The present invention uses advanced feeding preparation method, can independently provide raw material, shortens the production cycle, improves production effect
Rate, using high vacuum environment and atmosphere sintering technique, solves the problem of traditional ceramics product guarantor type is difficult.
Embodiment
For the ease of the understanding of those skilled in the art, with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying is referred to not limitation of the invention.
Embodiment 1:A kind of production technology of ceramic part, comprises the following steps:
(1)Mixing granulator:Ceramic powders are put into kneading machine and are heated to 100 DEG C, 0.5h is incubated, adds binding agent, are kneaded
2h, is then granulated on extruder, obtains feeding;
(2)Injection moulding:Feeding is placed in injection machine, then barrel temperature be 120 DEG C, blast nozzle temperature be 100
DEG C, injection pressure be 20MPa under conditions of injection mould in carry out injection moulding, obtain inject base;
(3)Degreasing:Injection base is placed in air furnace and carries out thermal debinding, in air atmosphere, with 0.4 DEG C/min heating rates from
Room temperature rises to and 0.5h is incubated after 160 DEG C, then is heated to after 360 DEG C being incubated 0.5h with 0.5 DEG C/min heating rates, then with 1 DEG C/
Min heating rates are incubated 1.5h after being heated to 480 DEG C;600 DEG C of pre-sintering 1h are warming up to again, are taken out after furnace cooling, are obtained base
Material;
(4)Sintering:Blank is placed in sintering furnace, then the heat preservation sintering 1h under conditions of 1800 DEG C, ground, polishing, system
Obtain ceramic part.
The step(1)In, ceramic powders are alumina ceramic powder.
The step(1)In, ceramic powders are put into before kneading machine to be mixed with sintering aid, obtains mixed powder, sintering aid
The 1% of mixed powder quality is accounted for, sintering aid is B4C, WC or TiC.
The step(1)In, binding agent accounts for the 30% of feeding volume, and binding agent is made up of the raw material of following parts by weight:
40 parts of wax
20 parts of naphthalene
20 parts of plastics
4 parts of plasticizer
1 part of surfactant
0.5 part of antioxidant
0.1 part of compatilizer.
The wax is atoleine.
The plastics are polyethylene or polypropylene, makrolon.
The polyethylene is high density polyethylene (HDPE), medium density polyethylene, low density polyethylene (LDPE) or LLDPE;
The polypropylene is isotactic polypropylene, random polypropylene or syndiotactic polypropylene.
The plasticizer is dibutyl phthalate.
The surfactant is stearic acid.
The antioxidant is with weight ratio 1 by antioxidant 1010 and irgasfos 168:The mixture of 1 composition;The compatilizer
For superbrnaching end-hydroxy polyester.
A kind of ceramic part, the ceramic part is made according to production technology described above.
Embodiment 2:A kind of production technology of ceramic part, comprises the following steps:
(1)Mixing granulator:Ceramic powders are put into kneading machine and are heated to 12 DEG C, 0.8h is incubated, adds binding agent, are kneaded
3h, is then granulated on extruder, obtains feeding;
(2)Injection moulding:Feeding is placed in injection machine, then barrel temperature be 160 DEG C, blast nozzle temperature be 140
DEG C, injection pressure be 50MPa under conditions of injection mould in carry out injection moulding, obtain inject base;
(3)Degreasing:Injection base is placed in air furnace and carries out thermal debinding, in air atmosphere, with 0.5 DEG C/min heating rates from
Room temperature rises to and 0.8h is incubated after 170 DEG C, then is heated to 0.6 DEG C/min heating rates being incubated 0.8h after 370 DEG C, then with 1.2
DEG C/min heating rates are incubated 1.8h after being heated to 490 DEG C;700 DEG C of pre-sintering 2h are warming up to again, are taken out, are obtained after furnace cooling
Blank;
(4)Sintering:Blank is placed in sintering furnace, then the heat preservation sintering 1.5h under conditions of 1900 DEG C, ground, polishing,
Ceramic part is made.
The step(1)In, ceramic powders are zirconia ceramics powder.
The step(1)In, ceramic powders are put into before kneading machine to be mixed with sintering aid, obtains mixed powder, sintering aid
The 3% of mixed powder quality is accounted for, sintering aid is C.
The step(1)In, binding agent accounts for the 35% of feeding volume, and binding agent is made up of the raw material of following parts by weight:
45 parts of wax
25 parts of naphthalene
25 parts of plastics
5 parts of plasticizer
2 parts of surfactant
0.8 part of antioxidant
0.2 part of compatilizer.
The wax is solid paraffin.
The plastics are makrolon, acrylonitrile-butadiene-styrene copolymer or polystyrene.
The plasticizer is dioctyl phthalate.
The surfactant is butyl stearate.
The antioxidant is with weight ratio 1.2 by antioxidant 1010 and irgasfos 168:The mixture of 1 composition;It is described compatible
Agent is superbrnaching end-hydroxy polyester.
A kind of ceramic part, the ceramic part is made according to production technology described above.
Embodiment 3:A kind of production technology of ceramic part, comprises the following steps:
(1)Mixing granulator:Ceramic powders are put into kneading machine and are heated to 150 DEG C, 1h is incubated, binding agent is added, 4h is kneaded,
Then granulated on extruder, obtain feeding;
(2)Injection moulding:Feeding is placed in injection machine, then barrel temperature be 180 DEG C, blast nozzle temperature be 180
DEG C, injection pressure be 100MPa under conditions of injection mould in carry out injection moulding, obtain inject base;
(3)Degreasing:Injection base is placed in air furnace and carries out thermal debinding, in air atmosphere, with 0.5 DEG C/min heating rates from
Room temperature rises to and 1h is incubated after 180 DEG C, then is heated to after 380 DEG C being incubated 1h with 0.6 DEG C/min heating rates, then with 1.5 DEG C/
Min heating rates are incubated 2h after being heated to 500 DEG C;800 DEG C of pre-sintering 3h are warming up to again, are taken out after furnace cooling, are obtained blank;
(4)Sintering:Blank is placed in sintering furnace, then the heat preservation sintering 2h under conditions of 2000 DEG C, ground, polishing, system
Obtain ceramic part.
The step(1)In, ceramic powders are yttrium powder.
The step(1)In, ceramic powders are put into before kneading machine to be mixed with sintering aid, obtains mixed powder, sintering aid
The 5% of mixed powder quality is accounted for, sintering aid is B.
The step(1)In, binding agent accounts for the 40% of feeding volume, and binding agent is made up of the raw material of following parts by weight:
50 parts of wax
30 parts of naphthalene
30 parts of plastics
6 parts of plasticizer
3 parts of surfactant
1 part of antioxidant
1 part of compatilizer.
The wax is microcrystalline wax.
The plastics are polymethyl methacrylate, copolymerized methanal or modified polylactic resin.
The plasticizer is diisononyl phthalate.
The surfactant is octyl stearate.
The antioxidant is with weight ratio 1.5 by antioxidant 1010 and irgasfos 168:The mixture of 1 composition;It is described compatible
Agent is superbrnaching end-hydroxy polyester.
A kind of ceramic part, the ceramic part is made according to production technology described above.
Embodiment 4:A kind of production technology of ceramic part, comprises the following steps:
(1)Mixing granulator:Ceramic powders are put into kneading machine and are heated to 180 DEG C, 1.2h is incubated, adds binding agent, are kneaded
5h, is then granulated on extruder, obtains feeding;
(2)Injection moulding:Feeding is placed in injection machine, then barrel temperature be 2200 DEG C, blast nozzle temperature be 200
DEG C, injection pressure be 150MPa under conditions of injection mould in carry out injection moulding, obtain inject base;
(3)Degreasing:Injection base is placed in air furnace and carries out thermal debinding, in air atmosphere, with 0.5 DEG C/min heating rates from
Room temperature rises to and 1.2h is incubated after 190 DEG C, then is heated to 0.6 DEG C/min heating rates being incubated 1.2h after 390 DEG C, then with 1.8
DEG C/min heating rates are incubated 2.2h after being heated to 510 DEG C;900 DEG C of pre-sintering 4h are warming up to again, are taken out, are obtained after furnace cooling
Blank;
(4)Sintering:Blank is placed in sintering furnace, then the heat preservation sintering 1.8h under conditions of 2100 DEG C, ground, polishing,
Ceramic part is made.
The step(1)In, ceramic powders are boron nitride ceramics powder.
The step(1)In, ceramic powders are put into before kneading machine to be mixed with sintering aid, obtains mixed powder, sintering aid
The 8% of mixed powder quality is accounted for, sintering aid is Al.
The step(1)In, binding agent accounts for the 45% of feeding volume, and binding agent is made up of the raw material of following parts by weight:
55 parts of wax
35 parts of naphthalene
35 parts of plastics
7 parts of plasticizer
4 parts of surfactant
1.2 parts of antioxidant
0.4 part of compatilizer.
The wax is Brazil wax.
The plastics are acrylate copolymer or polyacrylamide.
The plasticizer is dibutyl sebacate.
The surfactant is pentaerythritol stearate.
The antioxidant is with weight ratio 1.8 by antioxidant 1010 and irgasfos 168:The mixture of 1 composition;It is described compatible
Agent is superbrnaching end-hydroxy polyester.
A kind of ceramic part, the ceramic part is made according to production technology described above.
Embodiment 5:A kind of production technology of ceramic part, comprises the following steps:
(1)Mixing granulator:Ceramic powders are put into kneading machine and are heated to 200 DEG C, 1.5h is incubated, adds binding agent, are kneaded
6h, is then granulated on extruder, obtains feeding;
(2)Injection moulding:Feeding is placed in injection machine, then barrel temperature be 260 DEG C, blast nozzle temperature be 240
DEG C, injection pressure be 200MPa under conditions of injection mould in carry out injection moulding, obtain inject base;
(3)Degreasing:Injection base is placed in air furnace and carries out thermal debinding, in air atmosphere, with 0.6 DEG C/min heating rates from
Room temperature rises to and 1.5h is incubated after 200 DEG C, then is heated to after 400 DEG C being incubated 1.5h with 0.7 DEG C/min heating rates, then with 2 DEG C/
Min heating rates are incubated 2.5h after being heated to 520 DEG C;1000 DEG C of pre-sintering 5h are warming up to again, are taken out after furnace cooling, are obtained base
Material;
(4)Sintering:Blank is placed in sintering furnace, then the heat preservation sintering 3h under conditions of 2200 DEG C, ground, polishing, system
Obtain ceramic part.
The step(1)In, ceramic powders are silicon carbide ceramics powder.
The step(1)In, ceramic powders are put into before kneading machine to be mixed with sintering aid, obtains mixed powder, sintering aid
The 10% of mixed powder quality is accounted for, sintering aid is Al3N4Or Al4C3。
The step(1)In, binding agent accounts for the 50% of feeding volume, and binding agent is made up of the raw material of following parts by weight:
60 parts of wax
40 parts of naphthalene
40 parts of plastics
8 parts of plasticizer
5 parts of surfactant
1.5 parts of antioxidant
0.5 part of compatilizer.
The wax is Brazil wax.
The plastics are PEO or ethylene-vinyl acetate copolymer.
The plasticizer is dibutyl phthalate.
The surfactant is stearic acid.
The antioxidant is with weight ratio 2 by antioxidant 1010 and irgasfos 168:The mixture of 1 composition;The compatilizer
For superbrnaching end-hydroxy polyester.
A kind of ceramic part, the ceramic part is made according to production technology described above.
Embodiment 6:The difference of the present embodiment and above-described embodiment 1 is:The wax is by atoleine, microlite
Wax and Brazil wax are with weight ratio 1:0.8:The mixture of 1.5 compositions.
The plastics are with weight ratio 1.4 by polyethylene, polypropylene and ethylene-vinyl acetate copolymer:1:1.6 composition
Mixture.
The polyethylene is with weight ratio 0.8 by high density polyethylene (HDPE), low density polyethylene (LDPE) and LLDPE:
0.5:The mixture of 1 composition.
The polypropylene is with weight ratio 1 by isotactic polypropylene, random polypropylene and syndiotactic polypropylene:1.5:2 compositions
Mixture.
The plasticizer be by dibutyl phthalate, dioctyl phthalate and diisononyl phthalate with
Weight compares 0.4:0.8:The mixture of 1 composition.
The surfactant is with weight ratio 0.5 by stearic acid, butyl stearate and pentaerythritol stearate:1:
The mixture of 1.8 compositions.
Embodiment 7:The difference of the present embodiment and above-described embodiment 2 is:
The wax is with weight ratio 1 by atoleine, microcrystalline wax and Brazil wax:0.9:The mixture of 1.8 compositions.
The plastics are with weight ratio 1.6 by polyethylene, polypropylene and ethylene-vinyl acetate copolymer:1:1.8 composition
Mixture.
The polyethylene is with weight ratio 0.9 by high density polyethylene (HDPE), low density polyethylene (LDPE) and LLDPE:
0.8:The mixture of 1 composition.
The polypropylene is with weight ratio 1 by isotactic polypropylene, random polypropylene and syndiotactic polypropylene:1.8:2.5 composition
Mixture.
The plasticizer be by dibutyl phthalate, dioctyl phthalate and diisononyl phthalate with
Weight compares 0.5:0.9:The mixture of 1 composition.
The surfactant is with weight ratio 0.8 by stearic acid, butyl stearate and pentaerythritol stearate:1:2
The mixture of composition.
Embodiment 8:The difference of the present embodiment and above-described embodiment 3 is:The wax is by atoleine, microlite
Wax and Brazil wax are with weight ratio 1:1:The mixture of 2 compositions.
The plastics are with weight ratio 1.8 by polyethylene, polypropylene and ethylene-vinyl acetate copolymer:1:2 compositions
Mixture.
The polyethylene is with weight ratio 1 by high density polyethylene (HDPE), low density polyethylene (LDPE) and LLDPE:1:
The mixture of 1 composition.
The polypropylene is with weight ratio 1 by isotactic polypropylene, random polypropylene and syndiotactic polypropylene:2:3 compositions it is mixed
Compound.
The plasticizer be by dibutyl phthalate, dioctyl phthalate and diisononyl phthalate with
Weight compares 0.6:1:The mixture of 1 composition.
The surfactant is with weight ratio 1 by stearic acid, butyl stearate and pentaerythritol stearate:1:2.2
The mixture of composition.
Embodiment 9:The difference of the present embodiment and above-described embodiment 4 is:
The wax is with weight ratio 1 by atoleine, microcrystalline wax and Brazil wax:1.1:The mixture of 2.2 compositions.
The plastics are with weight ratio 2 by polyethylene, polypropylene and ethylene-vinyl acetate copolymer:1:2.2 compositions
Mixture.
The polyethylene is with weight ratio 1.1 by high density polyethylene (HDPE), low density polyethylene (LDPE) and LLDPE:
1.2:The mixture of 1 composition.
The polypropylene is with weight ratio 1 by isotactic polypropylene, random polypropylene and syndiotactic polypropylene:2.2:3.5 composition
Mixture.
The plasticizer be by dibutyl phthalate, dioctyl phthalate and diisononyl phthalate with
Weight compares 0.7:1.1:The mixture of 1 composition.
The surfactant is with weight ratio 1.2 by stearic acid, butyl stearate and pentaerythritol stearate:1:
The mixture of 2.4 compositions.
Embodiment 10:The difference of the present embodiment and above-described embodiment 5 is:The wax is by atoleine, crystallite
Paraffin and Brazil wax are with weight ratio 1:1.2:The mixture of 2.5 compositions.
The plastics are with weight ratio 2.2 by polyethylene, polypropylene and ethylene-vinyl acetate copolymer:1:2.4 composition
Mixture.
The polyethylene is with weight ratio 1.2 by high density polyethylene (HDPE), low density polyethylene (LDPE) and LLDPE:
1.5:The mixture of 1 composition.
The polypropylene is with weight ratio 1 by isotactic polypropylene, random polypropylene and syndiotactic polypropylene:2.5:4 compositions
Mixture.
The plasticizer be by dibutyl phthalate, dioctyl phthalate and diisononyl phthalate with
Weight compares 0.8:1.2:The mixture of 1 composition.
The surfactant is with weight ratio 1.5 by stearic acid, butyl stearate and pentaerythritol stearate:1:
The mixture of 2.6 compositions.
Embodiment 11:The difference of the present embodiment and above-described embodiment 1 is:The step(2)In, mould is by main body
Structure and cylindrical male plug composition, agent structure are made up of chromium steel, and cylindrical male plug is made up of high-speed steel, cylindrical type core diameter
0.4mm。
The chemical composition of the chromium steel includes the element of following percentage by weight:C:0.1%、N:0.01%、Si:0.4%、Mn:
0.2%、Cr:14%、Ni:0.3%、Mo:0.4%、Nb:0.08%、Ti:0.04%、W:0.2%、Zr:0.02%、B:0.002%、Yb:
0.1%、Sn:0.16%th, Sc:0.04%, surplus is iron and inevitable impurity.
The chemical composition of the high-speed steel includes the element of following percentage by weight:C:0.6%、Si:1.2%、Mn:0.1%、
Cr:6%、Ni:0.5%、Mo:2.5%、Nb:0.2%、Ti:0.4%、W:2%、V:1%、Co:0.5%、Y:0.01%、As:0.005%、Sr:
0.004%、Hf:0.001%, surplus is iron and inevitable impurity.
Embodiment 12:The difference of the present embodiment and above-described embodiment 2 is:The step(2)In, mould is by main body
Structure and cylindrical male plug composition, agent structure are made up of chromium steel, and cylindrical male plug is made up of high-speed steel, cylindrical type core diameter
1mm。
The chemical composition of the chromium steel includes the element of following percentage by weight:C:0.15%、N:0.02%、Si:0.5%、
Mn:0.3%、Cr:15%、Ni:0.4%、Mo:0.5%、Nb:0.09%、Ti:0.05%、W:0.3%、Zr:0.03%、B:0.003%、Yb:
0.2%、Sn:0.18%th, Sc:0.06%, surplus is iron and inevitable impurity.
The chemical composition of the high-speed steel includes the element of following percentage by weight:C:0.66%、Si:1.3%、Mn:
0.15%、Cr:6.5%、Ni:0.6%、Mo:3%、Nb:0.3%、Ti:0.5%、W:2.5%、V:1.5%、Co:0.8%、Y:0.02%、As:
0.006%、Sr:0.005%、Hf:0.002%, surplus is iron and inevitable impurity.
Embodiment 13:The difference of the present embodiment and above-described embodiment 3 is:The step(2)In, mould is by main body
Structure and cylindrical male plug composition, agent structure are made up of chromium steel, and cylindrical male plug is made up of high-speed steel, cylindrical type core diameter
3mm。
The chemical composition of the chromium steel includes the element of following percentage by weight:C:0.2%、N:0.03%、Si:0.6%、Mn:
0.4%、Cr:16%、Ni:0.5%、Mo:0.6%、Nb:0.1%、Ti:0.06%、W:0.4%、Zr:0.04%、B:0.004%、Yb:
0.3%、Sn:0.2%th, Sc:0.06%, surplus is iron and inevitable impurity.
The chemical composition of the high-speed steel includes the element of following percentage by weight:C:0.7%、Si:1.4%、Mn:0.2%、
Cr:7%、Ni:0.7%、Mo:3.5%、Nb:0.4%、Ti:0.6%、W:3%、V:2%、Co:1%、Y:0.03%、As:0.007%、Sr:
0.006%、Hf:0.003%, surplus is iron and inevitable impurity.
Embodiment 14:The difference of the present embodiment and above-described embodiment 4 is:The step(2)In, mould is by main body
Structure and cylindrical male plug composition, agent structure are made up of chromium steel, and cylindrical male plug is made up of high-speed steel, cylindrical type core diameter
3mm。
The chemical composition of the chromium steel includes the element of following percentage by weight:C:0.25%、N:0.04%、Si:0.7%、
Mn:0.5%、Cr:17%、Ni:0.6%、Mo:0.7%、Nb:0.11%、Ti:0.07%、W:0.5%、Zr:0.05%、B:0.005%、Yb:
0.4%、Sn:0.22%th, Sc:0.07%, surplus is iron and inevitable impurity.
The chemical composition of the high-speed steel includes the element of following percentage by weight:C:0.75%、Si:1.5%、Mn:
0.25%、Cr:7.5%、Ni:0.8%、Mo:4%、Nb:0.5%、Ti:0.7%、W:3.5%、V:2.5%、Co:1.2%、Y:0.04%、As:
0.008%、Sr:0.007%、Hf:0.004%, surplus is iron and inevitable impurity.
Embodiment 15:The difference of the present embodiment and above-described embodiment 5 is:The step(2)In, mould is by main body
Structure and cylindrical male plug composition, agent structure are made up of chromium steel, and cylindrical male plug is made up of high-speed steel, cylindrical type core diameter
4mm。
The chemical composition of the chromium steel includes the element of following percentage by weight:C:0.3%、N:0.05%、Si:0.8%、Mn:
0.6%、Cr:18%、Ni:0.7%、Mo:0.8%、Nb:0.12%、Ti:0.08%、W:0.6%、Zr:0.06%、B:0.006%、Yb:
0.5%、Sn:0.24%th, Sc:0.08%, surplus is iron and inevitable impurity.
The chemical composition of the high-speed steel includes the element of following percentage by weight:C:0.8%、Si:1.6%、Mn:0.3%、
Cr:8%、Ni:0.9%、Mo:4.5%、Nb:0.6%、Ti:0.8%、W:4%、V:3%、Co:1.5%、Y:0.05%、As:0.009%、Sr:
0.008%、Hf:0.005%, surplus is iron and inevitable impurity.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can be realized with other manner,
Any obvious replacement is within protection scope of the present invention on the premise of not departing from present inventive concept.
Claims (10)
1. a kind of production technology of ceramic part, it is characterised in that:Comprise the following steps:
(1)Mixing granulator:Ceramic powders are put into kneading machine and are heated to 160-200 DEG C, 0.5-1.5h is incubated, adds bonding
Agent, kneads 2-6h, is then granulated on extruder, obtain feeding;
(2)Injection moulding:Feeding is placed in injection machine, is then 120-260 DEG C, injection machine spray in barrel temperature
Sand mouth temperature is 100-240 DEG C, injection pressure is to carry out injection moulding in injection mould under conditions of 20-200MPa, is noted
Penetrate base;
(3)Degreasing:Injection base is placed in air furnace and carries out thermal debinding, in air atmosphere, is heated up with 0.4-0.6 DEG C/min fast
Rate rises to from room temperature is incubated 0.5-1.5h after 160-200 DEG C, then is heated to 360-400 DEG C with 0.5-0.7 DEG C/min heating rates
After be incubated 0.5-1.5h, then be heated to after 480-520 DEG C being incubated 1.5-2.5h with 1-2 DEG C/min heating rates;It is warming up to again
600-1000 DEG C of pre-sintering 1-5h, takes out after furnace cooling, obtains blank;
(4)Sintering:Blank is placed in sintering furnace, then the heat preservation sintering 1-3h under conditions of 1800-2200 DEG C, ground,
Polishing, is made ceramic part.
2. a kind of production technology of ceramic part according to claim 1, it is characterised in that:The step(1)In, ceramics
Powder is alumina ceramic powder, zirconia ceramics powder, yttrium powder, boron nitride ceramics powder and silicon carbide ceramics
Any one in powder.
3. a kind of production technology of ceramic part according to claim 1, it is characterised in that:The step(1)In, ceramics
Powder is put into before kneading machine to be mixed with sintering aid, obtains mixed powder, and sintering aid accounts for the 1%-10% of mixed powder quality, and sintering is helped
Agent is B4C、WC、TiC、C、B、Al、Al3N4And Al4C3At least one of.
4. a kind of production technology of ceramic part according to claim 1, it is characterised in that:The step(1)In, bond
Agent accounts for the 30%-50% of feeding volume, and binding agent is made up of the raw material of following parts by weight:
40-60 parts of wax
20-40 parts of naphthalene
20-40 parts of plastics
4-8 parts of plasticizer
1-5 parts of surfactant
0.5-1.5 parts of antioxidant
0.1-0.5 parts of compatilizer.
5. a kind of production technology of ceramic part according to claim 1, it is characterised in that:The wax be atoleine,
At least one of solid paraffin, microcrystalline wax and Brazil wax.
6. a kind of production technology of ceramic part according to claim 1, it is characterised in that:The plastics be polyethylene,
Polypropylene, makrolon, acrylonitrile-butadiene-styrene copolymer, polystyrene, polymethyl methacrylate, copolymerization first
Aldehyde, modified polylactic resin, acrylate copolymer, polyacrylamide, PEO and ethylene-vinyl acetate copolymer
At least one of.
7. a kind of production technology of ceramic part according to claim 1, it is characterised in that:The polyethylene is high density
At least one of polyethylene, medium density polyethylene, low density polyethylene (LDPE) and LLDPE;The polypropylene for etc.
At least one of isotactic polypropylene, random polypropylene and syndiotactic polypropylene.
8. a kind of production technology of ceramic part according to claim 1, it is characterised in that:The plasticizer is adjacent benzene two
At least one of formic acid dibutyl ester, dioctyl phthalate, diisononyl phthalate and dibutyl sebacate;It is described
Surfactant is at least one of stearic acid, butyl stearate, octyl stearate and pentaerythritol stearate.
9. a kind of production technology of ceramic part according to claim 1, it is characterised in that:The antioxidant is by antioxygen
Agent 1010 and irgasfos 168 compare 1-2 with weight:The mixture of 1 composition;The compatilizer is superbrnaching end-hydroxy polyester.
10. a kind of ceramic part, it is characterised in that:Production work of the ceramic part according to claim any one of 1-9
Skill is made.
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