CN105693255A - Method for producing transparent ceramic component by injection molding - Google Patents

Method for producing transparent ceramic component by injection molding Download PDF

Info

Publication number
CN105693255A
CN105693255A CN201610079680.XA CN201610079680A CN105693255A CN 105693255 A CN105693255 A CN 105693255A CN 201610079680 A CN201610079680 A CN 201610079680A CN 105693255 A CN105693255 A CN 105693255A
Authority
CN
China
Prior art keywords
ceramic
powder
ceramic powder
surface modification
defat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610079680.XA
Other languages
Chinese (zh)
Inventor
刘伟
陈健
周茂鹏
伍海东
伍尚华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong University of Technology
Original Assignee
Guangdong University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong University of Technology filed Critical Guangdong University of Technology
Priority to CN201610079680.XA priority Critical patent/CN105693255A/en
Priority to PCT/CN2016/075447 priority patent/WO2017133049A1/en
Publication of CN105693255A publication Critical patent/CN105693255A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C04B35/01—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
    • 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
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • 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
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646—Optical properties
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646—Optical properties
    • C04B2235/9653—Translucent or transparent ceramics other than alumina

Abstract

A method for producing a transparent ceramic component by injection molding includes the steps of (1), subjecting ceramic powder to surface modification to enable a surface modifier to form a nanoscale organic acid coating layer on the ceramic powder surface so as to obtain surface-modified ceramic powder; (2), subjecting the surface-modified ceramic powder and a binder system to ceramic injection feedstock mixing; (3), performing injection molding to obtain a ceramic body; (4), degreasing the ceramic body; (5), sintering the degreased ceramic body so as to obtain a finished product, namely the transparent ceramic component.The method for producing the transparent ceramic component by injection molding is capable of producing high-performance transparent ceramic components in complicated shapes, and the produced transparent ceramic components are fine and highly compact in microscopic structure and excellent in performance.

Description

The method of crystalline ceramics parts is prepared in a kind of injection moulding
Technical field
The present invention relates to crystalline ceramics preparing technical field, particularly to a kind of method that crystalline ceramics parts are prepared in injection moulding。
Background technology
Transparent ceramic material has the attribute that the structural ceramicss such as high temperature resistant, corrosion-resistant, high intensity, high rigidity, chemical stability and biocompatibility are intrinsic, it is provided simultaneously with the functional characteristics such as printing opacity, wave transparent, laser, is more and more widely applied in high-tech areas such as the energy, machinery, military project, electronics, quasiconductor, medical science。Since the sixties in last century, the aspects such as the synthesis of transparent ceramic material, sintering, crystal structure, performance, printing opacity mechanism and application have been done many explorations and research work by ceramic material scientist。As have studied oxidic transparent pottery and the Non-oxide Transparent Ceramics such as aluminium nitride, Sialon such as aluminium oxide, yttrium-aluminium-garnet, yittrium oxide, magnesium oxide, magnesium aluminate spinel。But, development along with science and technology, the preparation of crystalline ceramics performance be it is also proposed higher requirement, such as, transparent alumina ceramics discharge tube in ceramic gold-halogen lamp, transparent alumina ceramics holding groove, transparent Indium zircon ceramic camera lens, yag laser crystalline ceramics, crystalline ceramics plate armour and magnesium-aluminum spinel ceramic trousers。
The forming method that the many employings of current crystalline ceramics are traditional, such as dry-pressing, slip casting, isostatic pressing, these traditional molding methods are not particularly suited for the transparent ceramic material of preparation precision, the high-performance of complicated shape, high reliability, as having the transparent alumina bracket of better application prospect, ceramic gold-halogen lamp discharge tube at orthodontics at present。In traditional forming method, although ceramic dry-pressed efficiency is higher, but there is the phenomenon that density variation, microstructure are uneven, simultaneously not easy-formation form parts。Though the plastic special-shaped product of ceramic grout molding, but molding blank is easily generated density unevenness and component segregation, compact dimensions precision is low and degradation problem under product reliability。Cold isostatic compaction can obtain the molding blank of high density and high uniformity, but is difficult to the ceramic part that forming shape is complicated, and shaping efficiency is low and manual operations is many。
Therefore, not enough for prior art, it is provided that a kind of possess dead size, in high precision, high density, high uniformity and the preparation high-performance that is suitable for, complicated form part forming method to overcome prior art deficiency very necessary。
Summary of the invention
A kind of method that it is an object of the invention to avoid the deficiencies in the prior art part and provide injection moulding to prepare crystalline ceramics parts, it is possible to prepare the crystalline ceramics parts of dead size, high-performance, complicated complicated shape。
The above-mentioned purpose of the present invention is realized by following technological means。
A kind of method providing injection moulding to prepare crystalline ceramics parts, comprises the steps:
(1) ceramic powder surface modification, makes surface modifier form one layer of nano level organic acid clad on ceramic powders surface, obtains surface modification ceramic powder；
(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing；
(3) injection moulding obtains ceramic body；
(4) ceramic body is carried out defat；
(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。
Preferably, adopt in above-mentioned steps (1) purity more than 99.9%, particle size is that the ceramic powder of submicron order carries out surface modification as raw material。
Preferably, the surface modifier used in above-mentioned steps (1) is any one in stearic acid, oleic acid or dodecyl stearic acid, and the content of surface modifier accounts for the 1.5～3% of ceramic powder weight。
Preferably, surface modifier is specifically mixed by above-mentioned steps (1) with ceramic powder, makes surface modifier and ceramic powder generation esterification obtain surface modification ceramic powder by ball milling。
Preferably, in above-mentioned steps (1), ball-milling medium is ethanol, and Ball-milling Time is 3～12h。
Preferably, during above-mentioned steps (2) ceramic injection feeding is mixing, surface modification ceramic powder and bonding dosing systems constitute injection molding mixture；
By weight percentage, surface modification ceramic powder accounts for the percentage by weight of injection molding mixture is 58～65%；
Caking agent series is made up of polyethylene, polypropylene, paraffin, stearic acid and plasticizer, by weight percentage, polyethylene accounts for the 8～20% of caking agent series, polypropylene accounts for the 8～20% of caking agent series, paraffin accounts for the 54～65% of caking agent series, stearic acid accounts for the 5～10% of caking agent series, and plasticizer accounts for the 4～8% of caking agent series。
Preferably, above-mentioned steps (2) ceramic injection feeding mixing process specifically includes:
First the double; two roller mill of preheating, after the temperature of roller reaches 170 DEG C, gap between two rollers adds polyethylene and polypropylene, after polyethylene, polypropylene are completely melted, add surface modification ceramic powders, paraffin and stearic acid, mixing 30～45min, adds plasticizer before mixing end in 3～5min。
Preferably, it is adopt solvent extraction defat, in conjunction with two step defat methods of thermal debinding, ceramic body is carried out defat that ceramic body is carried out defat by above-mentioned (4), specifically includes:
(4.1) solvent extraction defat: adopt kerosene as organic solvent, is extraction 4～12h at 40～60 DEG C in extraction temperature, is then placed in baking oven at the temperature of 80～100 DEG C dry 20-50 minute；
(4.2) thermal debinding: being inserted by the ceramic body after solvent extraction defat and carry out thermal debinding in Muffle furnace, the heating curve of thermal debinding is: rise to 80 DEG C from room temperature in 4h, is incubated 1.5～3h；Then in 3h, rise to 150 DEG C from 80 DEG C, be incubated 1.5～3h；Then in 4h, rise to 250 DEG C from 150 DEG C, be incubated 1.5～3h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 2.5～3.5h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 2.5～3.5h；Then in 4h, rise to 450 DEG C from 350 DEG C, be incubated 2.5～3.5h；Finally in 4h, rise to 500 DEG C from 450 DEG C, be incubated 2.5～3.5h；Whole thermal debinding process control is in 44h。
Preferably, above-mentioned steps (4.2) thermal debinding process adopts buried powder mode to carry out, and the powder body that buried powder adopts is α-Al2O3Powder, zirconia powder, γ-Al2O3Any one in powder, activated carbon powder。
Preferably, above-mentioned steps (5) adopt atmosphere sintering, hot pressed sintering or normal pressure-sintered after carry out again through any one mode in HIP sintering mode。
The method of crystalline ceramics parts is prepared in the injection moulding of the present invention, comprises the steps: (1) ceramic powder surface modification, makes surface modifier form one layer of nano level organic acid clad on ceramic powders surface, obtains surface modification ceramic powder；(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing；(3) injection moulding obtains ceramic body；(4) ceramic body is carried out defat；(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。The method of the present invention can prepare the crystalline ceramics parts of high-performance, complicated shape, and prepared crystalline ceramics parts fine microstructure, compactness are good, function admirable。
Figure of description
In conjunction with accompanying drawing, the present invention is further explained explanation, but the content in accompanying drawing is not construed as limiting the invention。
Fig. 1 is the ceramic particle transmission electron microscope figure of surface modification alumina ceramic powder in the embodiment of the present invention 5。
Fig. 2 is the powder body Fourier infrared analysis result figure of alumina ceramic powder in the embodiment of the present invention 5, the alumina ceramic powder of surface modification and stearic acid。
Fig. 3 is the scanning electron microscope surface topography map of the transparent alumina ceramics in the embodiment of the present invention 5 after sintering。
Fig. 4 is the schematic diagram of the some of complex shaped transparent ceramic component prepared by the method for the present invention in the embodiment of the present invention 5。
Detailed description of the invention
The invention will be further described with the following Examples。
Embodiment 1。
The method of crystalline ceramics parts is prepared in a kind of injection moulding, comprises the steps:
(1) ceramic powder surface modification, makes surface modifier form one layer of nano level organic acid clad on ceramic powders surface, obtains surface modification ceramic powder。
Wherein, adopt in step (1) purity more than 99.9%, particle size is that the ceramic powder of submicron order carries out surface modification as raw material。
The surface modifier used in step (1) is any one in stearic acid, oleic acid or dodecyl stearic acid, and the content of surface modifier accounts for the 1.5～3% of ceramic powder weight。
Process of Surface Modification is to be mixed with ceramic powder by surface modifier, makes surface modifier and ceramic powder generation esterification obtain surface modification ceramic powder by ball milling。Ball-milling medium is ethanol, and Ball-milling Time is 3～12h。
Surface modifier is introduced ceramic powder by ball milling method and carries out surface modification in advance by the present embodiment, forms one layer of nano level organic acid clad by the esterification occurred between surface modifier and ceramic powder at ceramic surface。Different from introducing surface modifier in mix stage in prior art, the process of the present invention is able to ensure that whole preparation technology effectively carries out, the high performance crystalline ceramics parts of final acquisition。
Step (2) is entered mixing after ceramic powder surface modification。
(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing。During step (2) ceramic injection feeding is mixing, surface modification ceramic powder and bonding dosing systems constitute injection molding mixture。By weight percentage, surface modification ceramic powder accounts for the percentage by weight of injection molding mixture is 58～65%。
Caking agent series is made up of polyethylene, polypropylene, paraffin, stearic acid and plasticizer, by weight percentage, polyethylene accounts for the 8～20% of caking agent series, polypropylene accounts for the 8～20% of caking agent series, paraffin accounts for the 54～65% of caking agent series, stearic acid accounts for the 5～10% of caking agent series, and plasticizer accounts for the 4～8% of caking agent series。
(3) injection moulding obtains ceramic body。
(4) ceramic body being carried out defat, defat can adopt thermal debinding, it would however also be possible to employ two step defat methods。
(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。
The method of the present invention can prepare the crystalline ceramics parts of high-performance, complicated shape, and prepared crystalline ceramics parts fine microstructure, compactness are good, function admirable。
Embodiment 2。
The method of crystalline ceramics parts is prepared in a kind of injection moulding, comprises the steps:
(1) ceramic powder surface modification, makes surface modifier form one layer of nano level organic acid clad on ceramic powders surface, obtains surface modification ceramic powder。
Wherein, adopt in step (1) purity more than 99.9%, particle size is that the ceramic powder of submicron order carries out surface modification as raw material。
The surface modifier used in step (1) is any one in stearic acid, oleic acid or dodecyl stearic acid, and the content of surface modifier accounts for the 2% of ceramic powder weight。
Process of Surface Modification is to be mixed with ceramic powder by surface modifier, makes surface modifier and ceramic powder generation esterification obtain surface modification ceramic powder by ball milling。Ball-milling medium is ethanol, and Ball-milling Time is 3～12h。
Surface modifier is introduced ceramic powder by ball milling method and carries out surface modification in advance by the present embodiment, forms one layer of nano level organic acid clad by the esterification occurred between surface modifier and ceramic powder at ceramic surface。Different from introducing surface modifier in mix stage in prior art, the process of the present invention is able to ensure that whole preparation technology effectively carries out, the high performance crystalline ceramics parts of final acquisition。
Step (2) is entered mixing after ceramic powder surface modification。
(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing。During step (2) ceramic injection feeding is mixing, surface modification ceramic powder and bonding dosing systems constitute injection molding mixture。By weight percentage, surface modification ceramic powder accounts for the percentage by weight of injection molding mixture is 58～65%。
Caking agent series is made up of polyethylene, polypropylene, paraffin, stearic acid and plasticizer, by weight percentage, polyethylene accounts for the 8～20% of caking agent series, polypropylene accounts for the 8～20% of caking agent series, paraffin accounts for the 54～65% of caking agent series, stearic acid accounts for the 5～10% of caking agent series, and plasticizer accounts for the 4～8% of caking agent series。
Ceramic injection feeding mixing process specifically includes:
First the double; two roller mill of preheating, after the temperature of roller reaches 170 DEG C, gap between two rollers adds polyethylene and polypropylene, after polyethylene, polypropylene are completely melted, add surface modification ceramic powders, paraffin and stearic acid, mixing 30～45min, adds plasticizer before mixing end in 3～5min。
(3) injection moulding obtains ceramic body。
(4) ceramic body is carried out defat。Defat is to adopt solvent extraction defat, in conjunction with two step defat methods of thermal debinding, ceramic body is carried out defat, specifically includes:
(4.1) solvent extraction defat: adopt kerosene as organic solvent, is extraction 4～12h at 40～60 DEG C in extraction temperature, is then placed in baking oven at the temperature of 80～100 DEG C dry 20-50 minute；
(4.2) thermal debinding: being inserted by the ceramic body after solvent extraction defat and carry out thermal debinding in Muffle furnace, the heating curve of thermal debinding is: rise to 80 DEG C from room temperature in 4h, is incubated 1.5～3h；Then in 3h, rise to 150 DEG C from 80 DEG C, be incubated 1.5～3h；Then in 4h, rise to 250 DEG C from 150 DEG C, be incubated 1.5～3h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 2.5～3.5h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 2.5～3.5h；Then in 4h, rise to 450 DEG C from 350 DEG C, be incubated 2.5～3.5h；Finally in 4h, rise to 500 DEG C from 450 DEG C, be incubated 2.5～3.5h；Whole thermal debinding process control is in 44h。
Step (4.2) thermal debinding process can adopt buried powder mode to carry out, and the powder body that buried powder adopts is α-Al2O3Powder, zirconia powder, γ-Al2O3Any one in powder, activated carbon powder。Base substrate can be played a supporting role by buried powder mode on the one hand, it is to avoid during binding agent softening, base substrate deforms upon under Gravitative Loads, and the capillary action of another side base substrate buried powder can promote the eliminating of organic binder bond。
(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。Sintering can adopt atmosphere sintering, hot pressed sintering or normal pressure-sintered after carry out again through any one mode in HIP sintering mode。
The method of crystalline ceramics parts is prepared in injection moulding of the present invention, to ceramic powder pretreatment, then carries out that raw material is mixing, injection moulding, adopts two step defat methods to carry out defat, eventually pass sintering and prepare the crystalline ceramics parts of function admirable。The method of the present invention is suitable for the crystalline ceramics parts of preparation high-performance, complicated shape, and prepared crystalline ceramics parts fine microstructure, compactness are good, function admirable。
Embodiment 3。
The method of crystalline ceramics parts is prepared in a kind of injection moulding, comprises the steps:
(1) ceramic powder surface modification, makes surface modifier form one layer of nano level organic acid clad on ceramic powders surface, obtains surface modification ceramic powder。
Wherein, adopt in step (1) purity more than 99.9%, particle size is that the ceramic powder of submicron order carries out surface modification as raw material。
The surface modifier used in step (1) is stearic acid, and the content of surface modifier accounts for the 2.3% of ceramic powder weight。
Process of Surface Modification is to be mixed with ceramic powder by surface modifier, using ethanol as ball-milling medium, by ball milling 10h so that surface modifier and ceramic powder generation esterification obtain surface modification ceramic powder。
By ball milling method, surface modifier is introduced ceramic powder and carry out surface modification in advance, form one layer of nano level organic acid clad by the esterification occurred between surface modifier and ceramic powder at ceramic surface。Different from introducing surface modifier in mix stage in prior art, the process of the present invention is able to ensure that whole preparation technology effectively carries out, the high performance crystalline ceramics parts of final acquisition。
Step (2) is entered mixing after ceramic powder surface modification。
(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing。During step (2) ceramic injection feeding is mixing, surface modification ceramic powder and bonding dosing systems constitute injection molding mixture。By weight percentage, surface modification ceramic powder accounts for the percentage by weight of injection molding mixture is 60%。
Caking agent series is made up of polyethylene, polypropylene, paraffin, stearic acid and plasticizer, by weight percentage, polyethylene accounts for the 10% of caking agent series, polypropylene accounts for the 10% of caking agent series, paraffin accounts for the 65% of caking agent series, stearic acid accounts for the 10% of caking agent series, and plasticizer accounts for the 5% of caking agent series。
Ceramic injection feeding mixing process specifically includes:
First the double; two roller mill of preheating, after the temperature of roller reaches 170 DEG C, gap between two rollers adds polyethylene and polypropylene, after polyethylene, polypropylene are completely melted, add surface modification ceramic powders, paraffin and stearic acid, mixing 30min, adds plasticizer before mixing end in 5min。
(3) injection moulding obtains ceramic body。
(4) ceramic body is carried out defat。Defat is to adopt solvent extraction defat, in conjunction with two step defat methods of thermal debinding, ceramic body is carried out defat, specifically includes:
(4.1) solvent extraction defat: adopt kerosene as organic solvent, is extraction 6h at 50 DEG C in extraction temperature, is then placed in baking oven at the temperature of 90 DEG C dry 30 minutes；
(4.2) thermal debinding: being inserted by the ceramic body after solvent extraction defat and carry out thermal debinding in Muffle furnace, the heating curve of thermal debinding is: rise to 80 DEG C from room temperature in 4h, is incubated 2h；Then in 3h, rise to 150 DEG C from 80 DEG C, be incubated 2h；Then in 4h, rise to 250 DEG C from 150 DEG C, be incubated 2h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 3h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 3h；Then in 4h, rise to 450 DEG C from 350 DEG C, be incubated 3h；Finally in 4h, rise to 500 DEG C from 450 DEG C, be incubated 3h；Whole thermal debinding process control is in 44h。
Step (4.2) thermal debinding process can adopt buried powder mode to carry out, and the powder body that buried powder adopts is α-Al2O3Powder。Base substrate can be played a supporting role by buried powder mode on the one hand, it is to avoid during binding agent softening, base substrate deforms upon under Gravitative Loads, and the capillary action of another side base substrate buried powder can promote the eliminating of organic binder bond。
(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。Sintering can adopt atmosphere sintering, hot pressed sintering or normal pressure-sintered after carry out again through any one mode in HIP sintering mode。
The method of crystalline ceramics parts is prepared in injection moulding of the present invention, to ceramic powder pretreatment, then carries out that raw material is mixing, injection moulding, adopts two step defat methods to carry out defat, eventually pass sintering and prepare the crystalline ceramics parts of function admirable。The method of the present invention is suitable for the crystalline ceramics parts of preparation high-performance, complicated shape, and prepared crystalline ceramics parts fine microstructure, compactness are good, function admirable。
Embodiment 4。
The method of crystalline ceramics parts is prepared in a kind of injection moulding, comprises the steps:
(1) ceramic powder surface modification, makes surface modifier form one layer of nano level organic acid clad on ceramic powders surface, obtains surface modification ceramic powder。
Wherein, adopt in step (1) purity more than 99.9%, particle size is that the ceramic powder of submicron order carries out surface modification as raw material。
The surface modifier used in step (1) is any one in stearic acid, oleic acid or dodecyl stearic acid, and the content of surface modifier accounts for the 1.8% of ceramic powder weight。
Process of Surface Modification is to be mixed with ceramic powder by surface modifier, makes surface modifier and ceramic powder generation esterification obtain surface modification ceramic powder by ball milling。Ball-milling medium is ethanol, and Ball-milling Time is 6h。
Surface modifier is introduced ceramic powder by ball milling method and carries out surface modification in advance by the present embodiment, forms one layer of nano level organic acid clad by the esterification occurred between surface modifier and ceramic powder at ceramic surface。Different from introducing surface modifier in mix stage in prior art, the process of the present invention is able to ensure that whole preparation technology effectively carries out, the high performance crystalline ceramics parts of final acquisition。
Step (2) is entered mixing after ceramic powder surface modification。
(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing。During step (2) ceramic injection feeding is mixing, surface modification ceramic powder and bonding dosing systems constitute injection molding mixture。By weight percentage, surface modification ceramic powder accounts for the percentage by weight of injection molding mixture is 62%。
Caking agent series is made up of polyethylene, polypropylene, paraffin, stearic acid and plasticizer, by weight percentage, polyethylene accounts for the 15% of caking agent series, polypropylene accounts for the 15% of caking agent series, paraffin accounts for the 60% of caking agent series, stearic acid accounts for the 6% of caking agent series, and plasticizer accounts for the 4% of caking agent series。
Ceramic injection feeding mixing process specifically includes:
First the double; two roller mill of preheating, after the temperature of roller reaches 170 DEG C, gap between two rollers adds polyethylene and polypropylene, after polyethylene, polypropylene are completely melted, add surface modification ceramic powders, paraffin and stearic acid, mixing 30min, adds plasticizer before mixing end in 3min。
(3) injection moulding obtains ceramic body。
(4) ceramic body is carried out defat。Defat is to adopt solvent extraction defat, in conjunction with two step defat methods of thermal debinding, ceramic body is carried out defat, specifically includes:
(4.1) solvent extraction defat: adopt kerosene as organic solvent, is extraction 12h at 40～60 DEG C in extraction temperature, is then placed in baking oven at the temperature of 80～100 DEG C dry 45 minutes；
(4.2) thermal debinding: being inserted by the ceramic body after solvent extraction defat and carry out thermal debinding in Muffle furnace, the heating curve of thermal debinding is: rise to 80 DEG C from room temperature in 4h, is incubated 3h；Then in 3h, rise to 150 DEG C from 80 DEG C, be incubated 3h；Then in 4h, rise to 250 DEG C from 150 DEG C, be incubated 1.5h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 2.5h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 3.5h；Then in 4h, rise to 450 DEG C from 350 DEG C, be incubated 3.5h；Finally in 4h, rise to 500 DEG C from 450 DEG C, be incubated 2.5h；Whole thermal debinding process control is in 44h。
Step (4.2) thermal debinding process can adopt buried powder mode to carry out, and the powder body that buried powder adopts is zirconia powder。Base substrate can be played a supporting role by buried powder mode on the one hand, it is to avoid during binding agent softening, base substrate deforms upon under Gravitative Loads, and the capillary action of another side base substrate buried powder can promote the eliminating of organic binder bond。
(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。Sintering can adopt atmosphere sintering, hot pressed sintering or normal pressure-sintered after carry out again through any one mode in HIP sintering mode。
The method of crystalline ceramics parts is prepared in injection moulding of the present invention, to ceramic powder pretreatment, then carries out that raw material is mixing, injection moulding, adopts two step defat methods to carry out defat, eventually pass sintering and prepare the crystalline ceramics parts of function admirable。The method of the present invention is suitable for the crystalline ceramics parts of preparation high-performance, complicated shape, and prepared crystalline ceramics parts fine microstructure, compactness are good, function admirable。
Embodiment 5。
Prepare the method for crystalline ceramics parts by a kind of injection moulding of the present invention and carry out the preparation of alumina transparent ceramic, comprise the steps:
(1) ceramic powder surface modification
Adopt purity more than 99.9%, particle size is that the alumina ceramic powder of submicron order carries out surface modification as raw material。Surface modifier is stearic acid, and the content of surface modifier accounts for the 2% of ceramic powder weight。
Process of Surface Modification is to be mixed with ceramic powder by surface modifier, adopt ethanol as ball-milling medium, ball milling 5h, make surface modifier and ceramic powder generation esterification, make surface modifier form the stearate acid clad of one layer of 1-3 nanometer thickness on ceramic powders surface, obtain the alumina ceramic powder of surface modification。In the present embodiment, the ceramic particle transmission electron micrograph of the alumina ceramic powder of surface modification is as shown in Figure 1。Alumina ceramic powder in the present embodiment, the alumina ceramic powder of surface modification and stearic acid are carried out powder body Fourier's infrared analysis respectively, result is as shown in Figure 2, from figure 2 it can be seen that the collection of illustrative plates of the alumina ceramic powder of surface modification is different from pure alumina。
Surface modifier is introduced ceramic powder by ball milling method by the present embodiment and carries out surface modification in advance, form one layer of nano level organic acid clad by the esterification occurred between surface modifier and ceramic powder at ceramic surface。Different from introducing surface modifier in mix stage in prior art, the process of the present invention is able to ensure that whole preparation technology effectively carries out, the high performance crystalline ceramics parts of final acquisition。
Step (2) is entered mixing after ceramic powder surface modification。
(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing。During step (2) ceramic injection feeding is mixing, surface modification ceramic powder and bonding dosing systems constitute injection molding mixture。By weight percentage, surface modification ceramic powder accounts for the percentage by weight of injection molding mixture is 62%。
Caking agent series is made up of polyethylene, polypropylene, paraffin, stearic acid and plasticizer, by weight percentage, polyethylene accounts for the 15% of caking agent series, polypropylene accounts for the 15% of caking agent series, paraffin accounts for the 60% of caking agent series, stearic acid accounts for the 6% of caking agent series, and plasticizer accounts for the 4% of caking agent series。
Ceramic injection feeding mixing process specifically includes:
First the double; two roller mill of preheating, after the temperature of roller reaches 170 DEG C, gap between two rollers adds polyethylene and polypropylene, after polyethylene, polypropylene are completely melted, add surface modification ceramic powders, paraffin and stearic acid, mixing 30min, adds plasticizer before mixing end in 3min。
(3) injection moulding obtains ceramic body。
(4) ceramic body is carried out defat。Defat is to adopt solvent extraction defat, in conjunction with two step defat methods of thermal debinding, ceramic body is carried out defat, specifically includes:
(4.1) solvent extraction defat: adopt kerosene as organic solvent, is extraction 12h at 55 DEG C in extraction temperature, is then placed in baking oven at the temperature of 1000 DEG C dry 42 minutes；
(4.2) thermal debinding: being inserted by the ceramic body after solvent extraction defat and carry out thermal debinding in Muffle furnace, the heating curve of thermal debinding is: rise to 80 DEG C from room temperature in 4h, is incubated 1.5h；Then in 3h, rise to 150 DEG C from 80 DEG C, be incubated 2.5h；Then in 4h, rise to 250 DEG C from 150 DEG C, be incubated 2h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 3h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 3.5h；Then in 4h, rise to 450 DEG C from 350 DEG C, be incubated 3.5h；Finally in 4h, rise to 500 DEG C from 450 DEG C, be incubated 2h；Whole thermal debinding process control is in 44h。
Step (4.2) thermal debinding process adopts buried powder mode to carry out, and the powder body that buried powder adopts is activated carbon powder。Base substrate can be played a supporting role by buried powder mode on the one hand, it is to avoid during binding agent softening, base substrate deforms upon under Gravitative Loads, and the capillary action of another side base substrate buried powder can promote the eliminating of organic binder bond。
(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。Sintering can adopt the mode of atmosphere sintering to carry out。The scanning electron microscope surface topography map of the transparent alumina ceramics after sintering is as shown in Figure 3。It should be noted that the atmosphere sintering mode of alumina ceramic component is general knowledge known in this field, do not repeat them here。
The sintering processing of ceramic body is not limited to the atmosphere sintering of the present embodiment, it is also possible to carry out again through any one mode in HIP sintering mode after selecting hot pressed sintering or being normal pressure-sintered。
The picture of the complicated shape crystalline ceramics parts prepared by the method for the present invention as shown in Figure 4, containing the discharge tube such as four transparent alumina brackets and a transparent alumina in Fig. 4。The transparent alumina ceramics parts of other complicated shape can also be prepared by the method for the present invention, do not repeat one by one at this。
The method of crystalline ceramics parts is prepared in injection moulding of the present invention, to ceramic powder pretreatment, then carries out that raw material is mixing, injection moulding, adopts two step defat methods to carry out defat, eventually pass sintering and prepare the crystalline ceramics parts of function admirable。The method of the present invention is suitable for the crystalline ceramics parts of preparation high-performance, complicated shape, and prepared crystalline ceramics parts fine microstructure, compactness are good, function admirable。
Embodiment 6。
Prepare the method for crystalline ceramics parts by a kind of injection moulding of the present invention and carry out the preparation of yttrium oxide transparent ceramic, comprise the steps:
(1) ceramic powder surface modification
Adopt purity more than 99.9%, particle size is that the yttrium powder body of submicron order carries out surface modification as raw material。Surface modifier is stearic acid, and the content of surface modifier accounts for the 1.6% of ceramic powder weight。
Process of Surface Modification is to be mixed with ceramic powder by surface modifier, adopt ethanol as ball-milling medium, ball milling 3h, make surface modifier and ceramic powder generation esterification, make surface modifier form the stearate acid clad of one layer of 1-3 nanometer thickness on ceramic powders surface, obtain the yttrium powder body of surface modification。
Surface modifier is introduced ceramic powder by ball milling method by the present embodiment and carries out surface modification in advance, form one layer of nano level organic acid clad by the esterification occurred between surface modifier and ceramic powder at ceramic surface。Different from introducing surface modifier in mix stage in prior art, the process of the present invention is able to ensure that whole preparation technology effectively carries out, the high performance crystalline ceramics parts of final acquisition。
Step (2) is entered mixing after ceramic powder surface modification。
(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing。During step (2) ceramic injection feeding is mixing, surface modification ceramic powder and bonding dosing systems constitute injection molding mixture。By weight percentage, surface modification ceramic powder accounts for the percentage by weight of injection molding mixture is 61%。
Caking agent series is made up of polyethylene, polypropylene, paraffin, stearic acid and plasticizer, by weight percentage, polyethylene accounts for the 13% of caking agent series, polypropylene accounts for the 13% of caking agent series, paraffin accounts for the 64% of caking agent series, stearic acid accounts for the 5% of caking agent series, and plasticizer accounts for the 5% of caking agent series。
Ceramic injection feeding mixing process specifically includes:
First the double; two roller mill of preheating, after the temperature of roller reaches 170 DEG C, gap between two rollers adds polyethylene and polypropylene, after polyethylene, polypropylene are completely melted, add surface modification ceramic powders, paraffin and stearic acid, mixing 33min, adds plasticizer before mixing end in 4min。
(3) injection moulding obtains ceramic body。
(4) ceramic body is carried out defat。Defat is to adopt solvent extraction defat, in conjunction with two step defat methods of thermal debinding, ceramic body is carried out defat, specifically includes:
(4.1) solvent extraction defat: adopt kerosene as organic solvent, is extraction 12h at 55 DEG C in extraction temperature, is then placed in baking oven at the temperature of 1000 DEG C dry 42 minutes；
(4.2) thermal debinding: being inserted by the ceramic body after solvent extraction defat and carry out thermal debinding in Muffle furnace, the heating curve of thermal debinding is: rise to 80 DEG C from room temperature in 4h, is incubated 1.5h；Then in 3h, rise to 150 DEG C from 80 DEG C, be incubated 2.5h；Then in 4h, rise to 250 DEG C from 150 DEG C, be incubated 2h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 3h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 3.5h；Then in 4h, rise to 450 DEG C from 350 DEG C, be incubated 3.5h；Finally in 4h, rise to 500 DEG C from 450 DEG C, be incubated 2h；Whole thermal debinding process control is in 44h。
Step (4.2) thermal debinding process adopts buried powder mode to carry out, and the powder body that buried powder adopts is activated carbon powder。Base substrate can be played a supporting role by buried powder mode on the one hand, it is to avoid during binding agent softening, base substrate deforms upon under Gravitative Loads, and the capillary action of another side base substrate buried powder can promote the eliminating of organic binder bond。
(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。Sintering can adopt the mode of hot pressed sintering to carry out。It should be noted that the atmosphere sintering mode of yttrium parts is general knowledge known in this field, do not repeat them here。
The sintering processing of ceramic body is not limited to the hot pressed sintering of the present embodiment, it is also possible to carry out again through any one mode in HIP sintering mode after selecting atmosphere sintering or being normal pressure-sintered。
Complicated shape crystalline ceramics parts can be prepared, such as discharge tubes such as transparent Indium yttrium bracket, transparent Indium yttrium etc. by the method for the present invention。
The method of crystalline ceramics parts is prepared in injection moulding of the present invention, to ceramic powder pretreatment, then carries out that raw material is mixing, injection moulding, adopts two step defat methods to carry out defat, eventually pass sintering and prepare the crystalline ceramics parts of function admirable。The method of the present invention is suitable for the crystalline ceramics parts of preparation high-performance, complicated shape, and prepared crystalline ceramics parts fine microstructure, compactness are good, function admirable。
It should be noted that prepared by all transparent crystalline ceramics parts that are not conveniently suitable for of the present invention, it is not limited solely to alumina transparent ceramic parts and the preparation of yttrium oxide transparent ceramic parts, does not repeat one by one at this。
Finally should be noted that; above example is only in order to illustrate technical scheme but not limiting the scope of the invention; although the present invention being explained in detail with reference to preferred embodiment; it will be understood by those within the art that; technical scheme can be modified or equivalent replacement, without deviating from the spirit and scope of technical solution of the present invention。

Claims (10)

1. the method that crystalline ceramics parts are prepared in an injection moulding, it is characterised in that comprise the steps:
(1) ceramic powder surface modification, makes surface modifier form one layer of nano level organic acid clad on ceramic powders surface, obtains surface modification ceramic powder；
(2) surface modification ceramic powder and caking agent series are carried out ceramic injection feeding mixing；
(3) injection moulding obtains ceramic body；
(4) ceramic body is carried out defat；
(5) ceramic body after defat is sintered, it is thus achieved that finished product crystalline ceramics parts。
2. the method that crystalline ceramics parts are prepared in injection moulding according to claim 1, it is characterised in that adopt in step (1) purity more than 99.9%, particle size is that the ceramic powder of submicron order carries out surface modification as raw material。
3. the method that crystalline ceramics parts are prepared in injection moulding according to claim 2, it is characterized in that, the surface modifier used in described step (1) is any one in stearic acid, oleic acid or dodecyl stearic acid, and the content of surface modifier accounts for the 1.5～3% of ceramic powder weight。
4. the method that crystalline ceramics parts are prepared in injection moulding according to claim 3, it is characterized in that, surface modifier is specifically mixed by described step (1) with ceramic powder, makes surface modifier and ceramic powder generation esterification obtain surface modification ceramic powder by ball milling。
5. the method that crystalline ceramics parts are prepared in injection moulding according to claim 4, it is characterised in that in described step (1), ball-milling medium is ethanol, and Ball-milling Time is 3～12h。
6. the method that crystalline ceramics parts are prepared in injection moulding according to claim 5, it is characterised in that during described step (2) ceramic injection feeding is mixing, is constituted injection molding mixture by surface modification ceramic powder and bonding dosing systems；
By weight percentage, surface modification ceramic powder accounts for the percentage by weight of injection molding mixture is 58～65%；
Caking agent series is made up of polyethylene, polypropylene, paraffin, stearic acid and plasticizer, by weight percentage, polyethylene accounts for the 8～20% of caking agent series, polypropylene accounts for the 8～20% of caking agent series, paraffin accounts for the 54～65% of caking agent series, stearic acid accounts for the 5～10% of caking agent series, and plasticizer accounts for the 4～8% of caking agent series。
7. the method that crystalline ceramics parts are prepared in injection moulding according to claim 6, it is characterised in that described step (2) ceramic injection feeding mixing process specifically includes:
First the double; two roller mill of preheating, after the temperature of roller reaches 170 DEG C, gap between two rollers adds polyethylene and polypropylene, after polyethylene, polypropylene are completely melted, add surface modification ceramic powders, paraffin and stearic acid, mixing 30～45min, adds plasticizer before mixing end in 3～5min。
8. the method that crystalline ceramics parts are prepared in injection moulding according to claim 7, it is characterized in that, it is adopt solvent extraction defat, in conjunction with two step defat methods of thermal debinding, ceramic body is carried out defat that ceramic body is carried out defat by described (4), specifically includes:
(4.1) solvent extraction defat: adopt kerosene as organic solvent, is extraction 4～12h at 40～60 DEG C in extraction temperature, is then placed in baking oven at the temperature of 80～100 DEG C dry 20-50 minute；
(4.2) thermal debinding: being inserted by the ceramic body after solvent extraction defat and carry out thermal debinding in Muffle furnace, the heating curve of thermal debinding is: rise to 80 DEG C from room temperature in 4h, is incubated 1.5～3h；Then in 3h, rise to 150 DEG C from 80 DEG C, be incubated 1.5～3h；Then in 4h, rise to 250 DEG C from 150 DEG C, be incubated 1.5～3h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 2.5～3.5h；Then in 4h, rise to 350 DEG C from 250 DEG C, be incubated 2.5～3.5h；Then in 4h, rise to 450 DEG C from 350 DEG C, be incubated 2.5～3.5h；Finally in 4h, rise to 500 DEG C from 450 DEG C, be incubated 2.5～3.5h；Whole thermal debinding process control is in 44h。
9. the method that crystalline ceramics parts are prepared in injection moulding according to claim 8, it is characterised in that described step (4.2) thermal debinding process adopts buried powder mode to carry out, and the powder body that buried powder adopts is α-Al2O3Powder, zirconia powder, γ-Al2O3Any one in powder, activated carbon powder。
10. the method that crystalline ceramics parts are prepared in injection moulding according to claim 9, it is characterized in that, described step (5) adopt atmosphere sintering, hot pressed sintering or normal pressure-sintered after carry out again through any one mode in HIP sintering mode。
CN201610079680.XA 2016-02-04 2016-02-04 Method for producing transparent ceramic component by injection molding Pending CN105693255A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610079680.XA CN105693255A (en) 2016-02-04 2016-02-04 Method for producing transparent ceramic component by injection molding
PCT/CN2016/075447 WO2017133049A1 (en) 2016-02-04 2016-03-03 Method for preparing transparent ceramic part by injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610079680.XA CN105693255A (en) 2016-02-04 2016-02-04 Method for producing transparent ceramic component by injection molding

Publications (1)

Publication Number Publication Date
CN105693255A true CN105693255A (en) 2016-06-22

Family

ID=56222133

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610079680.XA Pending CN105693255A (en) 2016-02-04 2016-02-04 Method for producing transparent ceramic component by injection molding

Country Status (2)

Country Link
CN (1) CN105693255A (en)
WO (1) WO2017133049A1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109485393A (en) * 2018-11-28 2019-03-19 深圳市商德先进陶瓷股份有限公司 Aluminium oxide ceramics and preparation method thereof and ceramic chopper
CN110183214A (en) * 2019-05-27 2019-08-30 北京科技大学 The preparation method of porous hollow bowl-type alumina powder material and aluminium oxide ceramics
CN110204334A (en) * 2019-05-29 2019-09-06 常州大学 A kind of high-compactness Zirconium oxide powder injection moulding PP Pipe Compound and preparation method thereof
CN111454067A (en) * 2020-05-30 2020-07-28 浙江昶研新材料有限公司 Transparent ceramic orthodontic bracket and preparation method thereof
CN112869248A (en) * 2021-01-13 2021-06-01 深圳陶陶科技有限公司 Preparation method of ceramic atomizing core
CN113149626A (en) * 2021-05-13 2021-07-23 武汉理工大学 Feed for quartz ceramic injection molding and preparation method thereof
CN113213896A (en) * 2021-06-11 2021-08-06 广东康荣高科新材料股份有限公司 Feeding material for alumina ceramic injection molding and feeding material injection molding method
CN113387691A (en) * 2021-07-20 2021-09-14 东莞市华研新材料科技有限公司 Ceramic plastic-based feed with high catalytic degreasing rate and preparation method thereof
CN113560576A (en) * 2021-06-18 2021-10-29 深圳艾利门特科技有限公司 MIM (metal injection molding) forming process for ultrahigh-strength and high-toughness steel part
CN114249583A (en) * 2021-11-19 2022-03-29 上海簇睿低碳能源技术有限公司 Alumina slurry suitable for photocuring 3D printing and preparation method thereof
CN114458686A (en) * 2021-12-22 2022-05-10 萍乡市慧成精密机电有限公司 Ceramic injection molding sliding bearing and manufacturing method thereof
CN115010471A (en) * 2022-06-28 2022-09-06 西安理工大学 Mixed powder-embedding degreasing method based on photocuring 3D printing texture aluminum oxide
CN115108836A (en) * 2022-07-29 2022-09-27 东莞市夏阳新材料有限公司 Silicon carbide injection molding process
CN115894046A (en) * 2022-11-30 2023-04-04 福建华清电子材料科技有限公司 Method for preparing aluminum nitride ceramic by injection molding
CN116425540A (en) * 2023-03-14 2023-07-14 山东国瓷功能材料股份有限公司 Piezoelectric ceramic tube type ultrasonic motor and preparation method thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112390633A (en) * 2020-11-18 2021-02-23 中航装甲科技有限公司 ZrB2Nano powder reinforced silica-based ceramic core and preparation method thereof
CN112408952B (en) * 2020-12-03 2022-07-15 厦门钨业股份有限公司 High-thermal-conductivity thin-wall ceramic tube and manufacturing method thereof
CN113347815B (en) * 2021-05-31 2023-02-14 Oppo广东移动通信有限公司 Shell, preparation method thereof and electronic equipment
CN115894041B (en) * 2022-10-14 2023-10-13 中国科学院上海硅酸盐研究所 Preparation method of powder extrusion 3D printing forming reaction sintering silicon carbide ceramic
CN115894013B (en) * 2022-11-18 2023-08-01 潮州三环（集团）股份有限公司 Feeding material for ceramic ferrule forming and preparation method and application thereof
CN116332655A (en) * 2023-03-28 2023-06-27 湖南圣瓷科技有限公司 Ceramic arm and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003220671A (en) * 2002-01-29 2003-08-05 Fukuvi Chem Ind Co Ltd Decorative laminated sheet and method of manufacturing the same
CN101159210A (en) * 2007-11-03 2008-04-09 清新县石坎镇巨安胶木电器瓷件厂 Manufacturing method for ceramic metallic halogen lamp monomer electric arc pipe shell

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101618568B (en) * 2009-02-27 2011-05-11 清华大学 Preparation method of superfine ceramic powder injection molding mixture
CN103803974B (en) * 2013-09-29 2015-07-08 雅安远创陶瓷有限责任公司 Injection molding zirconium oxide and preparation method for same
CN104860684B (en) * 2015-05-26 2017-05-17 北京科技大学 Adhesive agent for injection molding of aluminum nitride ceramic and application method of adhesive agent
CN105732050A (en) * 2016-01-13 2016-07-06 广东工业大学 Preparation technology of net size transparent ceramic part in complex shape

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003220671A (en) * 2002-01-29 2003-08-05 Fukuvi Chem Ind Co Ltd Decorative laminated sheet and method of manufacturing the same
CN101159210A (en) * 2007-11-03 2008-04-09 清新县石坎镇巨安胶木电器瓷件厂 Manufacturing method for ceramic metallic halogen lamp monomer electric arc pipe shell

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘伟: ""透明氧化铝陶瓷成型与烧结工艺的基础研究"", 《中国博士全文论文全文数据库工程科技Ⅰ辑》 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109485393A (en) * 2018-11-28 2019-03-19 深圳市商德先进陶瓷股份有限公司 Aluminium oxide ceramics and preparation method thereof and ceramic chopper
CN110183214A (en) * 2019-05-27 2019-08-30 北京科技大学 The preparation method of porous hollow bowl-type alumina powder material and aluminium oxide ceramics
CN110204334A (en) * 2019-05-29 2019-09-06 常州大学 A kind of high-compactness Zirconium oxide powder injection moulding PP Pipe Compound and preparation method thereof
CN110204334B (en) * 2019-05-29 2021-12-21 常州大学 Special material for high-density zirconium oxide powder injection molding and preparation method thereof
CN111454067A (en) * 2020-05-30 2020-07-28 浙江昶研新材料有限公司 Transparent ceramic orthodontic bracket and preparation method thereof
CN112869248A (en) * 2021-01-13 2021-06-01 深圳陶陶科技有限公司 Preparation method of ceramic atomizing core
CN113149626A (en) * 2021-05-13 2021-07-23 武汉理工大学 Feed for quartz ceramic injection molding and preparation method thereof
CN113213896A (en) * 2021-06-11 2021-08-06 广东康荣高科新材料股份有限公司 Feeding material for alumina ceramic injection molding and feeding material injection molding method
CN113560576A (en) * 2021-06-18 2021-10-29 深圳艾利门特科技有限公司 MIM (metal injection molding) forming process for ultrahigh-strength and high-toughness steel part
CN113387691A (en) * 2021-07-20 2021-09-14 东莞市华研新材料科技有限公司 Ceramic plastic-based feed with high catalytic degreasing rate and preparation method thereof
CN114249583A (en) * 2021-11-19 2022-03-29 上海簇睿低碳能源技术有限公司 Alumina slurry suitable for photocuring 3D printing and preparation method thereof
CN114458686A (en) * 2021-12-22 2022-05-10 萍乡市慧成精密机电有限公司 Ceramic injection molding sliding bearing and manufacturing method thereof
CN115010471A (en) * 2022-06-28 2022-09-06 西安理工大学 Mixed powder-embedding degreasing method based on photocuring 3D printing texture aluminum oxide
CN115108836A (en) * 2022-07-29 2022-09-27 东莞市夏阳新材料有限公司 Silicon carbide injection molding process
CN115894046A (en) * 2022-11-30 2023-04-04 福建华清电子材料科技有限公司 Method for preparing aluminum nitride ceramic by injection molding
CN116425540A (en) * 2023-03-14 2023-07-14 山东国瓷功能材料股份有限公司 Piezoelectric ceramic tube type ultrasonic motor and preparation method thereof

Also Published As

Publication number Publication date
WO2017133049A1 (en) 2017-08-10

Similar Documents

Publication Publication Date Title
CN105693255A (en) Method for producing transparent ceramic component by injection molding
GB2539861B (en) Method for reinforcing metal material by means of graphene
CN105732050A (en) Preparation technology of net size transparent ceramic part in complex shape
CN106699191A (en) Stereolithography-based method for preparing silicon nitride ceramic by 3D printing
CN108706978B (en) Method for preparing silicon carbide ceramic matrix composite by combining spray granulation with 3DP and CVI
CN103922746B (en) Methods for preparing compact silicon nitride ceramic material and compact special-shaped silicon nitride ceramic material by virtue of aqueous tape casting
CN103406973B (en) A kind of alcohol aqueous gel-casting prepares the moulding process of porous or dense material
CN110698205B (en) Preparation method of graphene-toughened silicon carbide ceramic
CN107721408B (en) Method for preparing beta-tricalcium phosphate porous bioceramic through 3D printing
WO2021051294A1 (en) Method for preparing gradient functional ceramic
CN110372398A (en) A kind of quick degreasing sintered method of Stereolithography ceramic body
CN108640672A (en) A kind of preparation method of light-weight magnesite-alumina spinel refractories
de Camargo et al. Additive manufacturing of electrofused mullite slurry by digital light processing
Liu et al. A new way of fabricating Si3N4 ceramics by aqueous tape casting and gas pressure sintering
CN110986586B (en) Sintering device and preparation method of oxide ceramic target
CN111269013B (en) Yttria-based ultrahigh-temperature insulating ceramic special-shaped part and preparation method thereof
Feng et al. Preparation of low residual silicon content Si-SiC ceramics by binder jetting additive manufacturing and liquid silicon infiltration
CN108439990B (en) Titanium diboride-based ceramic composite material and preparation method thereof
CN109761622A (en) A kind of silicon nitride base gradient composite material and preparation method thereof based on outfield ancillary technique
CN112174645B (en) Method for preparing compact nano-crystalline ceramic
Salamon et al. Pressure-less spark plasma sintering of alumina
CN109160809A (en) A kind of submicrometer structure ultrathin alumina ceramic substrate and preparation method
CN113173788A (en) Rapid sintering preparation method of infrared transparent ceramic
Vasylkiv et al. Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study
Xin et al. Microstructures and mechanical properties of additively manufactured alumina ceramics with digital light processing

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: 20160622