CN107162588A - A kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block - Google Patents

A kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block Download PDF

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Publication number
CN107162588A
CN107162588A CN201710480238.2A CN201710480238A CN107162588A CN 107162588 A CN107162588 A CN 107162588A CN 201710480238 A CN201710480238 A CN 201710480238A CN 107162588 A CN107162588 A CN 107162588A
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China
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porcelain
artificial tooth
zirconium oxide
full
block
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CN201710480238.2A
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Inventor
刘光荣
朱爱萍
朱曰春
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Shaoxing Huajing Sci-Tech Co Ltd
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Shaoxing Huajing Sci-Tech Co Ltd
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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
    • C04B35/48—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same
    • A61C13/083—Porcelain or ceramic teeth
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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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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
    • 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
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
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    • 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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    • 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
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    • 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
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    • 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
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    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/94—Products characterised by their shape

Abstract

The present invention discloses a kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block, belongs to the full porcelain artificial tooth Material Field of Anodontia repair, comprises the following steps：First using zircon porcelain batch mixing as raw material, and full porcelain artificial tooth zirconium oxide porcelain block blank is made using injection moulding process, then full porcelain artificial tooth sequentially passes through the cured process of row, low temperature presintering knot process, machining operation, silkscreen process with zirconium oxide porcelain block blank, and last test package is into finished product.By the full porcelain artificial tooth zirconium oxide porcelain block obtained by the present invention, inner materials uniformity is good and density is big, fracture strength is high.High mechanical strength is preced with full porcelain artificial tooth as made by full porcelain artificial tooth of the invention with zirconium oxide porcelain block, density of material is high.Full porcelain artificial tooth zirconium oxide porcelain block of the invention, designs and is processed into full porcelain artificial tooth by CAD/CAM and be preced with blank, then is sintered, to reach the intensity and aesthetic of Clinical practice requirement.

Description

A kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block
Technical field
The present invention discloses a kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block, belongs to the full porcelain artificial tooth material of Anodontia repair Material field.
Background technology
In Anodontia repair, full porcelain artificial tooth is using more and more universal.In Anodontia repair, the intensity and aesthetics of artificial tooth show Obtain particularly significant.
In prior art, the preparation method of common full porcelain artificial tooth zirconium oxide porcelain block, conventional has " dry-pressing formed " Or " isostatic pressing ".
Ceramics shaping is important step in ceramic member preparation technology, and the ceramic batch inner homogeneous degree and consistency of shaping are The quality of ceramic member after direct correlation is finally sintered.Defect caused by forming process is often the main danger of ceramic product Dangerous defect, controls and eliminates these defects and produce objective requirement, promotes ceramic molding to deepen continuously and studies and innovate.Typically For, " dry-pressing formed " is the ceramic batch fabricated using granulation material, and its internal density uniformity is poor, " waits quiet It is molded " ceramic batch is processed into also with granulation material, its internal density uniformity can only be said relatively good.Because being to make Pellet is molded, the cured process of the row of needing not move through in subsequent handling, is directly machined after pre-sintering.Based on this, applicant thinks existing The preparation method for the full porcelain artificial tooth zirconium oxide porcelain block having could be improved, and thus this case produces.
The content of the invention
It is an object of the invention to provide the full porcelain that a kind of interiors of products property uniform in material is good and density is big, fracture strength is high justice The preparation method of tooth zirconium oxide porcelain block.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：
A kind of full porcelain artificial tooth preparation method of zirconium oxide porcelain block, comprises the following steps：First using zircon porcelain batch mixing as raw material, and use Full porcelain artificial tooth zirconium oxide porcelain block blank is made in injection moulding process, and then full porcelain artificial tooth is sequentially passed through with zirconium oxide porcelain block blank Arrange cured process, low temperature presintering knot process, machining operation, silkscreen process, last test package is into finished product.
In the present invention, because injection moulding is to use zircon porcelain batch mixing（Belong to viscoplasticity material）Carry out machine-shaping blank, it is made Into ceramic batch inner materials uniformity it is good, after arranging the process such as cured, low temperature presintering knot, finished product density is big, and fracture is strong Degree is high.In general, think in ceramic production industry, the zircon porcelain product strength of " injection moulding ", than the zirconium with " dry-pressing formed " Porcelain products, its fracture strength can lift more than 20%.
As the further setting of above-metioned scheme, the injection moulding process is carried out using injection machine, including zircon porcelain is mixed Material is in the state of HTHP, and injection enters in mold cavity and is molded, and high temperature therein is 180 DEG C ± 30 DEG C, and high pressure is 70Mpa±25Mpa。
The cured process of row arranges cured using hot blast, and hot blast temperature is gradually raised to 500 DEG C ± 100 DEG C, heating curve from normal temperature 0.5 DEG C/minute ± 0.1 DEG C/minute.
The temperature of the low temperature presintering knot process is gradually raised to 1000 DEG C ± 100 DEG C from normal temperature, and 1 DEG C/minute of heating curve ± 0.2 DEG C/minute.
The full porcelain artificial tooth zirconium oxide porcelain block blank can be cylinder, cuboid and customization solid.
By the full porcelain artificial tooth zirconium oxide porcelain block obtained by the present invention, inner materials uniformity is good and density is big, be broken Intensity is high.High mechanical strength is preced with full porcelain artificial tooth as made by full porcelain artificial tooth of the invention with zirconium oxide porcelain block, density of material is high. Full porcelain artificial tooth zirconium oxide porcelain block of the invention, designs and is processed into full porcelain artificial tooth by CAD/CAM and be preced with blank, then burnt Knot, to reach the intensity and aesthetic of Clinical practice requirement.
By the full porcelain artificial tooth zirconium oxide porcelain block obtained by the present invention, it can be not only preced with for manufacturing in full porcelain artificial tooth, Also zircon porcelain base station and zircon porcelain planting body be may be utilized in fabricating.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Brief description of the drawings
Fig. 1 is the working state schematic representation of injection moulding process in the present invention.
Embodiment
A kind of full porcelain artificial tooth preparation method of zirconium oxide porcelain block of the present invention, comprises the following steps：First using zircon porcelain batch mixing as raw material, And full porcelain artificial tooth zirconium oxide porcelain block blank is made using injection moulding process, then full porcelain artificial tooth with zirconium oxide porcelain block blank according to It is secondary by arranging cured process, low temperature presintering knot process, machining operation, silkscreen process, last test package is into finished product.
In the present embodiment, injection moulding process using injection machine carry out, including by zircon porcelain batch mixing HTHP state Under, injection enters in mold cavity and is molded, and high temperature therein is 180 DEG C ± 30 DEG C, and high pressure is 70Mpa ± 25Mpa.
With reference to shown in Fig. 1, the detailed process of injection moulding process is as follows：
Zircon porcelain batch mixing is added in hopper 1, pressure is produced through the extruding of screw rod 2, while the heater riser temperature of heating wire 3, in height Zircon porcelain batch mixing under warm high pressure conditions is sprayed into mold cavity 7 at material nozzle 6 is shaped to blank.Dynamical system 4 drives screw rod 2 to revolve Turn, produce pressure, oil cylinder 5 promotes material nozzle 6 to be combined closely with mold cavity 7, so that zircon porcelain batch mixing is through expecting that nozzle 6 sprays into mold cavity In 7, so, zircon porcelain batch mixing enters mould at high temperature under high pressure, and the blank inner materials of generation are uniform, and compact structure can be final Improve the quality of zircon porcelain blank.
In the present embodiment, arrange cured process and arrange cured using hot blast, hot blast temperature is gradually raised to 500 DEG C ± 100 DEG C, guarantor from normal temperature After warm 1-2 hours, progressively cool.Wherein, heating curve is 0.5 DEG C/minute ± 0.1 DEG C/minute.
In the present embodiment, the temperature of low temperature presintering knot process is gradually raised to 1000 DEG C ± 100 DEG C from normal temperature, and insulation 1-2 is small Shi Hou, progressively cools.Wherein, heating curve is 1 DEG C/minute ± 0.2 DEG C/minute.
In the present embodiment, full porcelain artificial tooth zirconium oxide porcelain block blank can be cylinder, cuboid and customization solid.
Zircon porcelain batch mixing can commercially be bought.Also can voluntarily it be prepared according to specific product demand.
In the present embodiment, zircon porcelain mixture recipes are as follows（Mass percent）：
Zirconium oxide：74% ± 1.5%, hafnium oxide 4% ± 0.5%, aluminum oxide 0.5% ± 0.2%, yittrium oxide 5% ± 0.5%, iron oxide≤ 0.5%, polyethylene 5% ± 1%, the acetate ethylene copolymer 3% ± 0.5% of ethene one, paraffin wax 7% ± 1.5%, dioctyl phthalate 2%±0.5%。
Above example only further illustrating as the present invention, technical scheme has been retouched in the claims State, on the premise of basic technology principle of the present invention is not changed, made change and improvement, in protection scope of the present invention Within.

Claims (5)

1. a kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block, it is characterised in that comprise the following steps：First with zircon porcelain batch mixing For raw material, and full porcelain artificial tooth zirconium oxide porcelain block blank is made using injection moulding process, then full porcelain artificial tooth zirconium oxide porcelain Block blank sequentially passes through the cured process of row, low temperature presintering knot process, machining operation, silkscreen process, last test package Into finished product.
2. a kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block as claimed in claim 1, it is characterised in that：The injection Molding procedure is carried out using injection machine, including by zircon porcelain batch mixing in the state of HTHP, injection enter in mold cavity and Shaping, high temperature therein is 180 DEG C ± 30 DEG C, and high pressure is 70Mpa ± 25Mpa.
3. a kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block as claimed in claim 1 or 2, it is characterised in that：It is described Arrange cured process and arrange cured using hot blast, hot blast temperature is gradually raised to 500 DEG C ± 100 DEG C, 0.5 DEG C/minute ± 0.1 of heating curve from normal temperature DEG C/minute.
4. a kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block as claimed in claim 1 or 2, it is characterised in that：It is described The temperature of low temperature presintering knot process is gradually raised to 1000 DEG C ± 100 DEG C, 1 DEG C/minute ± 0.2 DEG C/minute of heating curve from normal temperature.
5. a kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block as claimed in claim 1, it is characterised in that：The full porcelain Artificial tooth zirconium oxide porcelain block blank can be cylinder, cuboid and customization solid.
CN201710480238.2A 2017-06-22 2017-06-22 A kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block Pending CN107162588A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110002866A (en) * 2019-03-26 2019-07-12 合肥卓越义齿制作有限公司 A kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block
CN113999007A (en) * 2021-11-26 2022-02-01 上海陶宝陶瓷新材料开发有限公司 Production process of zirconia multilayer color simulation ceramic false tooth
CN114368966A (en) * 2021-03-26 2022-04-19 浙江丹斯登生物材料有限公司 Zirconia-based all-ceramic denture and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118663A (en) * 1983-11-30 1985-06-26 トヨタ自動車株式会社 Manufacture of dewaxing agent for ceramic injection formation
CN101376593A (en) * 2008-09-25 2009-03-04 钱江集团浙江亿江机电有限公司 Preparation of zircite tube
CN105563616A (en) * 2015-12-15 2016-05-11 东莞信柏结构陶瓷股份有限公司 Forming method for zirconia ceramic products
CN106431392A (en) * 2016-08-26 2017-02-22 东莞华晶粉末冶金有限公司 Mobile terminal shell and preparation method thereof, and mobile terminal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118663A (en) * 1983-11-30 1985-06-26 トヨタ自動車株式会社 Manufacture of dewaxing agent for ceramic injection formation
CN101376593A (en) * 2008-09-25 2009-03-04 钱江集团浙江亿江机电有限公司 Preparation of zircite tube
CN105563616A (en) * 2015-12-15 2016-05-11 东莞信柏结构陶瓷股份有限公司 Forming method for zirconia ceramic products
CN106431392A (en) * 2016-08-26 2017-02-22 东莞华晶粉末冶金有限公司 Mobile terminal shell and preparation method thereof, and mobile terminal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110002866A (en) * 2019-03-26 2019-07-12 合肥卓越义齿制作有限公司 A kind of preparation method of full porcelain artificial tooth zirconium oxide porcelain block
CN114368966A (en) * 2021-03-26 2022-04-19 浙江丹斯登生物材料有限公司 Zirconia-based all-ceramic denture and preparation method thereof
CN114368966B (en) * 2021-03-26 2022-12-02 浙江丹斯登生物材料有限公司 Zirconia-based all-ceramic denture and preparation method thereof
CN113999007A (en) * 2021-11-26 2022-02-01 上海陶宝陶瓷新材料开发有限公司 Production process of zirconia multilayer color simulation ceramic false tooth

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Application publication date: 20170915