CN104227827A - Forming method for ceramic products - Google Patents
Forming method for ceramic products Download PDFInfo
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- CN104227827A CN104227827A CN201410461809.4A CN201410461809A CN104227827A CN 104227827 A CN104227827 A CN 104227827A CN 201410461809 A CN201410461809 A CN 201410461809A CN 104227827 A CN104227827 A CN 104227827A
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- ceramic
- forming method
- ceramic product
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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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
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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
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention provides a forming method for ceramic products. The forming method comprises the following steps: batching: ceramic slurry is supplied; tape casting: the ceramic slurry is formed into a green plate by tape casting on a tape-casting machine; hot-pressing formation: the green plate is put into a hot-pressing mould, so that a formed green is obtained; in-mould blanking: the formed green is blanked in the hot-pressing mould, so that a green with the shape and dimension of a needed ceramic product is obtained; demoulding: the green with the shape and dimension of the ceramic product is taken out of the hot-pressing mould; sintering: the green which is taken out is degreased and sintered, so that the needed ceramic product is obtained. The forming method for the ceramic products, which is provided by the invention, can produce a product with a concave-convex or stepped shape in the thickness direction under the premise of ensuring that the ceramic product is ultrathin (the thickness range is generally between 0.05mm and 0.3mm), and moreover, the forming method greatly decreases the cost of production and the difficulty of the process, increases the efficiency of production, and realizes the industrialized mass production of ceramic products.
Description
Technical field
The present invention relates to ceramic product field, particularly relate to a kind of forming method of ceramic product.
Background technology
Structural ceramics due to there is higher hardness and on antenna without features such as impacts, in an increasingly wide range of applications in electronic devices and components.The day by day integrated and ultrathin of consumer electronics requires that ceramic part must have complicated shape and very thin thickness.
The forming method of existing ceramic product mainly comprises two kinds, i.e. flow casting molding and ceramic injection forming.Flow casting molding is that ceramic powders and organic matter are mixed and made into the slip with certain viscosity by suitable proportioning, slip to be scraped with certain thickness by scraper and is coated in special base band, the film becoming green tape is peeled from above after drying, solidification, then need to carry out the processing such as lamination process to green compact according to the size and dimension of finished product, then carry out degreasing and sintering obtains pottery; Ceramic injection forming obtains feeding by ceramic powders and organic matter being mixed with, and obtains green compact by injection molding method, and then degreasing sinteredly obtain pottery.The method of aft-loaded airfoil is the method by presintering or the ceramic body that sinters to be obtained final required form by the method for machining.
In above-mentioned two kinds of forming methods, flow casting molding method is applicable to the ceramic material preparing large area, Boping, but more complicated shape or step cannot be possessed at thickness direction, and injection molding method can make complicated shape but cannot reach the thickness of very thin (0.05 ?0.3mm), and adopt injection molding method, make that manufacturing cost is high, efficiency is low, the demand of mass can not be met.
Summary of the invention
Therefore, the invention provides a kind of forming method of ceramic product, it is taking into account the ceramic product that cannot make complicated shape under the very thin prerequisite of ceramic product thickness in order to the forming method solving existing ceramic product, cannot realize the technical problem of mass production simultaneously.
In order to solve the problem, the invention provides a kind of forming method of ceramic product, this forming method comprises the steps: batching: provide ceramic size; Flow casting molding: above-mentioned ceramic size is formed green sheet according to predetermined thickness curtain coating on casting machine; Hot-forming: provide one according to ceramic product profile arrangement and have the hot pressing die of former and anode membrane, be positioned on former by above-mentioned green sheet, close formpiston, in predetermined temperature and a predetermined pressure of pressurizeing in the scheduled time, obtains shaping green compact; Stamping-out in mould: carry out stamping-out to shaping green compact in above-mentioned hot pressing die, obtains the green compact of required ceramic product appearance and size; The demoulding: the above-mentioned green compact with ceramic product appearance and size are taken out in hot pressing die; Sintering: carry out degreasing sintered to the above-mentioned green compact be removed, obtain required ceramic product.
Preferably, in flow casting molding step, the thickness of this green sheet be 0.05 ?0.3mm.
Preferably, in hot-forming step, the scope of described predetermined pressure be 2 ?10Mpa, predetermined temperature range be 25 ?60 DEG C, the scheduled time be 1 ?10min.
Compared to correlation technique, the forming method of ceramic product provided by the invention can ensure under the prerequisite that ceramic product thickness is very thin, general thickness scope be 0.05 ?0.3mm, preparation has product that is concavo-convex or step shape in a thickness direction, and this forming method greatly reduces production cost and technology difficulty, improve production efficiency, realize the industrialized mass of ceramic product.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the schematic diagram in one embodiment of the invention after the hot pressing die demoulding.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides the forming method that the invention provides a kind of ceramic product, this forming method comprises the steps:
Step S1, batching: ceramic size is provided.This ceramic size makes according to the method for existing routine, and it forms by the structural ceramics powder of oven dry and solvent, dispersant, bonding agent and plasticizer etc. being configured according to certain ratio and charging sequence.
Step S2, flow casting molding: above-mentioned ceramic size is formed green sheet according to predetermined thickness curtain coating on casting machine.The thickness of this green sheet is generally 0.05-0.3mm.
Step S3, hot-forming: as shown in Figure 1, there is provided one according to ceramic product profile arrangement and there is the hot pressing die of former 10 and anode membrane 11, above-mentioned green sheet is positioned on former 10, close formpiston 11, in predetermined temperature and a predetermined pressure of pressurizeing in the scheduled time, obtain shaping green compact 12.The scope of described predetermined pressure is 2-10Mpa, and predetermined temperature range is 25-60 DEG C, and the scheduled time is 1-10min.Because the ductility of green compact has limited field, therefore, the deformation quantity that choose reasonable bending stretches when Design of Dies, deformation quantity is excessive, such as deformation quantity is greater than more than the twice of green compact thickness, break when then easily causing green compact shaping, residual stress also can cause strain cracking in degreasing sintered process.
Step S4, stamping-out in mould: in above-mentioned hot pressing die, stamping-out is carried out to shaping green compact 12, obtain the green compact of required ceramic product appearance and size.
Step S5, the demoulding: the above-mentioned green compact with ceramic product appearance and size are taken out in hot pressing die.
Step S6, sintering: carry out degreasing sintered to the above-mentioned green compact be removed, obtain required ceramic product.
Compared to correlation technique, the forming method of ceramic product provided by the invention can ensure under the prerequisite that ceramic product thickness is very thin, general thickness scope be 0.05 ?0.3mm, preparation has product that is concavo-convex or step shape in a thickness direction, and this forming method greatly reduces production cost and technology difficulty, improve production efficiency, realize the industrialized mass of ceramic product.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. a forming method for ceramic product, is characterized in that, this forming method comprises the steps:
Batching: ceramic size is provided;
Flow casting molding: above-mentioned ceramic size is formed green sheet according to predetermined thickness curtain coating on casting machine;
Hot-forming: provide one according to ceramic product profile arrangement and have the hot pressing die of former and anode membrane, be positioned on former by above-mentioned green sheet, close formpiston, in predetermined temperature and a predetermined pressure of pressurizeing in the scheduled time, obtains shaping green compact;
Stamping-out in mould: carry out stamping-out to shaping green compact in above-mentioned hot pressing die, obtains the green compact of required ceramic product appearance and size;
The demoulding: the above-mentioned green compact with ceramic product appearance and size are taken out in hot pressing die;
Sintering: carry out degreasing sintered to the above-mentioned green compact be removed, obtain required ceramic product.
2. the forming method of ceramic product according to claim 1, is characterized in that, in flow casting molding step, the thickness of this green sheet is 0.05-0.3mm.
3. the forming method of pottery product according to claim 1, it is characterized in that, in hot-forming step, the scope of described predetermined pressure is 2-10Mpa, and predetermined temperature range is 25-60 DEG C, and the scheduled time is 1-10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461809.4A CN104227827B (en) | 2014-09-11 | 2014-09-11 | The forming method of ceramic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461809.4A CN104227827B (en) | 2014-09-11 | 2014-09-11 | The forming method of ceramic product |
Publications (2)
| Publication Number | Publication Date |
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| CN104227827A true CN104227827A (en) | 2014-12-24 |
| CN104227827B CN104227827B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410461809.4A Expired - Fee Related CN104227827B (en) | 2014-09-11 | 2014-09-11 | The forming method of ceramic product |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986631A (en) * | 2017-04-01 | 2017-07-28 | 广东百工新材料科技有限公司 | A kind of ceramic mobile phone shell and preparation method thereof |
| CN107053790A (en) * | 2017-04-07 | 2017-08-18 | 北京小米移动软件有限公司 | Electronic equipment, ceramic component and preparation method thereof |
| CN109397478A (en) * | 2018-10-31 | 2019-03-01 | 晋晓瞳 | Single layer continuous type the tape casting mortar injection forming equipment and slip-casting shaping process |
| CN110143818A (en) * | 2018-02-12 | 2019-08-20 | 比亚迪股份有限公司 | A kind of preparation method and ceramic shell of ceramic shell |
| CN114105651A (en) * | 2021-08-31 | 2022-03-01 | 森霸传感科技股份有限公司 | Manufacturing method of pyroelectric ultrathin ceramic chip and application of pyroelectric ultrathin ceramic chip to sensor |
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| CN101973764A (en) * | 2010-10-15 | 2011-02-16 | 同济大学 | Textured calcium bismuth niobate ceramic material and preparation method thereof |
| CN103009706A (en) * | 2012-12-04 | 2013-04-03 | 西北工业大学 | Preparation method for metal/ceramic multilayer composite with resistance to high-energy shock |
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Patent Citations (6)
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| JP2000335971A (en) * | 1999-05-28 | 2000-12-05 | Nippon Tungsten Co Ltd | Aqueous solvent-containing ceramic slurry composition for electronic part and production of green sheet |
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| CN101863154A (en) * | 2010-06-17 | 2010-10-20 | 天津大学 | Multilayer gradient Ba1-xSrxTiO3 (BST) dielectric ceramic material and preparation method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986631A (en) * | 2017-04-01 | 2017-07-28 | 广东百工新材料科技有限公司 | A kind of ceramic mobile phone shell and preparation method thereof |
| CN107053790A (en) * | 2017-04-07 | 2017-08-18 | 北京小米移动软件有限公司 | Electronic equipment, ceramic component and preparation method thereof |
| CN107053790B (en) * | 2017-04-07 | 2019-09-27 | 北京小米移动软件有限公司 | Electronic equipment, ceramic component and preparation method thereof |
| CN110143818A (en) * | 2018-02-12 | 2019-08-20 | 比亚迪股份有限公司 | A kind of preparation method and ceramic shell of ceramic shell |
| CN109397478A (en) * | 2018-10-31 | 2019-03-01 | 晋晓瞳 | Single layer continuous type the tape casting mortar injection forming equipment and slip-casting shaping process |
| CN109397478B (en) * | 2018-10-31 | 2023-09-01 | 晋晓瞳 | Single-layer continuous casting grouting forming equipment and grouting forming process |
| CN114105651A (en) * | 2021-08-31 | 2022-03-01 | 森霸传感科技股份有限公司 | Manufacturing method of pyroelectric ultrathin ceramic chip and application of pyroelectric ultrathin ceramic chip to sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104227827B (en) | 2017-06-06 |
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