CN104085044A - Hollow ceramic die and forming method of hollow ceramic component - Google Patents
Hollow ceramic die and forming method of hollow ceramic component Download PDFInfo
- Publication number
- CN104085044A CN104085044A CN201410311786.9A CN201410311786A CN104085044A CN 104085044 A CN104085044 A CN 104085044A CN 201410311786 A CN201410311786 A CN 201410311786A CN 104085044 A CN104085044 A CN 104085044A
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- China
- Prior art keywords
- hollow ceramic
- die cavity
- air inlet
- hollow
- mould
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Classifications
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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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/82—Moulds built-up from several parts; Multiple moulds; Moulds with adjustable parts
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
Abstract
The invention relates to a hollow ceramic die which is provided with a cavity, one end of the cavity is provided with a pouring portion with a pouring port, the other end of the cavity is provided with an air inlet portion with an air inlet, and an air valve is arranged at the air inlet. The invention further relates to a forming method of hollow ceramic through the hollow ceramic die. The hollow ceramic die is simple in structure, residual stress of a blank body can be reduced effectively, and the manufactured hollow ceramic blank body is mellow and full; meanwhile, the precision hollow ceramic products such as spiral hollow ceramic blank bodies which can not be manufactured through conventional methods can be manufactured; the hollow ceramic component manufactured through the forming method of the hollow ceramic component has high precision, the forming method can be applied to the field of precision ceramics, the blank manufacturing period is shortened, the production efficiency is improved, and production raw materials are saved.
Description
Technical field
The present invention relates to ceramic die field, particularly the forming method of a kind of hollow ceramic mould and hollow ceramic member.
Background technology
In prior art for the hollow ceramic member of shape matching complexity, for example one section of bend pipe, one section of spiral bending tube, one section of Y type bend pipe or some other irregular passage ceramic component, its preparation method generally has two kinds of methods.Be to adopt the method that traditional gypsum mold slip casting is dried to form a passage, this method is applicable to the ceramic component not high to moulding precision requirement; Another kind method is to adopt some organic material first to make connection chipware by channel shape, with loosing core, connector is fixed in finished product mould, the ceramic size that reinjects is made idiosome, before firing, first by physics or chemical method, connection chipware is lost to empty method and make required ceramic component, this method is used for the making of high technology ceramics.At present, these two kinds of methods all have some limitations in application.For first method, the profile of idiosome can more accurately be controlled, but the uncontrollable precision of inner chamber, while being used for connecting other members, cannot realize and agreeing with, although can reach required precision by interior rounding polishing mode, interior rounding polishing mode are not also suitable for the member that need to use thread mutual connection; For second method, can be applicable to easily the ceramic component of simple shape, but the ceramic component for complicated shape, the method because of loosing core of can arranging limited, connect chipware in finished product mould, cannot stablize fixing, thereby the ceramic component of making can not be used compared with large deviation because of inner chamber and designing requirement generation, in addition, the method, when manufactured goods mold base body, easily wraps in the air in die cavity and in idiosome, causes the ceramic component of making to have defect.
Summary of the invention
Technical problem to be solved by this invention is: a kind of hollow ceramic mould that is applicable to make complex-shaped and hollow ceramic member that required precision is high is provided, and and then provides a kind of forming method of hollow ceramic member.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A hollow ceramic mould, has die cavity, and one end of described die cavity is provided with the casting portion with sprue gate, and the other end of described die cavity is provided with the intake section with air inlet, and described air inlet place is provided with air valve.
Beneficial effect of the present invention is:
(1) compare with traditional moulds combination, hollow ceramic mould structure of the present invention is simple, owing to not needing to connect chipware, has overcome that the existence two of chipware causes that ceramic idiosome easily subsides owing to connecting, the problem such as shrinkage cavity and wrinkle;
(2) structural design of hollow ceramic mould of the present invention can effectively reduce the residual stress of idiosome, prepared hollow ceramic idiosome is mellow and full full, meanwhile, this structure can make the accurate hollow ceramic product that the conventional methods such as helical form hollow ceramic idiosome cannot make.
The present invention also discloses a kind of method of utilizing above-mentioned hollow ceramic mould molding hollow ceramic member, comprises the following steps:
(1) ceramic size of melting is filled with to described hollow ceramic mould by sprue gate;
(2) when ceramic size is when the die cavity inner surface of described hollow ceramic mould forms cured layer, by air inlet to injecting gas in die cavity, the ceramic size still in die cavity with mobility is discharged by sprue gate, obtain the hollow ceramic idiosome with the hollow channel identical with cavity shape;
(3) cooling forming, the demoulding, make hollow ceramic member.
The beneficial effect of the method for moulding hollow ceramic member of the present invention is:
(1) compare with traditional gypsum mould grouting method, and the hollow ceramic member that the method for preparing hollow ceramic of the present invention makes has higher precision and smoothness, can be applied to high technology ceramics field;
(2) method of moulding hollow ceramic member of the present invention is owing to not needing to connect chipware, overcome that the existence two of chipware causes that ceramic idiosome easily subsides owing to connecting, the problem such as shrinkage cavity and wrinkle, shorten the embryo cycle processed simultaneously, enhance productivity, save raw materials for production.Meanwhile, can make the high technology ceramics part that the conventional methods such as helical form bend pipe cannot make.
Accompanying drawing explanation
Fig. 1 is the front view of the die cavity of the embodiment of the present invention hollow ceramic mould that is U-shaped;
Fig. 2 is the upward view of the die cavity of the embodiment of the present invention hollow ceramic mould that is U-shaped;
Fig. 3 is the schematic diagram of the hollow ceramic molding component method of the embodiment of the present invention.
Label declaration:
1, casting portion; 11, sprue gate; 2, intake section; 21, air inlet; 22, air valve; 3, loose core; 31, cylindrical hole; 4, die cavity; 5, ceramic size; 61, cured layer; 62, ceramic size; 7, hollow channel.
The specific embodiment
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
The design of most critical of the present invention is: in air inlet, air valve is set, the slurry that die cavity center is had to mobility by air valve injecting gas is released, thereby the hollow channel surface of the hollow ceramic idiosome of preparing has good smoothness and precision.
Refer to Fig. 1 and Fig. 2, the invention discloses a kind of hollow ceramic mould, have die cavity 4, one end of described die cavity 4 is provided with the casting portion 1 with sprue gate 11, the other end of described die cavity 4 is provided with the intake section 2 with air inlet 21, and described air inlet place is provided with air valve 22.
Refer to Fig. 3, operation principle of the present invention is: utilizing hot die-casting molding method to produce in high technology ceramics member, for the ceramic size of embryo processed for having added some organic matter (such as wax) to there is the slurry of heatmeltable.When embryo processed, ceramic size 5 is lowered the temperature in advance and is caused mobility to weaken formation cured layer 61 with the die cavity inner surface contact portion of hollow ceramic mould, and the ceramic size 62 of die cavity mid portion also has stronger mobility.Utilize this feature, by first injecting ceramic size 5, fill with mold cavity 4, when die cavity 4 inner surfaces formation have certain thickness ceramic slurry curing layer 61, to the interior injecting gas of die cavity 4, the ceramic size 62 die cavity 4 centers to mobility is discharged by sprue gate 11, thereby form the hollow channel 7 identical with die cavity 4 shapes, in discharging the process of slurry, utilize the flowing property of gas to make cured layer 61 surfaces there is good smoothness and precision, after cooling and shaping, can be made into the hollow ceramic member of the hollow channel 7 with good smoothness and precision.
From foregoing description, beneficial effect of the present invention is:
(1) compare with traditional moulds combination, hollow ceramic mould structure of the present invention is simple, owing to not needing to connect chipware, has overcome that the existence two of chipware causes that ceramic idiosome easily subsides owing to connecting, the problem such as shrinkage cavity and wrinkle;
(2) structural design of hollow ceramic mould of the present invention can effectively reduce the residual stress of idiosome, prepared hollow ceramic idiosome is mellow and full full, meanwhile, this structure can make the accurate hollow ceramic product that the conventional methods such as helical form hollow ceramic idiosome cannot make.
Hollow ceramic mould provided by the invention goes for the hollow ceramic member of any shape of moulding, such as have Y shape die cavity hollow ceramic member, there is the hollow ceramic member of S shape die cavity and there is hollow ceramic member of spirality die cavity etc.
Refer to Fig. 3, the present invention also discloses a kind of method of utilizing above-mentioned hollow ceramic mould molding hollow ceramic member, comprises the following steps:
(1) ceramic size of melting 5 is filled with to described hollow ceramic mould by sprue gate 11;
(2) when ceramic size 5 is when die cavity 4 inner surfaces of described hollow ceramic mould form cured layer 61, by air inlet 21 to the interior injecting gas of die cavity 4, the ceramic size 62 still in die cavity 4 with mobility is discharged by sprue gate 11, obtain the hollow ceramic idiosome with the hollow channel 7 identical with die cavity 4 shapes;
(3) cooling forming, the demoulding, make hollow ceramic member.
Further, the hollow ceramic idiosome obtaining in described step (2) is carried out to pressurize, exhaust.
The beneficial effect of the method for moulding hollow ceramic member of the present invention is:
(1) compare with traditional gypsum mould grouting method, and the hollow ceramic member that the method for moulding hollow ceramic member of the present invention makes has higher precision and smoothness, can be applied to high technology ceramics field;
(2) method of moulding hollow ceramic member of the present invention is owing to not needing to connect chipware, overcome that the existence two of chipware causes that ceramic idiosome easily subsides owing to connecting, the problem such as shrinkage cavity and wrinkle, shorten the embryo cycle processed simultaneously, enhance productivity, save raw materials for production.Meanwhile, can make the high technology ceramics part that the conventional methods such as helical form bend pipe cannot make.
Embodiment mono-
Structure when 1, the die cavity of hollow ceramic mould is U-shaped.
Refer to Fig. 1, the die cavity of the hollow ceramic of the present embodiment is U-shaped die cavity, this mould is a matched moulds mould, after matched moulds, form a U-shaped die cavity, one end of U-shaped die cavity is provided with casting portion 1, casting portion 1 has sprue gate 11, the other end of U-shaped die cavity is provided with intake section 2, intake section 2 has an air inlet 21, on air inlet 21, be provided with one and loose core 3, described loosing core 3 has external screw teeth, described loosing core 3 has a cylindrical hole 31 along the axial central authorities of loosing core, one air valve 22 is installed in cylindrical hole, the outlet side of air valve 22 is inner towards U-shaped die cavity, the inlet end of air valve 22 is outside towards mould, the inlet end of air valve 22 is connected with air inlet pipe, air inlet pipe is connected with outside inlet duct.
2, utilize the method for above-mentioned hollow ceramic mould molding hollow ceramic member.
Adopt injection moulding slip casting machine that ceramic size 5 is injected to (direction of a arrow) described hollow ceramic mould by sprue gate 11, in slip casting process, ceramic size 5 arrives the other end along U-shaped die cavity, when slurry is filled with described hollow ceramic mould, start air valve, the gas that air valve 22 blows out (direction of b arrow) blows back the ceramic size at center 62 in material cylinder along passage, forms hollow channel 7, makes hollow ceramic idiosome.By described hollow ceramic idiosome carry out pressurize, exhaust makes hollow ceramic member.According to the burning process of injection moulding pottery, ceramic idiosome is formed by a firing, concrete firing temperature curve is different and different according to ceramic material.
In above-described embodiment, the form compare of U-shaped die cavity is simple, and external screw teeth looses core 3 for whether needing to arrange according to porcelain piece, and for having, the above-mentioned hollow ceramic member of internal screw thread is also not applicable.For form compare complexity such as screw type bend pipe, erose Guan Tong etc., all can make according to such scheme.
For how logical structure straight tube or a bend pipe that enters to have more, as " Y " type pipe, can be by the mode of two air inlets and two air valves be set, the method for analogy sample one, also can easily make required ceramic idiosome.
Sample embodiment of the present invention is only the better simply scheme adopting for realizing manufactured goods, can be by increasing existing device or equipment, runner is for example set in mould housing, by the temperature of fluid, controls insulation and the cooling opportunity of mould, thereby can make more accurate ceramic product.
In sum, hollow ceramic mould structure provided by the invention is simple, can effectively reduce the residual stress of idiosome, and prepared hollow ceramic idiosome is mellow and full full, meanwhile, this structure can make the accurate hollow ceramic product that the conventional methods such as helical form hollow ceramic idiosome cannot make; The hollow ceramic member that the method for moulding hollow ceramic member of the present invention makes has higher precision, can be applied to high technology ceramics field, shortens the embryo cycle processed, enhances productivity, and saves raw materials for production.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. a hollow ceramic mould, has die cavity, it is characterized in that, one end of described die cavity is provided with the casting portion with sprue gate, and the other end of described die cavity is provided with the intake section with air inlet, and described air inlet place is provided with air valve.
2. hollow ceramic mould according to claim 1, is characterized in that, described air inlet is more than two.
3. hollow ceramic mould according to claim 1, is characterized in that, described air inlet place is provided with looses core, described loosing core has external screw teeth, in described loosing core, be provided with cylindrical hole, described air valve is located in cylindrical hole, and the outlet side of described air valve is towards described die cavity.
4. according to the hollow ceramic mould described in claim 1 or 3, it is characterized in that, described die cavity is Y shape, and two, top of described Y shape die cavity port is air inlet, and described Y shape die cavity lower port is sprue gate.
5. according to the hollow ceramic mould described in claim 1 or 3, it is characterized in that, described die cavity is U-shaped.
6. according to the hollow ceramic mould described in claim 1 or 3, it is characterized in that, described die cavity is S shape, and two ports of described S shape die cavity are respectively air inlet and sprue gate.
7. according to the hollow ceramic mould described in claim 1 or 3, it is characterized in that, described die cavity is spirality, and two ports of described spirality die cavity are respectively air inlet and sprue gate.
8. a method of utilizing the hollow ceramic mould molding hollow ceramic member described in claim 1-7 any one, is characterized in that, comprises the following steps:
(1) ceramic size of melting is filled with to described hollow ceramic mould by sprue gate;
(2) when ceramic size is when the die cavity inner surface of described hollow ceramic mould forms cured layer, by air inlet to injecting gas in die cavity, the ceramic size still in die cavity with mobility is discharged by sprue gate, obtain the hollow ceramic idiosome with the hollow channel identical with cavity shape;
(3) cooling forming, the demoulding, make hollow ceramic member.
9. the method for moulding hollow ceramic member according to claim 8, is characterized in that, the hollow ceramic idiosome obtaining in described step (2) is carried out to pressurize, exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311786.9A CN104085044B (en) | 2014-07-02 | 2014-07-02 | A kind of method of utilization hollow ceramic mould molding hollow ceramic component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311786.9A CN104085044B (en) | 2014-07-02 | 2014-07-02 | A kind of method of utilization hollow ceramic mould molding hollow ceramic component |
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| Publication Number | Publication Date |
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| CN104085044A true CN104085044A (en) | 2014-10-08 |
| CN104085044B CN104085044B (en) | 2017-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291249A (en) * | 2015-10-20 | 2016-02-03 | 黄凌晟 | Manufacturing method for ceramic faucet |
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| EP0034217B1 (en) * | 1980-02-13 | 1983-05-18 | KERAMAG Keramische Werke Aktiengesellschaft | Apparatus for manufacturing ceramic sanitary products |
| CN87205911U (en) * | 1987-03-31 | 1988-03-02 | 新艺研究所 | Greenware-rotating and nobbing composition forming device |
| WO1991007262A1 (en) * | 1989-11-22 | 1991-05-30 | Flowcon Oy | Method for transferring and metering concrete mix |
| CN1118729A (en) * | 1994-06-08 | 1996-03-20 | 东陶机器株式会社 | Apparatus and method for slip casting |
| CN101288969A (en) * | 2008-05-30 | 2008-10-22 | 郭俊平 | Ceramic pressure casting and forming method and used mould |
| CN102424567A (en) * | 2011-08-31 | 2012-04-25 | 廊坊力泰道路设施制造有限公司 | Manufacturing method of ceramic tube for high-pressure gas discharging lamp |
| CN102490258A (en) * | 2011-11-18 | 2012-06-13 | 徐州协鑫太阳能材料有限公司 | Mould and method for casting quartz crucibles |
| CN203919351U (en) * | 2014-07-02 | 2014-11-05 | 黄舒遥 | A kind of hollow ceramic mould |
-
2014
- 2014-07-02 CN CN201410311786.9A patent/CN104085044B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0034217B1 (en) * | 1980-02-13 | 1983-05-18 | KERAMAG Keramische Werke Aktiengesellschaft | Apparatus for manufacturing ceramic sanitary products |
| CN87205911U (en) * | 1987-03-31 | 1988-03-02 | 新艺研究所 | Greenware-rotating and nobbing composition forming device |
| WO1991007262A1 (en) * | 1989-11-22 | 1991-05-30 | Flowcon Oy | Method for transferring and metering concrete mix |
| CN1118729A (en) * | 1994-06-08 | 1996-03-20 | 东陶机器株式会社 | Apparatus and method for slip casting |
| CN101288969A (en) * | 2008-05-30 | 2008-10-22 | 郭俊平 | Ceramic pressure casting and forming method and used mould |
| CN102424567A (en) * | 2011-08-31 | 2012-04-25 | 廊坊力泰道路设施制造有限公司 | Manufacturing method of ceramic tube for high-pressure gas discharging lamp |
| CN102490258A (en) * | 2011-11-18 | 2012-06-13 | 徐州协鑫太阳能材料有限公司 | Mould and method for casting quartz crucibles |
| CN203919351U (en) * | 2014-07-02 | 2014-11-05 | 黄舒遥 | A kind of hollow ceramic mould |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291249A (en) * | 2015-10-20 | 2016-02-03 | 黄凌晟 | Manufacturing method for ceramic faucet |
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| CN104085044B (en) | 2017-03-15 |
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Effective date of registration: 20190505 Address after: 350806 science and technology incubator of Bai Jin Industrial Park, Bai Zhong town, Minqing, Fuzhou, Fujian Patentee after: Minqing Yazhong Porcelain Industry Co., Ltd. Address before: 350000 Jinshan Jinxiang Road 530 and Xingyuan 4-302, Cangshan District, Fuzhou City, Fujian Province Patentee before: Huang Shuyao |
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