CN203919351U - A kind of hollow ceramic mould - Google Patents
A kind of hollow ceramic mould Download PDFInfo
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- CN203919351U CN203919351U CN201420362705.3U CN201420362705U CN203919351U CN 203919351 U CN203919351 U CN 203919351U CN 201420362705 U CN201420362705 U CN 201420362705U CN 203919351 U CN203919351 U CN 203919351U
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Abstract
The utility model relates to a kind of 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.The hollow ceramic mould structure that the utility model provides is simple, can effectively reduce the residual stress of idiosome, prepared hollow ceramic idiosome is mellow and full full, and meanwhile, this structure can make the accurate hollow ceramic member that the conventional methods such as helical form hollow ceramic member cannot make.
Description
Technical field
The utility model relates to ceramic die field, particularly a kind of hollow ceramic mould.
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 for the ceramic component of 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 use compared with large deviation because of inner chamber and designing requirement generation, in addition, the method, in the time of 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.
Utility model content
Technical problem to be solved in the utility model 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.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of 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.
Further, described air inlet is more than two.
Further, described air inlet place is provided with looses core, described in loose core and there is external screw teeth, described in be provided with cylindrical hole in loosing core, described air valve is located in cylindrical hole, the outlet side of described air valve is towards described die cavity.
Further, 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.
Further, described die cavity is U-shaped.
Further, described die cavity is S shape, and two ports of described S shape die cavity are respectively air inlet and sprue gate.
Further, described die cavity is spirality, and two ports of described spirality die cavity are respectively air inlet and sprue gate.
The beneficial effects of the utility model are:
(1) compared with traditional moulds combination, hollow ceramic mould structure of the present utility model 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 utility model 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.
Brief description of the drawings
Fig. 1 is the front view of the die cavity of the utility model embodiment hollow ceramic mould that is U-shaped;
Fig. 2 is the upward view of the die cavity of the utility model embodiment hollow ceramic mould that is U-shaped;
Fig. 3 is the schematic diagram of the die cavity of the utility model embodiment hollow ceramic mould that is U-shaped.
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.
Detailed description of the invention
By describing technology contents of the present utility model, 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 the utility model most critical 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 utility model 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.In the time of 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, fill mold cavity 4 by first injecting ceramic size 5, in the time that 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 the process of discharge 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, the beneficial effects of the utility model are:
(1) compared with traditional moulds combination, hollow ceramic mould structure of the present utility model 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 utility model 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 hollow ceramic mould that the utility model provides 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.
Embodiment mono-
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 towards U-shaped die cavity inside, the inlet end of air valve 22 is towards mould outside, the inlet end of air valve 22 is connected with air inlet pipe, air inlet pipe is connected with outside inlet duct.
In above-described embodiment, the form compare of U-shaped die cavity is simple, and whether external screw teeth looses core for needing to arrange according to porcelain piece, and for not having, the above-mentioned hollow ceramic member of internal screw thread is also 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 is set, the method for analogy sample one, also can easily make required ceramic idiosome.
The utility model sample embodiment 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, control insulation and the cooling opportunity of mould by the temperature of fluid, thereby can make more accurate ceramic product.
In sum, the hollow ceramic mould structure that the utility model provides 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 foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description 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 utility model.
Claims (7)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420362705.3U CN203919351U (en) | 2014-07-02 | 2014-07-02 | A kind of hollow ceramic mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420362705.3U CN203919351U (en) | 2014-07-02 | 2014-07-02 | A kind of hollow ceramic mould |
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| CN203919351U true CN203919351U (en) | 2014-11-05 |
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| CN201420362705.3U Active CN203919351U (en) | 2014-07-02 | 2014-07-02 | A kind of hollow ceramic mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085044A (en) * | 2014-07-02 | 2014-10-08 | 黄舒遥 | Hollow ceramic die and forming method of hollow ceramic component |
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2014
- 2014-07-02 CN CN201420362705.3U patent/CN203919351U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085044A (en) * | 2014-07-02 | 2014-10-08 | 黄舒遥 | Hollow ceramic die and forming method of hollow ceramic component |
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