CN215202528U - Casting machine for ceramic forming - Google Patents
Casting machine for ceramic forming Download PDFInfo
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- CN215202528U CN215202528U CN202120004979.5U CN202120004979U CN215202528U CN 215202528 U CN215202528 U CN 215202528U CN 202120004979 U CN202120004979 U CN 202120004979U CN 215202528 U CN215202528 U CN 215202528U
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Abstract
The utility model discloses a casting machine for ceramic molding, which comprises a slurry box, a scraper, a hot air dryer, a base station and a film belt; the film belt is arranged on the lower surface of the film belt; a drying driving roller and a drying driven roller are arranged on the middle drying section of the base station; the drying driving roller and the drying driven roller can enable the film belt to be in a three-dimensional curved structure in the hot air dryer; the shape of the membrane belt in the dryer is changed, two-dimensional hot air drying is changed into three-dimensional hot air drying, the membrane belt and the green blank belt are dried more uniformly, the surface defect of the green blank belt generated due to uneven drying in the thickness direction is reduced, the length of the dryer and the length of the casting machine can be reduced remarkably, and the construction cost of the casting machine workshop can be reduced.
Description
Technical Field
The utility model relates to an electronic equipment field especially relates to a casting machine for ceramic forming.
Background
The copper-clad ceramic substrate is one of the most excellent packaging materials of a high-voltage high-power module in the field of semiconductors. The ceramic plate is the main material with the copper-clad ceramic substrate as the core. The ceramic plate is made by sintering ceramic green bodies formed by ceramic slurry at high temperature. The green body forming is one of the most important links in the ceramic wafer production process, and the current common green body forming methods include dry pressing, film rolling, extrusion forming and pressing, tape casting and the like, wherein the tape casting is widely applied to the production and manufacturing of electronic ceramics due to the characteristics of suitability for large-scale mass production, simple process, low cost and stable product quality.
The tape casting is to use a tape casting machine to form ceramic slurry into a ceramic green tape, and the green tape is further cut and processed to obtain a ceramic green body. In a casting machine, under constant pressure, the slurry is uniformly coated on a conveyor belt (steel belt or film) of the casting machine through a slurry scraper, dried and cured through a heating system, separated from the conveyor belt at the tail end of the casting machine, and wound to obtain a green belt. In the whole process, the drying is one of the key points of tape casting, and the drying system of current tape casting machine generally adopts hot air heating system, and continuous hot air heating device's use causes the whole length of tape casting machine longer to it is big to cause factory building construction cost, has restricted further using widely of tape casting machine. In the prior art, a novel ultraviolet light-initiated reaction tape casting (patent application No. CN105585319A) places a wet blank after tape casting into an ultraviolet light radiation area for polymerization reaction, so that a flexible blank sheet is obtained and plays a role of drying, and the length of a tape casting machine can be obviously shortened because long-time evaporation drying is not needed, but the method is limited by the penetration depth of ultraviolet light and other technical problems, and is difficult to prepare a high-quality blank sheet (100 um) with thicker thickness and industrial mass production. However, there is no direct and effective method for the problem of overlong casting machine caused by the sectional hot air heating device.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model provides a casting machine for ceramic forming to solve above at least one technical problem.
In order to achieve the aim, the utility model provides a casting machine for ceramic forming, including slurry box, scraper, hot air dryer, base station, membrane area. The film belt is arranged on the lower surface of the film belt; a drying driving roller and a drying driven roller are arranged on the middle drying section of the base station; the drying driving roller and the drying driven roller can enable the film belt to be in a three-dimensional curved structure in the hot air dryer.
Furthermore, the number of the drying driving roller and the drying driven roller is not less than 2, the drying driving roller and the drying driven roller are cylindrical or conical, and the surfaces of the drying driving roller and the drying driven roller are smooth. The drying driving roller is arranged at the wave crest of the three-dimensional curved structure, and the drying driven roller is arranged at the wave trough of the three-dimensional curved structure. The drying driven rollers are arranged in pairs, symmetrically press the edges of the film belt, and the length of the drying driven rollers is 0.05-0.2 of the width of the film belt.
The method has the advantages that the shape of the membrane belt in the hot air dryer is changed, the planar membrane belt is changed into wavy shape with fluctuation, two-dimensional hot air drying is changed into three-dimensional hot air drying, the drying is more uniform, and the retention time of the wavy membrane belt or the three-dimensional curved membrane belt in the hot air dryer is longer relative to that of the planar membrane belt under the same belt speed, so that the length of the hot air dryer can be shortened under the same drying requirement, and the length of the casting machine is shortened.
Further, the shape of the scraper is one of a plane plate shape, a comma shape and a cuboid shape with an inclined angle at the edge, and the material of the scraper is stainless steel or hard carbon steel.
Further, the base platform is a bearing steel structure of casting machine equipment.
Furthermore, the hot air dryer is positioned above the base platform and the film belt, and the position of the base platform in the hot air dryer forms a drying section of the casting machine.
Further, the material of the film belt is one of polypropylene or polyester material.
Further, the load bearing substrate may be one of a nickel-chromium alloy stainless steel, a glass plate, and a polished granite plate.
The utility model has the advantages that: the shape of the membrane belt in the dryer is changed, two-dimensional hot air drying is changed into three-dimensional hot air drying, the membrane belt and the green blank belt are dried more uniformly, the surface defect of the green blank belt generated due to uneven drying in the thickness direction is reduced, the length of the dryer and the length of the casting machine can be reduced remarkably, and the construction cost of the casting machine workshop can be reduced.
Drawings
Fig. 1 is a schematic structural view of the casting machine of the present invention;
fig. 2 is a schematic structural diagram of the position of the drying roller of the casting machine of the present invention;
fig. 3 is the structure schematic diagram of the casting film belt and the green body belt in the casting machine of the present invention.
Wherein: 1 is a slurry box, 2 is a scraper, 3 is a hot air dryer, 4 is a base station, 5 is a film belt, 6 is a bearing matrix, 7a is a drying driving roller, 7b is a drying driven roller, and 8 is a green belt.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1 to 3, a casting machine for ceramic molding includes a slurry tank 1, a scraper 2, a hot air dryer 3, a base 4, and a film tape 5.
The film belt type film belt device comprises bearing matrixes 6 arranged on the upper surfaces of two sides of a base station, wherein the bearing matrixes are positioned on the lower surface of a film belt 5;
the drying device also comprises 3 drying driving rollers 7a and 3 pairs of drying driven rollers 7b which are arranged on the base platform and positioned in the hot air drying section, and the drying driving rollers are cylindrical or conical and have smooth surfaces; the method has the advantages that the shape of the membrane belt in the hot air dryer is changed, the planar membrane belt is changed into wavy shape with fluctuation, two-dimensional hot air drying is changed into three-dimensional hot air drying, the drying is more uniform, and the retention time of the wavy membrane belt or the three-dimensional curved membrane belt in the hot air dryer is longer relative to that of the planar membrane belt under the same belt speed, so that the length of the hot air dryer can be shortened under the same drying requirement, and the length of the casting machine is shortened.
The scraper 2 is one of a plane plate shape, a comma shape and a cuboid shape with an inclined angle at the edge, and the scraper is made of stainless steel or hard carbon steel.
The base station 4 is a bearing steel structure of casting machine equipment.
The hot air dryer 3 is positioned above the base platform and the film belt, and the position of the base platform in the hot air dryer forms a drying section of the casting machine.
The material of the film belt 5 is one of polypropylene or polyester material.
The load bearing substrate 6 may be one of a nickel-chromium alloy stainless steel, a glass plate, and a polished granite plate.
The drying driving roller and the driven roller are arranged on the base station and positioned in the hot air drying section, the driving roller is arranged at the wave crest of the three-dimensional curved structure, and the driven roller is arranged at the wave trough of the three-dimensional curved structure; the drying driving roller 7a and the driven roller 7b can make the film belt have a three-dimensional curved structure in the hot air dryer.
Preferably, the dry driven rollers are arranged in pairs, symmetrically pressed against the edges of the film strip, and have a length of 0.05-0.2 of the width of the film strip.
Example two:
this embodiment is for simply introducing the ceramic casting machine curtain coating pottery green tape process that uses prior art in this field to relate to, ceramic thick liquids are through ball-milling, homogenization, after the vacuum defoamation, pump into slurry tank 1 of casting machine, form the green tape of certain thickness on the casting rete through scraper 2, along with the rete is conveyed the drying zone, the drying zone is not equipped with dry driving roller, the rete, the green tape, the basement is two-dimentional level form, the level passes through hot air dryer, convey the curtain coating machine tail end after the abundant drying, green tape and rete separation, roll up green tape and rete through tail end reel.
Example three:
referring to fig. 1 to 3, in a process of casting a ceramic green tape by using the ceramic casting machine of the present invention, ceramic slurry is subjected to ball milling, homogenization and vacuum defoamation, and then is pumped into a slurry box 1 of the casting machine, a green tape with a certain thickness is formed on a casting film tape by a scraper 2, the green tape is conveyed to a drying section along with the film tape, most of organic solvents are removed, certain toughness is obtained, the green tape is attached to a drying driving roller, the film tape and the green tape form a three-dimensional curved structure in the drying section, the green tape and the green tape are conveyed to the tail end of the casting machine after being sufficiently dried, the green tape and the film tape are separated, and the green tape and the film tape are rolled up by a tail end rolling shaft device. Compared with the second embodiment, the length of the drier of the casting machine can be shortened by 20% or more, and the three-dimensional bent green belt and film belt structure is more beneficial to full and uniform drying.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention and is not intended to limit the scope of the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a casting machine for ceramic forming, includes slurry tank, scraper, hot air dryer, base station, membrane area, bears the base member, its characterized in that: a drying driving roller and a drying driven roller are arranged on the base platform;
the drying driving roller and the drying driven roller can enable the film belt to be in a three-dimensional curved structure in the hot air dryer.
2. The casting machine for ceramic molding according to claim 1, characterized in that: the number of the drying driving roller and the drying driven roller is not less than 2, the drying driving roller and the drying driven roller are cylindrical or conical, and the surfaces of the drying driving roller and the drying driven roller are smooth.
3. The casting machine for ceramic molding according to claim 2, characterized in that: the drying driving roller is arranged at the wave crest of the three-dimensional curved structure, and the drying driven roller is arranged at the wave trough of the three-dimensional curved structure.
4. The casting machine for ceramic molding according to claim 3, characterized in that: the drying driven rollers are arranged in pairs, symmetrically press the edges of the film belt, and the length of the drying driven rollers is 0.05-0.2 of the width of the film belt.
5. The casting machine for ceramic molding according to claim 1, characterized in that: the scraper is in one of a plane plate shape, a comma shape and a cuboid shape with an inclined angle at the edge, and the scraper is made of stainless steel or hard carbon steel.
6. The casting machine for ceramic molding according to claim 1, characterized in that: the base station is a bearing steel structure of casting machine equipment.
7. The casting machine for ceramic molding according to claim 1, characterized in that: the hot air dryer is positioned above the base platform and the film belt, and the position of the base platform in the hot air dryer forms a drying section of the casting machine.
8. The casting machine for ceramic molding according to claim 1, characterized in that: the material of the film belt is one of polypropylene or polyester material.
9. The casting machine for ceramic molding according to claim 1, characterized in that: the bearing substrate is one of nickel-chromium alloy stainless steel, a glass plate and a polished granite plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120004979.5U CN215202528U (en) | 2021-01-04 | 2021-01-04 | Casting machine for ceramic forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120004979.5U CN215202528U (en) | 2021-01-04 | 2021-01-04 | Casting machine for ceramic forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215202528U true CN215202528U (en) | 2021-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120004979.5U Active CN215202528U (en) | 2021-01-04 | 2021-01-04 | Casting machine for ceramic forming |
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| CN (1) | CN215202528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116608647A (en) * | 2023-05-24 | 2023-08-18 | 江苏富乐华功率半导体研究院有限公司 | Drying method of silicon nitride green body |
-
2021
- 2021-01-04 CN CN202120004979.5U patent/CN215202528U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116608647A (en) * | 2023-05-24 | 2023-08-18 | 江苏富乐华功率半导体研究院有限公司 | Drying method of silicon nitride green body |
| CN116608647B (en) * | 2023-05-24 | 2024-04-09 | 江苏富乐华功率半导体研究院有限公司 | Drying method of silicon nitride green body |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Address after: 224200 No. 18 Hongda Road, Chengdong New District, Dongtai City, Yancheng City, Jiangsu Province Patentee after: Jiangsu fulehua Semiconductor Technology Co.,Ltd. Address before: 224200 No. 18 Hongda Road, Chengdong New District, Dongtai City, Yancheng City, Jiangsu Province Patentee before: JIANGSU FULEDE SEMICONDUCTOR TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |