CN214666062U - Pottery high temperature sintering tool - Google Patents
Pottery high temperature sintering tool Download PDFInfo
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- CN214666062U CN214666062U CN202023062462.6U CN202023062462U CN214666062U CN 214666062 U CN214666062 U CN 214666062U CN 202023062462 U CN202023062462 U CN 202023062462U CN 214666062 U CN214666062 U CN 214666062U
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Abstract
The utility model discloses a pottery high temperature sintering tool, including upper cover plate and lower apron, the upper cover plate bottom surface is provided with the poor groove of first section, the poor groove of first section sets up along the outer contour line of upper cover plate bottom surface, be provided with second section slot on the lower cover plate top surface outline, be provided with the tool frame between upper cover plate and the lower apron, the frame limit top and the first section slot of tool frame are inserted and are closed and be connected, and the frame limit bottom and the second section slot of tool frame are inserted and are closed and be connected, tool frame middle part is for holding the chamber. The upper cover plate, the lower cover plate and the jig frame form a closed space, the special ceramic is placed in the containing cavity for sintering, and the lining material in the sintering furnace is prevented from being volatilized and then contacting the special ceramic, so that the product is not polluted, and the product performance is ensured.
Description
Technical Field
The utility model belongs to the technical field of the ceramic manufacture technique and specifically relates to a pottery high temperature sintering tool is related to.
Background
The special ceramic is widely applied to various industries due to the excellent performance, for example, the aluminum nitride ceramic has excellent thermal conductivity, low expansion coefficient, high strength, high temperature resistance, chemical corrosion resistance, high resistivity and small dielectric loss, and is an ideal large-scale integrated circuit heat dissipation substrate and packaging material. The silicon nitride ceramic has the properties of high temperature resistance, excellent thermal shock resistance, high strength, high hardness, high wear resistance and the like, and is used for manufacturing high-performance bearings, balls and rapid cooling and heating resistant parts in a high-temperature environment.
Part of the special ceramics needs to be sintered in an oxygen-free vacuum environment, so that the materials are prevented from being oxidized. For example, a supporting suspended sintered ceramic jig disclosed in the chinese patent document, whose publication number "CN 207180376U", includes a jig body, a supporting table, a lamination positioning hole, an interlayer heat transfer hole, a table bottom heat transfer hole, a supporting leg, an inner clamping table, and a semicircular bracket; the jig comprises a jig body, wherein a plurality of supporting tables are arranged on the jig body in an array mode, laminated positioning holes are formed in four corners of the jig body, and a plurality of interlayer heat transfer holes are formed among the supporting tables; the bottom of the supporting table is provided with a table bottom heat transfer hole, and two supporting legs are arranged on two sides of the top of the supporting table; an inner clamping table and a semicircular bracket are arranged between the supporting legs. The jig carries out bearing positioning on a to-be-sintered piece through the supporting table configured in an array mode so as to achieve the purpose of improving sintering efficiency, but the method still cannot solve the problem that when special ceramics are sintered at high temperature, after trace volatilization of lining materials in a sintering furnace at high temperature, the lining materials can react with the special ceramics in a sintering cavity or a layer of film is generated on the surface of a product through precipitation, so that the performance of the product is influenced.
Disclosure of Invention
The method aims to solve the problems that in high-temperature sintering, after trace volatilization at high temperature, lining materials in a sintering furnace can react with special ceramics in a sintering cavity or precipitate on the surface of a product to form a layer of film, and the performance of the product is finally influenced. The utility model provides a pottery high temperature sintering tool, through upper and lower apron and tool frame, form closed space, place special type pottery in holding the intracavity sintering, avoided the interior lining material of fritting furnace to volatilize the back and contact special type pottery for the product does not receive the pollution, has guaranteed to produce property ability.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a pottery high temperature sintering tool, includes upper cover plate and lower apron, the upper cover plate bottom surface is provided with the poor groove of first section, the poor groove of first section sets up along upper cover plate bottom surface outer contour line, be provided with second section slot on the lower apron top surface outer contour line, be provided with the tool frame between upper cover plate and the lower apron, the frame limit top and the first section slot of tool frame are inserted and are closed and be connected, and the frame limit bottom and the second section slot of tool frame are inserted and are closed and be connected, tool frame middle part is for holding the chamber. The upper cover plate can be any polygon, one surface of the upper cover plate is completely flat, and a first section of differential groove is formed in the edge profile of the other surface of the upper cover plate. The shape of the lower cover plate corresponding to the upper cover plate can be any polygon, one surface is completely flat, and a second section of differential groove is designed along the edge outline of the other surface. The jig frame is arranged corresponding to the shapes of the upper cover plate and the lower cover plate, and serves as a supporting frame body between the upper cover plate and the lower cover plate and is used for supporting and forming an accommodating cavity for accommodating special ceramics between the upper cover plate and the lower cover plate.
The utility model discloses a characteristics lie in, through upper cover plate, lower apron cooperation tool frame, form the confined chamber that holds, place special ceramics in holding the intracavity sintering, avoided sintering furnace lining material to contact special ceramics after volatilizing for the product does not receive the pollution, has guaranteed to produce property ability.
Preferably, the jig frame is in interference connection with the first section of slot, the jig frame is in interference connection with the second section of slot, and the accommodating cavity is of a closed structure. The jig frame is in interference fit with the upper cover plate and the lower cover plate, the top of the jig frame and the first section of slot form hard seal, the bottom of the jig frame and the second section of slot form hard seal, the sealing performance of the containing cavity is effectively guaranteed, and the phenomenon that after trace volatilization of lining materials in the sintering furnace at high temperature, the lining materials can react with special ceramics in the sintering cavity or precipitate on the surface of a product to generate a layer of film to affect the quality of the product is avoided.
Preferably, the upper cover plate and the lower cover plate are provided with at least two jig frames, a jig plate is arranged between every two adjacent jig frames, the jig plate divides the containing cavity into a plurality of sub containing cavities, a third section of slot is arranged on the outline of the top surface of the jig plate, and a fourth section of slot is arranged on the outline of the bottom surface of the jig plate. The tool board is used for separating and holds the chamber, forms a plurality of son and holds the chamber for ceramic high temperature sintering tool can a plurality of products of sintering simultaneously, effectively promotes sintering efficiency.
Preferably, the jig frame is in interference connection with the third section of slot, and the jig frame is in interference connection with the fourth section of slot. When needs will hold the chamber and separate into a plurality of son and hold the chamber in order to promote sintering efficiency, the interference through between tool board and the tool frame is pegged graft and can be guaranteed that every son holds the sealing performance in chamber, guarantees that each son holds the product of intracavity and does not receive the volatile influence of fritting furnace lining material.
Preferably, the upper cover plate and the lower cover plate are symmetrically arranged along a horizontal axis of the jig frame, the upper cover plate is a circular plate, the first section of slot is an annular groove, the jig frame is a circular frame, and the jig frame is in interference insertion connection with the second section of slot. The upper cover plate and the lower cover plate can be of a circular structure, so that the sealing performance of the accommodating cavity after the upper cover plate and the lower cover plate are in interference connection with the jig frame is more excellent than that of a polygonal structure, and the product quality is further guaranteed.
Preferably, the upper cover plate and the lower cover plate are symmetrically arranged along a horizontal axis of the jig frame, the upper cover plate comprises at least three side edges, the side edge of the first section of slot corresponding to the upper cover plate comprises at least three corners, and the corners are arc corners. The upper cover plate and the cover plate can be polygonal edges, and when the upper cover plate and the cover plate are polygonal structures, corners between adjacent edges should be arc-shaped corners so as to ensure that the upper cover plate and the lower cover plate have higher sealing performance at the corners after the assembly of the jig frame and the jig plate is completed, and the edge breakage can be avoided in the assembly process.
Preferably, the thickness of the frame edge of the jig frame is equal to the width of the first section of slot. Frame limit thickness equals with section slot width, and this makes upper and lower apron and tool frame and tool board assembly accomplish the back, and whether technical staff can direct observation or measure ceramic high temperature sintering tool lateral wall parallel and level to this judgement equipment condition effectively avoids assembly error to cause the condition appearance that holds the sealed inefficacy of chamber.
Preferably, the upper cover plate, the lower cover plate, the jig frame and the jig plate are all made of high-purity boron nitride. The boron nitride material has ultrahigh heat resistance, stability and good heat conduction performance, and is very suitable for manufacturing a high-temperature vacuum sintering jig.
Therefore, the utility model discloses following beneficial effect has: (1) the upper cover plate, the lower cover plate and the jig frame form a closed space, and the special ceramic is placed in the accommodating cavity for sintering, so that the lining material of the sintering furnace is prevented from being volatilized and then contacting the special ceramic, the product is not polluted, and the product performance is ensured; (2) the corners of the upper cover plate, the lower cover plate and the jig frame are arc-shaped corners, so that the corners have higher sealing performance after the upper cover plate, the lower cover plate, the jig frame and the jig plate are assembled, and edge breakage can be avoided in the assembling process; (3) the upper cover plate, the lower cover plate, the jig plate and the jig frame are made of high-purity boron nitride, and have ultrahigh heat resistance, stability and good heat conduction performance; (4) the jig plate is used for partitioning the containing cavities to form a plurality of sub containing cavities, so that the ceramic high-temperature sintering jig can sinter a plurality of products at the same time, and the sintering efficiency is effectively improved; (5) simple structure and convenient operation.
Drawings
Fig. 1 is a side sectional view of the present invention.
Fig. 2 is a top view of the jig frame in fig. 1.
Fig. 3 is a cross-sectional view taken at a-a in fig. 2.
Fig. 4 is a side view of the jig plate of fig. 1.
Fig. 5 is a side view of the upper cover plate of fig. 1.
Fig. 6 is a side view of the lower deck of fig. 1.
In the figure: 1. the ceramic jig comprises an upper cover plate, 11, a first section of differential groove, 2, a lower cover plate, 21, a second section of differential groove, 3, a jig frame, 31, an accommodating cavity, 311, a sub-accommodating cavity, 32, a frame edge, 4, a jig plate, 41, a third section of slot, 42, a fourth section of slot, 5, a corner, 6 and a special ceramic product.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1
As shown in figures 1 and 2, the ceramic high-temperature sintering jig comprises an upper cover plate and a lower cover plate, wherein a first section of differential groove is formed in the bottom surface of the upper cover plate, the first section of differential groove is formed in the outer contour line of the bottom surface of the upper cover plate, a second section of slot is formed in the outer contour line of the top surface of the lower cover plate, a jig frame is arranged between the upper cover plate and the lower cover plate, the top of the frame edge of the jig frame is connected with the first section of slot in an inserting mode, the bottom of the frame edge of the jig frame is connected with the second section of slot in an inserting mode, and the middle of the jig frame is a holding cavity. As shown in fig. 5, the upper cover plate may be any polygon, one surface of which is completely flat, and the other surface of which is provided with a first section of differential groove along the edge profile. The jig comprises an upper cover plate, a lower cover plate and a plurality of sub-containing cavities, wherein the upper cover plate and the lower cover plate are provided with at least two jig frames, a jig plate is arranged between every two adjacent jig frames, the jig plate divides the containing cavities into a plurality of sub-containing cavities, as shown in fig. 4, a third section of slot is arranged on an outline of the top surface of the jig plate, and a fourth section of slot is arranged on an outline of the bottom surface of the jig plate. As shown in fig. 6, the shape of the lower cover plate corresponding to the upper cover plate may be any polygon, one surface is completely flat, and the other surface is designed with a second step groove along the edge profile. The jig frame is arranged corresponding to the shapes of the upper cover plate and the lower cover plate, and serves as a supporting frame body between the upper cover plate and the lower cover plate and is used for supporting and forming an accommodating cavity for accommodating special ceramics between the upper cover plate and the lower cover plate. The tool board is used for separating and holds the chamber, forms a plurality of son and holds the chamber for ceramic high temperature sintering tool can a plurality of products of sintering simultaneously, effectively promotes sintering efficiency. The utility model is characterized in that the sintering temperature in the sintering furnace is 1800-1900 ℃, the lining of the sintering furnace contains carbon element, and in the sintering process, carbon can volatilize and adhere to the surface of the product. The upper cover plate and the lower cover plate are matched with the jig frame to form a closed containing cavity, the special ceramic product is placed in the containing cavity for sintering, and the lining material in the sintering furnace is prevented from being volatilized and then contacting the special ceramic, so that the product is not polluted, and the product performance is ensured.
As shown in fig. 3, the jig frame is in interference connection with the first section of slot, the jig frame is in interference connection with the second section of slot, and the accommodating cavity is of a closed structure. The jig frame is in interference connection with the third section of slot, and the jig frame is in interference connection with the fourth section of slot. The jig frame is in interference fit with the upper cover plate and the lower cover plate, the top of the jig frame and the first section of slot form hard seal, the bottom of the jig frame and the second section of slot form hard seal, the sealing performance of the containing cavity is effectively guaranteed, and the phenomenon that after trace volatilization of lining materials in the sintering furnace at high temperature, the lining materials can react with special ceramics in the sintering cavity or precipitate on the surface of a product to generate a layer of film to affect the quality of the product is avoided. When needs will hold the chamber and separate into a plurality of son and hold the chamber in order to promote sintering efficiency, the interference through between tool board and the tool frame is pegged graft and can be guaranteed that every son holds the sealing performance in chamber, guarantees that each son holds the product of intracavity and does not receive the volatile influence of fritting furnace lining material.
The upper cover plate and the lower cover plate are symmetrically arranged along the horizontal axis of the jig frame, the upper cover plate comprises at least three side edges, the side edge of the first section of the slot corresponding to the upper cover plate comprises at least three corner angles, and the corner angles are arc angles. The upper cover plate and the cover plate can be polygonal edges, and when the upper cover plate and the cover plate are polygonal structures, corners between adjacent edges should be arc-shaped corners so as to ensure that the upper cover plate and the lower cover plate have higher sealing performance at the corners after the assembly of the jig frame and the jig plate is completed, and the edge breakage can be avoided in the assembly process.
It is noted that the frame edge thickness of the jig frame is equal to the width of the first section of slot. Frame limit thickness equals with section slot width, and this makes upper and lower apron and tool frame and tool board assembly accomplish the back, and whether technical staff can direct observation or measure ceramic high temperature sintering tool lateral wall parallel and level to this judgement equipment condition effectively avoids assembly error to cause the condition appearance that holds the sealed inefficacy of chamber.
In this embodiment, the product is aluminum nitride, and the upper cover plate, the lower cover plate, the jig frame, and the jig plate are all made of high-purity boron nitride. The boron nitride material has ultrahigh heat resistance, stability and good heat conduction performance, and is very suitable for manufacturing a high-temperature vacuum sintering jig.
As shown in fig. 1, the ceramic high-temperature sintering jig disclosed in this embodiment adopts four jig plates to form five sub-accommodation cavities. The jig frame is placed on the lower cover plate, and the bottom of the frame edge is in interference fit with the second section difference groove of the lower cover plate and is sealed in an inserting mode. The jig plate is placed at the top of the jig frame, and the fourth section of the differential groove is in interference fit with the top of the frame edge of the jig frame and is sealed in an inserting mode. Another jig frame is placed on the jig plate, and the bottom of the frame edge of the jig frame is in interference insertion with the third section of slot of the jig plate. And installing other two jig plates in sequence, and finally placing the upper cover plate at the top of the jig frame at the top, wherein the top of the frame edge of the jig frame is in interference insertion with the first section of slot of the upper cover plate.
In the embodiment, the containing cavity is formed after the upper cover plate and the lower cover plate are in interference insertion connection with the jig frame, when the special ceramic product is placed in the containing cavity for sintering, the special ceramic product is not directly contacted with volatile matters of lining materials in a sintering furnace at high temperature, the product is prevented from being polluted, and the product quality is ensured.
Example 2
Different from embodiment 1, in this embodiment, the upper cover plate and the lower cover plate are symmetrically disposed along a horizontal axis of the jig frame, and particularly, the upper cover plate, the lower cover plate and the jig plate are circular plates, and correspondingly, the jig frame is an annular frame. The first section of slot is an annular groove, the jig frame is a circular frame, and the jig frame is in interference insertion connection with the second section of slot. The upper cover plate and the lower cover plate can be of a circular structure, so that the sealing performance of the accommodating cavity after the upper cover plate and the lower cover plate are in interference connection with the jig frame is more excellent than that of a polygonal structure, and the product quality is further guaranteed.
Claims (9)
1. The utility model provides a pottery high temperature sintering tool, characterized by includes upper cover plate and lower cover plate, the upper cover plate bottom surface is provided with the poor groove of first section, the poor groove of first section sets up along the outer contour line of upper cover plate bottom surface, be provided with second section slot on the lower cover plate top surface outline, be provided with the tool frame between upper cover plate and the lower cover plate, the frame limit top and the first section slot of tool frame are inserted and are closed and be connected, and the frame limit bottom and the second section slot of tool frame are inserted and are closed and be connected, tool frame middle part is for holding the chamber.
2. The jig for high-temperature sintering of ceramics according to claim 1, wherein the jig frame is connected with the first section of slot by interference fit, the jig frame is connected with the second section of slot by interference fit, and the accommodating cavity is a closed structure.
3. The jig for high-temperature sintering of ceramics according to claim 1, wherein at least two jig frames are provided on the upper cover plate and the lower cover plate, a jig plate is provided between the adjacent jig frames, the jig plate divides the containing cavity into a plurality of sub containing cavities, a third section of slot is provided on the outline of the top surface of the jig plate, and a fourth section of slot is provided on the outline of the bottom surface of the jig plate.
4. The jig for high-temperature sintering of ceramics according to claim 3, wherein the jig frame is connected with the third slot by interference fit, and the jig frame is connected with the fourth slot by interference fit.
5. The jig for high-temperature sintering of ceramics according to any one of claims 1 to 4, wherein the upper cover plate and the lower cover plate are symmetrically arranged along the horizontal axis of the jig frame, the upper cover plate is a circular plate, the first section of slot is an annular slot, the jig frame is a circular frame, and the jig frame is inserted into the second section of slot in an interference manner.
6. The jig for high-temperature sintering of ceramics according to any one of claims 1 to 4, wherein the upper cover plate and the lower cover plate are symmetrically arranged along the horizontal axis of the jig frame, the upper cover plate comprises at least three sides, the first section of slot comprises at least three corners corresponding to the sides of the upper cover plate, and the corners are circular arc corners.
7. The jig for high temperature sintering of ceramics according to claim 1, wherein the thickness of the frame edge of the jig frame is equal to the width of the first section of the slot.
8. The jig for high-temperature sintering of ceramics according to claim 1, wherein the upper cover plate, the lower cover plate and the jig frame are made of boron nitride.
9. The jig for high temperature sintering of ceramics according to claim 3, wherein the jig plate is a boron nitride member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062462.6U CN214666062U (en) | 2020-12-17 | 2020-12-17 | Pottery high temperature sintering tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062462.6U CN214666062U (en) | 2020-12-17 | 2020-12-17 | Pottery high temperature sintering tool |
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| CN214666062U true CN214666062U (en) | 2021-11-09 |
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| CN202023062462.6U Active CN214666062U (en) | 2020-12-17 | 2020-12-17 | Pottery high temperature sintering tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115368142A (en) * | 2022-07-28 | 2022-11-22 | 杭州大和江东新材料科技有限公司 | Low dielectric loss aluminum nitride ceramic material and preparation method thereof |
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2020
- 2020-12-17 CN CN202023062462.6U patent/CN214666062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115368142A (en) * | 2022-07-28 | 2022-11-22 | 杭州大和江东新材料科技有限公司 | Low dielectric loss aluminum nitride ceramic material and preparation method thereof |
| CN115368142B (en) * | 2022-07-28 | 2023-07-14 | 杭州大和江东新材料科技有限公司 | Low dielectric loss aluminum nitride ceramic material and preparation method thereof |
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