CN219370704U - Sintering die for glass sealing insulator - Google Patents
Sintering die for glass sealing insulator Download PDFInfo
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- CN219370704U CN219370704U CN202223298546.9U CN202223298546U CN219370704U CN 219370704 U CN219370704 U CN 219370704U CN 202223298546 U CN202223298546 U CN 202223298546U CN 219370704 U CN219370704 U CN 219370704U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model provides a sintering die for a glass sealing insulator, which comprises a first-firing graphite bottom plate, a sintering graphite cover plate and a re-firing graphite bottom plate, wherein the first-firing graphite bottom plate, the sintering graphite cover plate and the re-firing graphite bottom plate are used for sintering the insulator; the upper end face of the first-fired graphite bottom plate is uniformly provided with counter bores, and the bottom of each counter bore is communicated with one lead positioning hole; four top corners of the upper end surface of the first-fired graphite bottom plate are respectively provided with a through hole; at least two bosses which are uniformly distributed are designed on the sintered graphite cover plate, and the circle center positions of the bosses correspond to the circle center positions of the counter bores; the insulator with the thickness of the glass sealing area of only 0.5mm is removed by using the die, and the glass sealing leakage can be completely avoided by designing the first sintering (first sintering) strong-pressure glass beads; by designing the secondary sintering (re-sintering) of the glass, the product with the bright glass glaze can be obtained, and the primary qualification rate and the quality level of the product are greatly improved by twice sintering in the actual production process.
Description
Technical Field
The utility model particularly relates to a sintering die for a glass sealing insulator.
Background
The glass matched sealing is generally formed by fusing 4J29 kovar alloy (with the expansion coefficient of 5.6x10 < -6 >/DEG C) with glass, and the glass matched sealing has direct relation between the quality of the glass sealing effect and the oxidation degree of metal parts before high-temperature sintering, but for products with certain special structures, such as products with the glass sealing thickness of only 0.5mm, a large proportion of glass sealing leakage (glass sealing leakage-the phenomenon that glass and a shell are not completely fused together) can occur after sintering, because glass beads firstly shrink into spheres around a lead in the sintering process, then slowly melt and infiltrate with a metal shell, and because the thickness of the glass beads is only 0.5mm, the glass parts are directly soaked on the lead in a sphere shape after fusion sealing and are not infiltrated with the shell, thereby the primary qualification rate of the products is seriously affected. Therefore, a glass sealing insulator sintering mold is provided to solve the problem.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a glass sealing insulator sintering die which can well solve the problems.
In order to meet the requirements, the utility model adopts the following technical scheme: providing a glass sealing insulator sintering mold, wherein the glass sealing insulator sintering mold comprises a first-firing graphite bottom plate, a sintering graphite cover plate and a re-firing graphite bottom plate, wherein the first-firing graphite bottom plate, the sintering graphite cover plate and the re-firing graphite bottom plate are used for sintering insulators; the upper end face of the first-fired graphite bottom plate is uniformly provided with counter bores, and the bottom of each counter bore is communicated with one lead positioning hole; four top corners of the upper end surface of the first-fired graphite bottom plate are respectively provided with a through hole; at least two bosses which are uniformly distributed are designed on the sintered graphite cover plate, and the circle center positions of the bosses correspond to the circle center positions of the counter bores; the boss is provided with a second lead positioning hole, the circle center position of the second lead positioning hole corresponds to the circle center position of the boss, and the bottom of the second lead positioning hole is provided with a chamfer; four top corners of the upper end surface of the sintered graphite cover plate are respectively provided with a through hole; the upper end surface of the re-sintered graphite bottom plate is uniformly provided with second counter bores, the bottom of each second counter bore is provided with a smaller counter bore with the diameter smaller than that of the second counter bore, the circle center position of each counter bore corresponds to that of the second counter bore, and the bottom of each counter bore is communicated with a third lead positioning hole; the center position of the third lead positioning corresponds to the center position of the second counter bore, and a second through hole is respectively arranged at four vertex angles of the upper end surface of the reburning graphite bottom plate.
The glass sealing insulator sintering mold has the following advantages:
the insulator with the thickness of the glass sealing area of only 0.5mm is removed by using the die, and the glass sealing leakage can be completely avoided by designing the first sintering (first sintering) strong-pressure glass beads; by designing the secondary sintering (re-sintering) of the glass, the product with the bright glass glaze can be obtained, and the primary qualification rate and the quality level of the product are greatly improved by twice sintering in the actual production process.
Drawings
The accompanying drawings, where like reference numerals refer to identical or similar parts throughout the several views and which are included to provide a further understanding of the present application, are included to illustrate and explain illustrative examples of the present application and do not constitute a limitation on the present application. In the drawings:
fig. 1 schematically illustrates a partial cross-sectional view of a glass seal insulator sintering mold according to one embodiment of the present application.
Fig. 2 schematically illustrates a schematic diagram of an insulator of a glass sealing insulator sintering mold according to one embodiment of the present application.
Fig. 3 schematically illustrates a partial cross-sectional view of a glass seal insulator sintering mold according to one embodiment of the present application.
Fig. 4 schematically illustrates a structural schematic of a first fired graphite chassis of a glass seal insulator sintering mold according to one embodiment of the present application.
Fig. 5 schematically illustrates a partial cross-sectional view of a first fired graphite base plate of a glass seal insulator sintering mold according to one embodiment of the present application.
Fig. 6 schematically illustrates a structural schematic of a sintered graphite cover plate of a glass seal insulator sintering mold according to one embodiment of the present application.
Fig. 7 schematically illustrates a partial cross-sectional view of a sintered graphite cover plate of a glass seal insulator sintering mold according to one embodiment of the present application.
Fig. 8 schematically illustrates a structural schematic of a reburning graphite base plate of a glass seal insulator sintering mold according to one embodiment of the present application.
Fig. 9 schematically illustrates a structural schematic of a reburning graphite base plate of a glass seal insulator sintering mold according to one embodiment of the present application.
Fig. 10 schematically illustrates a schematic diagram of a graphite dowel of a glass seal insulator sintering mold according to one embodiment of the present application.
Wherein: 1. an insulator; 2. an insulator housing; 3. glass beads; 4. a lead wire; 5. first firing a graphite bottom plate; 6. four corner through holes; 7. countersink; 8. a lead positioning hole; 9. sintering a graphite cover plate; 10. a through hole; 11. a boss; 12. a second lead positioning hole; 13. chamfering; 14. graphite locating pins; 15. re-firing the graphite bottom plate; 16. a second through hole; 17. a second counterbore; 18. a small counter bore; 19. and a third lead positioning hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and specific embodiments.
In the following description, references to "one embodiment," "an embodiment," "one example," "an example," etc., indicate that the embodiment or example so described may include a particular feature, structure, characteristic, property, element, or limitation, but every embodiment or example does not necessarily include the particular feature, structure, characteristic, property, element, or limitation. In addition, repeated use of the phrase "according to an embodiment of the present application" does not necessarily refer to the same embodiment, although it may.
Certain features have been left out of the following description for simplicity, which are well known to those skilled in the art.
According to one embodiment of the present application, there is provided a glass sealing insulator sintering mold, as shown in fig. 1 to 10, comprising a first-firing graphite base plate 5, a sintering graphite cover plate 9, and a re-firing graphite base plate 15 for sintering an insulator; the upper end face of the first-fired graphite bottom plate 5 is uniformly provided with counter bores 7, and the bottom of each counter bore 7 is communicated with a lead positioning hole 8; the four vertex angles of the upper end surface of the first-fired graphite bottom plate 5 are respectively provided with a through hole 6; at least two bosses 11 which are uniformly distributed are designed on the sintered graphite cover plate 9, and the circle center positions of the bosses 11 correspond to the circle center positions of the counter bores 7; the boss 11 is provided with a second lead positioning hole 12, the circle center position of the second lead positioning hole 12 corresponds to the circle center position of the boss 11, and the bottom of the second lead positioning hole 12 is provided with a chamfer 13; four top corners of the upper end surface of the sintered graphite cover plate 9 are respectively provided with a through hole 10; the upper end surface of the re-sintered graphite bottom plate 15 is uniformly provided with second counter bores 17, the bottom of each second counter bore 17 is provided with a smaller counter bore 18 with the diameter smaller than that of the second counter bore 17, the circle center position of the counter bore 18 corresponds to that of the second counter bore 17, and the bottom of each counter bore 18 is communicated with a third lead positioning hole 19; the center position of the third lead positioning hole 19 corresponds to the center position of the second counter bore 17, and a second through hole 16 is respectively arranged at four vertex angles of the upper end surface of the reburning graphite bottom plate 15.
Fig. 2 is a schematic structural diagram of an insulator 1 with a glass sealing area thickness of 0.5mm, and the insulator comprises an insulator shell 2, glass beads 3 and a lead 4, wherein the glass sealing area thickness is 0.5mm. The die designed by the utility model is used for melting and sintering the 3 parts together. As shown in fig. 4 and 5, a plurality of regularly distributed counter bores 7 are designed on the first-fired graphite bottom plate 5, wherein the diameter size of the counter bores 7 is 0.05mm larger than the outer diameter size (A in fig. 2) of the insulator housing 2, the depth of the counter bores 7 is equal to the height of the insulator housing 2, the bottom surface of the counter bores 7 is flat, the insulator housing 2 can be smoothly placed into the counter bores 7, a lead positioning hole 8 is designed on the bottom surface of the counter bores 7, the diameter size of the lead positioning hole 8 is 0.02-0.04mm larger than the diameter size of the lead 4, and the circle center position of the lead positioning hole 8 is the same as that of the counter bores 7, so that the coaxiality size of the lead 4 after sintering of a product can meet the requirement of a product drawing. 4 through holes 6 which are regularly distributed are designed around the first-fired graphite bottom plate 5, and the diameter size of each through hole 6 is designed to be 4.0-4.03mm. As shown in fig. 6 and 7: the sintered graphite cover plate 9 is provided with a plurality of bosses 11 which are regularly distributed, the circle center positions of the bosses 11 and the circle center positions of the counter bores 7 correspond to each other, the outer diameter of the sizes of the bosses 11 is smaller than the inner diameter B of the insulator housing 2 by 0.1mm, the height of the bosses 11 is equal to the size (C in fig. 2) of the insulator housing 2, the purpose of the process is to ensure that the bosses 11 can be pressed on the glass beads 3 in the first sintering (first sintering) process, the glass is limited to be spherically contracted in a molten state, the occurrence of defective sealing phenomenon of glass is avoided, the bosses 11 are provided with second lead positioning holes 12 which are regularly distributed, the diameter of the second lead positioning holes 12 is 0.05mm larger than that of the lead 4, the circle center positions of the second lead positioning holes 12 and the circle center positions of the bosses 11 correspond to each other, the other sides of the second lead positioning holes 12 are provided with chamfers 13, and the chamfers 13 are used for facilitating the assembly of a second sintering (re-sintering) product, and the periphery of the graphite cover plate 9 is provided with 4 through holes which are regularly distributed in a through hole diameter of 10.03-4 mm, and the diameter of the through hole is 4.03mm is designed to be equal to the diameter of the regular diameter of the through hole 4.0 mm. The method comprises the steps of carrying out a first treatment on the surface of the As shown in fig. 8 and 9: the second counter bore 17 which is regularly distributed is designed on the reburning graphite bottom plate 15, the diameter size of the second counter bore 17 is 0.05mm larger than the outer diameter size (A in fig. 2) of the insulator housing 2, the depth of the second counter bore 17 is equal to the height of the insulator housing 2, the purpose of the second counter bore is that the insulator housing 2 can be smoothly placed in the second counter bore 17, a counter bore 18 with smaller diameter is designed on the second counter bore 17, the diameter size of the counter bore 18 is 0.05mm larger than the size (B in fig. 2) of the insulator housing 2, the purpose of the second counter bore can ensure that glass is not contacted with graphite materials in the second sintering (reburning) process, a product with bright glass glaze is obtained after the second sintering, the circle center position of the counter bore 18 corresponds to the circle center position of the second counter bore 17, the diameter of the third lead positioning hole 19 is 0.05mm larger than the diameter of the lead 4, the circle center position of the third lead positioning hole 19 corresponds to the circle center position of the second counter bore 17, the diameter of the second lead wire positioning hole is designed to be 0.03 mm, the diameter of the second lead wire positioning hole is designed to be about 15, and the diameter of the second through hole is shown as shown in fig. 4-16.03 mm, and the diameter of the second through hole is shown as 4.4 and is shown in fig. 4.03 and is shown by the graph, and is 4mm and is shown in the specification 16 and is shown below 16 and is 4: the graphite positioning pin 14 is of a cylindrical structure, the diameter of the graphite positioning pin 14 is designed to be 3.98-4.00mm, and the main purpose of the graphite positioning pin 14 is to connect the first-fired graphite bottom plate 5, the sintered graphite cover plate 9 or connect the re-fired graphite bottom plate 15 and the sintered graphite cover plate 9.
The assembling and using method of the sintering mold of the insulator with the glass sealing thickness of 0.05mm comprises the following steps: the method is divided into a first sintering (primary sintering) process and a second sintering (secondary sintering) process. The die used in the first sintering (first sintering) process comprises a first-sintering graphite bottom plate 5, a sintering graphite cover plate 9 and a graphite positioning pin 14; the die used in the second sintering (re-sintering) process comprises a re-sintered graphite bottom plate 15, a sintered graphite cover plate 9 and a graphite positioning pin 14.
As shown in fig. 2, the assembly process of the first sintering (first firing) is as follows: firstly, placing the first-firing graphite base plate 5 on a flat working table top, then loading the insulator housings 2 into the counter bores 7 of the first-firing graphite base plate 5 one by one, then loading the glass beads 2 into the insulator housings 2 in sequence, inserting graphite positioning pins 14 into four corner through holes 6 of the first-firing graphite base plate 5, then placing the sintered graphite cover plate 9 on the first-firing graphite base plate 5 according to the direction shown in the figure 2 under the guiding action of the graphite positioning pins 14, finally inserting the lead wires 4 into second lead wire positioning holes (12) of the sintered graphite cover plate 9, and paying attention to checking whether the lead wires 4 are assembled in place or not, so as to finish the assembly process of first sintering (first firing).
As shown in fig. 2: the assembly process of the second sintering (re-sintering) is as follows: firstly, placing a re-sintered graphite bottom plate 15 on a flat working table top, then placing an insulator 1 (after the first sintering process, the insulator shell 2, the glass beads 3 and the lead 4 are solidified into a whole, and impurities such as graphite ash adhered on the glass glaze after first sintering are removed by chemical polishing) with the thickness of a glass sealing area of 0.5mm de1 on the flat working table top into a second counter bore 17 of the re-sintered graphite bottom plate 15, inserting graphite positioning pins 14 into four corner second through holes 16 of the re-sintered graphite bottom plate 15, and then placing a sintered graphite cover plate 9 on the re-sintered graphite bottom plate 15 according to the direction shown in a diagram 3 under the guiding action of the graphite positioning pins 14, thereby completing the second sintering (re-sintering) assembly process.
In summary, by designing the first-firing graphite bottom plate 5 and the sintered graphite cover plate 9, wherein the bottom surface of the counter bore 7 on the first-firing graphite bottom plate 5 is of a flat structure, and the boss 11 of the sintered graphite cover plate 9 strongly presses the glass beads 3, the insulator 1 with the thickness of 0.5mm in the sealing area completely avoids the occurrence of poor sealing leakage of glass after the first sintering; by designing the re-sintered graphite bottom plate 15, the counter bore 18 designed on the re-sintered graphite bottom plate 15 enables the lower surface of the glass to completely avoid adhering graphite, the glass is assembled by matching with the sintered graphite cover plate 9 as shown in fig. 3, so that the upper surface of the glass completely avoids adhering graphite.
The foregoing examples are merely representative of several embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model, which are within the scope of the utility model. The scope of the utility model should therefore be pointed out with reference to the appended claims.
Claims (7)
1. A sintering mold for a glass sealing insulator is characterized in that: the composite insulator comprises a first-firing graphite bottom plate, a sintering graphite cover plate and a re-firing graphite bottom plate, wherein the first-firing graphite bottom plate is used for sintering an insulator;
the upper end face of the first-fired graphite bottom plate is uniformly provided with counter bores, and the bottom of each counter bore is communicated with one lead positioning hole;
four top corners of the upper end surface of the first-fired graphite bottom plate are respectively provided with a through hole;
at least two bosses which are uniformly distributed are designed on the sintered graphite cover plate, and the circle center positions of the bosses correspond to the circle center positions of the counter bores;
the boss is provided with a second lead positioning hole, the circle center position of the second lead positioning hole corresponds to the circle center position of the boss, and the bottom of the second lead positioning hole is provided with a chamfer;
four top corners of the upper end surface of the sintered graphite cover plate are respectively provided with a through hole;
the upper end surface of the re-sintered graphite bottom plate is uniformly provided with second counter bores, the bottom of each second counter bore is provided with a smaller counter bore with the diameter smaller than that of the second counter bore, the circle center position of each counter bore corresponds to that of the second counter bore, and the bottom of each counter bore is communicated with a third lead positioning hole;
the center position of the third lead positioning corresponds to the center position of the second counter bore, and a second through hole is respectively arranged at four vertex angles of the upper end surface of the reburning graphite bottom plate.
2. The glass sealing insulator sintering mold according to claim 1, wherein: the insulator comprises an insulator shell, glass beads and leads;
the glass beads are embedded in the insulator housing, and the lead wires penetrate through the glass beads and penetrate through the insulator housing.
3. The glass sealing insulator sintering mold according to claim 1, wherein: the diameter size of the counter bore is 0.05mm larger than the outer diameter of the insulator housing, the depth of the counter bore is equal to the height of the insulator housing, and the bottom surface of the counter bore is of a flat structure.
4. The glass sealing insulator sintering mold according to claim 1, wherein: the diameter of the lead positioning hole is 0.02-0.04mm larger than that of the lead, and the circle center position of the lead positioning hole is the same as that of the counter bore.
5. The glass sealing insulator sintering mold according to claim 1, wherein: the diameter size of the through hole is 4.0-4.03mm.
6. The glass sealing insulator sintering mold according to claim 1, wherein: the outer diameter of the boss is 0.1mm smaller than the inner diameter of the insulator housing, the diameter of the second lead positioning hole is 0.05mm larger than the diameter of the lead, the diameter size of the through hole is designed to be 4.0-4.03mm, the diameter of the second counter bore is 0.05mm larger than the outer diameter size of the insulator housing, the depth of the second counter bore is equal to the height of the insulator housing, the diameter of the counter bore is 0.05mm larger than the inner diameter of the insulator housing, the diameter of the third lead positioning hole is 0.05mm larger than the diameter of the lead, and the diameter size of the second through hole is 4.0-4.03mm.
7. The glass sealing insulator sintering mold according to claim 1, wherein: the graphite locating pin is of a cylindrical structure with the diameter of 3.98-4.00 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223298546.9U CN219370704U (en) | 2022-12-02 | 2022-12-02 | Sintering die for glass sealing insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223298546.9U CN219370704U (en) | 2022-12-02 | 2022-12-02 | Sintering die for glass sealing insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219370704U true CN219370704U (en) | 2023-07-18 |
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ID=87141379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223298546.9U Active CN219370704U (en) | 2022-12-02 | 2022-12-02 | Sintering die for glass sealing insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219370704U (en) |
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2022
- 2022-12-02 CN CN202223298546.9U patent/CN219370704U/en active Active
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