CN111162325A - Hot-pressing sealing tool - Google Patents
Hot-pressing sealing tool Download PDFInfo
- Publication number
- CN111162325A CN111162325A CN201911112753.0A CN201911112753A CN111162325A CN 111162325 A CN111162325 A CN 111162325A CN 201911112753 A CN201911112753 A CN 201911112753A CN 111162325 A CN111162325 A CN 111162325A
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- Prior art keywords
- workpiece
- welding
- pull rod
- metal
- sealing tool
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/38—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to a hot-press sealing tool which comprises a metal pull rod, a main workpiece, a welding workpiece and a positioning fixing piece, wherein the main workpiece, the welding workpiece and the positioning fixing piece are pressed and installed together by the metal pull rod. The pull rod type tool is convenient to assemble and disassemble, high in yield, high in production efficiency, not prone to deformation and bending, good in product sealing performance consistency, small in sealing surface stress, long in service life and easy for large-scale production.
Description
Technical Field
The invention relates to the field of tools, in particular to a hot-press sealing tool.
Background
The sodium-nickel battery and the sodium-sulfur battery are novel energy storage batteries, and become research hotspots due to the advantages of high specific energy, strong environmental adaptability, large discharge power, no self-discharge, low cost, no pollution and the like, and are preferred as distributed energy batteries. The core diaphragm materials of the two batteries are alumina ceramic tubes, the shells are metal materials, and the single electric core needs to be completely sealed, so that high-strength and high-airtightness sealing of the ceramic and the metal materials needs to be realized. Energy storage battery generally requires life to be up to more than 10 years, and is unusually high to the requirement of sealing quality, and the airtight sealing to heterogeneous material at present adopts hot pressing sealing mode to realize high strength and high gas tightness usually, reduces the stress that sealing stress and coefficient of expansion mismatch produced simultaneously, promotes sealing performance and life.
At present, the hot-press sealing is generally applied by pressure. For example, chinese patent CN201420332129.8 describes a graphite mold for sealing alumina ceramics and metals, wherein the upper and lower graphite molds have a circular groove respectively for accommodating and positioning the ceramic ring and the upper and lower metal rings, each mold is loaded with 2 products, and hot press sealing is performed by direct pressure application. For another example, chinese patent CN201620870710.4 describes a hot-press sealing mold for sodium-sulfur battery, which uses a circular upper positioning cover and a lower positioning base to complete the positioning of a ceramic ring and two metal rings through the cooperation of the upper positioning cover and the lower positioning base, and each mold is loaded with 1 product, and also uses a direct pressure application method to perform hot-press sealing. The hot-pressing sealing process directly adopting the pressure applying mode has the advantages of small loading capacity, low production capacity, time and labor consuming loading and unloading, high energy consumption of a single product, uneven stress caused by the mode if the loading capacity is increased, and serious influence on sealing quality and service life.
Disclosure of Invention
In order to solve the technical problem, the invention provides a hot-press sealing tool which comprises a metal pull rod, a main workpiece, a welding workpiece and a positioning fixing piece, wherein the main workpiece, the welding workpiece and the positioning fixing piece are pressed and assembled together by the metal pull rod.
Furthermore, the metal pull rod comprises a supporting structural part and a metal pull rod bottom support, and the main workpiece, the welding workpiece and the positioning fixing part are pressed between the supporting structural part and the metal pull rod bottom support.
Furthermore, the main workpiece is an alumina ceramic ring, the welding workpiece is a nickel metal ring or an aluminum and aluminum alloy ring, and the metal pull rod is kovar alloy or molybdenum-zirconium-titanium alloy.
Furthermore, the main workpiece is alumina ceramic, the welding workpiece is a kovar alloy ring, and the metal pull rod is square or round stainless steel.
Furthermore, the number of the welding workpieces is two, the main body workpiece is located between the two welding workpieces, and the positioning fixing piece presses the welding workpieces.
Further, the positioning fixing piece also comprises a spacer, and the spacer presses the positioning fixing piece.
The invention also protects a combined workpiece.
The invention has the advantages of convenient assembly and disassembly, high yield, high production efficiency, difficult deformation and bending of the pull rod, good consistency of sealing performance of products, small stress of a sealing surface, long service life and easy large-scale production by adopting a pull rod type tool mode.
Drawings
FIG. 1 is a schematic view of the inventive tool;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a cross-sectional view taken at E-E of FIG. 2;
FIG. 4 is a schematic view of another embodiment of the tooling of the present invention;
FIG. 5 is a schematic view of the structure of the composite workpiece of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
The invention relates to a hot-pressing tool mechanism 10 which adopts a tension type pressing mode and has high yield and high loading efficiency, and the mechanism comprises: the device comprises a metal pull rod 1, a supporting structural member 5 and a metal pull rod bottom support 6 which are arranged on the metal pull rod 1, a main workpiece 2, a welding workpiece 3 and a positioning fixing member 4. The positioning fixing pieces 4 are specially designed according to the shapes and structures of the specific main body workpiece 2 and the welding workpieces 3, the welding workpieces 3 are placed on or under the main body workpiece 2 and are positioned and fixed by the positioning fixing pieces 4, the welding workpieces are a group, a plurality of groups of the welding workpieces are sequentially sleeved on the metal pull rod 1, and isolation gaskets can be placed between two ends or between each group of the metal pull rod 1, so that loading is completed. The metal pull rod 1 is matched with the positioning and fixing piece 4, the main body workpiece 2 and the welding workpiece 3 in size properly so as to ensure good concentricity after loading. The metal pull rod 1 is sleeved on the supporting structural member 5, the whole tool mechanism is placed in a specific kiln to be heated to a specific temperature for heat preservation, a proper atmosphere is selected according to the product type for protection, tension is applied to the upper end of the metal pull rod 1, the supporting structural member 5 is jacked to generate compressive stress on the workpiece, and under the working condition, molecular thermal diffusion occurs on the microcosmic surfaces of the main workpiece 2 and the welding workpiece 3, so that the hot-press sealing and combination between the main workpiece 2 and the welding workpiece 3 are realized. As shown in FIG. 5, a plurality of hot pressing tool mechanisms are arranged on one plate, so that combined workpieces 20 are set, the combined workpieces 20 are placed in the same kiln, the tool mechanism is convenient in product loading and unloading, high in yield and efficiency, good in sealing strength and air tightness, good in product consistency, convenient for large-scale production and wide in application prospect, and the pull rod is not prone to bending deformation.
The material of the metal pull rod 1 is preferably kovar alloy or molybdenum-zirconium-titanium alloy, the diameter of the metal pull rod 1 is a cylinder of 10mm-30mm, and the length of the metal pull rod 1 is 1 m-1.5 m; the main workpiece 2 is preferably an alumina ceramic ring, the surface of the alumina ceramic ring is subjected to metallization treatment, and an inner hole of the ceramic ring is a round hole with the diameter of 10mm-30 mm; the welding workpiece 3 is preferably a nickel metal ring or an aluminum and aluminum alloy ring, and comprises metal rings with two shapes and purposes for sealing with the upper surface and the lower surface of the main workpiece respectively; preferably, 20 to 100 groups of products can be connected in series on one metal pull rod, and 5 to 30 rods can be placed on one kiln at the same time.
The metal pull rod 1 can also be square or round stainless steel and comprises a cylindrical bottom support, a main workpiece is a 2-ceramic ring, a ceramic sealing surface is subjected to metallization treatment in advance, a welding workpiece 3 is a kovar alloy ring, a positioning fixing piece 4 is made of alumina ceramic, a supporting structural part 5 is of a boss structure, and an inner hole is a square hole.
The metal tie rods 1, the support structure 5 and the bottom support can be arranged in different shapes according to the requirement.
Referring to fig. 4, the welding workpiece 3 of the present invention may also include an upper welding workpiece and a lower welding workpiece, the welding workpiece is made of nickel or aluminum alloy, the main workpiece 2 is located between the upper welding workpiece and the lower welding workpiece 3, the positioning fixing member 4 presses the welding workpiece 3, and the spacer 9 presses the positioning fixing member 4.
The mechanism can be applied to hot-press sealing, vacuum diffusion welding, ceramic-metal sealing and the like in the fields of sodium-nickel batteries, sodium-sulfur batteries, heat pipe type vacuum tube solar collectors, vacuum microwave devices, traveling wave tubes, switch tubes and the like, so that the production efficiency is greatly improved, and the energy consumption and the cost are reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to substitute or change the technical solution and concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The utility model provides a hot pressing sealing-in frock, includes metal pull rod, main part work piece, welding workpiece, location mounting, its characterized in that: the metal pull rod presses and installs the main body workpiece, the welding workpiece and the positioning fixing piece together.
2. The thermocompression sealing tool of claim 1, wherein the metal tie bar comprises a support structure and a metal tie bar base, and the main workpiece, the welding workpiece and the positioning fixture are pressed between the support structure and the metal tie bar base.
3. The hot-press sealing tool according to claim 1 or 2, wherein the main workpiece is an alumina ceramic ring, the welding workpiece is a nickel metal ring or an aluminum and aluminum alloy ring, and the metal pull rod is kovar alloy or molybdenum zirconium titanium alloy.
4. The thermocompression sealing tool according to claim 1 or 2, wherein the main workpiece is alumina ceramic, the welding workpiece is a kovar alloy ring, and the metal tie rod is square or round stainless steel.
5. The thermocompression sealing tool according to claim 1, wherein there are two welding workpieces, the main workpiece is located between the two welding workpieces, and the positioning fixture presses the welding workpieces.
6. The thermocompression sealing tool of claim 1, further comprising a spacer that presses against the positioning fixture.
7. A composite workpiece comprising a thermocompression sealing tool of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112753.0A CN111162325A (en) | 2019-11-14 | 2019-11-14 | Hot-pressing sealing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112753.0A CN111162325A (en) | 2019-11-14 | 2019-11-14 | Hot-pressing sealing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111162325A true CN111162325A (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911112753.0A Pending CN111162325A (en) | 2019-11-14 | 2019-11-14 | Hot-pressing sealing tool |
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| CN (1) | CN111162325A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6080508A (en) * | 1998-03-06 | 2000-06-27 | Electrofuel Inc. | Packaging assembly for a lithium battery |
| CN102699593A (en) * | 2012-05-16 | 2012-10-03 | 安徽华东光电技术研究所 | Welding fixture for diffusion welding of dissimilar metal and welding method thereof |
| CN103123984A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Glass sealing process of sodium-sulfur battery |
| CN202996993U (en) * | 2012-12-12 | 2013-06-12 | 上海电气钠硫储能技术有限公司 | Hot pressing fixture for sodium-sulfur battery |
| CN106784449A (en) * | 2016-12-14 | 2017-05-31 | 上海电气钠硫储能技术有限公司 | A kind of metal to ceramic sealing technique for sodium-sulphur battery production |
| CN208336429U (en) * | 2018-07-30 | 2019-01-04 | 中国东方电气集团有限公司 | A kind of hot-press tooling of sodium-sulphur battery |
-
2019
- 2019-11-14 CN CN201911112753.0A patent/CN111162325A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6080508A (en) * | 1998-03-06 | 2000-06-27 | Electrofuel Inc. | Packaging assembly for a lithium battery |
| CN102699593A (en) * | 2012-05-16 | 2012-10-03 | 安徽华东光电技术研究所 | Welding fixture for diffusion welding of dissimilar metal and welding method thereof |
| CN103123984A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Glass sealing process of sodium-sulfur battery |
| CN202996993U (en) * | 2012-12-12 | 2013-06-12 | 上海电气钠硫储能技术有限公司 | Hot pressing fixture for sodium-sulfur battery |
| CN106784449A (en) * | 2016-12-14 | 2017-05-31 | 上海电气钠硫储能技术有限公司 | A kind of metal to ceramic sealing technique for sodium-sulphur battery production |
| CN208336429U (en) * | 2018-07-30 | 2019-01-04 | 中国东方电气集团有限公司 | A kind of hot-press tooling of sodium-sulphur battery |
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Application publication date: 20200515 |