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Seal glass for titanium thermal battery cover plate and sealing technology thereof

A technology for sealing glass and thermal batteries, which is applied to battery pack parts, circuits, electrical components, etc., can solve the problems of surface treatment difficulty and achieve excellent air tightness, performance improvement, and good air tightness

Inactive Publication Date: 2019-06-04
辽宁法库陶瓷工程技术研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, the chemical properties of titanium are active, and it reacts with oxygen, nitrogen, hydrogen and other gases at high temperature, which brings certain difficulties to the subsequent surface treatment work.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A sealing glass for a cover plate of a titanium thermal battery, comprising the following components in terms of molar percentages: SiO 2 : 20%; ZnO: 20%; B 2 o 3 : 20%; Bi 2 o 3 : 30%; CaO: 5%; Al 2 o 3 : 2%; Na 2 O: 3%.

[0016] A method for sealing the cover plate of a titanium thermal battery by using the above-mentioned glass, comprising the steps of:

[0017] 1) Put the mixture in claim 1 into an alumina crucible, heat it to 950°C, and keep it warm for about 100min;

[0018] 2) Pour the melted glass liquid into cold water to quench it, grind it into powder with absolute ethanol as a solvent, dry it and pass it through a 200-mesh sieve to obtain a sealing glass powder;

[0019] 3) The obtained glass powder is granulated by adding 5% by mass of an organic binder, and then made into a glass green body;

[0020] 4) The pre-firing temperature is 30°C, and the sintering molding temperature is 400°C;

[0021] 5) Use a graphite mold, an aluminum silicon carbide ...

Embodiment 2

[0023] A sealing glass for a cover plate of a titanium thermal battery, comprising the following components in terms of molar percentages: SiO 2 : 25%; ZnO: 25%; B 2 o 3 : 25%; Bi 2 o 3 : 20%; CaO: 2%; Al 2 o 3 : 2%; Na 2 O: 1%.

[0024] A method for sealing the cover plate of a titanium thermal battery by using the above-mentioned glass, comprising the steps of:

[0025] 1) Put the mixture in claim 1 into an alumina crucible, heat to 1000°C, and keep warm for about 125min;

[0026] 2) Pour the melted glass liquid into cold water to quench it, grind it into powder with absolute ethanol as a solvent, dry it and pass it through a 200-mesh sieve to obtain a sealing glass powder;

[0027] 3) The obtained glass powder is granulated by adding 6% by mass of an organic binder, and then made into a glass green body;

[0028] 4) The pre-firing temperature is 200°C, and the sintering molding temperature is 450°C;

[0029] 5) Use a graphite mold, an aluminum silicon carbide shel...

Embodiment 3

[0031] A sealing glass for a cover plate of a titanium thermal battery, comprising the following components in terms of molar percentages: SiO 2 : 30%; ZnO: 20%; B 2 o 3 : 20%; Bi 2 o 3 : 20%; CaO: 2%; Al 2 o 3 : 5%; Na 2 O: 3%.

[0032] A method for sealing the cover plate of a titanium thermal battery by using the above-mentioned glass, comprising the steps of:

[0033] 1) Put the mixture in claim 1 into an alumina crucible, heat it to 1150°C, and keep it warm for about 50min;

[0034] 2) Pour the melted glass liquid into cold water to quench it, grind it into powder with absolute ethanol as a solvent, dry it and pass it through a 200-mesh sieve to obtain a sealing glass powder;

[0035] 3) The obtained glass powder is granulated by adding 8% by mass of an organic binder, and then made into a glass green body;

[0036] 4) The pre-firing temperature is 400°C, and the sintering temperature is 500°C;

[0037] 5) Use a graphite mold, an aluminum silicon carbide shell, ...

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PUM

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Abstract

Belonging to the technical field of glass sealing, the invention in particular relates to a seal glass for a titanium thermal battery cover plate and a sealing technology thereof. The seal glass for atitanium thermal battery cover plate comprises the following components by mole percentage: 20-30% of SiO2; 20-30% of ZnO; 20-30% of B2O3; 20-30% of Bi2O3; 2-5% of CaO; 1-5% of Al2O3; and 1-5% of Na2O. According to the invention, by changing and regulating the components and dosage of common glass, the low temperature seal glass with excellent sealing performance can be obtained, and has the advantages of good matching with titanium after sealing, excellent air tightness and up-to-standard insulation resistance.

Description

technical field [0001] The invention belongs to the technical field of glass sealing, and in particular relates to a sealing glass used for a cover plate of a titanium thermal battery and a sealing process thereof. Background technique [0002] Titanium and titanium alloys are used in thermal battery casings and cover plates for special purposes. Titanium and titanium alloy cover plates and poles are sealed as thermal battery insulators. They are important components of thermal batteries and determine the quality of thermal batteries. The sealing material between the titanium and titanium alloy cover plate and the expansion alloy wire is glass. Because titanium and titanium alloys have high specific strength, low thermal conductivity, impact resistance and corrosion resistance, they are widely used in aerospace and other fields. [0003] For a long time, most of the low-temperature sealing materials use lead oxide-based glass, which is widely used in vacuum electronics, die...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C12/00C03C8/24H01M2/08
CPCY02E60/10
Inventor 李沐春杨国庆杨殿来许壮志薛健
Owner 辽宁法库陶瓷工程技术研究中心