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Sn-Ti-Ag ternary alloy welding flux for quartz glass sealing

A technology of ternary alloy and quartz glass, which is applied in welding/cutting medium/material, welding medium, welding equipment, etc., can solve the problems of complex process and high requirements of equipment conditions, achieve simple sealing process and improve the reliability of vacuum sealing , the effect of good structural strength

Active Publication Date: 2019-07-09
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This sealing method between quartz glass and metal is complex in process and requires high equipment conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The substrate of the Sn-Ti-Ag ternary alloy solder for quartz glass sealing in this embodiment is tin, and the introduced Ti and Ag are composed of Ti: 0.1% and Ag: 2.0% according to weight percentage, and the introduced O is according to atomic percentage. The component is O: 0.05%. The melting point of ternary alloy solder is 221°C. The ternary alloy solder is a sheet with a thickness of 0.3 mm.

Embodiment 2

[0029] The substrate of the Sn-Ti-Ag ternary alloy solder for quartz glass sealing in this embodiment is tin, and the introduced Ti and Ag are composed of Ti: 2.0% and Ag: 0.1% according to weight percentage, and the introduced O is according to atomic percentage. The composition is O: 3.9%. The melting point of the ternary alloy solder is 231.9°C. The ternary alloy solder is a sheet with a thickness of 0.4mm.

Embodiment 3

[0031] The substrate of the Sn-Ti-Ag ternary alloy solder for quartz glass sealing in this embodiment is tin, and the introduced Ti and Ag are composed of Ti: 0.2% and Ag: 1.2% according to weight percentage, and the introduced O is according to atomic percentage. The component is O: 0.1%. The melting point of ternary alloy solder is 221°C. The ternary alloy solder is a sheet with a thickness of 0.15mm.

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Abstract

The invention discloses Sn-Ti-Ag ternary alloy welding flux for quartz glass sealing. Tin serves as a matrix of the ternary alloy welding flux; according to the weight percents of introduced Ti and Ag, Ti ranges from 0.1% to 1.6%, and Ag ranges from 0.1% to 2.0%; the atomic percent of introduced O ranges from 0.05% to 3.9%; and the mass percent of impurities in the ternary alloy welding flux is smaller than or equal to 0.1%. The welding temperature range of the ternary alloy welding flux ranges from 650 DEG C to 800 DEG C, and the welding vacuum degree is smaller than or equal to 5*10<-3> Pa.In the quartz glass sealing process, the ternary alloy welding flux needs no scaling powder, the quartz glass sealing technology is simplified, and vacuum sealing reliability of the ternary alloy welding flux is improved. The ternary alloy welding flux can be widely applied to quartz glass sealing and can be applied to welding of quartz glass, glass with the softening temperature not lower than 80DEG C and with SiO2 as the main component, a titanium material, oxygen-free copper, metal with titanium plating layers on surfaces and the like, the ternary alloy welding flux is especially suitablefor preparing a pulse xenon lamp, the service life of the pulse xenon lamp can be remarkably prolonged, and the work reliability of the pulse xenon lamp can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of brazing solder, in particular to a Sn-Ti-Ag ternary alloy solder for quartz glass sealing. Background technique [0002] The ternary alloy solder for quartz glass sealing can be widely used in the fields of electric vacuum equipment, electric light source, solar receiver tube and lithium battery, etc. The welding zone has good vacuum sealing performance and high structural strength. High-power pulsed xenon lamps are widely used as pump light sources for large lasers. In the high-power pulsed xenon lamp preparation technology, how to realize the vacuum seal between quartz glass and metal has always been a technical difficulty, because the thermal expansion coefficient of quartz glass and metal is an order of magnitude different, and there is a large sealing stress. [0003] The currently widely used sealing method between quartz glass and metal is to use several transition glasses to connect quartz glass ...

Claims

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Application Information

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IPC IPC(8): B23K35/26
CPCB23K35/26B23K35/262
Inventor 郝万立马永波彭述明龙兴贵张伟光周晓松曹清薇王宏波符雪梅刘猛
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF