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A kind of sn-ti-cu ternary alloy solder for quartz glass sealing

A sn-ti-cu, ternary alloy technology, applied in welding/cutting media/materials, welding equipment, welding media, etc., can solve the problems of high equipment condition requirements and complex processes, and improve the reliability of vacuum sealing, The effect of simple sealing process, improved service life and operational reliability

Active Publication Date: 2021-12-03
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-Cu ternary alloy solder for quartz glass sealing in this embodiment is tin, and the introduced Ti and Cu are composed of Ti: 0.1% and Cu: 1.0% according to weight percentage, and the introduced O is according to atomic percentage. The component is O: 0.05%. The melting point of the ternary alloy solder is 231.9°C. The ternary alloy solder is a sheet with a thickness of 0.2mm.

Embodiment 2

[0029] The substrate of the Sn-Ti-Cu ternary alloy solder for quartz glass sealing in this embodiment is tin, the introduced Ti and Cu are composed of Ti: 2.0% and Cu: 0.1% according to weight percentage, and the introduced O is according to atomic percentage The composition is O: 4.9%. 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-Cu ternary alloy solder for quartz glass sealing in this embodiment is tin, the introduced Ti and Cu are composed of Ti: 0.4% and Cu: 0.2% according to weight percentage, and the introduced O is according to atomic percentage The composition is O: 1.9%. The melting point of the ternary alloy solder is 231.9°C. The ternary alloy solder is a sheet with a thickness of 0.25mm.

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Abstract

The invention discloses a Sn-Ti-Cu ternary alloy solder for quartz glass sealing. The matrix of the ternary alloy solder is tin, the weight percent components of Ti and Cu introduced are Ti: 0.1%-2.0%, Cu: 0.1%-1.0%, and the atomic percent components of O introduced are 0.05%-4.9% %, the mass percentage of impurities in the ternary alloy solder is less than or equal to 0.1%. The welding temperature range of the ternary alloy solder is 650℃~800℃, and the welding vacuum degree is less than or equal to 5×10 ‑3 Pa. The ternary alloy solder does not need flux in the quartz glass sealing process, simplifies the quartz glass sealing process, and improves the vacuum sealing reliability of the quartz glass sealing. The ternary alloy solder can be widely used not only in quartz glass sealing, but also in silica glass, which has a softening temperature of not lower than 800 °C and is made of SiO 2 The mutual welding of glass, titanium, oxygen-free copper and metal with titanium coating on the surface as the main component is especially suitable for the preparation of pulsed xenon lamps, which can significantly improve the service life and working reliability of pulsed xenon lamps.

Description

technical field [0001] The invention belongs to the technical field of brazing solder, in particular to a Sn-Ti-Cu 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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Patent Type & Authority Patents(China)
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席治国
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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