Sn-Ti-Cu ternary alloy welding flux used for sealing of quartz glass

A sn-ti-cu, ternary alloy technology, applied in welding/cutting media/materials, welding media, welding equipment, 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: 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-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 Sn-Ti-Cu ternary alloy welding flux used for sealing of quartz glass. The matrix of the Sn-Ti-Cu ternary alloy welding flux is tin; the weight percentage of introduced Ti and Cu are 0.1%-2.0% of Ti and 0.1%-1.0% of Cu; the atomic percentage of introduced O is 0.05%-4.9%; and the mass percentage 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 is 650 DEG C to 800 DEG C; and the welding vacuum degree is smaller than or equal to 5 multiplied by 10<-3> Pa. The ternary alloy welding flux has the advantages that no scaling powder is needed during the quartz glass sealing process; the quartz glass sealing technique is simplified; the vacuum sealing reliability of quartz glass sealing is improved; the ternary alloy welding flux can be widely applied to quartz glass sealing, and can also be applied to mutual welding of quartz glass, glass which has softening temperature above800 DEG C and takes SiO2 as the main component, a titanium material, oxygen-free copper, metal of which the surface is provided with a titanium cladding layer and the like; the ternary alloy weldingflux is especially applicable to manufacturing pulse xenon lamps; the service lives of the pulse xenon lamps can be prolonged; and the reliability of the pulse xenon lamps is obviously improved.

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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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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