A non-contact ultrasonic brazing connection method for preparing quartz glass joints

A non-contact ultrasonic and quartz glass technology, applied in welding equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of large residual stress in high-temperature joints and difficult low-temperature connections, and achieve low production costs, high productivity, and simple connection processes Effect

Active Publication Date: 2022-05-13
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide a non-contact ultrasonic brazing connection method for preparing quartz glass joints, which is used to solve the existing quartz glass connection methods, low temperature connection difficulties and Problems such as large residual stress of high temperature joints

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  • A non-contact ultrasonic brazing connection method for preparing quartz glass joints

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention will be further described:

[0014] This non-contact ultrasonic brazing connection method for preparing quartz glass joints:

[0015] 1. The width of the solder foil is processed to be exactly the same as that of the quartz glass. The solder foil is Sn-(8~13)Zn-(0.1~5)Ti-(0.01~3)Al foil.

[0016] 2. Use sandpaper to grind the surface of the solder foil, wash it with acetone for 10-30 minutes, then fill the solder foil prepared in step 1 between the two surfaces of the quartz glass to be welded, and set it on the heating device 4, then raise the temperature to 100-400°C at a rate of 1-5°C / min, keep it warm for 5-10 minutes, and place it in a static magnetic field in a vertical direction. figure 1 , the permanent magnet 1 and the coil 2 are located directly above the liquid solder 3, the static magnetic field is generated by a superconducting magnet, and its magnetic induction is 1~12T, the coil genera...

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Abstract

The invention relates to a non-contact ultrasonic brazing connection method for preparing quartz glass joints, which includes: 1. Processing the width of the solder foil to be consistent with the size of the quartz glass; 2. Grinding the surface of the solder foil , cleaned with acetone, then filled the solder foil between the two surfaces of the quartz glass to be welded, and then raised the temperature to 100-400°C at a rate of 1-5°C / min, kept it for 5-10min, and placed it on In the static magnetic field in the vertical direction, the magnetic induction intensity is 1~12T, and the coil generates an AC magnetic field with a frequency of 2~10 kHz. At the same time, a pressure of 0.1~1MPa is applied to the upper end of the quartz glass. Under the joint action of pressure and electromagnetic ultrasonic vibration The brazing material is spread and wetted on the surface of the quartz glass, cooled to room temperature, and the brazing of the quartz glass is completed. The invention solves the problems of difficult low-temperature connection and large residual stress of high-temperature joints in the existing quartz glass connection method.

Description

Technical field: [0001] The invention relates to a welding method of quartz glass, in particular to a non-contact ultrasonic brazing connection method for preparing a quartz glass joint. Background technique: [0002] The high temperature resistance of quartz glass far exceeds that of any other kind of glass. Its melting temperature is above 1715°C, and its working temperature can reach about 1000°C. High-temperature-resistant quartz glass is used in tungsten-halogen lamps, inner core discharge tubes of high-pressure gas discharge lamps, and high-power pulse xenon lamps, and needs to be connected and assembled with metals. When connecting quartz glass, it needs to be heated to a high temperature, but because the linear expansion coefficient of quartz glass and metal is very different, cracks are often formed on the quartz glass after welding. Studies have proved that introducing ultrasonic energy into the brazing process at low temperature can promote the spreading and wett...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/06B23K3/08
CPCB23K1/06B23K3/085
Inventor 马志鹏夏法锋于心泷张茗瑄夏杨嘉雯张旭昀
Owner NORTHEAST GASOLINEEUM UNIV
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