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Non-contact ultrasonic brazing connection method for preparing quartz glass connector

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

Active Publication Date: 2020-06-02
NORTHEAST GASOLINEEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Non-contact ultrasonic brazing connection method for preparing quartz glass connector

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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 a quartz glass connector. The method comprises the steps that 1, a brazing filler metal foil sheet is processed until the width of the foil sheet is identical to that of quartz glass; 2, the surface of the brazing filler metal foil sheet is polished and cleaned through acetone, the portion between two to-be-welded surfaces of the quartz glass is filled with the brazing filler metal foil sheet, the temperature is increased to 100-400 DEG C at the speed of 1-5 DEG / min, then heat preservation is performed for 5-10 minutes, the quartz glass is placed in a static magnetic field in the vertical direction, the magnetic induction intensity of the static magnetic field is 1-12 T, a coil generates an alternating current magnetic field, the frequency of the alternating current magnetic field is 2-10 kHz, the pressure of 0.1-1 MPa is applied to the upper end of the quartz glass, brazing filler metal is spreadand moistened on the surface of the quartz glass under the combined action of the pressure and electromagnetic ultrasonic vibration, the quartz glass is cooled to the room temperature, and thus the quartz glass is brazed. The non-contact ultrasonic brazing connection method solves the problems that in an existing quartz glass connection method, low-temperature connection is difficultly performed,and the residual stress of the high-temperature connector is large.

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 Applications(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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