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K9 glass and titanium metal diffusion welding connection method

A connection method, a technology of titanium metal, which is applied in the field of K9 glass and titanium metal diffusion welding connection, can solve the problems of low bonding strength, easy falling off service life, low strain point and softening point, etc.

Active Publication Date: 2022-05-10
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with titanium metal, the strain point and softening point of glass material are relatively low, so the effective connection between K9 glass and titanium metal is realized. However, the existing K9 glass and titanium metal have low bonding strength after low temperature connection, easy to fall off and short service life. And other issues

Method used

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  • K9 glass and titanium metal diffusion welding connection method
  • K9 glass and titanium metal diffusion welding connection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: (1) First use wire cutting equipment to cut a large titanium metal plate into a titanium metal sample of 20mm20mm, and prepare the same number of 10mm10mm K9 glass plates, (2) place the surface of the titanium metal sample on The texturing treatment is carried out on the vacuum electron beam welding machine, using the helical waveform, the scanning frequency is 400Hz, the accelerating voltage is 50KV, the beam current is 0.5mA, the accelerating voltage is 60KV, and the beam current is 0.75mA, twice on the surface of the titanium metal sample. Texturing to ensure that the scratches on the metal surface are clear and evenly visible; (3) Oxidize the surface of the titanium metal sample under vacuum conditions, the oxidation temperature is 600 ° C, and the holding time is 10 minutes; (4) The polished surface of the K9 glass plate Put the pretreated surface of the titanium metal sample into a vacuum brazing furnace, heat at 550°C for 1.0 hour at a heating rate of 5...

Embodiment 2

[0026]Example 2: (1) First, use a wire cutting device to cut a large titanium metal plate into a titanium metal sample of 20mm20mm, and prepare the same number of 10mm10mm K9 glass plates, (2) place the surface of the titanium metal sample on The texturing process is carried out on a vacuum electron beam welding machine, using a helical waveform, the scanning frequency is 400Hz, the accelerating voltage is: 60KV, the beam current is 0.75mA, the accelerating voltage is 70KV, the beam current is 1.0mA, the accelerating voltage is 80KV, and the beam current is 1.25mA to roughen the surface of the titanium metal sample three times to ensure that the scratches on the metal surface are clear and evenly visible; (3) Oxidize the surface of the titanium metal sample under vacuum conditions, the oxidation temperature is 600 ° C, and the holding time is 10 minutes; (4) Put the polished surface of the K9 glass plate and the pretreated surface of the titanium metal sample into a vacuum braz...

Embodiment 3

[0027] Example 3: (1) First use wire cutting equipment to cut a large titanium metal plate into a titanium metal sample of 20mm20mm, and prepare the same number of 10mm10mm K9 glass plates, (2) place the surface of the titanium metal sample on Texture treatment is carried out on vacuum electron beam welding machine, using helical waveform, scanning frequency is 400Hz, accelerating voltage is 50, beam current is 0.5mA, accelerating voltage is 70KV, beam current is 1.0mA, accelerating voltage is 80KV, beam current is 1.25mA The surface of the titanium metal sample is roughened three times to ensure that the scratches on the metal surface are clear and evenly visible; (3) The surface of the titanium metal sample is oxidized under vacuum conditions, the oxidation temperature is 700 ° C, and the holding time is 20 minutes; ( 4) Put the polished surface of the K9 glass plate and the pre-treated surface of the titanium metal sample into a vacuum brazing furnace. The heating rate is 5°...

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Abstract

The present invention relates to the technical field of connection methods between K9 glass and titanium metal, in particular to a method for connecting K9 glass and titanium metal by diffusion welding, which is characterized in that the steps of the connection method are as follows: (1): prepare materials, take titanium metal plates and then Cut the titanium metal sample by wire cutting, and then prepare the same number of K9 glass plates with an area smaller than the titanium metal sample; (2): firstly, treat the titanium metal surface, and place the glass to be connected on the electron beam scanning control instrument For texturing, the helical waveform is used, the scanning frequency is 400~550Hz, and different accelerating voltages and beam currents are used for texturing in turn; (3): high-temperature oxidation of the titanium metal surface under vacuum conditions; (4): The above-mentioned polished K9 glass is placed on the surface of the oxidized titanium metal and put into a vacuum brazing furnace for welding. It has the advantages of simple process, high bonding strength, not easy to fall off, and long service life.

Description

technical field [0001] The invention relates to the technical field of connection methods between K9 glass and titanium metal, in particular to a diffusion welding connection method between K9 glass and titanium metal, which has the advantages of simple process, high bonding strength, not easy to fall off and long service life. Background technique [0002] As we all know, titanium and titanium alloys have low density, high specific strength, good corrosion resistance and formability, and are widely used in aerospace, petrochemical and other fields. The welding of titanium and titanium alloys is one of the key manufacturing technologies in the processing of its parts. The biggest problem of melting and welding pure titanium in air is oxidation and compounds and intermetallic compounds caused by various pollutions. Therefore, inert gas must be used for protection during welding; in addition, high temperature and large heat capacity during fusion welding It will lead to coars...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C27/00
CPCC03C27/00
Inventor 王美荣杨海峰雷玉珍胡胜鹏时斌宋晓国冯吉才
Owner HARBIN INST OF TECH AT WEIHAI