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Method for connecting glass with copper or copper alloy

A connection method and copper alloy technology, which is applied in the field of connection between glass and copper or copper alloy, can solve the problems of low joint quality, complicated process, high connection temperature, etc., and achieve the effects of simple fixture, energy saving, and easy brazing process

Inactive Publication Date: 2013-03-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for connecting glass to copper or copper alloy in order to solve the problems of complicated process, high connection temperature and low joint quality in the existing glass-to-metal connection method

Method used

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  • Method for connecting glass with copper or copper alloy

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specific Embodiment approach 1

[0016] Specific implementation mode one: (please refer to the attached figure 1 ) The connection method between glass and copper or copper alloy in this embodiment is implemented according to the following steps:

[0017] 1. Put the polished copper or copper alloy into acetone and ultrasonically clean it for 8 to 15 minutes, then wash it with absolute ethanol and deionized water respectively, dry it and put it in a drying oven to dry it to obtain the surface-treated copper or copper alloy;

[0018] 2. Put the polished glass substrate into acetone and ultrasonically clean it for 8 to 15 minutes, then wash it with absolute ethanol and deionized water respectively, and dry it to obtain the cleaned glass substrate. Use ion beam bombardment to clean the glass substrate. 3 to 5 minutes, and then on the glass substrate, a Cr film with a thickness of 250 to 350 nm is evaporated on the glass substrate, and then a Cu film with a thickness of 700 to 900 nm is evaporated to obtain a coat...

specific Embodiment approach 2

[0028] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the copper or copper alloy after step one is polished with silicon carbide water sandpaper, and the polishing process is to use 80# sandpaper successively, 240# silicon carbide water sandpaper, 400 #Sandpaper, 600# sandpaper, 800# sandpaper, 1000# sandpaper are polished step by step. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0029] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the glass substrate polished in step 2 is polished with #80 silicon carbide water sandpaper. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention relates to a method for connecting glass with copper or copper alloy, particularly a method for connecting glass with copper or copper alloy by soft soldering. The invention aims to solve the problems of complex technique, high connecting temperature and poor joint quality in the existing method for connecting glass with metal. The method comprises the following steps: 1. cleaning copper or copper alloy in acetone, cleaning with absolute ethanol and deionized water, carrying out blow-drying, and baking; 2. cleaning a sanded glass substrate in acetone, cleaning with absolute ethanol and deionized water, carrying out blow-drying, bombarding with an ion beam, coating a Cr film on the glass substrate by vaporization, and coating a Cu film by vaporization; 3. cleaning low-temperature solder in acetone, cleaning with absolute ethanol and deionized water, and carrying out blow-drying; 4. preparing a rosin zinc chloride-base soldering flux; 5. assembling a soldering workpiece by using a graphite plate; and 6. putting the soldering workpiece into a heating apparatus to carry out soldering. The invention has the advantages of lower connecting temperature, simple technique and better joint quality. The invention is applicable to soldering of glass and metal.

Description

technical field [0001] The invention relates to a soldering connection method for connecting glass and copper or copper alloy. Background technique [0002] The connection between glass and metal has been widely used in the assembly, sealing and packaging of sensors. Compared with silicon piezoelectric sensors, pressure sensors made of glass and metal can be used in harsh working environments. Compared with plastic sealed connectors, the connector made of glass and metal has better mechanical strength, high temperature resistance and good sealing performance, which meets the needs of connectors in aerospace system engineering and strategic and tactical weapon system pyrotechnics. high precision and high reliability requirements. Glass is an inorganic non-metallic material, mainly ionic bond and covalent bond structure, with very stable electron pairing and chemical stability, which is essentially different from metal, so there are great difficulties in the connection of gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/00
Inventor 李卓然徐晓龙刘睿华申忠科刘羽
Owner HARBIN INST OF TECH
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