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 complex process, high connection temperature, and low joint quality, and achieve simple fixtures, energy saving, and easy brazing process Effect

Inactive Publication Date: 2015-03-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 1: (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 for ultrasonic cleaning for 8-15 minutes, then wash with absolute ethanol and deionized water respectively, dry it in a drying box and dry to obtain the surface-treated copper or copper alloy;

[0018] 2. Put the polished glass substrate into acetone for ultrasonic cleaning for 8 to 15 minutes, then clean it with absolute ethanol and deionized water respectively, and blow dry to obtain the cleaned glass substrate. The cleaned glass substrate is bombarded with ion beams. film for 3 to 5 minutes, and then use electron beams to vapor-deposit a Cr film with a thickness of 250-350 nm on the glass substrate, and then vapor-deposit a Cu film with a thickness of 700-900 nm to obtain a coated glass substrate;

[...

specific Embodiment approach 2

[0028] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the copper or copper alloy after grinding in step 1 is polished with silicon carbide water sandpaper, and the grinding process is to use 80# sandpaper, 240# silicon carbide water sandpaper, 400 #sandpaper, 600# sandpaper, 800# sandpaper, 1000# sandpaper in the order of sanding step by step. Other steps and parameters are the same as in the first embodiment.

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 in the first or second embodiment.

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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 connectors made of glass and metal have better mechanical strength, high temperature resistance and good sealing, which can meet the requirements of connectors in aerospace system engineering and strategic and tactical weapon system pyrotechnics. requirements of high precision and high reliability. Glass is an inorganic non-metallic material, mainly ionic bond and covalent bond structure, has very stable electron pairing and chemical stability, and is essentially different from metal, so there are great difficulties in the connection betwe...

Claims

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Application Information

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Patent Type & Authority Patents(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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