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Low temperature brazing method of glass and steel

A brazing method and glass technology, used in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of strength reduction failure, easy aging of bonding, damage and cracks, etc., to reduce residual stress, good sealing, Easy to implement effects

Active Publication Date: 2016-07-13
山东高熵金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional connection methods are mainly mechanical connection and glue joint. The mechanical connection is prone to stress concentration, damage and cracks at the opening, slot or thread, and the sealing is not good. Environmental factors are easy to reduce the strength and fail. Moreover, the safety glass such as tempered glass used more and more in the construction and automobile industries must not be used at a temperature higher than 200-300 ° C.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The low-temperature brazing method of the glass of this example and steel is carried out according to the following steps:

[0019] 1. Preparation of Al on the surface of soda-calcium tempered glass with a size of 70×50×10 mm by atmospheric plasma spraying process 2 o 3 / Cu coating, where Al 2 o 3 The ceramic coating is the primer coating, and the thickness is controlled to be 100 μm, and the metal Cu coating is the working coating, and the thickness is controlled to be 30 μm.

[0020] 2. Grind the surface of the steel block with a size of 20×20×20mm to be welded layer by layer with 200#, 400# and 600# sandpaper, and then put the polished steel block and Sn-Ag eutectic solder foil with a thickness of 100μm Put the glass sample block prepared in step 1 into acetone and ultrasonically clean it for 10 minutes, then rinse it with absolute ethanol, and blow dry.

[0021] 3. Apply BS-850 brazing flux to the steel block and the glass sample block prepared in step 1 to be w...

Embodiment 2

[0024] The low-temperature brazing method of the glass of this example and steel is carried out according to the following steps:

[0025] 1. Preparation of Al on the surface of soda-calcium tempered glass with a size of 70×50×10 mm by atmospheric plasma spraying process 2 o 3 / Cu coating, where Al 2 o 3 The ceramic coating is the primer coating, and the thickness is controlled to be 100 μm, and the metal Cu coating is the working coating, and the thickness is controlled to be 120 μm.

[0026] 2. Grind the surface of the steel block with a size of 20×20×20mm to be welded layer by layer with 200#, 400# and 600# sandpaper, and then put the polished steel block and Sn-Ag eutectic solder foil with a thickness of 100μm Put the glass sample block prepared in step 1 into acetone and ultrasonically clean it for 10 minutes, then rinse it with absolute ethanol, and blow dry.

[0027] 3. Apply BS-850 brazing flux to the steel block and the glass sample block prepared in step 1 to be ...

Embodiment 3

[0030] The low-temperature brazing method of the glass of this example and steel is carried out according to the following steps:

[0031] 1. Preparation of Al on the surface of soda-calcium tempered glass with a size of 70×50×10 mm by atmospheric plasma spraying process 2 o 3 / Cu coating, where Al 2 o 3 The ceramic coating is the primer coating, and the thickness is controlled to be 50 μm, and the metal Cu coating is the working coating, and the thickness is controlled to be 30 μm.

[0032] 2. Grind the surface of the steel block with a size of 20×20×20mm to be welded layer by layer with 200#, 400# and 600# sandpaper, and then put the polished steel block and Sn-Ag eutectic solder foil with a thickness of 100μm Put the glass sample block prepared in step 1 into acetone and ultrasonically clean it for 10 minutes, then rinse it with absolute ethanol, and blow dry.

[0033] 3. Apply BS-850 brazing flux to the steel block and the glass sample block prepared in step 1 to be we...

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PUM

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Abstract

The invention relates to a low-temperature brazing method and belongs to the field of brazing connection of glass and metal. By the low-temperature brazing method, the problems of high jointing stress, ageing failure and poor sealing during connection by conventional connection methods are solved. The low-temperature brazing method includes steps of firstly, preparing a ceramic / metal coating on the surface of glass; secondly, polishing the surface of steel by sanding paper, cleaning glass sample pieces and brazing filler metal foil in acetone and drying; thirdly, sequentially stacking the steel, the brazing filler metal foil and the glass sample pieces after brazing flux is coated on the welding surface, heating and brazing the same in a furnace and finishing.

Description

technical field [0001] The invention belongs to the technical field of welding, and relates to a glass and metal brazing method for glass and metal, in particular to a low-temperature brazing method for glass and steel. Background technique [0002] As a traditional brittle material, glass has excellent transparency and refraction, high hardness, high compressive strength, and good chemical stability. Series special features. It is widely used in daily utensils, construction engineering, instrumentation, automobile, electromechanical, national defense, electronic industry and other fields. [0003] However, the disadvantages of glass materials such as low ductility and impact toughness, weak thermal shock resistance, poor processing performance, and frequent accidents increase the difficulty in manufacturing and processing, hindering its wide application in engineering structures. Therefore, in many occasions, glass materials usually need to form a composite structure with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/008B23K1/20B23K1/19
CPCB23K1/008B23K1/19B23K1/20B23K1/203B23K1/206
Inventor 李红滕海柱栗卓新李辉聂海杰
Owner 山东高熵金属科技有限公司
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