Device and method for pre-coating metal solder on vacuum glass

Abstract

The invention relates to a device and a method for pre-coating metal solder on vacuum glass, the device for pre-coating the metal solder on the vacuum glass comprises an ultrasonic electric solderingiron and an adsorption motion platform, the ultrasonic electric soldering iron comprises an ultrasonic generator, an electric soldering iron head, a wire feeding device and a hot air gun, an energy converter of the ultrasonic generator is connected with the electric soldering iron head to drive the electric soldering iron head to generate radial vibration; the hot air gun is set near the solderingiron head, the wire feeding device conveys welding wires to the electric soldering iron head, and before the welding wires make contact with the electric soldering iron head, the hot air gun preheatsthe welding wires. The adsorption platform comprises a rack, and an adsorption plate is arranged on the rack; a moving assembly is further arranged on the rack; the metal solder is prefabricated intoa welding wire and conveyed to the electric soldering iron head through the wire feeding device; mechanical vibration generated by an the energy converter of the ultrasonic generator is used for driving the electric soldering iron head to generate radial vibration, and a the welding wire is molten under the heat effect of the electric soldering iron head and is combined with a metalized layer ofglass. And the solder thickness is controllable, and the packaging success rate of the vacuum glass is greatly improved.

Description

technical field [0001] The invention relates to the technical field of vacuum glass processing, in particular to a device and method for pre-coating metal solder on vacuum glass. Background technique [0002] Vacuum glass is a deep-processed glass product that forms a vacuum-tight layer between two pieces of flat glass placed in parallel to achieve heat and sound insulation. The vacuum sealing layer achieves airtightness by sealing its surroundings with specific materials, and a specific arrangement of support columns is set in the sealing layer to support the external atmospheric pressure to maintain the shape of the vacuum layer. [0003] The quality of hermetic sealing is directly related to the performance and life of vacuum glass. There are two kinds of sealing materials commonly used in vacuum glass: ① low-melting point glass powder; ② low-temperature metal solder. Under normal circumstances, metal solder cannot be reliably connected to glass, and a metallized layer n...

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Problems solved by technology

[0006] According to the product characteristics and actual production conditions of vacuum glass, the pre-coating of metal solder on the surface of the glass metallization layer mainly has the following requirements: ① Do not use flux materials, because the residual flux will pollute the packaging equipment and affect the final Product vacuum

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