Brazing welding frame tool and sealing method

Abstract

The invention provides a brazing welding frame tool and a sealing method. The brazing welding frame tool comprises a horizontal base, a concentric column, a positioning adjusting assembly, a horizontal pressing disc, a pressing block and an adjusting die, wherein the concentric column and the adjusting die serve as centering dies of a workpiece, and fins of the workpiece can be fixed to the same straight line position through the adjusting die so as to facilitate the follow-up process. The horizontal base, the positioning adjusting assembly and the horizontal pressing disc can fix the workpiece in the vertical direction. The pressing block with a through hole can force the horizontal pressing disc to uniformly slide down under the action of gravity, so that a welding seam of the workpiece is sealed. Furthermore, due to the characteristics of self-lubrication, low expansion and moderate hardness of the graphite concentric column, a certain gap can be kept between the graphite concentric column and the workpiece in the high-temperature brazing and welding flux melting process, and due to the fact that the horizontal base, the positioning adjusting assembly and the horizontal pressing disc are made of materials with the same thermal expansion, the brazing welding frame tool does not clamp a film and is convenient to disassemble and assemble.

Description

technical field [0001] The invention belongs to the technical field of welding, and relates to a brazing mounting tool and a sealing method. Background technique [0002] Brazing refers to a welding method in which the solder below the melting point of the weldment and the weldment are heated to the melting temperature of the solder at the same time, and then the gaps in the solid workpiece are filled with liquid solder to connect the metals. Among them, the brazing deformation is small, which is suitable for welding precision, complex and components composed of different materials. [0003] Ion mobility spectrometer is currently the mainstream technology used in the field of chemical defense, anti-terrorism, explosion-proof, anti-drug and other fields for rapid on-site detection of trace substances. Compared with conventional transfer tubes, the integrated ceramic transfer tube has the characteristics of heat resistance, sealing, shock resistance and no release, which can ...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a brazing mounting tool and a sealing method, which are used to solve the problem of low workpiece quality and poor mounting tool quality during brazing in the prior art. The problem of difficult separation from the workpiece

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