Gas brazing of thin-sheet galvanized steel with aluminum solders

Authors

DOI:

https://doi.org/10.20535/2521-1943.2021.5.2.245009

Keywords:

thin-sheet galvanized steel, aluminum solders, gas brazing, specific spreading area, wetting angle

Abstract

. In this work, the first stage of experimental research was carried out to estimate the main physicochemical processes that determine the qualitative characteristics of a brazed joint made of thin sheet galvanized steel during gas brazing with aluminum solder systems. In particular, an estimation was made of the ability of spreading and wetting of aluminum solders (AlSi5, AlSi12) on the surface of thin sheet galvanized steel ( DX56D + Z of 0.4 mm thick and zinc-coated layer of 4565 microns) at a step-by-step increase in the heating area of the base metal in the presence and absence of flux (Al-Flux 726). The aluminum alloys was heated “not directly,” but through the base metal to maximize the preservation of the anticorrosive zinc coating at the interface between the liquid solder and the base material.

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Published

2021-11-09

How to Cite

Polishchuk, V., Strelenko, N., & Kovalenko, V. (2021). Gas brazing of thin-sheet galvanized steel with aluminum solders . Mechanics and Advanced Technologies, 5(2), 242–248. https://doi.org/10.20535/2521-1943.2021.5.2.245009

Issue

Section

Up-to-date machines and the technologies of mechanical engineering