Brazing flux suitable for brazing aluminium and steel

A technology of brazing flux and steel brazing, which is applied in the direction of welding medium, welding equipment, welding/welding/cutting items, etc., can solve the problems of complex formula, high price and high cost, and achieve the goal of simple preparation process, low price and low price Effect
CN105643144AActive Publication Date: 2016-06-08ZHEJIANG XINRUI WELDING MATERIAL
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ZHEJIANG XINRUI WELDING MATERIAL
Publication Date
2016-06-08

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Abstract

The invention relates to a brazing flux suitable for brazing aluminium and steel, and belongs to the field of non-metallic brazing materials. The brazing flux comprises the following components in percent by mass: 0.001-0.01 percent of rubidium fluoride, 11.0-45.0 percent of cesium fluoride, 0.01-2.0 percent of aluminium hydroxide, 0.01-5.0 percent of potassium fluoride, 0.01-0.04 percent of zinc fluoride, and the balance of aluminum fluoride. The brazing flux can meet the requirements of aluminium-steel brazing, aluminium-copper brazing and aluminium-aluminium brazing synchronously and is high in activity.
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Description

Technical field

[0001] The invention belongs to the field of brazing materials of non-metallic materials, and specifically relates to a cesium rubidium flux containing zinc fluoride capable of brazing aluminum-steel, aluminum-copper and aluminum-aluminum. Background technique

[0002] With the rapid development of aerospace, automotive, rail transit, home appliances and other industries, aluminum-aluminum structures have been widely adopted. At the same time, there are more and more applications for composite structures of copper and aluminum alloys, steel and aluminum alloys, and aluminum-steel and aluminum-copper metal composite structures have been widely used in automobiles, home appliances and other fields. However, so far, there are still many unsolved problems in the welding of aluminum-steel and aluminum-copper metal composite materials.

[0003] The applicant conducted a literature search. Among the published Chinese patent documents, such as "A new type of flux for brazi...

Claims

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