Anti-impact flux-cored composite solder cake with spiral framework and preparation method thereof
A composite brazing material and impact-resistant technology, which is applied in the manufacture of tools, welding equipment, metal processing equipment, etc., can solve the problems of difficult to accurately control the amount of brazing flux, complicated brazing process, and excessive addition of brazing flux, etc., to achieve easy batch production The effects of chemical production, increased specific surface area, and reduced amount of flux
Pending Publication Date: 2018-05-18
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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Abstract
Provided are an anti-impact flux-cored composite solder cake with a spiral framework and a preparation method thereof. The solder cake comprises a narrow-band flux-cored solder and a narrow-band material. The narrow-band flux-cored solder comprises a solder outer layer and a soldering flux core filling the solder outer layer. The solder outer layer comprises, by weight, 44-46 parts of Ag, 24-26 parts of Zn and 28-30 parts of Cu, and a tubular structure with a spiral lap seam is formed by rotating and rolling a belt-like solder prepared through Ag, Cu and Zn in proportions. The soldering flux core comprises a silver soldering flux core. The narrow-band material is a Cu-Ni alloy. The narrow-band flux-cored solder and the narrow-band alloy are continuously wound together at intervals and clamped to each other to be in a disc shape, so that good rigidity and structural stability are achieved; in the soldering process, the Ag-Cu-Zn solder reacts with part of the Cu-Ni alloy to generate a Cu-Ni-Ag-Zn alloy, the soldering seam strength can be improved, a spiral Cu-Ni alloy isolating belt is reserved after welding, stress can be slowly released to a great extent, and the impact performanceof a hard alloy tool is greatly improved.
Application Domain
Welding/cutting media/materialsSoldering media
Technology Topic
Structural stabilityNarrow band +6
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PUM
Property | Measurement | Unit |
Thickness | 0.1 ~ 3.0 | m |
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