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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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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies of the above-mentioned technical problems. The present invention proposes a flux-cored composite solder cake with a spiral skeleton for impact resistance and its preparation method, aiming at solving the problem of complicated brazing process and low production efficiency in the brazing process. , It is not easy to accurately control the amount of flux, and there are often problems with excessive or uneven flux addition

Method used

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  • Anti-impact flux-cored composite solder cake with spiral framework and preparation method thereof
  • Anti-impact flux-cored composite solder cake with spiral framework and preparation method thereof
  • Anti-impact flux-cored composite solder cake with spiral framework and preparation method thereof

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specific Embodiment approach

[0032] An impact-resistant flux-cored solder cake with a helical skeleton, the solder cake 6 is composed of narrow-band flux-cored solder 4 and narrow-band material 5 intertwined to form a plane double helix, and the narrow-band flux-cored solder 4 and narrow-band The gap between materials 5 ≤ ​​0.1 mm; if figure 1 and figure 2 As shown, the narrow-band flux-cored solder 4 includes a solder outer layer 1 and a flux core 2 filled in the solder outer layer 1, and the solder outer layer 1 includes 44 parts by weight. ~46 parts of Ag, 24~26 parts of Zn and 28~30 parts of Cu, and the strip-shaped solder made of Ag, Cu and Zn prepared according to the above ratio is rotated and rolled to have a spiral lap joint 3 The tubular structure, the flux core 2 includes a silver flux core, and the narrow band material 5 is a copper-nickel alloy.

[0033] Further, when the outer brazing material layer 1 is rolled, 0.01-0.025 parts of rare earth is added to Ag, Cu and Zn strip-shaped brazing...

Embodiment 1

[0048] An impact-resistant flux-cored composite solder cake with a spiral skeleton, the thickness of the solder-cored solder cake 6 is 0.1 mm, and the solder-cored solder cake 6 is composed of narrow-band flux-cored solder 4 and narrow-band material 5 intertwined to form a plane double helix shape, the gap between the narrow-band flux-cored solder 4 and the narrow-band material 5 is less than or equal to 0.1 mm; Drug core 2, the brazing material outer layer 1 includes 44 parts of Ag, 24 parts of Zn, and 28 parts of Cu in parts by weight, and is made of Ag, Cu, Zn and rare earth prepared according to the above ratio The ribbon-shaped brazing material is rotated and rolled into a tubular structure with a spiral lap joint 3, such as Figure 4 As shown, the cross-sections of the narrow-band flux core solder 4 and the narrow-band material 5 are both trapezoidal, the flux core 2 includes a silver flux core, and the narrow-band material 5 is a copper-nickel alloy.

[0049] Further, ...

Embodiment 2

[0057] An impact-resistant flux-cored composite solder cake with a spiral skeleton, the thickness of the solder-cored solder cake 6 is 2 mm, and the solder-cored solder cake 6 is composed of narrow-band flux-cored solder 4 and narrow-band material 5 intertwined to form a plane double helix shape, the gap between the narrow-band flux-cored solder 4 and the narrow-band material 5 is less than or equal to 0.1 mm; Drug core 2, the solder outer layer 1 includes 45 parts of Ag, 25 parts of Zn, 29 parts of Cu and 0.02 part of rare earth in parts by weight, and is made of Ag, Cu, Zn, the ribbon-shaped brazing filler material that rare earth is made rotates and rolls and is made into the tubular structure that has helical lap seam 3, as Figure 6 As shown, the cross-section of one end of the narrow-band flux-cored solder 4 and the narrow-band material 5 is a semicircular groove, and the cross-section of the other end is drum-shaped, and the flux flux core 2 includes a silver solder dr...

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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.

Description

technical field [0001] The invention relates to the field of brazing materials, in particular to an impact-resistant flux-core composite solder cake with a spiral skeleton and a preparation method thereof. Background technique [0002] Cemented carbide is a composite material made of high hardness refractory metal compounds (such as WC, TiC, TaC, NbC, VC and TiN, etc.) and bonding metals (Co, Ni, Mo, Fe, etc.) through powder metallurgy process , with extremely high hardness, wear resistance and thermohardness, is a very important wear-resistant material in modern industry. Cemented carbide is widely used in metal cutting tools, mining, coal mining picks, mining rock drilling, oil drilling, geological exploration tools, deep drawing, extrusion, stamping dies and other industries. Because cemented carbide is relatively expensive, its plasticity and impact toughness are poor, so most of the application form of cemented carbide is to use small pieces of cemented carbide as inse...

Claims

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Application Information

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IPC IPC(8): B23K35/02B23K35/40
CPCB23K35/0238B23K35/0277B23K35/40
Inventor 裴夤崟吕登峰钟素娟马佳李永程战李胜男
Owner ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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