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Novel alloy brazing filler metal and preparation method thereof

An alloy brazing filler metal, a new type of technology, used in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of dimensional change, low melting point, low creep strength, etc.

Pending Publication Date: 2021-03-02
湖南盛华源材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The brazing filler metal contains copper, nickel, manganese, silicon, and zinc alloy with low melting point, good fluidity, easy fusion welding, brazing and plastic processing, corrosion resistance in the atmosphere, and the residual waste is easy to recycle and remelt; but the creep strength Low, prone to dimensional changes caused by natural aging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015]The new alloy brazing filler metal includes the following components in mass percentage: Cu54%, Ni6.0%, Mn4.0%, Si0.15%, Zn balance.

Embodiment 2

[0017]The new alloy brazing filler metal includes the mass percentage of the following components: Cu56%, Ni8.0%, Mn6.0%, Si0.45%, and the balance of Zn.

Embodiment 3

[0019]The new alloy brazing filler metal includes the mass percentage of the following components: Cu55%, Ni7.0%, Mn5.0%, SiO.30%, Zn balance.

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PUM

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Abstract

The invention discloses novel alloy brazing filler metal. The novel alloy brazing filler metal comprises the following elements in percentage by mass: 54%-56% of Cu, 6.0%-8.0% of Ni, 4.0%-6.0% of Mn,0.15%-0.45% of Si and the balance Zn. The invention further provides a preparation method of the novel alloy brazing filler metal. The preparation method is characterized by comprising the following steps: proportioning the raw materials according to the formula ratio; adding the raw materials into a smelting furnace to be molten; performing casting to form a green body; performing hot rolling toform a strip; performing cold rolling; performing annealing; performing rolling again; performing annealing; performing shearing, stamping and ball milling according to the required specification; performing screening; performing packaging; and performing chemical analysis in the smelting furnace. The preparation method is easy to operate, manufacturing cost is low, and the prepared brazing fillermetal has extremely high corrosion resistance and plasticity.

Description

Technical field[0001]The invention belongs to the technical field of new materials, and particularly relates to a new alloy brazing filler metal and a preparation method thereof.Background technique[0002]When brazing, the weldment is connected by the molten solder after solidification. Therefore, the quality of the brazed joint depends to a large extent on the solder. In order to meet the process requirements and obtain high-quality brazing joints, the solder must have a suitable melting point, good wettability, diffusibility with the base material, and the solder must consider economy.[0003]The brazing filler metal contains copper, nickel, manganese, silicon, and zinc alloys with low melting point, good fluidity, easy welding, brazing and plastic processing, corrosion resistance in the atmosphere, and easy recycling and remelting of residual waste; but creep strength Low, easy to cause dimensional changes due to natural aging. Prepared by melting method, die-casting or pressure-pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/302B23K35/40
Inventor 谭文辉李有能梁细铁
Owner 湖南盛华源材料科技有限公司