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High strength corrosion-resistant brazing copper alloy welding wire

A corrosion-resistant, high-strength technology, applied in the direction of welding medium, welding equipment, metal processing equipment, etc., can solve the problems of low brazing strength, fast work hardening, and long production cycle of silicon bronze alloy brazing filler metals, so as to reduce intermediate The effect of the number of annealing and pickling, reducing the rate of work hardening, and increasing the ability of plastic deformation

Inactive Publication Date: 2009-09-02
TIANJIN JINLONG WELDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the brazing strength of this silicon bronze alloy solder is not high, the corrosion resistance is poor, and the work hardening is fast, so repeated annealing and pickling are required in wire drawing production.
Long production cycle, high energy consumption, large loss and serious pollution have hindered the production and application of this solder alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: A high-strength corrosion-resistant brazing copper alloy wire, the chemical composition is Si 3.5%, Mn 1.2%, Ti 0.4%, Mg 0.7%, the total amount of impurities is less than 0.5%, and the balance is Cu.

[0012] 1. Industrial pure Cu (purity above 99.6%);

[0013] 2. Ingredients: Add Si 3.5%, Mn 1.2%, Ti 0.4%, Mg 0.7% to Cu;

[0014] 3. Alloys are melted in a power frequency electric furnace, covered with calcined charcoal, and horizontally continuous cast ￠12.0mm wire billets at 1200°C;

[0015] 4. Cold drawing → annealing → pickling → cold drawing to ￠1.0mm welding wire.

Embodiment 2

[0016] Embodiment 2: A high-strength corrosion-resistant brazing copper alloy wire, the chemical composition is Si 3.2%, Mn 1.2%, Ti 0.4%, Ce 0.08%, the total amount of impurities is less than 0.5%, and the balance is Cu.

[0017] 1. Industrial pure Cu (purity above 99.6%);

[0018] 2. Ingredients: Add Si 3.5%, Mn 1.2%, Ti 0.4%, Ce 0.08% to Cu;

[0019] 3. Alloys are melted in a power frequency electric furnace, covered with calcined charcoal, and horizontally continuous cast ￠12.0mm wire billets at 1200°C;

[0020] 4. Cold drawing → annealing → pickling → cold drawing to ￠1.0mm welding wire.

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Abstract

The invention relates to a welding material, in particular to a high strength corrosion-resistant brazing copper alloy welding wire which is characterized by comprising 2.8 percent to 4.0 percent of Si, 0.5 percent to 1.5 percent of Mn, and at least one or more elements of 0.2 percent to 1.0 percent of Mg, 0.1 percent to 0.8 percent of Ti and 0.01 percent to 0.1 percent of Ce, less than 0.5 percent of impurity and the balance of Cu. The high strength corrosion-resistant brazing copper alloy welding wire has the advantages that the welding strength and the corrosion resistance of the brazing alloy are improved, the plastic deformation capacity of the brazing alloy is increased, the work hardening rate is reduced, and the times of intermediate annealing and acid cleaning during the drawing process are reduced.

Description

technical field [0001] The invention relates to a welding material, in particular to a high-strength corrosion-resistant brazing copper alloy welding wire. Background technique [0002] At present, S211 (Cu+2.7~3.5%Si+1.0~1.5%Mn) silicon bronze alloy solder is mostly used for laser brazing of automobile body panels, MIG arc brazing and other welding wires, and the annual consumption at home and abroad exceeds 5,000 tons. However, the brazing strength of this silicon bronze alloy solder is not high, the corrosion resistance is poor, and the work hardening is fast, so repeated annealing and pickling are required in wire drawing production. The production cycle is long, the energy consumption is high, the loss is large, and the pollution is serious, so the production and application of the solder alloy have been hindered. Contents of the invention [0003] The purpose of the present invention is to solve the above problems, and provide a high-strength corrosion-resistant bra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40
Inventor 曹颜顺何广年
Owner TIANJIN JINLONG WELDING MATERIAL
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