Spelter solder

A technology of brass solder and raw materials, applied in welding/cutting medium/material, welding equipment, welding medium, etc., can solve problems such as micro-cracks, and achieve the effect of improving fluidity, refining grains, and reducing melting point

Inactive Publication Date: 2017-05-24
ANHUI HUAZHONG WELDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a kind of brass solder, which can not only reduce the melting point of traditional brass solder, but also solve the problem of microcracks caused by adding Si

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of brass solder, calculated by weight percentage, comprising the following raw materials:

[0028] Copper 55%, tin 0.9%, bismuth 0.8%, silicon 0.09%, manganese 0.07%, and germanium 0.04%, the balance is zinc.

[0029] Preparation:

[0030] 1) Prepare a total of 5000 grams of each material according to the above formula;

[0031] 2) Put Si into an induction furnace and heat it to above 1500°C and melt it;

[0032] 3) Then cool down to 1100°C and add Cu;

[0033] 4) Add Zn and stir fully, while rapidly reducing the temperature of the molten metal to 960°C;

[0034] 5) After the molten metal is uniform, add Bi and Ge and stir fully;

[0035] 6) Add Sn and Mn and stir evenly, then cast;

[0036] 7) The brazing alloy is obtained by extruding and wire drawing according to the conventional brazing filler metal processing method.

Embodiment 2

[0038] A kind of brass solder, calculated by weight percentage, comprising the following raw materials:

[0039] Copper 58%, tin 0.5%, bismuth 0.3%, silicon 0.05%, manganese 0.03%, and germanium 0.02%, the balance is zinc.

[0040] The preparation method of the brass solder in this embodiment is consistent with the method described in embodiment 1, the only difference is that the weight percentage of each component of the brass solder is weighed according to the ratio in this embodiment.

Embodiment 3

[0042] A kind of brass solder, calculated by weight percentage, comprising the following raw materials:

[0043] Copper 52%, tin 1%, bismuth 1.2%, silicon 0.15%, manganese 0.08%, and germanium 0.06%, the balance is zinc.

[0044] The preparation method of the brass solder in this embodiment is consistent with the method described in embodiment 1, the only difference is that the weight percentage of each component of the brass solder is weighed according to the ratio in this embodiment.

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Abstract

The invention provides spelter solder. The spelter solder comprises, by weight percent, the flowing raw materials: 52%-58% of copper, 0.5%-1.1% of tin, 0.3%-1.2% of bismuth, 0.05%-0.15% of silicon, 0.03%-0.09% of manganese, 0.02%-0.06% of germanium and the balance zinc. The spelter solder can reduce the melting point of traditional spelter solder and solves the problem of microcracks caused by addition of Si.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to brass solder. Background technique [0002] The materials used in the hardware tool industry mainly include hard alloys, diamonds, and iron bodies. The workpieces of these materials are mostly brass-type solders when welding. Due to the high melting point of brass, it is not conducive to the welding of workpieces. Since the addition of silver can effectively reduce the melting point of the brass solder and effectively improve the brazing fluidity of the brass solder, in the prior art, most brazing filler metals of the brass matrix contain silver. The addition of silver can reduce the melting point of brass solder, and the most commonly used silver content in silver brass solder is 2%, 5%, 10%, 15%, 20%, 30%, 35%, 40%, 45%, 50%, etc., but because silver is a precious metal, its price is higher, so adding silver to the brass solder increases the cost of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/28
CPCB23K35/282
Inventor 曹立兵
Owner ANHUI HUAZHONG WELDING MATERIAL CO LTD
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