Copper based brazing alloy

A brazing alloy and alloy technology, applied in welding medium, welding equipment, metal processing equipment and other directions, can solve the problems of expensive silver brazing material and high production cost of circular saw blade, and achieve the effect of low price, obvious effect and cost reduction.

Inactive Publication Date: 2006-07-12
罗成林 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented inventor describes different types of alloys made from certain metals called Braze Alloys (BAs). These BAs are good at resistive or inductively heated brazings while being easy to use by ordinary consumers without causing harmful side effects such as health hazards associated therewith. They have been found effective even when combined with Silver Solar Cream® instead of Ag solder during these processes due to their higher melting point compared to other commonly available materials like Silver Solder. Additionally they don't include any dangerous components which could affect human safety if exposed over time. Overall, this new type of material provides environmental benefits and reduces costs compared to traditional methods.

Problems solved by technology

This patented technical problem addressed by this patents relates to finding an alternative material from which to use during joining various types of metal structures together without having too much extra effort compared to traditional methods like braze plugs made up mostly of pure gold (Au). Silver-based solidified compositions are commonly preferred due to their low cost but they still suffer from poor wetness/wetting characteristics and flow ability issues associated therewith. Therefore, developing a more efficient replacement solution would provide significant benefits over existing solutions while reducing the overall economic impacts involved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1 The making of several alloys of the present invention

[0059] (1) The following formula is adopted: Mn 20-28%, Zn 18-27%, Ni 0.3-1.5%, Al 0.1-0.6%, Si 0.1-0.5%, rare earth 0.01-0.2%, and the balance is Cu.

[0060] The above metals are added in proportion to smelting in a graphite furnace, cast into an ingot, and then hot processed into a wire billet or slab, and then cold processed into a finished wire or strip.

[0061] It has been determined that the melting temperature of the alloy is 820-830°C.

[0062] (2) Adopt the following formula: Mn 18-24%, Zn 18-22%, Ni 0.3-1.2%, Al 0.1-0.6%, Si 0.1-0.5%, Ag 2.5-6.0%, and the balance is Cu.

[0063] The preparation process is the same as in Example 1. It has been determined that the melting temperature of the alloy is 800-820°C.

[0064] (3) The following formula is adopted: Mn 20-27%, Zn 17-29%, Ni 0.1-0.6%, Al 0.2-0.8%, Li 0.05-0.3%, and the balance is Cu.

[0065] The preparation process is the same as i...

Embodiment 3

[0072] Embodiment 3 Test of some formulations of the alloy of the present invention

[0073] The following is the applicant's tests on alloys of various proportions during the research process. According to different formulations, the melting point is between 780-840°C, and the shear strength is 18Kg / mm 2 About, far higher than the 14Kg / mm required by the standard 2 of shear strength.

[0074] Alloy formula (weight percent)

[0075] 9

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PUM

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Abstract

The invention discloses a copper base soldering alloy, belonging to metal material area. Said soldering alloy utilizes copper as base material, which adds several or all ones of manganese, zinc, silver, nickel, silicon, tin, aluminum, lithium and rare earth. The welding property of inventive soldering alloy is similar with silver solder while its cost is one times less than common silver solder to reduce cost effectively.

Description

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Claims

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Application Information

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Owner 罗成林
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