Low-silver brazing filler metal for welding pure silver jewelry and preparation method of low-silver brazing filler metal

A technology of silver solder and jewelry, applied in welding equipment, welding/cutting media/materials, welding media, etc., can solve problems such as turbulence and air holes that are prone to occur

Pending Publication Date: 2022-05-13
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

[0005] The object of the present invention is to provide a low-silver solder for soldering pure silver jewelry, which is used to solve the problems of turbulent flow and pores in the current low-silver solder for soldering pure silver jewelry during the welding process

Method used

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  • Low-silver brazing filler metal for welding pure silver jewelry and preparation method of low-silver brazing filler metal

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Experimental program
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Effect test

Embodiment 1

[0047] The low-silver brazing filler metal of the present embodiment is made up of the following elements by mass percent: Ag 60%, Zn 10%, Sn 2%, Si 0.4%, Ge 0.4%, Ce 0.02%, balance is Cu.

Embodiment 2

[0049] The pure silver jewelry soldering of the present embodiment is made up of the following elements of mass percent: Ag 65%, Zn 12%, Sn 1%, Si 0.3%, Ge 0.5%, Pd 0.8%, Ni 0.8%, balance For Cu.

Embodiment 3

[0051] The pure silver jewelry soldering of the present embodiment is made up of the following elements of mass percent: Ag 70%, Zn 15%, Sn 4%, Si 0.5%, Ge 0.3%, Pt 0.5%, Ir 0.3%, Co 0.4 %, the balance is Cu.

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Abstract

The invention relates to low-silver brazing filler metal for welding pure silver jewelry and a preparation method of the low-silver brazing filler metal, and belongs to the technical field of silver jewelry welding materials. The low-silver brazing filler metal for pure silver jewelry welding is composed of the following elements of, by mass, 60%-70% of Ag, 6%-15% of Zn, 0.1%-4% of Sn, 0.2%-1.2% of Si, 0.2%-0.8% of Ge, 0.5%-2% of microelements and the balance Cu. The trace element is selected from one or any combination of Ni, Co, Ce, Au, Pt, Pd, Ir and Mo. The melting temperature of the low-silver brazing filler metal for welding the pure silver jewelry is 650-780 DEG C, the brazing temperature is 680-800 DEG C, and the low-silver brazing filler metal for welding the pure silver jewelry has the advantages that the welding temperature is low, the fluidity of brazing filler metal melt is good, and turbulent flow and air holes are not prone to occurring in the welding process, and is suitable for low-temperature repair welding and secondary welding of the pure silver jewelry.

Description

technical field [0001] The invention relates to a low-silver brazing filler metal for pure silver jewelry welding and a preparation method thereof, belonging to the technical field of silver jewelry welding materials. Background technique [0002] According to the national standard GB / T 11887-2012 "Regulations and Nomenclature on the Purity of Precious Metals in Jewelry", the minimum value of the silver purity of precious metals in jewelry reaches 990‰, which is pure silver. At present, most of the handicrafts and jewelry in my country are fine silver products. Pure silver has a beautiful color and is mostly used to make bracelets, craft ornaments and other products. As the product design becomes more and more complex, the production process is integrated, and multiple parts of the product need to be welded. Pure silver jewelry welding usually adopts brazing connection, brazing can ensure the appearance size of jewelry, the weld seam is full and smooth, and the appearance is...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3006B23K35/40
Inventor 钟素娟于奇马佳潘建军王路乙于新泉潘世师
Owner ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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