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Method for Brazing Amorphous Alloy Using au-12ge Eutectic Solder

An amorphous alloy and brazing technology, which is applied in the field of material welding, can solve the problems of poor wettability of amorphous alloys, and achieve the effects of improving mechanical properties, avoiding adverse effects, and controlling temperature accurately

Inactive Publication Date: 2016-03-30
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the poor wettability of conventional solder to amorphous alloys in the prior art, the need for long-term wetting to achieve connection, and the need to enhance wettability by means of ultrasonic treatment, the present invention proposes a method using Au- Method for Brazing Amorphous Alloy with 12Ge Eutectic Solder

Method used

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  • Method for Brazing Amorphous Alloy Using au-12ge Eutectic Solder
  • Method for Brazing Amorphous Alloy Using au-12ge Eutectic Solder
  • Method for Brazing Amorphous Alloy Using au-12ge Eutectic Solder

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Embodiment 1

[0024] This embodiment is a method for brazing Zr-based amorphous alloy rods and red copper rods using Au-Ge eutectic solder, and the Zr-based amorphous alloy is a Zr-based amorphous alloy with a diameter of 8mm 41.2 Ti 13.8 Cu 12.5 Ni 10 be 22.5 The amorphous alloy rod, the Au-Ge eutectic solder is eutectic foil ribbon solder, the thickness of the eutectic foil ribbon solder is 80 μm; the diameter of the copper rod is 8mm.

[0025] The concrete process of this embodiment is:

[0026] Step 1, surface treatment: Zr 41.2 Ti 13.8 Cu 12.5 Ni 10 be 22.5 The surfaces to be connected of the amorphous alloy and the red copper are polished with 800# or 1000# SiC sandpaper, both of which are polished with 800# SiC sandpaper in this embodiment. Put the copper rod into 10% hydrochloric acid alcohol solution for pickling for 2 minutes to fully remove the oxide layer and passivation layer on the metal surface. Au-12Ge foil eutectic solder was polished with 1500# sandpaper to remov...

Embodiment 2

[0032] This embodiment is a method for brazing Zr-based amorphous alloy rods and red copper rods using Au-Ge eutectic solder, and the Zr-based amorphous alloy is a Zr-based amorphous alloy with a diameter of 8mm 41.2 Ti 13.8 Cu 12.5 Ni 10 be 22.5 The amorphous alloy rod, the Au-Ge eutectic solder is eutectic foil ribbon solder, the thickness of the eutectic foil ribbon solder is 80 μm; the diameter of the copper rod is 8mm.

[0033] The concrete process of this embodiment is:

[0034] Step 1, surface treatment: Zr 41.2 Ti 13.8 Cu 12.5 Ni 10 be 22.5 The surfaces to be connected of the amorphous alloy and the red copper are polished with 800# or 1000# SiC sandpaper, and both are polished with 1000# SiC sandpaper in this embodiment. Put the copper rod into 10% hydrochloric acid alcohol solution for pickling for 2 minutes to fully remove the oxide layer and passivation layer on the metal surface. The Au-12Ge foil eutectic solder was polished with 1500# sandpaper to remov...

Embodiment 3

[0040] This embodiment is a method for brazing a homogeneous Zr-based amorphous alloy using Au-Ge eutectic solder, and the Zr-based amorphous alloy is a Zr-based amorphous alloy with a diameter of 6mm. 41.2 Ti 13.8 Cu 12.5 Ni 10 be 22.5 The bar material, the Au-Ge eutectic solder is the eutectic foil ribbon solder, and the thickness of the eutectic foil ribbon solder is 80 μm.

[0041] The concrete process of this embodiment is:

[0042] Step 1, surface treatment: Zr 41.2 Ti 13.8 Cu 12.5 Ni 10 be 22.5 The surface of the amorphous alloy to be connected is polished with 800# or 1000# SiC sandpaper, and 800# SiC sandpaper is used for polishing in this embodiment. The Au-12Ge foil eutectic solder was polished with 1500# sandpaper to remove the surface oxide layer. Zr 41.2 Ti 13.8 Cu 12.5 Ni 10 be 22.5 Amorphous alloy and Au-12Ge eutectic solder were ultrasonically cleaned in acetone solution for 5 min after the surface treatment process to remove surface pollutants....

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Abstract

Disclosed is a method for brazing amorphous alloy through Au-12Ge (gold-12germanium) eutectic solder. Treatment is performed on the connecting surface of base metal to be brazed and brazing is performed between the amorphous alloy and between the amorphous alloy and brass and red copper through the Au-12Ge eutectic solder by the vacuum brazing method. The amorphous alloy is Zr (zirconium)-based or Ti (titanium)-based amorphous alloy. According to the method for brazing the amorphous alloy through the Au-12Ge eutectic solder, the brazing connection between the same Zr-based amorphous alloy, between the same Ti-based amorphous alloy, between the Zr-based amorphous alloy and the Ti-based amorphous alloy, between the Zr-based amorphous alloy and the red copper and between the Zr-based amorphous alloy and the brass is achieved, a brazing joint is free of hole and gap, the interface combination is good, meanwhile the amorphous alloy still maintains the amorphous state, and the brazing connecting joint which is high in quality can be obtained.

Description

technical field [0001] The invention belongs to the field of material welding, and in particular provides a method for brazing Zr-based or Ti-based amorphous alloys by using Au-Ge solder. Background technique [0002] Amorphous alloys have a special internal structure of long-range disorder and short-range order, and exhibit better mechanical, physical and chemical properties than traditional crystalline alloys, such as high strength, high hardness, high corrosion resistance and excellent magnetic properties. It shows great application potential in the fields of aerospace devices, precision machinery and micro-electro-mechanical systems. However, because amorphous alloys are limited by their own forming ability, it is difficult to prepare large-scale materials that meet engineering needs. Therefore, it is urgent to realize the connection of amorphous alloys at low temperature to expand its application range. Au-Ge eutectic alloy solder has good mechanical properties and hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/08B23K1/19
CPCB23K1/008B23K1/19B23K1/20B23K2103/08
Inventor 寇宏超李金山王军管恒唐斌胡锐张铁邦杨劼人薛祥义
Owner NORTHWESTERN POLYTECHNICAL UNIV
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