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Manufacturing method of composite amorphous solder ribbon

A production method and technology of brazing material, applied in welding equipment, manufacturing tools, welding media, etc., can solve the problems of being unable to make amorphous, unable to fill gaps, thin thickness, etc., and achieve low cost, reasonable and simple design, and high production efficiency. high effect

Active Publication Date: 2020-08-04
HANGZHOU HUAGUANG ADVANCED WELDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of the amorphous foil strip prepared by the conventional method is on the micron scale. When the strip is too thick, it cannot be made amorphous due to the impact of the quenching rate, so there are limitations in practical applications.
However, the thickness of micron-sized amorphous solder is too thin to fill wide gaps

Method used

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  • Manufacturing method of composite amorphous solder ribbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: as figure 1 As shown, the outlet of the nozzle 11 in the lower part of the melting furnace is flat mouth-shaped, the length L is 20 mm, and the width is 0.1 mm. A water-cooled copper roller 2 with a smooth surface is prepared and the outer surface is cleaned. The nozzle 11 is facing the horizontally placed water-cooled copper roller 2. And the distance H between the nozzle 11 and the water-cooled copper roller 2 is 1 mm. Put BAl92Si solder as raw material into the melting and casting furnace, and then the furnace body is sealed. One way is connected to the air pressure valve 61, the barometer 7, the protective gas cylinder 6 or the gas storage tank through the vent pipe 4, and the other way is connected to the vacuum sealing valve 51 and the vacuum pump 5. Vacuum through the vacuum sealing valve 51 and the vacuum pump 5 before the melting starts, and the brazing material is completely melted by induction heating. Under the protective atmosphere, apply a p...

Embodiment 2

[0018] Embodiment 2: as figure 1 As shown, the outlet of the nozzle 11 in the lower part of the melting furnace is flat mouth-shaped, the length L is 10 mm, and the width is 0.5 mm. Prepare a water-cooled copper roller 2 with a smooth surface and clean the outer surface. The nozzle 11 is facing the horizontally placed water-cooled copper roller 2 And the distance H between the nozzle 11 and the water-cooled copper roller 2 is 1 mm. Put BCu86SnPNi solder as raw material into the casting furnace, then the furnace body is sealed, and the protective gas cylinder 6 or gas storage tank is connected through the air pressure valve 61 and the air pressure gauge 7 . Open the air pressure valve 61 before the melting starts to feed inert gas protection, and completely melt the brazing filler metal by induction heating. Apply a pressure of 0.08-0.12 MPa to the solder melt, and as the molten liquid level in the furnace drops, increase the protective gas pressure to keep the pressure on the...

Embodiment 3

[0019] Embodiment 3: as figure 1 As shown, the outlet of the nozzle 11 in the lower part of the melting furnace is flat mouth-shaped, the length L is 20 mm, and the width is 1 mm. The water-cooled copper roller 2 with a smooth surface is prepared and the outer surface is cleaned. The distance H between the nozzle 11 and the water-cooled copper roller 2 is 1 mm. The BCo-1 brazing filler metal is put into the casting furnace as a raw material, and then the furnace body is sealed, and the protective gas cylinder 6 or gas storage tank is connected through the air pressure valve 61 and the air pressure gauge 7 . Open the air pressure valve 61 before the melting starts to feed inert gas protection, and completely melt the brazing filler metal by induction heating. Apply a pressure of 0.08-0.12 MPa to the solder melt, and as the molten liquid level in the furnace drops, increase the protective gas pressure to keep the pressure on the melt at nozzle 11 constant, and the melt is injec...

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Abstract

The invention relates to a method for manufacturing a composite amorphous brazing filler metal welding strip. The method for manufacturing the composite amorphous brazing filler metal welding strip comprises the steps that equipment is configured; the brazing filler metal is subjected to melting and constant pressure spraying, specifically, the brazing filler metal is put into a melting and constant pressure spraying integrated furnace, a furnace body is sealed, the brazing filler metal is connected with a protective air cylinder through a barometer, and vacuum pumping is carried out or inertgas is introduced for protection before melting begins, after the brazing filler metal is melted uniformly, 0.08MPa-0.12MPa gas pressure is applied to brazing filler metal melting liquid, so that themelting liquid is sprayed onto a water-cooled copper roller which rotates rapidly, and the rotating speed of the water-cooled copper roller is between 20-35m / s; and an amorphous brazing filler metal foil strip is subjected to collection and composition, specifically, the amorphous brazing filler metal foil strip is wound into a thick multi-layer amorphous brazing filler metal foil strip with the thickness of 2 mm-4 mm by a multi-stranded wire winding device, and the two ends of the multi-layer amorphous brazing filler metal foil strip are welded and fixed by using an electric resistance welding mode. The multi-layer amorphous brazing filler metal foil strip is subjected to low-temperature heating rolling or adhesive bonding to prepare the welding strip which meets the requirement. According to the method for manufacturing the composite amorphous brazing filler metal welding strip, the structure is reasonable, the preparation efficiency is high, and the cost is low.

Description

technical field [0001] The application relates to a method for making a composite amorphous solder ribbon. Background technique [0002] Compared with traditional crystalline metals or alloys, amorphous alloys have structural characteristics of long-range disorder and short-range order (or medium-range order). It is the existence of this unique structure that enables the amorphous to exhibit better excellent physical and chemical properties. Because there are no defects such as grain boundaries and stacking faults inside the amorphous alloy mechanism, it has excellent corrosion resistance, and there is no segregation and heterogeneous structure. From the perspective of thermodynamics, amorphous alloy is a metastable structure, its atomic structure presents a long-range disordered arrangement, and the order is strictly limited within the size range of a few atoms. will transform into a lower energy crystalline structure. These special properties of amorphous materials dete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40
CPCB23K35/40
Inventor 唐卫岗孙光飞徐昶石凯王煜陈融
Owner HANGZHOU HUAGUANG ADVANCED WELDING MATERIALS CO LTD