Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of high entropy alloy solder

A high-entropy alloy and brazing alloy technology, applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems of low quality of welded joints, different physical and chemical properties, and achieve good mechanical properties, good wettability, The effect of lowering the melting point

Active Publication Date: 2021-10-19
HARBIN WELDING INST LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When dissimilar materials are welded, there will be a transition layer that is significantly different from the properties and structure of the base metal. This significant difference refers to the difference in physical and chemical properties, resulting in low weld joint quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0021] Embodiments of the present invention are described in detail below. A kind of preparation method of high-entropy alloy solder, described method step is:

[0022] ①. Material preparation: put Sn, Al, Ag, Cu, Ni and Mg pure metals or alloys containing two elements in ultrasonic cleaning equipment, clean with a solution of alcohol and acetone with a volume ratio of 3:1, then dry and use The electronic balance weighs the dried raw materials according to the mass percentage for later use;

[0023] ②Smelting: Put all the raw materials with good ratio in ① into the graphite crucible of the vacuum induction melting furnace in order of melting point from low to high, the element with the lowest melting point is placed at the bottom, and the element with the highest melting point is placed at the bottom. Above, the volume of the alloy liquid is not more than two-thirds and not less than one-third of the volume of the graphite crucible; close the vacuum furnace cover, and use a v...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
shear strengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a high-entropy alloy solder. The mass percentage of the chemical composition of the designed high-entropy alloy solder is: 20% to 25% of Sn, 20% to 25% of Al, 20% to 25% of Al Cu, 0% to 5% Ag, 20% to 25% Ni, 0% to 5% Mg; the solder used is in the shape of shavings, the solder shavings of the present invention have good wettability, and the brazed joint strength is higher High, using vacuum induction melting, turning processing and metal scrap crusher to prepare brazing filler metal chips, the preparation process is simple, the production cost is low, and brazing filler metals of different sizes can be produced in large quantities, and the stability of brazing filler metal quality can be guaranteed at the same time. It has broad prospects for industrial application.

Description

technical field [0001] The invention relates to a preparation method of high-entropy alloy solder. Background technique [0002] At present, brazing foil and brazing powder are generally used for brazing connection of superalloys. The manufacturing methods such as smelting, extrusion, drawing and gas atomization, etc., the production equipment is expensive, the method is complicated, the process quality is high, and it is difficult to meet the price Have a foothold in the market competition. High-entropy alloys (High-entropy alloys) are referred to as HEA. High-entropy alloys have a single solid solution structure, good structural stability, good corrosion resistance and high-temperature compression performance, and are generally body-centered cubic (BCC) or face-centered cubic (FCC). Single-phase or multi-phase structure. Common metal materials such as Al, Ni, and Cu have a face-centered cubic (FCC) structure, so they will be based on Al, Ni, and Cu, and some other elemen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40
CPCB23K35/40
Inventor 孙晓梅陈永生方乃文姜英龙杨昊泉马一鸣
Owner HARBIN WELDING INST LTD