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

Preparation method for high-purity silver-copper alloy special-shaped wire

A technology of silver-copper alloy and high-purity copper, which is applied in the field of preparation of high-purity silver-copper alloy special-shaped wire, can solve the problems of high cost, uneven distribution of alloy structure, and long time, so as to prevent oxidation and impurities from entering and overcome Uneven structural composition and high work efficiency

Inactive Publication Date: 2020-07-14
紫金矿业集团黄金冶炼有限公司
View PDF19 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vacuum smelting and casting alloys are generally obtained by ordinary vacuum smelting and then filtering and removing impurities, and further continuous directional solidification, or it needs to be smelted multiple times step by step. The disadvantages are: cumbersome process steps and long time , high cost; and the nano-silver-copper alloy prepared by the electroless plating method is mainly aimed at nano-level alloys and used for nano-device electrodes. The alloy structure prepared by this chemical method is unevenly distributed, and the industrial production of alloy products is still difficult.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for high-purity silver-copper alloy special-shaped wire
  • Preparation method for high-purity silver-copper alloy special-shaped wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of a high-purity silver-copper alloy special-shaped wire material of the present invention uses high-purity silver and high-purity copper as raw materials, adopts high-vacuum secondary feeding melting and continuous casting to prepare high-purity silver-copper alloy special-shaped wire material containing 35% copper, and the operation steps are as follows:

[0036] (1) Material preparation and charging: after mass ratio of high-purity silver: high-purity copper = 1:0.54, put the high-purity silver into the crucible in the smelting furnace, and place the high-purity copper in the secondary furnace connected to the smelting furnace. in the material room;

[0037] (2) High vacuum: vacuumize the melting furnace and the secondary material chamber to 6.9×10 -2 Pa;

[0038] (3) High-purity silver smelting: turn on the smelting furnace and heat to 962°C to melt the silver, and keep it warm for 10 minutes;

[0039] (4) Secondary feeding smelting, stirrin...

Embodiment 2

[0045] The preparation method of a high-purity silver-copper alloy special-shaped wire material of the present invention uses high-purity silver and high-purity copper as raw materials, and adopts high-vacuum secondary feeding melting and continuous casting to prepare high-purity silver-copper alloy special-shaped wire material containing 45% copper. The operation steps are as follows:

[0046] (1) Material preparation and charging: after mass ratio of high-purity silver: high-purity copper = 1:0.82, put the high-purity silver into the crucible in the smelting furnace, and place the high-purity copper in the secondary furnace connected to the smelting furnace. in the material room;

[0047] (2) High vacuum: vacuumize the melting furnace and the secondary material chamber to 6.7×10 -2 Pa;

[0048] (3) High-purity silver smelting: open the smelting furnace and heat to 962°C to melt the silver, and keep it warm for 15 minutes;

[0049](4) Secondary feeding smelting, stirring an...

Embodiment 3

[0055] The preparation method of a high-purity silver-copper alloy special-shaped wire material of the present invention uses high-purity silver and high-purity copper as raw materials, and adopts high-vacuum secondary feeding melting and continuous casting to prepare high-purity silver-copper alloy special-shaped wire material containing 50% copper. The operation steps are as follows:

[0056] (1) Material preparation and charging: after mass ratio of high-purity silver: high-purity copper = 1:1, put the high-purity silver into the crucible in the smelting furnace, and put the high-purity copper in the secondary furnace connected to the smelting furnace. in the material room;

[0057] (2) High vacuum: vacuumize the melting furnace and the secondary material chamber to 6.7×10 -2 Pa;

[0058] (3) High-purity silver smelting: open the smelting furnace and heat to 962°C to melt the silver, and keep it warm for 20 minutes;

[0059] (4) Secondary feeding smelting, stirring and he...

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

No PUM Login to View More

Abstract

The invention discloses a preparation method for a high-purity silver-copper alloy special-shaped wire. The preparation method comprises the following steps that high-purity silver and high-purity copper are taken as raw materials, 6.5-6.9*10<-2> Pa high vacuum is adopted, firstly high-purity silver smelting is carried out, and then secondary feeding and high-purity copper smelting are carried out, so that the components are more uniform when alloy is formed; and then a mixture is intermittently drawn and casted into a silver-copper alloy bar continuous casting in a water-cooling crystallization mode, the continuous casting is subjected to annealing treatment and high-purity water ultrasonic surface clearing treatment, and then the annealed and cleared continuous casting is subjected to cold machining forming treatment to obtain the high-purity silver-copper alloy special-shaped wire with the given size and composition and the copper content of 35-50%. The preparation method has the characteristics of being simple and efficient in operation, low in production cost, high in product purity, uniform in structural composition and safe and environment-friendly in production.

Description

technical field [0001] The invention relates to a preparation method of non-ferrous alloy profiles, in particular to a preparation method of high-purity silver-copper alloy special-shaped wires. The alloy material is mainly used as an electrode material for manufacturing semiconductor chips. Background technique [0002] The preparation methods of the following silver-copper alloys were found from the website of the State Intellectual Property Office: [0003] 1. CN106521231 discloses a high-strength silver-copper alloy conductor and its preparation process: the method adopts a melting furnace to melt and filter refractory impurities to obtain a silver-copper alloy solution, and obtains a silver-copper alloy casting billet with a mirror-like surface by continuous directional solidification. Plastic processing and heat treatment are carried out below the recrystallization temperature to obtain a wire-shaped alloy conductor, and finally a wire-shaped silver-copper alloy conduc...

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 Applications(China)
IPC IPC(8): C22C5/08C22C9/00C22C1/02C22F1/14C22F1/08B22D11/00
CPCB22D11/001B22D11/004C22C1/02C22C5/08C22C9/00C22F1/08C22F1/14
Inventor 吴卫煌周方应宗波钟茂礼丁强罗鹏荷
Owner 紫金矿业集团黄金冶炼有限公司