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

A kind of method for improving the sputtering property of palladium silver copper

A technology of palladium-silver-copper and silver-copper alloy, which is applied in the field of improving palladium-silver-copper spattering property, can solve problems such as poor contact between welded parts, unqualified spattering property, and non-dense weld seam, so as to improve smelting method and heat treatment method, stable and excellent processing performance, and the effect of improving the compactness of the ingot

Active Publication Date: 2022-04-05
GRIKIN ADVANCED MATERIALS
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current prior art, palladium, silver, and copper are directly mixed and smelted, and the palladium-silver-copper alloy obtained by smelting has a large gas content and unqualified splashing property, which causes splashing when the solder melts in the vacuum brazing process. The welding seam is not dense, the air tightness is poor, and the contact between the weldments is poor, resulting in a short circuit of the device, resulting in the phenomenon of "burning tube", which seriously affects the reliability, stability and service life of the electric vacuum device

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

Embodiment 1

[0023] 65wt% silver, 30wt% copper, and 5wt% palladium will be accurately weighed, wherein silver and palladium are bulk materials that have been smelted once.

[0024] (1) First put silver and copper into the crucible of the vacuum melting furnace, and vacuumize to 6.5×10 -2 After Pa, power up and heat up, and the power is slowly delivered from low to high until it is completely melted and clear; after refining, it is cast, and samples are taken for analysis and testing, and the splashing performance is qualified;

[0025] (2) Place the silver-copper alloy in a vacuum induction melting furnace and add palladium, and vacuumize to 2×10 -2 Pa, start power supply; power on and melt: power on and heat up, the power is slowly delivered from low to high, until it is completely melted and clear; power off, keep it for 20 minutes, wait for solidification; power on again to heat up, until it is completely melted and cleared; warm up and cast ; After casting, wait for cooling to come ou...

Embodiment 2

[0027] 58wt% silver, 32wt% copper, and 10wt% palladium will be accurately weighed, wherein silver and palladium are bulk materials that have been smelted once.

[0028] (1) First put silver and copper into the crucible of the vacuum melting furnace, and evacuate to 6.9×10 -2 After Pa, power up and heat up, and the power is slowly delivered from low to high until it is completely melted and clear; after refining, it is cast, and samples are taken for analysis and testing, and the splashing performance is qualified;

[0029] (2) Place the silver-copper alloy in a vacuum induction melting furnace and add palladium, and vacuumize to 5×10 -2 Pa, start heating with electricity; turn on electricity to heat up, slowly transfer power from low to high, until it is completely melted and clear; power off, keep it for 18 minutes, and wait for solidification; send electricity to heat again, until it is completely melted and cleared; raise the temperature and cast; after casting Waiting for...

Embodiment 3

[0031] 65wt% silver, 20wt% copper, and 15wt% palladium will be accurately weighed, wherein silver and palladium are block materials that have been smelted once.

[0032] (1) First put silver and copper into the crucible of the vacuum smelting furnace, and evacuate to 6.8×10 -2 After Pa, power up and heat up, and the power is slowly delivered from low to high until it is completely melted and clear; after refining, it is cast, and samples are taken for analysis and testing, and the splashing performance is qualified;

[0033] (2) Place the silver-copper alloy in a vacuum induction melting furnace and add palladium, and vacuumize to 4.5×10 -2 Pa, start heating with electricity; turn on electricity to heat up, slowly transfer power from low to high, until it is completely melted and clear; power off, keep it for 18 minutes, and wait for solidification; send electricity to heat again, until it is completely melted and cleared; raise the temperature and cast; after casting Wait fo...

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
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for improving palladium-silver-copper spattering property and belongs to the technical field of brazing materials. The method comprises the following steps: (1) silver and copper are smelted, refined and casted to obtain a silver-copper alloy; (2) palladium is added to the silver-copper alloy obtained in step (1), and palladium is obtained through smelting, refining and casting Silver copper alloy. Through the special ingot melting and casting process, the invention reduces the gas content inside the ingot, has stable and excellent processing performance, and can mass-produce wires and strips whose performance meets requirements.

Description

technical field [0001] The invention belongs to the technical field of brazing materials, in particular to a method for improving palladium-silver-copper spattering properties. Background technique [0002] With the development and wide application of electric vacuum devices, their demand is increasing day by day. At the same time, the requirements for their technology and reliability are getting higher and higher, and the device structure is becoming more and more complex. Especially for high-power microwave electric vacuum devices, the pulse output power And the average output power indicators are several times higher than the previous level, so the welding process of the device involves large-area airtight welding of different materials such as oxygen-free copper and pure iron. The welding structure is not only complicated, but also requires multiple welding. The performance requirements for brazing materials are also different, and brazing materials are required to have ...

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): C22C1/03C22C5/08C22F1/02C22F1/14C21D9/52B23K35/30
CPCC22C1/03C22C5/08C22F1/002C22F1/14C21D9/52C21D9/525C22F1/02B23K35/3006
Inventor 罗瑶宋瑶王鹏侯智超贺昕关俊卿郑成义李勇军
Owner GRIKIN ADVANCED MATERIALS