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

Method for processing Cu-Cr alloy contact, contact finger or contact seat part for high voltage switch

A high-voltage switch and processing method technology, applied in the processing of contact fingers or contact seat parts, and in the field of high-voltage switch Cu-Cr alloy contacts, can solve the problems of low product utilization, high energy consumption, and high cost, and achieve production The effect of low cost, high material utilization rate and excellent product performance

Active Publication Date: 2012-09-19
HENAN UNIV OF SCI & TECH
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current processing method has many procedures, high energy consumption, low product utilization rate and high cost

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

[0014] The processing method of the high-voltage switch Cu-Cr alloy contact part of the present embodiment comprises the following steps:

[0015] (1) Smelting steps: first add electrolytic copper plate to the cored induction furnace, and then immediately add charcoal, the charcoal covering thickness is about 100mm, heat and melt the electrolytic copper plate under the charcoal layer cover, and ensure the molten liquid during the process of heating and melting the electrolytic copper plate The surface is completely covered by charcoal, and the charcoal covering layer is used to isolate most of the air to realize the melting process of the electrolytic copper plate. The melting process is carried out in a micro-oxidizing atmosphere. The heating temperature is 1150 ° C, and the heating duration is 60 minutes. After the electrolytic copper plate is melted, the temperature is raised to 1500 ° C. And add pure chromium to continue smelting, stir once after adding pure chromium for 2 ...

Embodiment 2

[0020] The processing method of the high-voltage switch Cu-Cr alloy contact finger parts in this embodiment includes the following steps:

[0021] (1) Smelting steps: first add electrolytic copper plate to the cored induction furnace, and then immediately add charcoal, the charcoal covering thickness is about 120mm, heat and melt the electrolytic copper plate under the charcoal layer cover, and ensure the molten liquid during the process of heating and melting the electrolytic copper plate The surface is completely covered by charcoal, and the charcoal covering layer is used to isolate most of the air to realize the melting process of the electrolytic copper plate. The melting process is carried out in a micro-oxidizing atmosphere. The heating temperature is 1250 ° C, and the heating duration is 40 minutes. After the electrolytic copper plate is melted, the temperature is raised to 1350 ° C. And add the Cu-Cr master alloy to continue smelting, add the Cu-Cr master alloy and sti...

Embodiment 3

[0026] The processing method of the high-voltage switch Cu-Cr alloy contact seat parts in this embodiment includes the following steps:

[0027] (1) Melting steps: first add electrolytic copper plate to the cored induction furnace, then immediately add charcoal, the thickness of the charcoal covering is about 150mm, heat and melt the electrolytic copper plate under the charcoal layer cover, and ensure the molten liquid during the process of heating and melting the electrolytic copper plate The surface is completely covered by charcoal, and the charcoal covering layer is used to isolate most of the air to realize the melting process of the electrolytic copper plate. The melting process is carried out in a micro-oxidizing atmosphere. The heating temperature is 1200 ° C, and the heating duration is 60 minutes. After the electrolytic copper plate is melted, the temperature is raised to 1450 ° C. And add pure chromium to continue smelting, stir once after adding pure chromium for 3 ...

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
tensile strengthaaaaaaaaaa
hardnessaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of processing of Cu-Cr alloy parts for a high voltage switch and particularly discloses a method for processing a Cu-Cr alloy alloy contact, contact finger or contact seat part for the high voltage switch. The method for processing the Cu-Cr alloy alloy contact, contact finger or contact seat part for the high voltage switch comprises the following steps of: melting, i.e. heating and melting an electrolytic copper plate under the coverage of a charcoal layer and then adding pure chromium or Cu-Cr intermediate alloy to continuously melt to obtain melt; carrying out heat preservation, i.e. transferring the melt into a heat preservation furnace to carry out heat preservation storage and carrying out sufficient slagging-off; carrying out pouring extrusion, i.e. pouring the melt in the heat preservation furnace into a cavity of an extrusion die, then starting a press to ensure the press to move down and carrying out direct extrusion forming in a liquid state to obtain a blank; and obtaining the Cu-Cr alloy alloy contact, contact finger or contact seat part for the high voltage switch by machining. The processing method disclosed by the invention adopts a forming technology of carrying out solidification and crystallization under the pressure, and has short process flow, high material utilization rate, excellent product performance and low production cost.

Description

technical field [0001] The invention relates to the technical field of processing Cu-Cr alloy parts for high-voltage switches, in particular to a method for processing Cu-Cr alloy contacts, contact fingers or contact seat parts of high-voltage switches. Background technique [0002] Due to the advantages of high strength and hardness, good thermal conductivity and electrical conductivity, and strong corrosion resistance, Cu-Cr alloys are widely used in the preparation of products requiring high conductivity and high strength, such as resistance electrodes, contact materials, and integrated circuit lead frames. Especially in high-power vacuum high-voltage switches, Cu-Cr alloys show broad application prospects. [0003] In recent years, the state has invested a lot of money in the transformation of urban and rural power grids, and the demand for high-voltage switch products has increased significantly. While introducing technology, domestic high-voltage switch manufacturers h...

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): B23P15/00B22D18/02C22C9/00
Inventor 宋克兴张彦敏周延军郜建新国秀花刘亚民赵培峰贾淑果李红霞
Owner HENAN UNIV OF SCI & TECH