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TiCr2-based electrical contact material as well as preparation method and application thereof

An electrical contact material and an electrical contact technology, applied in the material field, can solve the problems of high cost of contact materials, limited resource reserves, unfavorable popularization and application, etc., and achieve a simple and feasible preparation process, good wettability, and good electrical conductivity. Effect

Inactive Publication Date: 2012-02-15
PANZHIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since W, Ag, etc. are precious metals, the resource reserves are limited, and the use of such precious metals as raw materials makes the cost of contact materials too expensive, which is not conducive to popularization and application
In addition, the existing contact materials have poor wear resistance and are difficult to use on sliding contacts

Method used

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  • TiCr2-based electrical contact material as well as preparation method and application thereof
  • TiCr2-based electrical contact material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1 TiCr of the present invention 2 Preparation of base electrical contact material

[0034] 8g TiCr 2The powder (particle size: 200 mesh) was mixed with 2g Co, and then pressed on a 20MPa hydraulic press, and the compact was taken out and put into a vacuum sintering furnace for sintering, the sintering temperature was 1500°C, and the holding time was 6 hours to obtain TiCr 2 base electrical contact material. Determination of obtained TiCr 2 The properties of the base electrical contact materials are shown in Table 1.

Embodiment 2

[0035] Example 2 TiCr of the present invention 2 Preparation of base electrical contact material

[0036] 7g TiCr 2 The powder (300 mesh size) was mixed with 3g Cu, and then pressed on a 30MPa hydraulic press, and the compact was taken out and put into a vacuum sintering furnace for sintering at a temperature of 1400°C and a holding time of 4 hours to obtain TiCr 2 base electrical contact material. Determination of obtained TiCr 2 The properties of the base electrical contact materials are shown in Table 1.

Embodiment 3

[0037] Example 3 TiCr of the present invention 2 Preparation of base electrical contact material

[0038] 6g TiCr 2 The powder (particle size 400 mesh) was mixed with 4g Ni, then pressed on a 27MPa hydraulic press, and the compact was taken out and put into a vacuum sintering furnace for sintering at a temperature of 1500°C and a holding time of 3 hours to obtain TiCr 2 base electrical contact material. Determination of obtained TiCr 2 The properties of the base electrical contact materials are shown in Table 1.

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Abstract

The invention relates to a TiCr2-based electrical contact material as well as a preparation method and application thereof, belonging to the field of materials. The invention aims to provide a novel electrical contact material as well as a preparation method and application thereof. The electrical contact material provided by the invention is the TiCr2-based electrical contact material which is prepared from the following components in weight ratio: 80-99 parts of TiCr and 20-1 part of binder, wherein the binder is at least one selected from metal, alloy and carbon powder.

Description

technical field [0001] The present invention relates to TiCr 2 The base electric contact material and its preparation method and application belong to the field of materials. Background technique [0002] At present, electrical contact materials can be roughly divided into the following categories: silver-based contact materials, tungsten-based contact materials, copper-based contact materials, and noble metal-based weak current contact materials. Among them, the most representative contact materials are Cu-W alloy and Ag-based contact material (AgSnO 2 , AgCdO, Ag-W series, etc.) two categories. Since W, Ag, etc. are precious metals, the resource reserves are limited, and the use of such precious metals as raw materials makes the cost of contact materials too expensive, which is not conducive to popularization and application. In addition, the existing contact materials have poor wear resistance and are difficult to use on sliding contacts. [0003] Therefore, it has be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/06H01B13/00C22C29/00
Inventor 庞立娟方民宪邓刚张雪峰同艳维李会容李玉和刘松利
Owner PANZHIHUA UNIV