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Carbon-aluminum-titanium-based electrical contact material and its preparation method and use

An electric contact material, carbon aluminum titanium technology, applied in the field of materials, can solve the problems of limited reserves of metal resources, restrictions on popularization and application, and large weight ratio of materials, etc., and achieve simple and feasible preparation process, excellent electrical conductivity, and good electrical conductivity Effect

Active Publication Date: 2016-06-01
山东产研中科高端化工产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For these two types of contact materials, the precious metal elements such as Cu, Ag, W etc. account for a large proportion of the material weight, so they are expensive, and the resource reserves of these metals are limited, which affects and limits their popularization and application and further development. Develop applications at scale
In addition, the proportion of metal contained in the existing contact material is too large, resulting in low hardness and poor wear resistance

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0019] The present invention also provides a preparation method of a carbon-aluminum-titanium-based electrical contact material, wherein Ti 3 AlC 2 After mixing with the binder, it is pressed and formed under a pressure of 10-20MPa, and then kept at 700-1500°C for 3-6 hours under vacuum conditions to obtain a carbon-aluminum-titanium-based electrical contact material.

[0020] Those skilled in the art can understand that in industrial production and under the vacuum conditions described in the present invention, it is not a complete vacuum, and there is a certain pressure, but the pressure is relatively small. The vacuum condition of the present invention is preferably 4 × 10 -3 ~5×10 -3 Absolute pressure in Pa.

[0021] The invention also provides the use of the carbon-aluminum-titanium-based electrical contact material in preparing electrical contacts.

[0022] The invention also provides an electric contact made of the carbon-aluminum-titanium-based electric contact mat...

Embodiment 1

[0024] Example 1 Preparation of carbon-aluminum-titanium-based electrical contact material of the present invention

[0025] Mix 8g of carbon-aluminum-titanium powder (300 mesh particle size) with 2g of Co powder, then press and form it under a pressure of 15MPa, take out the compact and put it into a vacuum sintering furnace for sintering, the vacuum condition is 4.5*10 -3 pa absolute pressure, sintering temperature of 1200°C, and heat preservation for 5 hours to obtain carbon aluminum titanium based electrical contact material. The properties of the prepared carbon-aluminum-titanium-based electrical contact materials were measured, and the results are shown in Table 1.

Embodiment 2

[0026] Example 2 Preparation of carbon-aluminum-titanium-based electrical contact material of the present invention

[0027] Mix 8g of carbon-aluminum-titanium powder (300 mesh particle size) with 2g of Al powder, then press and form it under a pressure of 15MPa, take out the compact and put it into a vacuum sintering furnace for sintering, the vacuum condition is 5*10 -3 Pa absolute pressure sintering temperature is 1000°C, heat preservation for 3 hours to obtain carbon aluminum titanium based electrical contact material. The properties of the prepared carbon-aluminum-titanium-based electrical contact materials were measured, and the results are shown in Table 1.

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Abstract

The invention discloses a carbon titanium aluminum-based electric contact material and a preparation method thereof, and belongs to the field of materials. The electric contact material is prepared from the following components in parts by weight: 80-99 parts of Ti3AlC and 1-20 parts of a binder, wherein the binder is at least one of Co, Al, Al-Co alloy, Cu-Al alloy and Co-Cu alloy. The electric contact material is prepared by the following processes: pressing and molding Ti3AlC2 and the binder under the pressure of 10-20MPa, and then carrying out heat preservation at 700-1500 DEG C under a vacuum condition for 3-6 hours. The carbon titanium aluminum-based electric contact material is simple in process, high in bonding strength of carbon titanium aluminum and metal in material, low in contact resistance, good in fusion welding resistance, strong in arc erosion resistance and applicable to large-scale popularization and application.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a carbon-aluminum-titanium-based electrical contact material and a preparation method and application thereof. Background technique [0002] At present, electrical contact materials can be roughly divided into the following categories: copper-based contact materials, noble metal-based contact materials, tungsten-based contact materials, etc. Among them, the most widely used and most representative ones are Cu-W alloy and Ag-based electrical contact materials. For these two types of contact materials, the precious metal elements such as Cu, Ag, W etc. account for a large proportion of the material weight, so they are expensive, and the resource reserves of these metals are limited, which affects and limits their popularization and application and further development. Develop applications at scale. In addition, the proportion of metal contained in the existing contact materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/06C22C1/04H01H1/021
Inventor 张雪峰庞立娟邓刚方民宪李会容杨洋李中林
Owner 山东产研中科高端化工产业技术研究院有限公司
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