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Tellurium-copper alloy for electric vehicle charging pile connector and production process thereof

A technology for electric vehicles and charging piles, applied in the field of non-ferrous metal materials, can solve the problems of inapplicable mechanical properties, difficulty in achieving application effects, and inability to improve the internal casting structure of materials, etc., and achieve the effect of excellent material properties and simple process preparation

Inactive Publication Date: 2018-08-03
中山市诺乐盟电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Chinese patent CN200810147883.3 provides a tellurium-copper alloy material for the electric power industry and its preparation method, but the horizontal continuous casting, sawing and other processes proposed in the invention cannot improve the casting structure inside the material, and the mechanical properties cannot be applied to electric power. Car charging pile connector
Chinese patent CN 200310110909.4 provides a copper alloy material with high thermal conductivity. The invention proposes a tellurium content of 0.1~0.2%, and the conductivity of the material reaches 102.4%IACS, which is basically the same as that of high-purity copper. It is difficult to achieve the expected application effect in practical applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) Upward continuous casting copper rod: high-purity cathode copper, copper-tellurium master alloy, copper-chromium master alloy, copper-cobalt master alloy, copper-indium master alloy, copper-yttrium master alloy, copper-antimony master alloy, copper-selenium master alloy Raw materials are smelted and continuously cast in the smelting device. The smelting device is covered with charcoal and graphite phosphorus sheets, and the copper rod is continuously cast by the traction unit; the content of tellurium is 0.18%, the content of chromium is 0.09%, and the content of cobalt is 0.09% %, indium content is 0.012%, yttrium content is 0.006%, antimony content is 0.006%, selenium content is 0.01%, oxygen content is 0.0002%, (copper + tellurium + chromium + cobalt + indium + yttrium + antimony + selenium) total content 99.995%.

[0021] 2) Perform homogenization annealing on the upper lead copper rod at an annealing temperature of 920°C and hold for 8 hours;

[0022] 3) Using ...

Embodiment 2

[0028] 1) Using high-purity cathode copper, copper-tellurium master alloy, copper-chromium master alloy, copper-cobalt master alloy, copper-indium master alloy, copper-yttrium master alloy, copper-antimony master alloy, copper-selenium master alloy as raw materials, smelting in the melting device , Casting, the melting temperature is 1250 ° C, the casting temperature is 1215 ° C, the melting device is covered with charcoal and graphite phosphorus sheets, and an ingot with a diameter of 200 mm is prepared; the content of tellurium is 0.18%, the content of chromium is 0.09%, and the content of cobalt is 0.09%. , indium content is 0.012%, yttrium content is 0.006%, antimony content is 0.006%, selenium content is 0.01%, oxygen content is 0.0002%, (copper + tellurium + chromium + cobalt + indium + yttrium + antimony + selenium) total content 99.995 %.

[0029] 2) Perform homogenization annealing on the cast ingot at an annealing temperature of 920°C for 8 hours;

[0030] 3) Hot ex...

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Abstract

The invention relates to tellurium copper alloy for an electric vehicle charging pile connector and a production technology of the tellurium copper alloy. Smelting and casting are conducted by using high-purity cathode copper, copper tellurium intermediate alloy, copper chromium intermediate alloy, copper cobalt intermediate alloy, copper indium intermediate alloy, copper yttrium intermediate alloy, copper antimony intermediate alloy and copper selenium intermediate alloy as raw materials, processing is conducted by the use of a continuous extrusion or hot extrusion method, and then the steps of solid solution treatment, cold rolling, ageing, drawing and the like are adopted, so that the tellurium copper alloy for the electric vehicle charging pile connector is prepared, wherein the tellurium copper alloy is high in strength and electrical conductivity.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal materials, in particular to a tellurium-copper alloy for an electric vehicle charging pile connector and a production process thereof. Background technique [0002] Charging pile connectors are the most important components that connect electric vehicles and power supply equipment during the charging process of electric vehicles. Tellurium-copper alloy has superior performance, has excellent electrical conductivity, thermal conductivity, wear resistance and high toughness, electrical corrosion resistance and chemical corrosion resistance, and has equivalent arc resistance performance of silver-copper alloy, and can be used in cold and hot Good processing performance, easy high-speed cutting. These excellent properties make tellurium-copper alloy extremely valuable in electric vehicle charging pile connectors. [0003] Chinese patent CN200810147883.3 provides a tellurium-copper alloy ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C1/03C22F1/08
CPCC22C1/03C22C9/00C22F1/08
Inventor 徐高磊
Owner 中山市诺乐盟电子有限公司
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