Section-steel tape and manufacturing method

Abstract

The invention discloses a section steel belt, one side of which is a brush surface A with protruding laths on the back. The invention has more than three pit patterns (2) formed between at least two laths and the back side of the brush surface. The invention is characterized in that the pit patterns (2) are produced firstly by rolling into billets (3) and then being pulled and milled for at least once. The section steel belt of the invention is high in precision and lower in manufacturing cost.

Description

technical field [0001] The invention relates to a brush surface of a power supply rail. Background technique [0002] The power supply rail generally consists of a brush face of a wear-resistant metal (such as stainless steel) and a current-carrying matrix of a good conductive metal (such as aluminum alloy). [0003] For the power supply rail, the smoothness of the brush surface and the tight and firm combination with the current-carrying substrate are very important. This is related to the shape and machining accuracy of the brush surface. [0004] The shape of the brush face of the supply rail and the method of combining it with the current-carrying substrate have been disclosed in various embodiments. [0005] As described in Chinese patents ZL03262580.4, ZL200720036402.2 and Publication No. CN1970336A, the steel strip on the brush surface has a simple shape, and the middle part of the steel strip on the brush surface does not engage with the current-carrying substrate ...

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Problems solved by technology

[0005] As described in Chinese patents ZL03262580.4, ZL200720036402.2 and Publication No. CN1970336A, the steel strip on the brush surface has a simple shape, and the middle part of the steel strip on the brush surface does not engage with the current-carrying substrate so that the combination is not tight enough, especially after wear and tear. , the steel strip becomes thinner, the stress is released and deformed, and the electrical conductivity between the brush surface and the current-carrying substrate becomes poor, all of which will affect the life of the power supply rail

[0006] The shape of the brush surface steel strip described in ZL99811837.0 is more reasonable, but it is produced by extrusion process, the precision control is difficult and the production cost is high

[0007] The brush surface steel strip described in Publication No. CN101058299A has a more reasonable shape, but the traditional rolling and stretching process cannot achieve high-precision industrial production

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