Steel-aluminum composite conductor rail and manufacturing method thereof

Abstract

The invention relates to conductor rails for rail transit, in particular to a steel-aluminum composite conductor rail and a manufacturing method thereof. The steel-aluminum composite conductor rail comprises an aluminum base and is characterized in that a plate-shaped wear-resistant body is arranged at the upper end of the aluminum base, wear-resistant body clamp grooves are arranged in two sidesof the upper end of the aluminum base, the wear-resistant body comprises two single wear-resistant body parts, the section of each single wear-resistant body part is L-shaped, the lower end of each single wear-resistant body part bends inwardly to form a bent part, single wear-resistant body part teeth are evenly arranged at the edge of each bent part, a central-embedded-strip mounting groove is formed in the upper end of the aluminum base, a central embedded strip is arranged in the central-embedded-strip mounting groove, the two sides of the central embedded strip compresses against the lateral wall of the central-embedded-strip mounting groove, and the lower end of the central embedded strip is evenly provided with central-embedded-strip teeth. The steel-aluminum composite conductor rail is manufactured through insertion, rolling, welding, milling and cutting. The manufactured steel-aluminum composite conductor rail is tight and firm in bidirectional combination, high in overall dimensional precision, flexible and diversified in section shape and simple and efficient in manufacturing process.

Description

technical field [0001] The invention relates to a conductive rail for rail transit, in particular to a steel-aluminum composite conductive rail and a manufacturing method thereof. Background technique [0002] Existing steel-aluminum composite conductive rails mainly include C-shaped rails and I-shaped rails. Its main disadvantages are: [0003] C-rail [0004] The overall dimensional accuracy is poor, the flatness of the working surface is poor, and the joints between adjacent rail bodies are uneven after installation on the line, and impact and abnormal noise are easy to occur during operation; three dovetail grooves are used for rolling lamination between steel and aluminum , along the length direction is only restricted by the friction force after pressing, and the inconsistent length of steel and aluminum is prone to appear after repeated thermal expansion and contraction; due to process limitations, the fixed length is limited, generally no more than 15 meters, and t...

AI Technical Summary

Problems solved by technology

[0004] The overall dimensional accuracy is poor, the flatness of the working surface is poor, and the joints between adjacent rail bodies are uneven after installation on the line, and impact and abnormal noise are easy to occur during operation; three dovetail grooves are used for rolling lamination between steel and aluminum , along the length direction is only restricted by the friction force after pressing, and the inconsistent length of steel and aluminum is prone to appear after repeated thermal expansion and contraction; due to process limitations, the fixed length is limited, generally no more than 15 meters, and the cross-sectional shape is limited. Big;

[0005] The stainless steel wear-resistant body of the I-shaped rail is welded in the middle part after being snapped in on both sides of the aluminum substrate. Inconsistent lengths of steel and aluminum; due to process limitations, the length of cut-to-length is limited, generally no more than 15 meters, and the cross-sectional shape is limited

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