A kind of mpp cable tube which is convenient for welding and installation

Abstract

The invention discloses an MPP cable pipe which is convenient for welding and installation, and belongs to the technical field of MPP pipes. High accuracy, a plurality of one-to-one corresponding placement cavities and welding cavities are set on the surrounding walls of the inner connecting tube and the welding tube, and a hot-melt expanding body is arranged in the placing cavity, and an external heating device is used to heat the butt joint of the tube body. , the hot-melt expansion body in the placement cavity expands and extends after being heated, and the hot-melt expansion body expands into the welding cavity. During the expansion movement of the hot-melt expansion body, the hollow elastic storage material is The hot-melted welded filler inside the cone is extruded to the outside of the placement cavity and the hollow elastic material storage cone, so that the hot-melted welded filler is wrapped around the hot-melt expansion body and the inner and outer sides of the hollow elastic material storage cone, and solidified and formed. Then, the layers of welding between the inner connecting pipe, the welding pipe and the outer connecting pipe are completed.

Description

technical field [0001] The invention relates to the technical field of MPP pipes, and more particularly, to an MPP cable pipe which is convenient for welding and installation. Background technique [0002] MPP cable pipe, also known as MPP power pipe and MPP power cable protection pipe, is made of modified polypropylene. With the continuous development of society and economy, the scale of buildings is increasing day by day, especially urban infrastructure construction, environmental protection facilities construction and residential construction are growing rapidly. The amount of ground pipe is increasing. Therefore, MPP cable pipes are mostly used to replace traditional hollow cement pipes. [0003] The MPP cable pipe uses multiple pipe bodies for seam connection. The pipe body and the pipe body are usually welded by a welding machine. The axes of the two pipes need to be aligned when hot-melting butt joints. At the same time, the end face cutting should be vertical and f...

AI Technical Summary

Problems solved by technology

[0003] The MPP cable pipe is connected by multiple pipe bodies. The pipe body and the pipe body are usually welded by welding machine. Difficult to control, and at the same time, the two end welds are easy to crack, which may easily lead to pipeline quality problems

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