Insulating flame-retardant MPP power cable tube and preparation method thereof

Abstract

The invention discloses an insulating flame-retardant MPP power cable tube and a preparation method thereof. According to the insulating flame-retardant MPP power cable tube and the preparation method thereof, isotactic polypropylene is high in crystallinity, and the prepared insulating flame-retardant MPP power cable tube has the characteristics of high vicat softening point, high modulus and low-temperature brittleness by adding the isotactic polypropylene; by adding ultra-high molecular weight polyethylene, the wear resistance of the prepared insulating flame-retardant MPP cable tube is good, and according to GB / T 8802-2001 measurement, the Vicat softening point of the prepared insulating flame-retardant MPP cable tube is 160-168 DEG C; meanwhile, the invention discloses cutting equipment, the cutting equipment can convey multiple strands of cable tubes at the same time; meanwhile, limiting rollers are matched with conveying, then conveying of the cable tubes with different diameters can be met; and meanwhile, the situation that multiple strands of cable tubes are mutually wound during conveying is avoided.

Description

technical field [0001] The invention relates to the technical field of cable tube production, in particular to an insulating and flame-retardant MPP power cable tube and a preparation method thereof. Background technique [0002] MPP power pipes are divided into ordinary type and reinforced type, and reinforced type is divided into excavated pipe and non-excavated pipe. The so-called MPP non-excavated pipe is also called MPP jacking pipe, MPP pulling pipe, and MPP traction pipe. The insulation and heat resistance of the existing MPP cable tubes are not good. At the same time, the production of MPP cable tubes needs to be cut. The existing cutting equipment is inconvenient to cut multi-strand cables, even if the equipment for multi-strand cable cutting In the process of cutting and conveying, it is easy for multiple cable tubes to be entangled with each other. At the same time, the waste generated during the cutting of the cable tube will be adsorbed on the entire peripheral ...

AI Technical Summary

Problems solved by technology

The insulation and heat resistance of the existing MPP cable tubes are not good. At the same time, the production of MPP cable tubes needs to be cut. The existing cutting equipment is inconvenient to cut multi-strand cables, even if the equipment for multi-strand cable cutting In the process of cutting and conveying, it is easy for multiple strands of cable tubes to be entangled with each other. At the same time, the waste generated during the cutting of cable tubes will be adsorbed on the entire surface of the cable tube, and the surrounding surface of the cable needs to be cleaned in time.

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