Composite cable for field operations and preparation method thereof

Abstract

The invention relates to rubber for cables, and in particular discloses a composite cable for field operations and a preparation method thereof. By using the preparation method, the roller sticking phenomenon in a sealing sheath mixing (a first banburying and a second banburying) process can be obviously reduced, actual operation time is reduced, and the risk of raw material aging can be reduced on the basis of increasing preparation efficiency; and moreover, the obtained product has balanced performance such as low-temperature resistance, high strength and aging resistance, and the obtained composite cable sealing sheath material for field operations has the advantages of low-temperature resistance, high strength and aging resistance. An inner conductor, an insulating layer, a water blocking layer and a sheath are successively assembled from inside to outside to obtain the composite cable for field operations, and the composite cable has the advantages of low-temperature resistance, high strength and aging resistance. The preparation method has high operability, obvious effect and a very high promotion and application value.

Description

technical field [0001] The invention relates to cable rubber, in particular to a composite cable for field operations and a preparation method thereof. Background technique [0002] At present, with the development of science and technology, both industry and human daily life are developing in the direction of electrification, and the status of cables in the field of industry and power is gradually increasing. Cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, aluminum alloy cables and so on. The cable is usually a rope-like cable twisted by several or several groups of wires, and each group is twisted with at least two wires. Each group of wires is insulated from each other and is often twisted around a center. The entire outer surface is covered with a highly insulated The outer sheath is used to connect circuits, electrical applia...

AI Technical Summary

Problems solved by technology

[0006] However, due to the addition of a large amount of additives and fillers during the preparation process, the phenomenon of sticking rolls occurs during the preparation process, and the sticking rolls further lead to uneven mixing and uneven performance of rubber products. In addition, the preparation process requires multiple Cleaning the sticky rollers will lead to a long preparation time, and the prolongation of the mixing time will further cause the aging of the rubber raw materials, increasing the risk of the strength and performance of the prepared rubber products. On the other hand, the sticky rollers will lead to uneven mixing of raw materials, resulting in rubber Part of the product has better performance, but some performance cannot meet the requirements

However, if the amount of filler is reduced, although the sticking phenomenon will be reduced, the performance of the rubber will be reduced, which does not meet the requirements of the compound cable sealing sheath material for field operations. It has performance requirements such as anti-aging, high strength and low temperature resistance.