Method for producing heat-resisting oil-resisting cable sheath

Abstract

The invention discloses a method for producing a heat-resisting oil-resisting cable sheath, which belongs to the technical field of cable line, the method comprises the following steps: 1) preparing materials, taking the following raw materials by weight: 80-90 parts of a SG-1 type resin, 10-15 parts of a plasticizer, 4-6 parts of a compound stabilizer and 2-3 parts of an antioxidant, carrying out material preparing grinding, fully mixing, grinding until fineness is less than or equal to 80 [mu]m, and obtaining a main material after grinding; 2) adding 20-30 parts of a filler in the main material, uniformly stirring and regrinding until the fineness is less than or equal to 65 [mu]m, and obtaining the main material after regrinding; 3) controlling the temperature at 60-75 DEG C and kneading the regrinded main material for 5-10 minutes; 4) carrying out plastic extruding, wherein the temperature is controlled at 150-160 DEG C; and 5) carrying out plastication to obtain the finished product, wherein the temperature is controlled at 165-175 DEG C. The method can keep heat-resisting and oil-resisting performances of the cable sheath, heavy metal poisoning can be prevented when the cable sheath is heated due to no lead and cadmium in the formula,, and the cable sheath has the advantages of environment protection and durability.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a method for preparing a heat-resistant and oil-resistant cable sheath. Background technique [0002] Cable sheath is widely used in the cable manufacturing process. Its withstand voltage and insulation resistance are relatively high, but its dielectric constant and dielectric loss are relatively large. Generally, it is mainly used as insulation for low-voltage (≤1KV) and medium-high voltage (6~10KV) cables. layer. The heat resistance and oil resistance of the cable sheath prepared by traditional methods are difficult to have at the same time, especially when the cable sheath has heat resistance, the content of organic matter contained in the material is high, it is easy to expand and deform when exposed to hot oil, and it is easy to soften after long-term soaking. Rotten, oil resistance is difficult to guarantee. At the same time, the traditional method for preparin...

AI Technical Summary

Problems solved by technology

The heat resistance and oil resistance of the cable sheath prepared by traditional methods are difficult to have at the same time, especially when the cable sheath has heat resistance, the content of organic matter contained in the material is high, it is easy to expand and deform when exposed to hot oil, and it is easy to soften after long-term soaking. Rotten, oil resistance is difficult to guarantee

At the same time, the traditional cable skin preparation method is complex and not environmentally friendly, and the prepared cable skin is prone to odor when exposed to heat and oil.