High-strength corrosion resistance distribution box used for electric power

Abstract

The invention relates to a distribution box, which includes a box body, a box cover, and a fastening mechanism for movably connecting the box body and the box cover. The raw material components of the box body and the box cover are as follows, all in parts by weight: polyethylene resin 40-60 20-30 parts of phenolic resin, 2-10 parts of elastomer, 0.1-15 parts of graphene, 3-7 parts of silicon carbide, 1-10 parts of silane coupling agent, 12-15 parts of semi-reinforced furnace black, calcined 10-12 parts of pottery clay, 6-12 parts of surface-treated Kevlar chopped fibers, 5-7 parts of nanomolybdenum disulfide (MoS2), 0.5-3 parts of aluminum oxide, 3 parts of polydimethylsiloxane ‑5 parts, 0.5‑2.5 parts of flame retardant, 1‑3 parts of dispersant. In the preparation process of the distribution box body and the box cover of the present invention, the raw materials and the proportions, together with the processing technology, make the distribution box box and the box cover of the present invention have excellent flexibility, mechanical properties and corrosion resistance, and at the same time It has good thermal conductivity, improves the performance of the distribution box as a whole, is not easy to age, has sufficient rigidity, and has a long service life, reducing maintenance costs.

Description

Technical field [0001] The invention relates to a high-strength corrosion-resistant distribution box for electric power, which belongs to the technical field of electric equipment. Background technique [0002] The distribution box is a closed or semi-enclosed cabinet that combines switchgear, measuring instruments, protective electrical appliances and auxiliary equipment according to electrical wiring requirements. It usually includes a box body and a box door. The box body and the box door pass through a hinge. The shaft is connected to form a closed environment in the box, and electrical components are installed in the box to prevent moisture and protect internal instrument circuits. [0003] Most of the distribution boxes in the prior art are made of metal and painted on the exterior. Large-scale distribution boxes placed outdoors for a long time have poor corrosion resistance, cannot effectively resist environmental corrosion and are easy to age due to long-term rain and sunli...

AI Technical Summary

Problems solved by technology

The distribution box shell made of composite materials has the problem of insufficient flexibility and easy cracking under impact force

The plastic distribution box casing has the advantages of superior electrical insulation, light weight, and low cost. However, the current plastic distribution box casing has poor mechanical strength. It is prone to aging and cracking after being exposed to rain and sunlight for a long time. For repair, it is necessary to completely replace the enclosure of the distribution box, which increases the maintenance cost