A kind of production method of bus duct bridge frame

Abstract

The invention relates to a production method of a bus duct bridge, which uses high-density polyethylene and medium-density polyethylene as a combined modified matrix, and is cross-linked and modified with a cross-linking agent under the action of an initiator, and then melt-grafted and polymerized with maleic anhydride Form a multi-grafted modified polymer, and blend and modify with surface-treated inorganic rigid particles. The inorganic rigid particles are one or more of nano-calcium oxide, glass microspheres, nano-silica, and nano-magnesium carbonate. It is extruded with processing aids through a twin-screw extruder, melted and pre-plasticized and extruded into a mold on a shaping table to be shaped, and circulating water is added to the outside of the mold to cool and shape in a vacuum, and then pulled by a tractor, cut into shape, and anti-corrosion. On the basis of static electricity, the brittleness, creep resistance, yield strength and processing performance of extruded busway bridges are improved, and the service life is longer.

Description

technical field [0001] The invention relates to a production method of a busway bridge, and belongs to the technical field of busway bridges. Background technique [0002] The inside of the busway bridge is composed of busbars such as copper and aluminum to form a busbar connection combination for high-voltage or low-voltage power transmission. It has increasingly replaced wires and cables, especially in the case of large current capacity, which makes the laying of the entire power system more convenient. , the cost is lower. The busway bridges in the prior art are generally made of steel strips or alloy materials through bending, angle grinding and other processing processes, which require riveting, welding, and on-site laying and installation, which not only has high processing costs and heavy overall weight, but also causes serious damage to manufacturing, transportation and construction. It is inconvenient, and the busway bridge made of steel or alloy has corrosion and ...

AI Technical Summary

Problems solved by technology

Busway bridges in the prior art are generally made of steel strips or alloy materials through bending, angle grinding and other processing techniques, which require riveting, welding, laying and installation on site, not only the processing cost is high, but the overall weight is heavy, and the manufacturing, transportation and construction are caused Inconvenient, and the steel or alloy busway bridge has corrosion and static electricity problems, the cost of replacement is high, and there are hidden dangers of electricity use.

[0003] In the prior art, the plates are generally treated and reprocessed by coating or spraying anti-corrosion coatings or electroplating, which not only has higher production costs, but also has a cumbersome process, which is not conducive to laying. The characteristics of good corrosion and insulation can significantly reduce costs and achieve anti-corrosion and anti-static effects. However, the existing plastic materials using low-density polyethylene resin have low tensile strength, poor pressure resistance and rigidity. The resin plastic of polyethylene has strong rigidity, but its creep resistance and processing performance are poor, and its brittleness is relatively large. The resin plastic of medium density polyethylene is in between, but its shrinkage rate is large and its yield strength is poor. Urgent improvement is needed for the production of busway bridges

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