A New Processing Method for Insulating Cylinder

Abstract

The invention relates to a novel insulating cylinder processing method. A die can be processed by a 1-3 mm sheet, and the size of an inner cavity of the die is adjustable. Preimpregnating epoxy digital mirror device (DMD) rolling materials are in thickness of 0.2mm, and the width of the preimpregnating epoxy DMD rolling materials are the same with the height of the insulating cylinder. The preimpregnating epoxy DMD rolling materials is utilized to roll on a foil winder and a coiler to the requested thickness (coiling effects of foil winder is better). The tail end is fixed stably by double faced adhesive tapes, and then the die is carried into an oasthouse to solidify. The solidification temperature is 130 degrees - 140 degrees. The solidification time is 3 hours -4 hours. After the solidification is cooled, screws can be adjusted by shrinking and the die is demolded. When two ends are in rubdown, the die can be used. The novel insulating cylinder processing method provides an insulating cylinder which is beautiful in appearance, excellent in insulating performance, extremely high in strength, simple in manufacturing crafts, low in cost, short in production cycle, good in laboring conditions for middle-high voltage electricity electric equipment.

Description

technical field [0001] The invention relates to medium and high voltage transformers or reactors, in particular to a processing method for a novel insulating cylinder. Background technique [0002] In the prior art, for medium and high voltage transformers or reactors, in order to reduce the space distance between the coil and the iron core, between the inner coil and the outer coil, and strengthen the electrical strength of the insulation, generally between the coil and the iron core, the inner coil and the outer coil An insulating cylinder is installed between the coils. The insulating cylinder currently used is generally made of epoxy phenolic glass cloth by hot pressing and curing. The manufacturing process is relatively complicated, the working conditions are poor, and special equipment is required. Generally, transformer manufacturers do not produce by themselves, but purchase from professional manufacturers. However, outsourcing insulating cylinders has problems such...

AI Technical Summary

Problems solved by technology

The insulating cylinder currently used is generally made of epoxy phenolic glass cloth by hot pressing and curing. The manufacturing process is relatively complicated, the working conditions are poor, and special equipment is required.

Generally, transformer manufacturers do not produce by themselves, but purchase from professional manufacturers, while outsourcing insulating cylinders, there are problems such as long delivery cycle and high price.

Especially for non-circular or other non-standard insulating cylinders, the cycle is longer and the price is higher

This will have a greater impact on transformer manufacturers

Some transformer manufacturers also use their own insulation cylinders, but due to their complex process, high cost, unsightly appearance and poor insulation performance, they are not ideal.

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