Isolation gas channel formation mould for vacuum casting transformer coil and its prepn. method

Abstract

A mould for forming the isolating air channel of the windings in transformer by vacuum casting is made up of the arc section with sealed cavity through using conic internal arc wall plate, reverse-conic external arc wall plate and upper and lower ring plates to construct a hollow cylinder, temporarily installing the oblique side plates between said internal and external wall plates to form several hollow formworks, cutting and taking the internal and external arc wall plates and upper and lower ring plates of each hollow formwork, and riveting said ring plates and left and right oblique side plates onto said arc wall plate to form conic hollow formwork.

Description

technical field

[0001] The invention relates to a vacuum casting transformer coil isolation air passage forming mold and a preparation process thereof. Background technique

[0002] At present, the airway plates used at home and abroad can be divided into two categories, one is metal solid airway plates; the other is non-metallic solid airway plates. The metal solid airway plate is very heavy because it is solid, and it is very inconvenient to use; the non-metallic solid airway plate is made of imported high-quality POM raw materials, the material price is very expensive, and the production cost is very high. Contents of the invention

[0003] The purpose of the present invention is to provide a vacuum casting transformer coil isolation air duct forming mold and its preparation process. The preparation process is not only reasonable in design, low in manufacturing cost, but also the forming mold is easy to use.

[0004] The vacuum cast transformer coil isolation airway fo...

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