Continuous production method of linear synchronous motor long stator

Abstract

The continuous production method of long-stator of linear synchronous motor includes the following steps: 1. making electrical steel sheet whose surface is coated with adhesive into electrical steel sheet with specific cross-section form; 2. pressing several electrical steel sheets to form a laminated block; 3. making heat treatment to form iron core; 4. placing the long-stator iron core into mould, heating to 140-220 deg.C for 0.4-4 hr.; and 5. demoulding, making the long-stator iron core have good rigidity and strength, and forming a layer of epoxy layer on the surface of the long-stator iron core.

Description

Technical field: [0001] The invention relates to a manufacturing method of a long stator of a linear synchronous motor, in particular to a continuous manufacturing method of a long stator of a linear synchronous motor used in a magnetic levitation railway. Background technique: [0002] The long stator linear motor is the main load-carrying and driving component of the track system of the high-speed maglev train, which provides the levitation force and driving force for the maglev train. For the manufacturing technology of the long stator of the electromagnetic structure component in the prior art linear synchronous motor, please refer to the German patent DE41 15 936 A1 published on August 14, 1997. This patent proposes a manufacturing method of electromagnetic structural components, and the obtained product is in the form of magnetic poles on a maglev railway, or in the form of a long stator core of a long stator linear generator. [0003] The manufacturing method provide...

AI Technical Summary

Problems solved by technology

[0004] But this existing technical scheme adopts the form of two-piece mould, after the epoxy heating curing process, in order to be able to deviate from the mould, the long stator needs to shrink the hydraulic device, so that the epoxy in the softened state may fall In the cavity of the mold, directly cause epoxy deformation

At the same time, it is easy to cause damage to the epoxy during demoulding.

In addition, during the casting step, due to the addition of hardener and quartz powder to the epoxy resin, the viscosity of the epoxy casting material is very high, and the fluidity in the mold is poor; and due to the inevitable presence of gas during the casting process In the pouring melt, bubble-like defects will be formed on the surface of the long stator, resulting in a thinner epoxy layer locally and reducing its corrosion resistance

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