Method for manufacturing winding wires

Abstract

The invention provides a method for manufacturing winding wires. The method comprises the following steps: (1) covering a first layer of mica tapes horizontally; (2) covering a second layer of mica tapes horizontally; (3) covering a third layer of mica tapes horizontally; (4) carrying out winding covering; and (5) sintering, cooling and rolling. The winding wires manufactured by the method are smooth in surface, high in mechanical strength, good in manufacturability, strong in overload capacity and good in wet-heat resisting property; compared with glass fibers, the abrasive resistance of the winding wires is improved remarkably; the tiny gaps are generated when lap taping does not exist and the winding wire are easy to penetrate when vacuum pressure is utilized to soak, thus motor insulation realizes non-gap insulation; and the winding wires are applied to manufacturing stator coils of 6kV and 10kV motors.

Description

technical field [0001] The invention belongs to the manufacturing technology of winding wires, and relates to a new practical manufacturing technology of winding wires. Background technique [0002] Winding wire is one of the most critical and important materials in motor manufacturing. It is used to manufacture motor coils to achieve electromagnetic energy conversion. The coil is called the heart of the motor by industry insiders, which shows its importance. The safety and reliability of the coil in the operation of the motor depends to a large extent on the quality of the winding wire used. At present, the winding wires include: enameled wire, glass fiber enamelled wire, mica wrapping wire, glass fiber wrapping mica wrapping winding wire, film wrapping wire, glass fiber wrapping film wrapping wire, etc. In these winding wires, in addition to enameled wire and glass wire enameled wire, the main insulation of mica winding wire series and film winding wire series, such as mi...

AI Technical Summary

Problems solved by technology

In these winding wires, in addition to enameled wire and glass wire enameled wire, the main insulation of mica winding wire series and film winding wire series, such as mica tape and film tape, are all according to figure 1 1 / 2 stack pack as shown or as figure 2 In the 2 / 3 stacking method shown, the insulation is uneven, and there is a small air gap in the stacking place, which is a weak point in the electrical insulation. At the same time, the insulation thickness is relatively thick, and it is difficult to soak through vacuum pressure impregnation. question

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