A processing technology and device for self-adhesive enameled wire special for household motors

Abstract

The invention discloses a processing technology of a special self-adhesive enameled wire for a household motor and a device. The processing technology comprises the steps of softening a copper bare wire through an annealing oven to obtain a copper wire A; sensing the copper wire A into a drying furnace for drying to obtain a copper wire B; coating the surface of the copper wire B with primer, sending the copper wire B into a first enamelling furnace, and drying the copper wire B for the first time in different temperature environments through the first enamelling furnace to obtain an enameledwire C; coating the surface of the enameled wire C with finish paint, then sending the enameled wire C into a second enamelling furnace, and drying the enameled wire C for the second time in differenttemperature environments through the second enamelling furnace to obtain an enameled wire D; and winding the enameled wire D to obtain a finished enameled wire. The working stability and the bondingeffect of the self-adhesive paint after being coated can be effectively improved according to the invention.

Description

technical field [0001] The invention relates to a processing technology and a processing device of an enameled wire, in particular to a processing technology and a device of a self-adhesive enameled wire special for household motors. Background technique [0002] At present, the enameled wire needs to be impregnated after the winding is formed into a motor, and the space and air gap between the winding wires are filled by impregnation, so that the motor winding has good mechanical properties, chemical stability and service life. However, due to the unavoidable discharge of harmful gases such as styrene during the processing of the dipping process, the environmental protection effect is reduced. Therefore, with the development of technology, self-adhesive paint is used as the surface paint layer of the motor winding wire, because it can be bonded to each other in the working environment to produce a filling effect similar to the dipping process, thereby effectively avoiding t...

AI Technical Summary

Problems solved by technology

[0003] However, due to the fact that the paint layer on the surface of the enameled wire will cause residual solvents in the paint film or the paint film cannot be completely cured due to the high or low furnace temperature during the baking process, resulting in low adhesion stability and poor adhesion effect of the paint layer after coating Therefore, the self-adhesive paint cannot be completely bonded with the adjacent enameled wire under heating or solvent conditions, which reduces the improvement of the physical and chemical properties of the enameled wire compared to the traditional enameled wire after dipping

Moreover, the self-adhesive paint has high requirements on the external temperature environment during coating, while the traditional enamelling machine oven needs to continuously catalyze the airflow during the hot air circulation process, so as to remove the organic solvents and combustibles in the airflow; resulting in The temperature of the circulating airflow after catalytic combustion is too high to be controlled, and it needs to be filled with external air to achieve cooling, resulting in temperature deviation during the actual heating of the enameled wire oven, or fluctuations in the heating temperature, further reducing the adhesion to the self-adhesive paint effect, thus affecting the insulating and bonding effect of the self-adhesive paint after application

Therefore, the existing self-adhesive enameled wires for motors have the problems of low working stability and poor bonding effect

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