Precautions for use of enameled wire

1. Precautions for storage should be packaged in a high-humidity warehouse, should not be exposed to direct sunlight, and should not be placed near acid, alkali and organic solvents.

2, general precautions Workplace should be dust-free, dry, room temperature is 5 ~ 30 ° C; the operator's clothing should be clean, hands should not be contaminated with oil and dust; should check all parts of the machine before use, if not Normally, repair, check the name, type and specifications of the enameled wire used.

3. Precautions for coil winding Check the size and shape of the metal or wood mold used, and do not have sharp corners and convex parts; when the enameled wire is released from the bobbin, it should be prevented from damaging the enameled wire due to chaotic lines and kinks; In the case of wire, the tension should be adjusted to avoid excessive elongation of the enameled wire. Hard objects such as metal should not touch the surface of the enameled wire. When the coil is wound at high speed by the automatic winding machine, the contact with the metal surface is more likely due to the large tension. Special attention should be paid; when it is necessary to use a hammer, it is forbidden to use a hammer made of wood or plastic.

4. Precautions during molding When the coil is molded, the enameled wire is subjected to mechanical stress such as bending, torsion, tension, impact, etc., so it is necessary to heat it after molding. However, if the heating temperature of the polyester enameled wire reaches 150 ° C or higher, it will be affected by thermal shock, so care must be taken.

5. Precautions after molding When the coil after molding is handled or otherwise treated, care should be taken not to deform the coil or damage the paint film. Therefore, the problem of the arrangement and placement of the coils should be considered. In addition, dust should be avoided during storage, especially metal powder and moisture.

6. Precautions for coil assembly When rubbing with a small piece of bamboo and tapping or bending with a wooden hammer, special attention should be paid to whether there are sharp corners or protruding parts on the core, and the paint film should be prevented from being damaged by friction at the exit of the slot. Acetal and heat-resistant enameled wire have good abrasion resistance, while polyester is 60% of acetal, polyurethane and oily enameled wire are poor. Considering these factors, the core should not have sharp corners or protruding parts, and the bad exit , should not cause excessive friction on the enameled wire.

7. Precautions for immersion treatment In order to improve the mechanical and electrical properties of the coil after forming, and to suppress the aging of the paint film under high temperature and high humidity conditions, the immersion treatment has a good effect. The choice of impregnating varnish should take into account that the impregnated enameled wire is not eroded. The conditions of the immersion treatment should be consistent with the characteristics of the enameled wire. It is even necessary to carefully consider the so-called compatibility problem.