The enameled wire coming out of the oven has a high temperature, the paint film is very soft, and the strength is very small. If it is not cooled in time, the paint film of the guide wheel will be damaged, which will affect the quality of the enameled wire. When the line speed is relatively slow, as long as there is a certain length of cooling section, the enameled wire can be cooled naturally. When the line speed is fast, the natural cooling cannot meet the requirements and must be forced to cool, otherwise the line speed cannot be increased.
Forced air cooling is a widely used method. The wire is counter-currently cooled with a blower through ducts and coolers. Note that the air source must be purified before use, so as to avoid blowing impurities and dust to the surface of the enameled wire and sticking to the paint film, causing surface problems.
Although the water cooling effect is very good, it will affect the quality of the enameled wire, make the paint film contain water, and reduce the scratch resistance and solvent resistance of the paint film, so it is not suitable for use.