| 摘要 |
<p>The present invention relates to an apparatus for annealing coils that includes an annealing furnace accommodating the coils therein, and a hot air part which is installed inside the annealing furnace and blows gas toward a portion around which the coils are wound. The hot air part blows the gas to an air gap between metal plates constituting the coils so as to make the temperature between the center part and the surface part of the coils constant and uniform by using convection of the gas. Therefore, quality of the coils is increased.</p> |
