| 摘要 |
PROBLEM TO BE SOLVED: To provide a sleeve heating device related to an iron sleeve molded integrally with an aluminum engine block, and that can uniformly heat the sleeve in a short time, and that can eliminate the need of a heating furnace.SOLUTION: A sleeve heating device 3 comprises a straight line-shaped conductor 4 supplied with a high-frequency current. By loosely inserting the conductor 4 into a metal sleeve 1, an induction current is generated to heat the sleeve 1. |
