| 摘要 |
PURPOSE: A partial heating apparatus for forging a crankshaft of a middle engine is provided to minimize the amount of oxidation scales generated and the volume of a material reduced by heating only a specific portion of the material, not the rest portion, in a heating furnace. CONSTITUTION: A partial heating apparatus for forging a crankshaft of a middle engine comprises a heating furnace(10), upper insulating partitions, a carriage(30), and lower insulating partitions(40). The heating furnace comprises a burner(11) therein. The upper insulating partitions are provided on both sides in a heating area of the heating furnace. The carriage comprises a material support for placing and moving a material for forging a crankshaft to the heating furnace. The lower insulating partitions are provided at regular intervals in multiple spots of the carriage, corresponding to the upper insulating partitions provided in the heating furnace.
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