我厂生产的6130柴油机球墨铸铁曲轴毛坯在正火时使用RT-150-10台车式电阻炉,每炉装曲轴10根共重1870公斤。由于台车的传动在电炉的前部,而铸件在台车的中、后部,在进出炉时,由于台车重,因而主动轮打滑空转,磨损很快,相应的轨道部位磨出一个凹坑,进出炉很费事。为此,我们在原主动轴和中间轴φ45毫米毛面上加工出一段φ40毫来的光而并铁键 I produced 6130 diesel engine ductile iron crankshaft rough in the normalizing RT-150-10 trolley-type resistance furnace, each furnace with a total of 10 crankshaft weight 1870 kg. As the trolley drive in the front of the electric furnace, and castings in the trolley in the rear, when entering and leaving the furnace, due to the trolley weight, so the active wheel slip idling, wear quickly, the corresponding track parts of a concave grinding Pit, into the furnace is very troublesome. For this reason, we have processed a light of 40 millimeters on the original drive shaft and the intermediate shaft of 45 mm