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目前的渗碳炉排气管结构,使用很不方便,调节帽和调节芯需频繁装卸,经常丢失,有时采用临时措施,但往往无法调整压力。又由于排气管口径小,很难满足渗碳过程不同排气量的要求。特别是排气阶段,为了在尽可能短的时间里把炉内的废气排出,保证零件表面不被氧化和避免附着灰黑,不得不延长排气时间,降低了生产率。为了解
The current structure of carburizing furnace exhaust pipe is very inconvenient to use. Adjustment caps and adjusting cores need frequent loading and unloading, frequent loss, and sometimes temporary measures, but often can not adjust the pressure. Due to the small exhaust pipe diameter, it is difficult to meet the requirements of different displacement of carburizing process. Especially in the exhaust stage, in order to discharge the exhaust gas in the furnace in the shortest possible time, the surface of the part is protected from being oxidized and grayish black is prevented from being attached, exhaust time has to be lengthened and the productivity reduced. To understand