公开(公告)号：US6024893A

公开(公告)日：2000-02-15

申请号：US104021

申请日：1998-06-24

申请人： Gary D. Keil ,  Sheryl A. Tipton ,  Philip A. Newman ,  Paul E. Hoernlein

发明人： Gary D. Keil ,  Sheryl A. Tipton ,  Philip A. Newman ,  Paul E. Hoernlein

IPC分类号： C23C8/30 ,  C21D1/76 ,  C23C8/24 ,  F27D19/00 ,  C01B3/04

CPC分类号： F27D19/00 ,  C23C8/24

摘要： Dissociated ammonia carrier gas used as a reference gas is obtained from an ammonia dissociator which also provides dissociated ammonia carrier gas to a nitriding furnace whereby the source of ammonia supply gas is the same. An oxygen probe is used to regulate the nitriding potential of a nitriding furnace and atmosphere for process control and high quality nitrided parts. The method further includes correlating the probe mV output signal to a nitriding potential and adjusting the ratio of ammonia supply gas to dissociated ammonia carrier gas at the inlet of the nitriding furnace.

摘要翻译： 用作参考气体的离解的氨载体气体是从氨解离器获得的，氨解离器还提供离解的氨载气到氮化炉，由此氨供气源是相同的。 氧气探头用于调节氮化炉的氮化电位和气氛，用于过程控制和高质量氮化部件。 该方法还包括将探针mV输出信号与氮化电位相关联并且调节氨氮供应气体与氮化炉入口处的解离氨载气的比率。