摘要
HP材料裂解炉管内层渗碳后,由顺磁性转变为铁磁性,测其磁性变化可确定其渗碳程度。采用特殊探头、双通道自动升降机构和微机处理,自动记录、打印测量结果,自动消除外表层氧化皮影响。
The paramagnetism of HP furnace tubes will transform into ferromagnetism after carburization. The degree of carburization can be determined according to the changes of magnetism. Equipped with a specific probe, double-channel elevator mechanisms and computer data acquisition system, the instrument has the functions of automatic elevating, recording and result printing. It can also automatically eliminate the effect of oxide skins.
出处
《无损检测》
1997年第5期128-129,139,共3页
Nondestructive Testing
