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氟化铵在粒状渗铬剂中用作活化剂,它可加快渗剂在钢铁零件表面的渗铬速度,而渗剂经多次渗铬处理后氟化铵的含量将不断发生改变,准确测定其含量的变化,对渗剂的研制、生产及渗铬机理的探讨很有必要。我们试验了用离子选择性电极对渗剂经多次处理后的氟含量进行了测定,研究了酸度,离子强度调节剂及干扰离子的影响。本方法 较通常采用的比色法简便,快速。
Ammonium fluoride is used as an activator in the granular chromizing agent to speed up the chromizing rate of the penetrating agent on the surface of the steel part. The content of the ammonium fluoride in the penetrating agent after repeated chromizing treatment will continuously change, and the accurate determination The content of its changes, on the penetration agent development, production and chromium penetration mechanism is necessary. We tested the ion-selective electrode penetration agent after repeated treatment of fluorine content was measured to study the acidity, ionic strength regulator and interference ions. This method is more commonly used colorimetric method is simple and fast.