A method for determining the is - content of binder in inorganically bound foundry core sands as well as for their recycling, and devices for this purpose

摘要

The present invention relates to a method for determining the is - content of binder of a foundry core sand, comprising the steps of:- Providing of foundry core and of a mechanically pretreated casting core, wherein the foundry core and a binder and the binder in a known quantity ratio is mixed with a fluorescent substance,- Measuring the fluorescence activity was at least a part of the foundry core sand,- Determination of the is - content of binder by correlating the fluorescence activity was measured with the quantitative ratio between the fluorescent substance and the binding agent.The present invention also relates to a process for the reprocessing of a foundry core sand, as well as devices for carrying out the method.n="20"