METHODS FOR RECOVERING REFRACTORY METAL FROM WHEEL GRINDING

摘要

A refractory metal recovery method includes applying a coolant to a wheel grinding operation at a total rate exceeding a total rate at which the coolant evaporates and distributing the coolant across an interface with the abrasive wheel sufficient to apply the coolant at local rates exceeding local rates at which the coolant evaporates. The method produces refractory metal swarf and decreases oxidation of the swarf compared to dry grinding, allowing collection of the swarf. The abrasive grit may have a size of from about 16 to about 24 mesh and the coolant may contain a nitrite.