Method of measuring the thickness of a slag layer on metal baths

Abstract

Abstract The invention relates to a method for measuring the thickness of a slag layer on metal baths in which a probe connected to an electrical circuit and whose front surface is electrically conductive is lowered with constant speed through the slag layer into the metal bath, the electrical conductivities of the slag and the bath, or their electrical resistances respectively, being recorded in dependence on the speed with which the probe is lowered. Thus, when e.g. melts are to be degassed by vacuum treatment by means of a degassing vessel immersing with a tube into the slag-covered bath and which is periodically lifted and lowered, it is no longer necessary to maintain a great safety distance between the upper dead point and the metal surface. It is advantageous to provide for the upper dead point close to the metal surface because thus the lift height is increased which in turn affords a more rapid throughput of the metal.

Inventors

• 👤 Adalbert Jungwirth

Bibliographic Details