| 摘要 |
The aim of the invention is to prevent a detrimental effect on the operation of electric smelting furnaces. To achieve this, a pressure cell ( 41 ), which continuously measures the clamping force, is allocated to the actuating cylinder ( 21 ) that is responsible for fixing the interchangeable electrode ( 31 ) into the electrode support arm ( 11 ), said pressure cell continuously transmitting the measured values to a measured value display that is located at a distance from the furnace. This obviates the need for the previous conventional method of checking the current clamping pressure by placing a clamping pressure gauge in the electrode holder, e.g. when the electrode is replaced, without running the risk of a breakdown caused by the detachment of the electrode, triggered by an uncontrolled drop in the clamping pressure.
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