Continuous Measurement of Inner Temperatures of Slab Travelling through Continuously Reheating Furnace

概要

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An experimental test for continuously measuring inner temperatures of a slab passing through a continuously reheating furnace was carried out to improve heating operations. A test slab was drilled two holes on its side and then charged into the furnace, together with two CA thermocouples (2.3mmφ) which were protected with porcelain insulators, threefold asbestos tapes and "Brick Coat", and were fixed in the two holes. The inner temperatures of the two holes were continuously recorded by an electronic potentiometer during the slab was heated by the furnace. As a result, it was confirmed that these couples can be useful for more than three hours even at the temperature exceeding 1200°C. Calibration proved that the E.M.F. of the couples were not changed after the above heating operation.
公益社団法人計測自動制御学会の論文