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Temperature compensation in heated solids
Author(s) -
Specht Eckehard,
Alt Rüdiger
Publication year - 1990
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199000405
Subject(s) - compensation (psychology) , adiabatic process , slab , spheres , mechanics , materials science , thermodynamics , engineering , physics , structural engineering , psychology , psychoanalysis , aerospace engineering
Workpieces, which are removed from the furnace in a hot state for further processing, require generally a temperature as uniform as possible. The actual heating time is following therefore by a compensation phase. Analytical equations for the compensating times in slabs, cylinders and spheres are derived for the ideal case of an adiabatic solid, which is often a good approximation in practice. In technical processes, the compensating time is only marginally dependent on the temperature distribution existing at the onset of the compensation period. The compensation process is the longest in the slab and the shortest in the sphere, and lasts longer the larger the penetration depth for the temperature charge in the solid is.