EQUIPMENT FOR THE CONTINUOUS CONTACTLESS CONTROL OF THE STRUCTURAL CONDITION OF A COLD-DRAWN BAND

Internal structure of a metal strip is monitored by applying cyclically varying magnetic flux to the strip and sensing the flux induced in the strip. Signals corresponding to the magnetic field intensity of the applied cyclically varying field and to the resulting induced flux indicate the loss of e...

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Bibliographische Detailangaben
1. Verfasser:	GFRERER, MANFRED
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	Internal structure of a metal strip is monitored by applying cyclically varying magnetic flux to the strip and sensing the flux induced in the strip. Signals corresponding to the magnetic field intensity of the applied cyclically varying field and to the resulting induced flux indicate the loss of energy due to the internal structure of the strip. Making a similar determination by similar monitoring apparatus following annealing of the strip allows the effect of the annealing to be determined. The signals from the two monitoring apparatus can be used to generate a comparison signal to control the operation of the annealing treatment apparatus.