PROCESS FOR INCREASING THE RECRYSTALLIZATION TEMPERATURE OF ALUMINUM AND ITS ALLOYS

摘要

P THE INVENTION RELATES TO A METHOD FOR INCREASING THE RECRYSTALLIZATION TEMPERATURE OF ALUMINUM AND ITS ALLOYS, AND MINIMIZING THE SIZE OF GRAINS. / P P IT CONSISTS IN ADDING 5 TO 1000 URANIUM PPM AT THE TIME OF PREPARATION OF THE METAL. / P P THIS PROCESS IS APPLIED IN PARTICULAR TO THE PRODUCTION OF ALUMINUM-BASED SHEETS INTENDED FOR SUBJECT TO RELATIVELY HIGH TEMPERATURE HEATING, SUCH AS EXAMPLE, THAT WHICH ACCOMPANIES THE OPERATIONS OF ENAMELLING OR SOLDERING AND THIS, WITHOUT THIS TREATMENT MAY ALTER THE MECHANICAL PROPERTIES OF THE SAME SHEETS. / P