| 摘要 |
An Al-Mn alloy which can be brazed and enamelled, has a high resistance to corrosion and in a completely recrystallized state has an ultimate tensile stress of at least 150 N/mm2; a process for producing such an Al-Mn alloy by forming a melt comprising 0.8 to 2 weight percent manganese, 1.40 to 3 weight percent silicon, 0.2 to 1 weight percent iron, 0 to 0.2 weight percent copper, 0 to 0.2 weight percent magnesium, balance aluminum and in a total up to 0.2 by weight inevitable impurities which are due to the manufacture, casting said melt to form an ingot, annealing said ingot to 400 DEG to 620 DEG C. for 2 to 20 hours, hot-rolling and cold-rolling said ingot to final dimensions of the semifinished product, and subsequently annealing the semifinished product at a temperature above 450 DEG C. |
