Electrical conductor of aluminium
AssigneeAktiebolaget Elektrokoppar
InventorsAnders O. Sundin, Wolfgang A. Bronnvall
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Abstract
An electrical conductor with electrical conductivity of at least 59 percent of the standard conductivity for annealed copper is produced by adding to aluminium 0.001-0.10 percent by weight of beryllium, 0.05-0.35 percent by weight of copper and 0.01-0.20 percent by weight of magnesium, the total amount of beryllium, copper and magnesium being at the most 0.50 percent by weight, and forming the material into a wire or other conductor. The wire may then be heat treated. The conductor so obtained is resistant to increase in the contact resistance when exposed to heating or moisture. Pre-determined properties of the conductor can be attained under strongly varying heat treatment conditions.
Claims12
Electrical conductor consisting essentially of aluminium having an electrical conductivity when unannealed of at least 59% of the conductivity for annealed copper according to international standard (International Annealed Copper Standard, IACS), in which the conductor consists essentially of 0.001-0.10 percent by weight of beryllium, 0.05-0.35 percent by weight copper and 0.01-0.20 percent by weight magnesium, the total amount of beryllium, copper and magnesium being at the most 0.50 percent by weight, balance aluminium.
Dependencies are inferred from the claim text.