Swiss Aluminium Ltd.

Ronald G Hardy

Stanley Shapiro

Mathur Raghavan

Duncan G Block

Joseph Winter

William C Setzer

William E Mayo

The present invention utilizes the unique addition of yttrium to aluminum base alloys to either enhance the conductivity of such alloys when compared to commercial conductor grade material or provide equivalent conductivity when utilizing grades of aluminum containing higher normal impurity levels. Various processing procedures can be utilized for this material, depending upon the desired final properties.

Electrical conductivity of aluminum alloys through the addition of

The present invention utilizes the unique addition of mischmetal to aluminum base alloys to either enhance the conductivity of such alloys when compared to commercial conductor grade material or provide equivalent conductivity when utilizing grades of aluminum containing higher normal impurity levels. Various processing procedures can be utilized for this material, depending upon the desired final properties.

Improving the electrical conductivity of aluminum alloys through the

A process for making aluminum alloy conductor wire having an electrical conductivity of at least 60.0% IACS which involves processing an alloy containing from 0.04 to 1.0% by weight iron, from 0.02 to 0.2% by weight silicon, from 0.1 to 1.0% by weight copper, from 0.001 to 0.2% by weight boron, balance essentially aluminum and processing said alloy without a final redraw step into wire. The process preferably includes hot working from at least approximately 900.degree. F. without reheating to form the redraw rod. This hot working is performed in order to allow the wire produced from this process to meet the desired properties at the final gages, such properties including high electrical conductivity under rapid annealing conditions.

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Hixson, TN, United States of America

Ronald G Hardy