Method for producing Al-base alloy substrates for magnetic recor

Details Method for producing Al-base alloy substrates for magnetic recor Method for producing Al-base alloy substrates for magnetic recor

1981-01-28

1984-02-14

Dean, R.

Metal treatment

Compositions

Heat treating

148 115A, 148 315, C22F 104

Patent

active

044314612

ABSTRACT:
A method for producing Al-base alloy substrates for magnetic discs, which comprises continuously casting into a strip of a thickness of 4 to 15 mm a molten alloy composition containing alloy components consisting of 2-6% of Mg, less than 1% of Mn, less than 0.3% of Fe, less than 0.25% of Zn and less than 0.35% of Cr and a grain refiner comprising less than 0.08% of Ti and/or less than 0.01% of B, followed by rolling.

REFERENCES:
patent: 3359085 (1967-12-01), Anderson
patent: 4235646 (1980-11-01), Neufeld et al.
patent: 4284437 (1981-08-01), Baba et al.

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