Process for the thermal treatment of aluminum alloy sheets

Details Process for the thermal treatment of aluminum alloy sheets Process for the thermal treatment of aluminum alloy sheets

1978-04-26

1980-04-01

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

148 115A, 148 127A, C22F 104

Patent

active

041960211

ABSTRACT:
The invention relates to a process for the thermal treatment of aluminum alloys containing zinc, magnesium and copper as main alloying elements, and the products manufactured by this process and having an average particle diameter of Al-Mg-Cr phase of between 800 A and 1000 A. This process involves carrying out a treatment at high temperature for a sufficiently short period to prevent coalescense into particles which are too large. This treatment is preferably carried out at the homogenization stage for thin products and at the final dissolution stage for thick products. The invention is applied, in particular, to the manufacture of thin or thick sheets for the aeronautical industry.

REFERENCES:
patent: 3445920 (1969-05-01), Esslinger et al.
patent: 3598577 (1971-08-01), Stonebrook
patent: 3791880 (1974-02-01), Hunsicker et al.
patent: 3988180 (1976-10-01), Bouvaist

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