Thermal treatment of brazed products for improved corrosion resi

Details Thermal treatment of brazed products for improved corrosion resi Thermal treatment of brazed products for improved corrosion resi

1986-03-18

1987-10-13

Dean, R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148437, 148438, 148439, 148440, C22F 104

Patent

active

046996745

ABSTRACT:
Corrosion resistance in a brazed aluminum product is improved by subjecting the product to a heat treatment at a temperature of 300.degree. F. to 800.degree. F. for at least about one hour, preferably preceded by cooling the product to a temperaure below the temperature ultimately selected for the treatment, and in any event below about 550.degree. F. The useful life of brazed products such as automotive radiators is increased several times as a result of this treatment.

REFERENCES:
patent: 4035201 (1977-07-01), Anderson et al.

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