Metal treatment – Compositions – Heat treating
Patent
1989-07-31
1990-11-13
Morris, Theodore
Metal treatment
Compositions
Heat treating
148 18, 148 28, C21D 156, C21D 160
Patent
active
049699598
ABSTRACT:
A method for enhancing the thermal quenching of a metal surface comprises treating the metal surface with a complex phosphate acid ester. The metal surface is simultaneously or subsequently treated with a thermal quenching fluid. The method is particularly adapted for use in thermal quenching of aluminum and aluminum alloy surfaces. The complex phosphate acid ester has the formula: ##STR1##
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Marr Joseph M.
Riddle Barry L.
McDonald Alan T.
Morris Theodore
Phipps Margery
Reynolds Metals Company
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