PROCESSES FOR COATING A METAL SUBSTRATE WITH AN ELECTRODEPOSITED COATING COMPOSITION AND DRYING THE SAME

A process for drying a liquid electrodeposited coating composition applied t o a metal substrate is provided. Infrared radiation and warm air are applied simultaneously to the electrodeposited coating composition for a period of a t least about 1 minute, the velocity of the air at the surface of the...

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Bibliographische Detailangaben
1. Verfasser:	EMCH, DONALDSON J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES METALLURGY PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for drying a liquid electrodeposited coating composition applied t o a metal substrate is provided. Infrared radiation and warm air are applied simultaneously to the electrodeposited coating composition for a period of a t least about 1 minute, the velocity of the air at the surface of the electrodeposited coating composition being less than about 4 meters per second. The temperature of the metal substrate is increased at a rate rangin g from about 0.25 ~C per second to about 2 ~C per second to achieve a peak met al temperature of the substrate ranging from about 35 ~C to about 140 ~C. Infrared radiation and hot air are applied simultaneously to the electrodeposited coating composition for a period of at least about 2 minute s, during which the temperature of the metal substrate is increased at a rate ranging from about 0.2 ~C per second to about 1.5 ~C per second to achieve a peak metal temperature ranging from about 160 ~C to about 215 ~C, such that a dried electrodeposited coating is formed upon the surface of the metal substrate.