METHOD OF APPLICATION OF THE PAINT-AND-LACQUER COATING ON THE METALLIC STRIP Russian patent published in 2007 - IPC B05D1/28 B05D7/14 

FIELD: metallurgy industry; metal-rolling production; methods of application of the paint-and-lacquer coating on the metallic strips.

SUBSTANCE: the invention is pertaining to the metal rolling production and may be used in the sheet-rolling shops coating branches incorporating the aggregates of the polymeric coatings of the roll flat stock. The method of application of the paint-and-lacquer coating on the surface pf the metallic strip includes, at least, entrapment of the liquid paint-and-lacquer material by the catching roll rotating in the underpan with the enamel, transfer of the enamel layer from the catching roll onto the applying roll and the being stained surface of the strip, the continuous feeding of the liquid paint-and-lacquer material into the underpan. The distinctive feature of the method is the preliminary "settling", separation from the air bubbles, the foam bunches of the new fed batches of the paint-and-lacquer materials directly in the paint-and lacquer underpan without usage of the special containers. Entrapment of the new batch of the liquid paint-and-lacquer material by the catching roll is exercised from the special area of the liquid paint-and-lacquer material underpan - the entrapment area insulated from the foam infiltration in it. The liquid paint-and-lacquer material is fed into the entrapment area from the settling area with the subsequent its application on the surface of the applying roll and further - on the strip. The technical problem is being solved by the invention with the help of the mounted in the paint-and-lacquer material underpans of the special design baffles allowing to form on the surfaces of the catching and applying rolls and on the steel strips of the stable-continuous film of the liquid paint-and-lacquer material without the air bubbles, the bunches of the foam in its composition; to reduce the amount of the defected metal strips with the paint-and-lacquer coatings.

EFFECT: the invention allows to form on the surfaces of the catching and applying rolls and on the steel strips of the stable-continuous film of the liquid paint-and-lacquer material without the air bubbles, the bunches of the foam in its composition; to reduce the amount of the defected metal strips with the paint-and-lacquer coatings.

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