02-09-2016 дата публикации
Номер: KR1020160103924A
Принадлежит:
The present invention relates to a method for manufacturing a nonflammable galvanized steel sheet which is used in a state of being attached onto a sandwich panel, an insulation material, a fireproof panel, interior and exterior panels for construction, etc. According to the present invention, provided is the method for manufacturing a nonflammable galvanized steel sheet, the method comprising: an un-coiler step of unwinding a wound galvanized steel sheet; an accumulator step of connecting a transferred galvanized steel sheet in a stationary state; a degreasing step of washing surfaces of the galvanized steel sheet; a pretreatment step of chemically treating top and bottom surfaces of the galvanized steel sheet; a step of painting anticorrosive primer on the outer surface of the pretreated galvanized steel sheet; a primary drying step of drying the galvanized steel sheet at a temperature ranging from 180 to 320°C in an oven chamber; a painting step of painting color paint on the outer surface ...
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