Novel corrosion-resistant steel-plastic faceplate for composite water tank and manufacturing method of faceplate

Abstract

The invention discloses a novel corrosion-resistant steel-plastic faceplate for a composite water tank and a manufacturing method of the faceplate. The manufacturing method includes following steps: cutting 304 stainless steel or a Q235 steel plate into a flat plate, and stamping the flat plate into a moulded plate in needed size through a gravity press; after the moulded plate is stamped well, and adopting a sand blasting process for sand blasting roughing of the surface of the moulded plate, wherein sand blasting thickness is 0.25-0.5 mm while sand blasting grade is Sa2.5; spraying food-grade PE plastic powder onto the surface of the moulded plate after sand blasting, placing the moulded plate in a high-temperature oven for roasting to enable the PE plastic powder to completely fit on the surface of the moulded plate so as to form a PE plastic layer on the surface of the moulded plate, wherein roasting temperature is 180-300 DEG C. The steel-plastic faceplate is manufactured by compositing food-grade PE plastic and the steel plate, so that a water source is effectively stopped from directly contacting with the steel plate, and effects of preventing corrosion and prolonging service life of the water tank are realized.

Description

technical field [0001] The invention relates to a novel corrosion-resistant steel-plastic panel for a composite water tank and a preparation method. Background technique [0002] At present, 304 stainless steel is mostly used in domestic domestic and fire-fighting water storage tanks. However, because the chloride ions in tap water are highly corrosive to 304 stainless steel, water leakage and corrosion will occur in less than 2 years of use. At the same time, the national industry And technical field also does not have the way that can solve chloride ion corrosion to water tank. Contents of the invention [0003] The object of the present invention is to provide a novel corrosion-resistant steel-plastic panel for a composite water tank and a preparation method for the defects in the prior art. [0004] In order to achieve the above object, the present invention adopts the following technical solution: a novel corrosion-resistant steel-plastic panel for composite water ta...

AI Technical Summary

Problems solved by technology

[0002] At present, 304 stainless steel is mostly used in domestic domestic and fire-fighting water storage tanks. However, because the chloride ions in tap water are highly corrosive to 304 stainless steel, water leakage and corrosion will occur in less than 2 years of use. At the same time, the national industry And technical field also does not have the way that can solve chloride ion corrosion to water tank

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