Research on Technology to Solve the Quality Problem of Shape Steel Appearance Rust
In order to ensure that the straightening temperature of the section steel is not greater than 90 ℃,horizontal spray cooling method is adopted to force cooling.The water on the upper web causes oxidation reaction between the steel and water,resulting in serious corrosion of the product appearance.In this paper,a series of technical improvements such as increasing ultrafine cooling device,hot saw cutting ability and vertical cooling of cold bed are implemented to solve the appearance corrosion problem of steel.
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