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《Liugang Science and Technology》 2009-S1
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Causes Analysis on Cavity Occurred by Cold Rolling of 50 Strip

WANG Xiao-dong SHAO Lan HONG Jun FANG Bin (Ezhou Iron and Steel Company of WISCO)  
The serious defects of cavity occured on the cold rolling procedure of 50 hot-rolled narrow strip. The causes of cavity on 50 strip were researched by the observation and analysis of metallographic microscope,scanning electron microscope and spectrometer. The results showed that:cavity was caused by two causes of which bad control for inclusions during smelting procedure and scales cannot be cleaned up during cold rolling,and process lubrication and process cooling are bad.
【CateGory Index】: TG335.12
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