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Anshan Steel Group successfully rolled silicon steel in large quantities for the first time

At 19:30 on March 21, Angang Group continuously rolled 24 rolls of more than 600 tons of silicon steel for the first time. This marks the production of high value-added products Bensteel Beying company to a new level.
Silicon steel products are high value-added products, widely used in air conditioning, refrigerators and other electrical appliances. At the beginning of this year, Bensteel expanded the efficiency channel of high value-added products, formulated the silicon steel product strategy, and required the mass production of silicon steel products as soon as possible.
Silicon steel production requires a temperature of more than 400 degrees Celsius, because silicon steel has soft texture, low strength characteristics, in the heating furnace prone to bending steel phenomenon. Under the condition of meeting the technological requirements, the slab heating temperature is reduced as much as possible in the process of production in Beiying Rolling Mill, and the bending and collapse of silicon steel are avoided by "equal height of the beam". The basis of hot rolling of silicon steel is laid by scientifically formulating the length of ruler billet. By keeping the roughing roll in the best rolling state, the shape accuracy of the hot rolling process is guaranteed to achieve the same plate difference demand after cold rolling. In view of the weak edge of silicon steel rolling process, it is easy to produce edge crack defects, Beiying rolling mill overcame the difficulty of no guide wheel before production, and replaced the ordinary liner with a wear-resistant liner to reduce the risk of edge crack in the finishing rolling and winding area of silicon steel. In addition, Beiying steel rolling mill put the finished steel coil in a single layer to further avoid the occurrence of abnormal coil shape.
Many quality indicators of the rolled silicon steel are good, including iron loss 4.2 W/kg, magnetic polarization strength 1.74, the difference between the same plate 8.5 microns, the average lamination coefficient 0.978, the electromagnetic performance has reached the domestic first-class level.




 

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Pipe fittings, elbow, reducer, ,tee,cap, flange

 

 

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