The composition of molten steel,the quantity and composition of inclusions in the smelting process of S355J0+N wind power tower steel plate of Xingcheng Special Steel Works Co.,Ltd.is determined by spectrometers and ASPEX-1020 inclusions automatic analyzer.By analysing the typical inclusion components in the sample,the evo-lution process of the inclusion is discussed.According to the fact of more inclusions in tundish sample than in ladle sample,it is preliminarily determined that the ladle molten steel is reoxidized when it enters into the ladle in an unsta-ble state.The results show that the inclusion index of S355J0+N steel plate for wind power tower can be constantly kept below 9.5 by means of shroud pouring and argon blowing stopper.
关键词
风电塔筒用钢板/夹杂物/保护浇注/吹氩塞棒
Key words
Wind power tower steel plate/Inclusion/Shroud pouring/Argon blowing stopper
维普
万方数据