Normal production of the electrolytic tinning line at Baoshan Iron & Steel Co. Ltd. was restrained to some extent by short service life of the reflow conduct roll and frequent rush repairs.

宝钢电镀锡机组软熔导电辊使用寿命短，抢修频繁，一定程度上制约了机组的正常生产。

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Aiming at decreasing the fluoride and sodium content of processing flux in Baoshan Iron and Steel co, the dephosphorization and desulfurization experiment during hot metal pretreatment was performed.

宝钢预处理熔剂中氟含量和钠含量较高，为此在实验室进行了铁水预处理脱磷、脱硫实验。

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