Cored wire desulfurized by calcium carbide molten iron and desulfurizing method

The present invention discloses one kind of coated calcium carbide wire for desulfurizing molten iron and its desulfurizing method. The coated calcium carbide wire consists of moistureproof film, iron coating and coated core powder; and the coated core powder is mixture of calcium carbide, calcium oxide, calcium carbonate, fluorite and carbon powder. The coated calcium carbide wire of the present invention needs no special transport apparatus and storage apparatus, and has simple usage, low cost and less iron loss. The present invention also provides the desulfurizing method with the coated calcium carbide wire, and the method is simple, short in desulfurizing time and suitable for most steel plants. 本发明公开了一种碳化钙铁水脱硫包芯线及脱硫方法，它由防潮薄膜(1)、铁皮(2)和包裹于铁皮(2)之内的芯线粉料(3)组成，芯线粉料(3)是由碳化钙、氧化钙、碳酸钙、荧石、碳粉末混合而成。本发明提供了一种不需要专门运输设备和储存设备，使用简单，投资省，铁损少的碳化钙铁水脱硫包芯线。本发明还提供了一种碳化钙铁水脱硫包芯线的脱硫方法。该方法简单，脱硫时间短。可广泛实用大多数钢厂采用。