Silicon slag ball is made of metal silicon slag powder by machine.Silicon slag is in the process of smelting silicon metal furnace is a kind of floating scum, silicon slag containing a large number of silicon metal and other elements, and is a good kind of deoxidizer, widely used Yu Gangshui deoxidization, on the purpose of purifying molten steel, due to the price of the product is low, the effect is good, be steel used in place of ferrosilicon, is one of the authors efficiency good product