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为了克服弧形连铸机的高度过高带来的麻烦,最近意大利涅利公司发明了一种低头连铸机及其操作方法(专利申请号:IT—83463)。低头连铸机的特点是结晶器呈水平或基本水平态,并仍保持结晶器振动。这样将钢水通过浸入式水口注入到结晶器液面下很困难。达涅利公司发明了控制金属流的装置,该装置可有效地阻止由于结晶器呈水平式空气容易从注口涌入。其特征在于水口中钢水流速符合下列公式:
In order to overcome the inconvenience caused by the high height of the arc-shaped continuous casting machine, recently, Italian company Nieli has invented a low-head continuous casting machine and its operation method (Patent Application No .: IT-83463). The bow-casting machine features a crystallizer that is horizontal or substantially horizontal and still holds the mold vibrating. It is difficult to inject the molten steel through the submerged nozzle into the mold surface. Danieli Company invented a device to control the flow of metal, which device can effectively prevent the horizontal flow of air from the nozzle due to the influx of easy. The utility model is characterized in that the flow velocity of the molten steel in the nozzle conforms to the following formula: