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一、连铸连轧的条件目前,铸坯和结晶器之间的摩擦力限制了方坯垂直或水平连铸时的拉坯速度,使铸速小于4米/分,(多数为2米/分)。就不同钢种和规格来说,为了降低能耗和设备投资,都希望提高拉坯速度,实现连铸连轧。目前一台线材轧机生产能力已超过50吨/时。130毫米方坯,连铸连轧要求的拉坯速度至少为6米/分,才能充分利用余热而不要中间加热。
First, the conditions of continuous casting and rolling At present, the friction between the slab and the mold limits the casting billet vertical or horizontal casting speed, the casting speed of less than 4 m / min, (most of 2 m / Minute). In terms of different types of steel and specifications, in order to reduce energy consumption and equipment investment, all want to improve the casting speed, to achieve continuous casting and rolling. At present a wire rod mill production capacity has exceeded 50 tons / hour. 130 mm billet, continuous casting and rolling requirements of the casting speed of at least 6 m / min, in order to make full use of waste heat without intermediate heating.