苏联下塔吉尔钢铁公司采用在浇钢过程中向中心铸管内加铝粉的方法大量生产半镇静钢。铝粉的加入量取决于钢的含碳量,一般约为120～300g/t钢。向中心铸管内加铝粉的方法为:当浇铸过程中钢锭模内的钢水高度低于规定浇高大约80～100mm时,开始加入铝粉,在达到规定的浇高之前的10～15s时,停止向中心铸管内加铝粉。 The Nizhny Tagil Iron and Steel Company in the Soviet Union in the process of casting steel to the center of the tube plus aluminum powder mass production of semi-killed steel. The amount of aluminum added depends on the carbon content of steel, usually about 120 ~ 300g / t steel. The method of adding aluminum powder into the central casting pipe is as follows: when the height of the molten steel in the ingot mold during the casting process is lower than the stipulated pouring height by about 80-100mm, the aluminum powder is started to be added, and when the preset pouring height reaches 10-15s , Stop adding aluminum powder to the central casting pipe.