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日新钢铁公司吴厂第一炼钢车间为了延长铁水预处理喷枪的使用寿命,改变耐火材料材质,提高耐火材料的强度,抑制了裂纹发生。为控制芯管膨胀,取消了芯管的加强筋,采用了厚壁芯管,裂纹得到控制。更新了型模振动台车,提高了振动力和实现了浸渍部位的均匀振动。喷枪寿命延长1.5倍,成本降低41％,喷枪更换频率也从原来的每日1.5次,减少到每日1次。
In order to extend the service life of the hot metal pretreatment spray gun, Nissin Steel Company Wuchang First Steelmaking Plant changed the material of the refractory material, improved the strength of the refractory material and restrained the occurrence of cracks. In order to control the expansion of the core tube, the reinforcing rib of the core tube was canceled and the thick-walled core tube was used, and the crack was controlled. Updated mold vibration trolley to improve the vibration force and the impregnation site to achieve a uniform vibration. Spray gun life 1.5 times longer, the cost reduction of 41%, the gun replacement frequency from the original 1.5 times daily, reduced to 1 day.