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用舍硫量较高的铁水生产球墨铸铁必须首先解决铁水的税硫处理问题.在可锻铸铁车间用可锻铸铁原铁水生产球墨铸铁,如何税硫、球化?在经过试验研究之后认为,采用多孔塞包脫硫和盖包球化处理工艺生产球墨铸铁是切实可行的.用该球墨铸铁浇注的汽车后桥壳机械性能比可锻铸铁高1/4;疲劳破坏的应力循环次数已达100万次以上.实践证明,该工艺合理实用、产品质量稳定.
With a higher sulfur content of hot metal production of ductile iron must first solve the problem of hot metal tax treatment of sulfur in the malleable iron plant with malleable iron original hot metal production of ductile iron, how the tax sulfur, nodular? After the pilot study that the use of porous plug It is practicable to produce ductile iron by desulphurization and cap packing process.The mechanical properties of automobile rear axle shell cast by ductile cast iron are higher than that of malleable cast iron by 1/4, and the number of stress cycles of fatigue failure has reached more than 1 million times. Prove that the process is reasonable and practical, product quality and stability.