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几年来,我厂广大工人和技术人员在毛主席无产阶级革命路线指引下,通过对中锰稀土球墨铸铁磨球(简称中锰铁球)的试验与生产,对其生产工艺、质量指标以及检验方法摸索了一些经验,尤其在中锰铁球的冒口断面宏观状态检验方法方面初步掌握了一些规律性的东西,这对稳定和提高产品质量具有积极的作用。当然,由于各厂生产条件不同,我厂的这些初步经验具有一定的局限性,以下总结,仅供参考。
In the past few years, under the guidance of Chairman Mao’s proletarian revolutionary line, the vast numbers of workers and technicians in our factory, through the trial and production of China-Mn rare-earth ductile iron ball (referred to as medium-manganese iron ball), analyzed their production technology, quality indicators and inspection The method explored some experiences, especially in the macroscopical state inspection method of riser cross section of medium manganese ferromagnet, some regularities were initially mastered, which has a positive effect on stability and product quality improvement. Of course, due to the different production conditions of each plant, these preliminary experiences of our plant have certain limitations. The following conclusions are for reference only.