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我厂生产建筑工程用的薄壁铸铁管已有十几年历史,产量、品种逐年增加。过去采用砂型手工操作,文化大革命以后,广大革命职工高举“鞍钢宪法”伟大红旗,大搞技术革新,采用了连续铸管新工艺,大大改变了生产落后面貌。一、薄壁铸铁管品种根据国内外市场的需要,目前计生产英国B·S416和B·S460标准的4~＂和6~＂污水管和清水管;另外,法国标准的薄壁管也有少量生产。上述各类铸铁管的尺寸、规格和化学成份
Our factory production of thin-walled castings used in construction engineering has more than 10 years of history, output, variety increased year by year. In the past, using sand-type manual operation and the Cultural Revolution, the vast majority of revolutionary workers held high the great red banner of the Ansteel Constitution, vigorously promoted technological innovation, adopted a new continuous casting process, and greatly changed the backwardness of their production. First, the thin-walled cast iron pipe varieties According to the needs of domestic and foreign markets, the current production of the British B · S416 and B · S460 standard 4 ~ “and 6 ~” sewer and water pipes; In addition, the French standard thin-walled tubes also have a small amount produce. The above types of cast iron pipe size, size and chemical composition