大连炼铁厂于1987年由西德沙士吉德公司引进离心铸管生产线主要设备,总投资为6700万元,其中设备投资5500万元,总重约1000t。一期工程已于1987年11月投产。引进设备生产正常,可以生产制造难度较大的φ100×6000mm离心球铁铸管,年产能力为5万吨。产品质量优异,其性能指标为:球化率>90％,延伸率17～22％,抗拉强度σ_b=5MPa,硬度HB170～180,水压试验5MPa,承插 Dalian Iron & Steel Co., Ltd. introduced the main equipment of centrifugal casting pipe production line from Saxe Shide in 1987 with a total investment of 67 million yuan, of which the equipment investment is 55 million yuan and the total weight is about 1000 tons. The first phase of the project was put into operation in November 1987. The introduction of equipment production is normal, can produce more difficult to manufacture φ100 × 6000mm centrifugal ductile iron pipe, with an annual output capacity of 50,000 tons. Excellent product quality, its performance indicators: nodularity> 90%, elongation 17-22%, tensile strength σ_b = 5MPa, hardness HB170 ~ 180, hydraulic test 5MPa, socket