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本文介绍了重钢三厂用170×250mm20钢连铸坯生产φ75mm圆管坯的试验情况。多次试验的结果表明,用连铸坯在φ550×3轧机上可生产出质量良奸的φ75mm圆管坯;经76机组穿孔,然后冷拔成无缝钢管,其力学性能和工艺性能可达到中低压锅炉管标准;生产成本较使用由钢锭轧成的圆管坯时低,是解决76机组供坯的一条可行途径。
This paper describes the trial of the production of φ75mm circular tube billet by 170 × 250mm20 steel continuous casting slabs of the No.3 Steel Plant of Chongqing Iron and Steel Co., Ltd. The results of several tests show that the continuous casting slab in φ550 × 3 mill can produce a good quality of sinister φ75mm round tube; by 76 units perforation, and then cold drawn into seamless steel pipe, the mechanical properties and process performance can be achieved Medium and low pressure boiler tube standard; production costs than the use of steel ingot rolled into a round tube billet is low, is to solve the 76 unit for a billet a viable way.