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天生桥电站是我国“七五”期间国家计划建设的十大电站之一。此电站的建设由国际银行贷款,在国际投标,哈尔滨电机厂代表我国以它雄厚的技术力量和较低的成本在国际四大公司竞争中中标。在这项工程中水轮机的转轮(上冠和下环配套)超低碳不锈钢大铸件,要求按挪威KB公司的标准生产,化学成分区间窄,性能要求高,铸件尺寸大,吨位重。上冠最大直径4.3米,单重31.1吨,需钢水60吨,下
Tianshengqiao Power Station is one of the top ten power stations planned by China during the “Seventh Five-year Plan” period. The construction of this power plant is financed by international banks. At the international bidding, Harbin Electric Works won the bid on behalf of our country with its abundant technical force and lower cost in the competition among the four major international companies. In this project, the runner of the turbine (supporting the upper and lower rings) is made of large castings of ultra-low carbon stainless steel and is required to be produced according to the standard of Norwegian KB Company. The chemical composition is narrow in area, high in performance requirement, large in casting size and heavy in tonnage. On the crown maximum diameter of 4.3 meters, single 31.1 tons, 60 tons of molten steel required, under