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一、不平常的钢板2000年伊始,三峡左岸电站的建设进入到水轮发电机组大型埋件安装的关键时期,在这一阶段需要将连接大坝上游机组进水口至机组蜗壳的引水钢管埋设在混泥土坝身中。根据工程设计,需要采用60kgf/mm~2级的低合金高强度调质钢板才能满足要求。鉴于国内当时还没有成熟的产品可供选用,受三峡总公司的委托,三峡国际招标公司通过国际招标方式,选定投标报价最低的日本三井物产株式会社代理的日本钢铁制造业巨头住友金属工业株式会社为合同供货商。
First, the unusual plate At the beginning of 2000, the construction of the Three Gorges Left Bank power plant into the water turbine generator large embedded parts of the installation of a critical period, at this stage need to connect the dam upstream unit intake to the crew of the spiral casing of the diversion In the concrete dam body. According to the engineering design, 60kgf / mm ~ 2 low-alloy high strength quenched and tempered steel plate should be used to meet the requirements. In view of the domestic is not mature products available for selection, commissioned by the Three Gorges Corporation, the Three Gorges International Tendering Corporation through international bidding, the lowest bidder for the selection of Japan’s Mitsui & Co., Ltd. agent Japanese steel giant Sumitomo Metal Industries, Ltd. Clubs are contract suppliers.