核島主給水流量控制系統(tǒng)用P280GH無縫鋼管的研制

R & D of P280GH Seamless Steel Tube for Main Feed Water Flow Control System of Nuclear Island

摘要: 介紹了“華龍一號”核電機組核島主給水流量控制系統(tǒng)用大直徑厚壁P280GH無縫鋼管的質(zhì)量特性、生產(chǎn)工藝及關(guān)鍵技術(shù)，并檢驗了P280GH無縫鋼管的產(chǎn)品性能。結(jié)果表明：P280GH無縫鋼管的冶金質(zhì)量、化學(xué)成分、力學(xué)性能、無損檢測等各項指標(biāo)均滿足相關(guān)技術(shù)規(guī)范的要求，能夠滿足“華龍一號”核電機組核島主給水流量控制系統(tǒng)對碳鋼無縫鋼管的需求。

Abstract: Elaborated here in the article are quality characteristics, the manufacturing process and critical techniques of the large-sized, heavy-wall P280GH seamless steel tube for the main feed water flow control system of the nuclear island of Hualong No.1 Nuclear Power Unit.And the product performance of the said tube is tested.The result shows that the P280GH seamless steel tube has been in compliance with relevant requirements as specified under applicable technical specification in terms of metallurgical quality, chemical composition, mechanical property and NDT etc., and also has met the requirements for the carbon steel seamless tube as used by the main feed water flow control system of the nuclear island of Hualong No.1 Nuclear Power Unit.