规范《DLT869-2004-火力发电厂焊接技术规程》.pdfVIP

ICS 25.160.10 F 23 备案号:13619一2004 11 中华人民共和国电力行业标准 DL / T 869一2004 代替DL 5007一1992 火力发电厂焊接技术规程 The code of welding for power plant 2004-03-09发布 2004-06-01实施 中华人民共和国国家发展和改革委员会 发 布 DL/T869一 2004 目 次 前言 ·······························································”··················································……n 1 范围 ····························································································…… “············…… 1 2 规范性引用文件 ················································································……’二’二·‘一 ’··… 1 3 一般规定 ··········································································································…… 2 4 坡口制备及组对要求 ········································································……二‘二‘’二’二’二’二二‘4 5 焊接工艺 ”······································································································”·… 8 6 质量检验 ······················································”········································……’.··……12 7 质量标准 ··········································································································……15 8 焊接修复 ························································”················································……17 9 焊接技术文件 ···································································································……18 附录A(资料性附录) 火力发电厂常用钢材的化学成分和力学性能 19 附录B(资料性附录) 常用焊条熔敷金属的化学成分和常温力学性能 .·29 附录C(资料性附录) 常用焊丝的化学成分 ·33 附录D(资料性附录) 埋弧自动焊常用焊剂简明表 .·35 附录E(资料性附录) 焊接异种钢的焊条 (焊丝)及焊后热处理温度速查表 .·36 DL/T869一 2004 月U 吕 根据原国家经济