《TBT3109-2005-AT钢轨》.pdfVIP

ICS45.080 TB 中华人 民共和 国铁道 行业标准 TB/T 3109-2005 AT 钢 轨 AT rails 2005-03-29发布 2005-07-01实施 中 华 少L民 共 和 国铁 道 部 发布 TB/T 3109-2005 目 次 前 言 .·ut 1 范 围 .·1 2 规范性引用文件 ·····························································································…… ‘1 3 术语和定义 ································································，························……，.，...…… 1 4 Al’轨断面型式尺寸、几何特征、理论质量和长度 ·············································，········…… 1 4.1AT轨断面型式尺寸 ···················································································…… 1 4.2 AT轨断面几何特征 ······················································································…… 1 4.3 A7，轨的理论质量及金属分配 ··········································································…… 1 4.4 AT轨的长度 ································································································…… 1 5 技术要求 ··································································，·····································…… 3 5.1 制造方法 ························································································，············…… 3 5.2 钢牌号和化学成分 ·························································································…… 3 5.3 交货状态 ························································.·····，································……，··… 3 5.4 拉伸性能 ······························，·······································································一 3 5.5 踏面硬度 ··························································································.·········…… 4 5.6 显微组织 ····