標準編號:	TB/T 1779-1993
中文名稱:	道岔鋼軌件淬火技術條件
英文名稱:	Technical Specification for Quenching of Turnout Steel Rails
中標分類:	J36    熱處理
行業分類:	TB    鐵路運輸行業標準
發布機構:	中國人民共和國鐵道部
發布日期:	1993-4-22
實施日期:	1993-10-1
標準狀態:	superseded
被新標準替代:	TB/T 2344.2-2020 鋼軌 第2部分：道岔用非對稱斷面鋼軌
被替代日期:	2021-7-1
替代舊標準:	TB 1779-1986
翻譯語言:	英文
文件格式:	PDF
中文字符數:	2000 字
翻譯價格(元):	140.0
交付時間:	付款后 1 個工作日

1 Subject Content and Applicable Scope This standard specifies the technical requirements, test methods and inspection rules for quenching of rail parts such as switch rail and stock rail of trip switch at turnout, as well as wing rail, point rail and guard rail of frog, etc. This standard is applicable to the quenching of turnout rail parts. 2 Normative References GB 226 Etch Test for Macrostructure and Defect of Steels GB 230 Metallic Materials – Rockwell Hardness Test YB 28 Metal – Inspection Method of Microstructure 3 Technical Requirements