erformance tests
ermanent ways;Qualification tests;Qualifications;Quality assurance;Rails;Railway applications;Railways;Repair welding;Repairs;Reprocessing;Specification (approval);Steels;Suitability;Testing;Tracks (materials handling equipment);Travel ways;Welding;Welding electrodes;Welding engineering;Welding filler metals;Welding processes【摘要】: This European Standard specifies restoration by electric arc welding and is limited to the head of the rails only.This European Standard describes the approval systems for consumables and procedures used in manualmetal arc and flux cored metal deposit rail repair welding. The standard includes the quality-related tasks andresponsibilities of personnel involved in the electric arc repair welding of rails. The standard applies to plainrail and switches and crossings manufactured from new vignole railway rails R200, R220, R260, R260Mn,R260Cr and R350HT grade rails of 46 kg/m and above as contained in EN 13674-1 and EN 13674-2.The permitted welding processes are limited to Electric Arc (EA) in accordance with EN ISO 4063 and are bydescription Process No 111 : MMA (Manual Metal Arc) and Process No 114: FCAW (Flux Cored Arc Welding).This European Standard may be applied in situ, at line side or at out of track locations. The flash welded legends of austenitic manganese steel crossings are included in this standard, except when located within500 mm of manganese crossings.【中国标准分类号】: S11【国际标准分类号】: 25_160_10;93_100【页数】: 35P.;A4【正文语种】: 英语 | 欢迎光临 世界资料网论坛 (http://bbs.infoeach.com/) | Powered by Discuz! X2.5 |