IMPORTANT ASPECTS IN WELDED OF RAILWAY SWITCHES

Abstract

In this paper are presented some important aspects about a Romanian technology used for elimination of interior rail joints in a new isolated standard turnout by aluminothermic welding method and for include this isolated standard turnout without interior rail joints in continuous welded rail (CWR) track, using the aluminothermic welding method or flash butt welding method. The main problems in this case are the computation of length closure rails, the computation of casting gap and the effect of weld cooling to ensure a good operating of railway switches after the elimination of interior rail joints and after theirs integration in CWR track. In this paper is presented, also, an original method to solve these problems.