The paper focuses exclusively on the manual arc hardfaced layers of railtrack repairing. study is conducted in two stages- structural analysis and mechanical characteristic(hardness) study. Two types technologies for defective areas rebuilding are developed. first one hardfacing without a buffer layer, second with layer. process carried out using electrodes particularly appropriate this purpose...

This paper presents the innovation possibilities of crushers functional parts and results layers’ renovation analyses surfaces worn by biomass crusher hammers. The hammers made Hardox 400 material were renovated manual arc welding method (welded with a filled wire electrode its own protection). As an additive material, Lincore 60-O tubular from Lincoln Electric was used. quality weld layers ass...