Kuskov Y. Elektroslag process and cladding technology using discrete materials and current-conducting mould

The work addresses the problem of increasing efficiency of restoration and hardening of different-application components and parts through using high-productivity technologies based on the electroslag process. The new technological area has been formed in the field of electroslag technologies for making new and reconditioning worn-out parts with closed working surface, in particular rolls, of any chemical composition using non-compact fillers in the form of grit and non-consumable water-cooled sectional electrode moulds as a surfacing material. Comprehensive research has been conducted to study the electroslag process and the technology suggested, starting from development of an optimal design of the mould and estimation of its service life up to investigation of physical-metallurgical, thermal-physical, electrotechnical and magnetic phenomena occurring during surfacing. Methods have been identified, enabling control of these phenomena with a target to provide sound bimetal products. The investigationsconducted allowed all stages of application of the roll surfacing process under industrial conditions to be scientifically grounded, as well as the engineering and design data bank to be generated to design specialised surfacing machines and produce bimetal rolling-mill rolls of any dimension.