The composite roll is a kind of bimetallic composite material which consists of a high wear-resistance mate¬rial as the working layer and a high strength

toughness material as the core respectively. In this paper

a systematical introduction is given for the preparation of bimetallic composite roll by electroslag metallurgy technology including ESR clad¬ding method

electroslag surfacing by liquid metal and consumable mold cladding method at home and abroad. The influence of consumable electrode form

conductive circuit scheme

supply method of the outer metal and equipment structure on the bimetallic cladding process and the comprehensive performance of composite roll are analyzed. At the same time

the basic process characteristics and control keys technology of the different methods are summarised. Based on the analyses of the development history of electroslag cladding technology and the stability control of composite roll performance

the future prospect and development of the preparation of bimetallic composite roll by electroslag cladding method is prospected.