Abstract
Electrotechnical C-Si steel in ambient and cryo temperatures of cold rolling conditions was investigated. The plastic deformation zone of rolling process was analysis from point of view of normal rolling pressure distribution during contact arc and rolling forces. Simplification of rolling gap as two dimensional objects without any axial tensions was used. In length of contact arc (x?<0; ld>) were defined only two slipping zones (backward and forward slip zone). Analytic mathematical equations for calculation of average normal rolling pressure in rolling gap are discussed. Experimentally measured data of rolling forces were processed by linear regression and two approximation equations describing of rolling forces in ambient and cryo temperature and deformation regimes were created.