Aiming at the possible cracks

deformation and other casting defects caused by casting-rolling continuous forming process

it was investigated for influences of different high temperature on the thermal stress and strain of the casting ring at the same external environment and effects of environmental temperature and heat exchange coefficient on thermal stress and strain of casting ring at the same high temperature.The results show that the inner surface frontier and the central position of the ring can generate a large principal stress and large deformation

resulting in occurrence of crack.In addition

effects of heat exchange coefficient on casting stress are the greater than those of the ambient temperature.After taking the heat preservation countermeasures for casting removed from the model

thermal stress and deformation of the casting are greatly reduced

and tendency of the cracks is reduced obviously.