MODELLING OF WATER SPRAY COOLING. IMPACT ON THERMOMECHANICS OF SOLID SHELL AND AUTOMATIC MONITORING TO KEEP METALLURGICAL LENGTH CONSTANT

International audienceThe paper focuses on two points related to water spray cooling during secondary cooling. The first one is the impact in terms of local stress generated along the surface and subsurface of the cast product when passing by each water spray sprinkler. The second point deals with an automatic determination of the water flow rate to be imposed to each sprinkler in view of an increase of the casting speed under the constraint that the metallurgical length should be maintained constant. The 3D finite element software THERCAST ® is used to address those two questions