Seamless steel pipe rolling process optimization

In the process of MPM unit, because of the rolling load and rolling speed mismatch and low rolling efficiency, it is likely to cause steel metal accumulation, crack, stretching concave and other problems, use the relative load design method to establish numerical simulation programs and tunable key research (roll gap, rolling speed) pile pulling influence the rolling force and metals. Numerical simulation of seamless steel pipe rolling process is very necessary.
The various technical problems such as uneven thickness, rolling stuck, inside straight, diameter tolerance may arise during the MPM unit working. So, how to optimize the parameters of steel, steel pipe production and reduce the quality of the accident, improve the quality of steel, is currently an urgent problem to be solved. It is difficult to obtain all aspects of the theory from field tests cover, and expensive. Therefore, the study of seamless steel rolling process of numerical simulation method is very necessary. rolling speed and impact the quality of products MPM rolling roll gap value five key factors for the study, using the relative load design method to establish a numerical simulation program, tunable key research (roll gap, rolling speed impact of rolling force and metal) accumulation pull, use MARC platform, the impact on the establishment of a finite element model of seamless steel rolling, rolling force rolling process research and wall thickness.
The results show that: by appropriately increasing the rolling force large roll gap value, the rolling force can be reduced, on the other hand, can improve the rolling force, rolling speed adjusted to produce the corresponding roll stack pull phenomenon, solve metal pile pull. Field test data to verify the correctness of the finite element model. According to the optimized parameters, the establishment of rolling force model was simulated and compared.