Laboratory Simulation and Characterization of Duplex Laying Head Pipe Thermal Distortions

The laying head pipes, manufactured by SMS group for over 50 years and used in wire rod rolling, may undergo distortion during fabrication with duplex stainless steel. Throughout hot forming, one part of the pipe is in contact with the metallic die, while the other is exposed to the environment. After laboratory simulations, it was concluded that differences in cooling patterns between the inner arc and the outer arc cause the distortion during manufacturing process. Industrial trials to achieve a more homogeneous microstructure and prevent distortion have already been fully implemented and approved.

MSc. Gabriela Madeira | SMS group
 

Dr. Ricardo Nolasco | CIT SENAI
 

Dra. Cynthia Castro | CIT SENAI
 

Dra. Clélia Oliveira | CIT SENAI