Method and device for generating differential stresses in the production of endless, flexible, metallic casting strips to improve the belt performance in continuous casting machines.

摘要

The method and apparatus introduce differential stresses in wide, thin, revolving flexible metallic casting belts during their manufacture for enhancing their performance when employed in continuous metal casting machines. Certain areas, -- notably the two marginal areas -- of said belts are placed under greater residual longitudinal stretch than the greater main middle area of the belt defined by these more highly stretched margins using endless roller-stretch flattening or leveling with a work roller that is effectively larger in diameter toward its ends than in its middle zone for permanently stretching both margins relative to the main middle area, or using conventional cylindrical work rollers and heating (for thereby expanding and slacking) the middle area of the casting belt during such roller-stretch leveling while leaving the margins cold.