Compensating pressure treatment roller - circulates gas or fluid through porous elastic structure between casing and stationary core

摘要

The compensation roller is for pressure-treatment of strip material, having a casing rotating round a stationary core, and forming a press gap with another roller. The space between casing and core is filled with fluid or gas in zones under different pressures. Packets of elastic material inserted in the space form porous structures. As the gas or fluid circulates, it passes through radial branch passages in the core, and one or more packets of elastic or distorting material forming a porous or permeable structure with a throttling effect. ADVANTAGE - Simplicity and low cost.