.... A mathematical model of the drying process is presented. It allows the moisture and temperature histories, the stress and strain histories, and the buildup of mechanical properties to be simulated. The temperature of the heating medium, the humidity and pressure of the ambient air, and either applied loads...

... to the compressed mask frame and the frame is allowed to retract. Subsequently, during further processing of the cathode ray tube, the tensioned shadow mask is subjected to heating. The heating causes some of the tension to decrease due to stress relaxation phenomenon associated with heating and creep...