Monitoring cure of thermoset mouldings - by using internal pressure-time curve, cutting off external pressure at appropriate point and ending cycle at suitable time

摘要

Moulding crosslinking materials is monitored and/or regulated where they are pressure-moulded, preferably hot. The parameter used for the purpose is its speed of reaction. The process is pref. used for moulding polyesters. ADVANTAGE - The use of reacton speed makes the qualitative evaluation automatic.