DESIGNING SCREWS AND DIES FOR EXTRUSION COATING WITH STRAIGHTFORWARDSOLUTION PROCEDURES

摘要

Extrusion coating equipment can be designed by using sophisticated software available today on the market.However, in daily practice where quick estimates of the parameters involved are needed, the application of elaboratesoftware can be time consuming and costly. Starting from resin rheology, this paper deals with easily applicablepractical relationships for dimensioning extrusion screws and dies, which enable the optimization of coatingprocesses. The formulas presented can be calculated even with a hand-held calculator. Numerous worked-outexamples illustrate their use.