2.2.2 Calculation of Mold Cooling Time for the Mold.

Use diagram cooling time calculation.

T    = normal demolding temperatur of article.
T^  = maximal demolding temperatur of article.
Vm = melt temperatur.
Vw = mold temperatur.
Ve = demolding temperatur of article.
s    = wall thickness.

for example :
                                                                                    No.1                               No.2
                                                                      -----------------------------------------------
                                                                                        -4                                  -4                      
Thermoplast                                   PS           a = 8.5 - 10                           8.3 - 10 
Melt temperatur                             Vm                 250 C                              250 C
Mold temperatur                            Vw                  25 C                                 25 C
Demolding temperatur                    Ve                   50 C                                 60 C
Wall thickness                                  s                      2 mm                                4 mm

No.1     T   =  Vm - Vw   =       250 - 25   
                       ----------         -----------   =   9
                       Ve - Vw               50 - 25

No.2     T   =  Vm - Vw   =       250 - 25 
                       ----------          -----------  =   6.43
                       Ve - Vw               60 - 25

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