|
|
|
Kenplas Forum ==> Blow Molding (Machine) ==> pet process
|
|
|
|
|
| 1 |
|
Ventilation 90% for preform, and 10% for machine.
|
Hello, what is the oven ventilation for? it helps the preform or the machine
regards
|
Dear Nasir,
In the pet blow molding process,we reheat the preforms & then stretch & blow simultaneously as per the mold type.
In the blow process there many process variables which can affect the bottle blowing.
PROCESS VARIABLES:
1-preform temp.
2-preblow pressure/primery blow pressure
3-preblow flow
4-stretching pressure
5-preblow delay time
6-stretch rod delay time
7-high pressure delay time
8-high pressure
9-exhaust time
10-oven ventilation
11-oven lamps settings
and many other things which we consider at the time of blowing e.g.preform I.V.,preform length,type of neck & preform.
|
|
IT IS A BI-AXIAL STRETCHING PROCESS
|
|
what is a process?
|
| 1 |
|
|
|
|
|
|
This forum published since July 03, 2002.
Renewed on June 22, 2005. |
Discussion Forum