PETpla.net Insider 09 / 2010

Vol.6 PET planet print PREFORM PRODUCTION 28 PET planet insider Vol. 11 No. 09/10 www.petpla.net Making an even bigger splash in 2010 17 exciting categories Now open for entries FoodBev com A world of food and drink For more information on sponsorship and entry, visit www.waterinnovationawards.com Ÿ Fb\X s ;i\Xdjk`d\%Zfd Sponsors announced so far: 8. Check that the cooling time is sufficient for the preform being moulded. This has a significant impact on this defect. Cooling time typically ranges from about 1 to 3sec depending upon the preform wall thickness. Add time if necessary to increase solidification of the gate area. 9. Check to ensure hold (packing) pressure isn’t too low, espe- cially near the beginning of hold time. Adjust higher if neces- sary to fully fill out the preform. 10. Check that the hold (packing) time isn’t too little for the pre- form being moulded. Increase as necessary to optimize part weight. 11. Check the valve gate close delay timer and decrease as low as possible to improve solidification of the gate nub. 12. Check hardware for worn, damaged or failed components, specifically the mould cavities, gate inserts, robot receptacles, and clogged gate insert and robot receptacle cooling chan- nels. Spiral Binding Laminated Cover Sheet Tape and eyelet for easy hanging