![pet preform mold pet preform mold](https://www.eceng-petblowing.com/uploads/202114137/18-cavity-28mm-neck-pet-preform-mold12427109801.jpg)
Here are some notes for the PET preform injection molding process, for all my friend, much know-how experience, much near to the perfect production. The final result is that the bad quality &bad production of PET preform in the customer factory, which will waste the money &energy &time of all. And in order to reduce the sell cost, many manufacturers also present the general purpose injection molding machine with C type of screw &big shot weight, while they obviously ignored to bring the important notes to the customer before they make a decision focus on the PET PREFORM PRODUCTION. Our design standardization provides maximum application flexibility and rapid changeovers.Many friends would like to adopt the general purpose injection molding machie to produce the PET preform. The design also provides greater flexibility in molding applications by compensating for variations in preform ejection velocities from machine to machine and providing positive controlled-cam actuation for preform sizes.Ĭopper spiral cooling tubes provide concentric alignment with core cooling channels for uniform preform cooling and raise the turbulent flow rate to increase the heat transfer coefficient, resulting in greater cooling efficiency and minimized cycle times. This feature protects against mold damage in the event of slide closure on the preforms by absorbing the transmitted energy through the closing cams. Thread split assembles are actuated by our patented energy absorbing cam track system. This feature prevents direct heat transfer from the hot manifold to the cylinder walls, premature seal and cylinder wear, and piston seizure due to resin discharge. Pneumatic valve-gate cylinders are retained in water cooled mold plate, completely isolated from the extreme heat of the hot manifold and the valve-gate cylinder resin residue can be discharged in a non-critical area. Profiles cooling channels facilitate efficient heat transfer from the preform spherical radius and gate area to minimize crystallinity. One-piece cavities eliminate parting line coolant leaks, eliminate nozzle gate inserts, and allow for water cooling channels to be profiles to the shape of the preform. This alignment ensures concentric material distribution from the nozzle into the injection cavity resulting in less leverage on the cores during injection therefore, more accurate control of preform wall thickness variation. Preform mold cavities, nozzle housings and nozzles are also located by the same jig-ground bore diameters in the mold bases. To achieve concentricity between core and cavity mold halves, final mold base bore diameters are jig-ground. Jig-Ground Critical Alignment Diameters:.Molding surface components are made of ASSAB steel, hardened and ground to 45 Rockwell “C” in addition, all cooling channels are electro-less nickel plated to prevent corrosion. We use only the best mold steel available. This simple feature can prevent hundreds of downtime hours per year.
![pet preform mold pet preform mold](https://stackteck.com/wp-content/uploads/2020/02/DSC00636-scaled.jpg)
Molding surface components, Valve-gate assemblies and hot manifold components can be removed, serviced and re-installed without removing the mold from the machine. Auto Hot press (Rubber, Packlyt, Melamine presses).Rinsing, Filling, Capping Production Line.One Time Packages Production Line (PS PACKAGES ).PLASTIC PELLETIZING & RECYCLING MACHINES.Plastic Corrugated Pipe Extrusion Machine.Flexographic Printing Machine 2/4/6 Colors.T-SHIRT PLASTIC BAG CUTTING AND SEALING MACHINE (Hot Cut Type).Bag Cutting & Sealing Machine Making Machines.HD/ LDPE/ LLDPE HIGH SPEED BLOWN FILM MACHINE.ISL- TS & ISL-TN Series: B- Large Containers Blowing Machines.ISL- TS & TN Series: A- Small and medium containers Blowing Machine.ISL- C large Size Containers Blowing Machine.
PET PREFORM MOLD SERIES
![pet preform mold pet preform mold](https://3.imimg.com/data3/FU/EX/ANDROID-4945294/20150205_104033-250x250.jpg)
D-Series Injection Molding Machine D75-D255(Small size).