|Smaller clamping force||: Thin products with large projected areas can be molded with smaller clamping forces, thanks to the extention effect given by high-speed pressing during injection with the mold open.|
|Uniform thickness||: The 4-axis parallelism control ensures uniform thickness even for unevenly loaded moldings produced with side gate dies such as transparent window plates.|
|Less distortion/warping||: A lower and more uniform pressure used by the molding press has reduced the residual stress.|
|Composite(glued)molding||: A lower resin flowing pressure does not deform the mating surfaces.|
●Uniform thickness and less distortion/warping
Projected area = 5700cm2/ Material: PP
|Injection press molded
Press pressure = 650 ton
|Standard injection molding process
Clamping force = 850 ton
Injection pressure = 1700kg/cm2
●A5 size Chassis of PC (A5 size) : M200C-DM
●Glued molding- Copper foil(35um)
A lower resin flowing pressure within the mold doesn’t spoil the appearance and other properties of glued products.
The MPPS obtains a constant resin density by pre-loading the screw barrel.Pre-loading is accomplished by activating the shutoff valve at the nozzle tip and then forwarding the injection screw until the check valve on the screw head closes. At this point the trapped resin inside the barrel is under a constant pre-injection pressure and hence a constant density. The screw position after pre-loading is taken as the starting point of the injection stroke by the MPPS.Therefore, with a constant resin density and a fixed, programmed injection stroke, the injection volume remains constant after every cycle.