The software is only for GE's use
Then the software produces a process-capability analysis that graphically illustrates predictions of multiple processing/quality relationships., the software helps molders evaluate "what-if" processing scenarios to understand the relationships between processing conditions and product quality. PCHE is being sampled selectively to developers of future high-density disc formats.Dow Plastics, Midland, Mich." PCHE demonstrated that it could be molded at moderate temperatures--572-608 F for the melt and 122-140 F for the mold. Software optimizes set-up GE drew a lot of attention at Replitech with its new process-analysis software for optical-disc molders.51 and high light transmittance across the full spectrum--including the blue-green range. The software similarly analyzes the bonding and metallization steps.
A GE Plastics technical development engineer uses it in consultation with a customer to input the product specifications, process limits, and type of equipment and materials to be used. It is said to have exceptional optical purity and clarity, with a refractive index of 1. The software then quickly analyzes the molder's DOE Mold sppliers results to show what variables have the most effect on those specs that are most important to disc quality. It also does not need drying before molding.94 g/cc) and very low moisture absorption (less than 0. GE is working with a handful of major disc replicators to expand the database. From this, the GE engineer and customer can derive a process set-up that will optimize yield and cycle time. Bonding and metallizing on a DVD production line at Advanced Optical Disc in Vianen, Netherlands, resulted in playable DVDs, Dow reports. The replication of DVD features was excellent.Y. GE has programmed the software with 15 combinations of molds, machines, and materials used in the marketplace. The software also helps a molder customize the database to its particular mold, machine, and material by suggesting efficient DOE (design of experiments) routines. PCHE also boasts low density (0.
The software is only for GE's use. Developed by GE Plastics and GE Corporate R&D in Schenectady, N. High stiffness of PCHE (325,000 psi flexural modulus) will enable discs to withstand faster acceleration and deceleration spin rates on next-generation disc players, Dow claims. Describing the recent molding trials, Axxicon development and engineering manager Merijn Voets says, "The new discs were extremely flat with good pit replication, and they exhibited virtually no birefringence..01%), an important factor in maintaining disc flatness. PCHE (known familiarly as "Peachy") stands for polycyclohexylethylene, a saturated cyclic hydrocarbon that is derived from styrene monomer., recently conducted DVD molding trials of its developmental PCHE resin at the Disc Technology Center of Axxicon Moulds in Eindhoven, Netherlands