AKRON—The Shin-Etsu Silicones of America subsidiary of Shin-Etsu Chemical Co. Ltd. held demonstrations with industry equipment partners at NPE 2012, April 2-5 in Orlando, Fla.
The demonstrations featured Shin-Etsu's KEG-2000 Liquid Injection Molding System run with a variety of integrated LIMS machinery and equipment, including the Engel e-victory 310/130 LSR US, a hybrid tiebarless injection molding machine.
The machine's molding cell ran a 64 cavity, valve-gated, cold-runner mold supplied by ACH Solutions to produce a flashless liquid silicone diaphragm, with automatic part removal.
The e-victory press featured Engel's energy-saving ecodrive hydraulic system which is controlled by an electric servomotor, the company said.
Shin-Etsu said its KEG-2000 series is supplied in two components which are mixed in a 1:1 ratio to ensure easy and accurate blending with optimized physical and processing properties.
The series is engineered to perform in cold-runner systems with both open and closed-nozzle configurations.
KEG-2000 LIMS products have consistent properties from batch to batch, high clarity and range in Shore A hardness from 10 – 80, according to Shin-Etsu.
The combination of hydraulic functions with an electric injection unit makes the system comparable to all electric models, the companies said.
It also delivers the flexibility of the tiebarless clamp unit and on-board hydraulics for core-pull functions, according to the companies.