TOKYO—Sumitomo (SHI) Demag is to demonstrate the company's technical liquid silicone elastomer technologies at the upcoming K Show 2019.
The K fair will be held Oct. 16-23 at Messe Duesseldorf in Germany.
Specifically, the molding machine manufacturer will show production of components that feature a light matrix construction, produced using a specially-configured IntElect 130 machine.
The IntElect 130, the company said, offers performance with an "outstanding environmental footprint." The hardware is said to use 20 percent less energy that competing machines without any compromise to overall productivity.
These features are supported by the machine's drive system, which is geared towards top dynamics, precision and repeatability. The new motor is shorter and features new spindle types.
New versions of the IntElect range offer precise shot control and the ability to process low-viscosity material. Units feature a specially-designed screw, ranging in size from 14mm to 45mm.
Other features include a modified plasticizing unit, a shut-off system specially designed for processing LSR, and a spring-loaded, non-return valve to support the highest processing consistency, the comapny said.
"LSR is a fairly unique material in that it remains flexible and elastic down to -50°C, while it also retains its properties up to 200°C," said Thomas Kottler, project manager for LSR at Sumitomo (SHI) Demag. "As a result, LSR is starting to be used more extensively in encapsulated electronic components, cables, etc., where insulation is required for user safety."
Other applications that can benefit from LSR properties include automotive electronic components, such as headlights, seals and engine components. It supports the molding of complex optical surfaces onto a light guide for a production of matrix headlights.
While LSR moldings, particularly those using micro-structured surfaces, can cause material flashing, this is reduced by using an integrated and controlled vacuum system with the IntElect machines, the company said. This also helps to prevent burn marks or air bubbles. Additionally, an inear guide system for the platen opening and closing sequence, with a built-in staged clamp force, also can reduce the risk of flash.