Trexel at the Fakuma 2018
For many years, Trexel GmbH of Siegen, Germany, has been a well-known supplier of the MuCell process for foam injection molding. At this year’s Fakuma, the company is coming out with new applications such as foamed thin-walled packaging and a product portfolio expanded to include propellants and foamed blow-molded parts.
For many parts, weight savings are the main reason for using thermoplastic foam-injection molding. Thin-wall packaging, however, profits also from improved melt flow, since viscosity is reduced by including a propellant. Lower inner wall pressures are the result, so that the manufacturer can claim an approx. 30 % reduction of the locking force required – thereby enabling the use of smaller machines. This way, packaging parts can be made 20 % lighter and thinner-walled, even with a thicker sealing rim at the end of the flow path. For such applications, Trexel has developed its new P series MuCell gas dosing devices. They are characterized by dosing regulation adapted to short plasticizing times, high dosing precision, as well as reproducible process constancy and stability.
For the established T series dosing systems, Trexel is presenting a satellite model for physical foam injection molding in a new, more economical beginner version. Additional machines can be included at low expense in combined production cells in particular. So-called booster stations available in two power ranges assume the supply of propellant to the individual satellites.
Trexel is offering an additional innovation, a solution for chemical foam-injection molding named TecoCell. The patented chemicals in TecoCell are claimed to be far superior to conventional propellants. The use of 0.08 µm small CaCO₃ particles has a uniform microcellular foam structure as a result – with a simultaneously large weight reduction as well as good mechanical properties and surfaces.
Fakuma: Hall A4, booth 4007
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