XPS FOAM BOARD DIES

Polystyrene (XPS) Foam Board Dies

Enhance control over product dimensions, reduce scrap, and eliminate shutdowns for die maintenance with a Nordson Extrusion Dies Industries' die system for extruded polystyrene foam board. Plus, Nordson Extrusion Dies Industries' technology will dramatically reduce downtime for product changeovers and offset loss in productivity caused by switching to a non-ozone depleting blowing agent.

A new type of forming box: When polystyrene passes through any XPS foam board die, it is charged with a blowing agent. As it exits the die lips, it undergoes a thirty-fold increase in volume almost instantaneously. This expansion takes place just beyond the lips in the forming box, which has four-way adjustability. The forming box gives the board its initial shape in terms of thickness and width. The forming box in the Nordson Extrusion Dies Industries system is a separate, independent component that makes possible on-the-fly product changeovers without stopping the production line.

An adjustable, full-manifold internal deckle: The deckle blades at either end of the manifold can be used to change flow-channel width by being moved farther in or out of the channel.

External edge restrictors: Restrictors create the final side dimensions of the board as it emerges from the forming box and passes between the two top and bottom sizing plates that are typically used in foam board production. Mounted on rails that extend from the front of the forming box, the edge restrictors ensure board edges that are more flush and flat. Here too, the omni-directional nature of foam expansion comes into play. While edge trim losses in conventional XPS board production typically are around 10%, restricting expansion at the edges results in more lineal feet of board.

Features Available.