SL Screw
The innovative SL Screw assembly reduces shear heat, improves molding stability, prevents burn spots and stagnation of the melt in the barrel, and allows exceptionally fast color and/or resin change-out. In traditional injection molding, shear heat develops due to dragging resistance of the resin between the screw flights and the barrel. This causes fluctuation of the molten resin density and various other problems. The SL (Spiral Logic) screw assembly avoids these problems by eliminating shear heating instability. Benefits of the SL screw assembly include:- A Uni-Layer Melting Model that eliminates the compression zone of the screw and prevents burn spots and stagnation of the melt in the barrel
- Improved resin pressure stability and elimination of random short shots
- Significantly decreased screw and barrel wear caused by the formation of super critical water
- Elimination of product surface blistering due to incomplete material melting