Investigation of the Large-Scale Pallet by Recycled Polypropylene and the Sequential Valve Gate System during the Injection Molding

Figure 10

Warpage deformations of plastic pallet. (a) -axial deformation by concurrent valve gate opening scheme (-20.530~20.538 mm). (b) -axial deformation by concurrent valve gate opening scheme (-6.444~10.906 mm). (c) -axial deformation by sequential valve gate opening scheme (-20.234~20.242 mm). (d) -axial deformation by sequential valve gate opening scheme (-6.34~9.729 mm).

(a)

(b)

(c)

(d)