| 摘要 |
A flexible, extruded plastic wall structure with a hollow core is presented along with a method of making the same. The wall structure has an overall flat back wall, an overall front wall and at least one support wall extending between and confined to the interior surfaces of the overall back wall and the overall front wall; the overall back wall, the overall front wall and the at least one support wall having a generally uniform thickness and defining at least two defined spaces. The wall structure includes sections, where the rear wall of each section is flat from the bottom of the wall structure to the top of the wall structure. The hollow wall structure has a front wall having vertically disposed sections with different contours. The method includes using extrusion die for heating and extruding plastics using a multi-functional insert within the die and air pressure to create a hollow core in the wall structure. The hollow core allows less material to flow though the die so that the die stays hotter and the flow of the extruded plastic is not impeded. The resulting extruded plastic wall structure is comprised of a generally thick portion, a generally thin portion and a profile on the face or front of the wall structure. |
