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A method for producing a polypropylene (PP) sheet is disclosed, wherein the process includes the following steps:
A. The raw material mixture is loaded into the extruder barrel.
B. The mixture is then fed into a heated extrusion machine to melt and homogenize the material.
C. The molten material is shaped into a hollow polypropylene sheet using a mold forming machine.
D. The sheet is then transferred to a cooling and setting machine equipped with a movable device that can shift left and right. This step helps form a non-linear central column structure in the polypropylene plate, enhancing its structural integrity.
E. Finally, the sheet is cut into the desired size using a cutting machine to produce the final product.
By utilizing this cooling and setting machine, the polypropylene sheet is transformed into a high-strength material with an improved internal structure. This innovative approach addresses a key limitation of traditional PP manufacturing methods, where the edges of the sheet were often weak and prone to deformation. The new method not only strengthens the polypropylene plate but also enhances the overall production process, making it more efficient and reliable.
This invention offers significant industrial value, as it enables the production of durable, high-performance polypropylene sheets suitable for a wide range of applications, from packaging to construction. The process is both practical and cost-effective, making it a valuable advancement in the field of polymer manufacturing.