High-Temperature Melting and Extrusion
Polypropylene (PP) resin is melted in an extruder under high temperature, forming a consistent and homogeneous molten polymer.
Mold Shaping
The molten PP is shaped into a flat sheet using a specially designed die, forming the basic structure of the corrugated sheet.
Cooling and Forming
The sheet passes through a cooling system (such as rollers or chill plates), which solidifies and stabilizes the shape.
First Traction – Uniform Pulling
A traction machine pulls the sheet at a constant speed to maintain uniform thickness and surface quality.
Secondary Heating and Calibration
The pre-shaped sheet is reheated and passed through a forming mold or calibrator to finalize the corrugated structure.
Final Traction and Cutting
The shaped corrugated sheet is pulled again and automatically cut to the desired size.
Suzhou NewPlast Trading Ltd. Your Partner in Plastic Solutions Specializing in eco-friendly plastic raw materials & finished products trade since 1993. We serve global manufacturers with premium PP resins, recycled plastics, and customized industrial packaging.
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