WPC door Extrusion Line Reference parameters

WPC door Extrusion Line Reference parameters for the extrusion process

As a professional manufacturer specializing in wood-plastic door extrusion equipment, Yongte Company is committed to providing customers with one-stop solutions ranging from equipment supply to comprehensive technical support. Our offerings include not only high-performance production line systems but also professional on-site installation and meticulous commissioning services. For new customers using our equipment for the first time, we recommend utilizing the provided extrusion process parameters as key references for initial startup operations. These parameters are set based on typical production conditions, facilitating rapid production commencement. During subsequent production processes, customers may flexibly adjust and continuously optimize these parameters according to specific raw material characteristics, product specifications, and operational environment requirements to achieve optimal production efficiency and product quality.

1. Temperature Setting (Standard Formula)

The temperatures at each section of the extruder should be finely adjusted according to raw material ratios and environmental conditions to ensure uniform material plasticization and prevent char formation. The main unit's rotational speed should be maintained within an optimal range to balance production output with product surface quality. Vacuum pressure must remain stable to effectively remove moisture and volatile compounds, preventing internal bubbles or delamination in the product. Drawing speed should match the extrusion rate to avoid product deformation or dimensional deviations. Regular cleaning of die block deposits is essential for maintaining consistent output quality and surface smoothness.

2. Vacuum calibration& Water Cooling Parameters

• Settlement vacuum degree: ≥ -0.09 MPa
• Cooling water temperature: 15–20°C; water pressure ≥ 0.3 MPa
• Mold and setting mold: strictly coaxially aligned
• The cooling water circuit of the setting mold must remain unobstructed to prevent localized blockages that could lead to uneven cooling; flow rates in each water chamber should be evenly distributed to ensure surface smoothness and dimensional stability of the product. The arrangement of vacuum ports should be optimized to avoid poor adhesion or bubble defects.

3. Basic Requirements for Raw Materials

• Water content of flour powder: <3%; mesh size: 80–100
• Mixing method: Hot mixing at 80–100°C; cold mixing below 40°C before use.
• PVC resin: Select SG-5 or a higher polymerization degree model, with an apparent density ≥ 0.45 g/ml and volatile matter ≤ 0.3%.
• Stabilizer: Environmental-friendly composite calcium-zinc stabilizer, with dosage precisely controlled according to the manufacturer's recommended ratio.
• Lubrication system: Maintains balanced internal and external lubrication to prevent precipitation or melt fracture.
• Filler and additives: Ensure uniform dispersion without agglomeration or impurities, with consistent performance across batches.