What are the core technologies of Yongte outdoor WPC profile production lines?

What are the core technologies of Yongte outdoor WPC profile production lines?

The true core technology of Yongte outdoor WPC profile production lines lies not only in equipment, but also in the ability to consistently produce WPC profile components that remain undistorted, crack-free, weather-resistant outdoors, feature large cross-sections, and possess high load-bearing capacity.

1、Formulation and plasticizing core technologies (determining product lifespan)

Dewatering and Exhaust Technology for Wood Flour

Moisture content in flour can directly lead to bubble formation, delamination, and reduced strength.

Core: Vacuum twin-screw exhaust system + Forced drying process

Key point: The moisture content must be controlled below 1%.

High-Filling Wood-Plastic Compatibility Technology

Wood flour and plastics are incompatible and must be processed using a coupling agent system (maleic anhydride grafting).

Core: Achieving "chemical bonding" between wood powder and plastics to enhance toughness and impact resistance

Outdoor Weather-Resistant Formulation System

Anti-UV, anti-aging, and color-resistant

Core formulation: antioxidant + ultraviolet absorber + light stabilizer

High-end co-extruded surface layer, with weather resistance improved several times over

2、Core technology of extrusion molding (determining dimensional accuracy and strength)

Stable extrusion technology for large-section thick-walled profiles: 

The columns and beams in the technical gallery have large cross-sections and wall thickness, making them highly prone to deformation and shrinkage. 

Core technology:

Balanced Design of Mold Flow Channels

Vacuum setting table extension + multi-stage precision cooling

Low-speed high-torque extrusion

Temperature Control Technology for Hot Runner and Mold Cavity in Molds

Significant temperature difference in molds can lead to bending and twisting.

Core: Multi-zone independent temperature control of die heads + Stable internal die pressure control

High-Torque Plasticizing Technology for Double Screw Machines

High-filling wood powder must exhibit strong shear strength and strong plasticity.

Core: High-torque gearbox + long length ratio screw design

Ensure uniform plasticization with no unmelted particles

3、Core Technology of Forming and Cooling (Determining Straightness and Preventing Deformation)

Gradient cooling technology

Rapid cooling must be avoided, as it may induce excessive internal stress and increase the risk of bending.

Core: Three-stage control of preheating → slow cooling → rapid cooling

Sychronous Traction Technology

Traction instability may lead to deformation and thinning

Core: Servo traction + Tension closed-loop control

4、Core surface treatment technology (determining appearance and grade)

Online Embossing Wood Grain Transfer Technology

The surface must be sanded first; otherwise, the transfer will not be secure.

Core: Sanding roughness control + Thermal transfer temperature-pressure curve

Co-extrusion Composite Technology (Essential for High-end Applications)

Surface anti-weather layer, base wood-plastic composite, single co-extrusion molding

Core: Co-extrusion die head composite structure + interlayer bonding technology

Achieve true 10-year resistance to fading, cracking, and powdering

5、Core Technologies of Automation and Control

Full-line PLC interlock control

Extrusion → Traction → Cutting → Synchronous Conveying

Core features: speed following, tension compensation, and fault interlock

Precision cutting with fixed-length flying saw

High length requirements for arch components

Core: Servo-powered flying saw + online length measurement, error ≤±2mm

Online Recycling Technology for Edge and Corner Materials

100% recycling of waste materials without compromising strength

Core: Low-temperature grinding + secondary blending

6、Core Technology of Structural Design (Specific to Greenhouse Frames, Critically Important)

Mechanical Design of Structures with Non-Uniform Cross-sections

Hollow reinforcement ribs, uniform wall thickness, and optimized load-bearing structure

Avoid stress concentration and fracture

Assembly Tolerance Control Technology

Small splicing gaps ensure smooth installation

Core: Die accuracy + cooling setting compensation

7、Summary: The 3 Core Technologies That Truly Determine Production Line Quality

High Filling Wood-Plastic Composite: Plasticization and Exhaust Technology

Deformation-free Forming Technology for Large Cross-section Thick-walled Profiles

Outdoor Weather-Resistant ASA Co-extrusion Composite Technology