Raw Material Preparation
PVC Resin
High-purity, weather-resistant PVC granules (e.g., S-PVC or E-PVC) are selected.
Additives
Plasticizers (e.g., DOP, DINP): Adjust flexibility and softness.
Stabilizers (e.g., calcium-zinc, lead salts): Prevent thermal degradation during processing.
Colorants/Pigments: Customize colors (transparent, yellow, blue, etc.).
UV Inhibitors (for outdoor use): Enhance weather resistance.
Mixing & Pelletizing
Raw materials are uniformly mixed, melted, and extruded into PVC pellets.
Extrusion Molding
Extruder
PVC pellets are melted via screw heating (160–200°C).
Die Design
Strip profiles: Common types include flat, wavy, or reinforced anti-collision shapes.
Thickness range: Typically 1.5–3.0 mm; width 50–300 mm.
Cooling & Shaping
Extruded strips are solidified via water bath or air cooling.
Cutting & Processing
Length Cutting
Strips are trimmed to standard lengths (1.5–3.0 meters).
Edge Finishing
Laser or hot cutting: Ensures smooth, burr-free edges.
Bottom chamfering: Reduces tripping hazards.
Special Treatments
Perforation: For weight bars or connectors.
Printing/Labeling: Adds logos or warnings (e.g., "Caution: Impact Risk")
Accessory Assembly
Weight Bar Installation
Metal rods or PVC-coated weights are embedded at the bottom.
Wind Seals
Optional side-attached sealing strips for better insulation.
Track Pre-Assembly
Strip tops are inserted into track channels (expansion space reserved).
Quality Inspection & Packaging
Performance Tests
Tensile strength (≥15 MPa), low-temperature flexibility (no cracking at -30°C).
Transparency (≥85% light transmission for clear strips).
Visual Inspection
No bubbles, impurities, or color deviations.
Packaging
Bundled by size (e.g., 50 strips/bundle).
Dust-proof film + cartons/PP bags, labeled with dimensions and material info.
Key Process Control Points
Temperature Control
Overheating causes yellowing; insufficient heat affects flow.
Thickness Consistency
Impacts vertical alignment and durability.
Eco-Compliance
Food-grade strips must meet FDA/EU 10/2011 standards.
Customization Options
Functional Upgrades
Anti-static, antimicrobial coating, glow-in-the-dark strips.
Structural Designs
Double-layer (mesh-reinforced), segmented (variable hardness).
Note：For specific formulation parameters or equipment recommendations, feel free to inquire!
