PVC fiber reinforced hose is one of the most widely used flexible hoses for water, oil and gas transmission in industrial, agricultural and household scenarios. Many global buyers and industry practitioners focus on its production process, as advanced and standardized manufacturing procedures directly determine the hose's pressure resistance, durability, flexibility and overall service performance.
Different from ordinary single-layer PVC hoses, fiber-reinforced PVC hoses adopt a three-layer composite structure (inner PVC layer + polyester fiber braided layer + outer PVC protective layer). The entire production process relies on professional automatic extrusion production lines, with strict process control from raw material processing to finished product packaging, ensuring stable product quality and consistent specifications.
Complete Step-by-Step PVC Hose Production Process
The manufacturing of PVC fiber reinforced hoses includes 8 core standardized procedures. Each step is precisely controlled by professional equipment to avoid delamination, deformation, air leakage and water leakage problems. The detailed process is shown in the table below:
|
Process Step
|
Operation Details & Functional Purpose |
|---|---|
|
1. Raw Material Mixing |
Mix high-purity PVC resin, plasticizers, stabilizers and lubricants in a professional mixer to form uniform and smooth PVC compound materials. This step ensures the finished hose is non-toxic, odorless, weather-resistant and free of brittle cracking. |
|
2. Inner Layer Extrusion & Molding |
The mixed PVC materials are transported to the single-screw extruder, and extruded into smooth and uniform inner tube blanks through precision molds. The inner layer is the direct contact layer for conveying media, requiring high density and smooth inner wall to reduce fluid resistance. |
|
3. Primary Cooling & Shaping |
The hot extruded inner tube enters the stainless steel cooling water tank for spray cooling. Rapid and constant-temperature cooling stabilizes the inner tube diameter, maintains roundness, prevents deformation and lays a foundation for subsequent fiber braiding. |
|
4. Precision Fiber Braiding Reinforcement |
Professional braiding machines wind high-tensile polyester fiber yarns evenly and tightly around the cooled inner tube to form a dense reinforcement layer. This core process greatly improves the hose's pressure resistance and explosion-proof performance, avoiding expansion and burst under high pressure. |
|
5. Drying & Preheating Treatment |
The braided semi-finished hose passes through a constant-temperature oven to remove surface moisture and preheat the fiber layer. This effectively enhances the bonding fastness between the fiber layer and the outer PVC layer to prevent delamination. |
|
6. Outer Layer Extrusion Coating |
The second extruder uniformly coats high-quality PVC materials on the surface of the fiber reinforcement layer to form a wear-resistant and anti-aging outer protective layer. The outer layer isolates external abrasion, corrosion and ultraviolet radiation. |
|
7. Secondary Cooling & Traction |
The fully molded hose undergoes secondary cooling and constant-speed traction through the traction unit. Stable traction speed ensures consistent hose thickness, uniform appearance and stable overall structure. |
|
8. Cutting, Winding & Packaging |
According to customer specification requirements, the automatic cutter performs fixed-length cutting, and the finished hoses are neatly wound and packaged. Standardized packaging facilitates transportation, storage and subsequent use. |
Why Standard Production Process Matters for PVC Hoses
Many low-quality PVC hoses on the market have problems such as easy delamination, poor pressure resistance, short service life and easy aging, which are mostly caused by non-standard production processes, uneven fiber braiding and insufficient cooling shaping. A complete and standardized production process can perfectly solve these pain points, endowing PVC hoses with high pressure resistance, wear resistance, corrosion resistance and long service life.
Hot Tags: pvc fibre enhancing soft pipe extrusion production line, China pvc fibre enhancing soft pipe extrusion production line manufacturers, suppliers, factory, pvc on line, pvc pipe machine line, HDPE Pipe Extrusion Line, PVC Soft Pipe Production Line, HDPE Large diameter Pipe Extrusion Line, UPVC Pipe Extrusion Line