The production process of PVC coated layflat hose usually includes the following main steps:
Raw material preparation
PVC resin: as the main base material, it provides the main structure of the hose.
Additives: such as stabilizers, fillers, softeners, etc., are used to adjust the performance and processing characteristics of PVC materials.
Mixing and extrusion
The PVC resin and various additives are mixed evenly according to a certain formula ratio. Then the mixed raw materials are extruded through an extruder to form a continuous PVC plastic pipe.
Plastic coating
Plastic coating is to pre-treat the extruded PVC pipe and then coat it with a coating machine. The coating is generally made of a specific PVC resin mixture. While this improves the wear and aging resistance as well as flexibility of the hose.
Cooling and shaping
After the PVC pipe is cooled by a cooling water tank or a cooling roller, it enters a shaping machine to fix the shape. The shaping machine usually has a corresponding mold. This ensures that the hose can reach the size and shape required by the design.
Cutting and packaging
After shaping, the hose is cut by a cutting machine in a certain length. The cut hose is inspected, packaged and marked for shipment.
Quality control is very important throughout the production process. Modern production equipment and technology are constantly developing, making the production of PVC coated hose more efficient and precise.