永旺防水套管 - 防水套管引导者
Preparation of materials, waterproof casing materials include internal and external sheathing, glue, steel rope and so on. The inner and outer sheathing is generally made of polyammonia and ethylene (PVC), which is characterized by waterproof, anticorrosion and wear resistance. Different models and specifications can be selected according to different requirements.
Processing and manufacturing. The processing and manufacturing process of the inner sheath and the outer sheath are basically the same. The PVC pipe of the required length can be cut to the specified size first, and then the inner sheath can be plugged into the outer sheath, which can be firmly bonded by extrusion or mechanical pressure. The steel rope is wrapped outside the inner sheath, which plays a strengthening and fixing role. At the same time, the inner sheath is injected with glue to ensure the internal sealing.
quality testing. The made waterproof casing needs to go through quality inspection to ensure that its performance and quality meet the requirements. Conventional testing items include appearance quality, voltage intensity, flame retardancy, impact resistance and so on. After passing the inspection, the product can be packaged and transported.