How are lean pipe connectors produced?

The production process of lean pipe connectors varies depending on the product type (such as first generation steel plastic composite, second-generation stainless steel/chrome plated, third-generation aluminum alloy), but the core steps include material preparation, forming processing, surface treatment, and assembly testing. The following is an overview of the process based on common industrial practices, among which the first generation of steel plastic composite connectors have a more representative process due to their low cost and wide application.

Material preparation and forming processing: The forming processing of connecting parts adopts corresponding processes according to different materials: Steel plastic composite parts are made of cold-rolled steel plates or SPCC steel as raw materials, and are formed into basic shapes through metal forming processes such as stamping and bending; Aluminum alloy parts are processed by die casting or CNC machining to ensure lightweight and precision; Stainless steel parts may involve welding or machining.
Surface treatment and plastic coating process: For steel plastic composite parts, the inner wall of the steel pipe is coated with anti rust coating (such as epoxy resin), and the outer surface is adhered with PE, PVC or ABS plastic layer through thermoplastic bonding process to form a steel plastic composite structure; Stainless steel parts may be plated or chrome plated to enhance corrosion resistance; Aluminum alloy parts achieve anti-corrosion and aesthetic effects through anodizing.
Assembly and quality control: The assembly of connectors and wire rod fittings relies on standardized interfaces, and modular connections are achieved through quick fasteners such as bolts, buckles, or E-KEY; Quality control runs through the entire process, including material inspection, dimensional tolerance testing (such as wire rod diameter of 27.8mm ± 0.2mm), coating adhesion testing, and load verification (such as horizontal bearing capacity of 30kg/600mm), to ensure compliance with ISO9000 and other standards.