UPVC 87.5° Elbow Pipe Fitting Mold: Technical Description The UPVC 87.5° elbow pipe fitting mold is a precision-engineered tool designed for manufacturing durable and leak-proof elbow connectors used in piping systems. This mold produces fittings that facilitate smooth directional changes in pipelines, ensuring efficient fluid or gas flow with minimal pressure loss. The 87.5° angle is a specialized design, often preferred for specific installation requirements where standard 90° or 45° elbows are unsuitable. 1. Material & Construction The mold is typically made from high-grade steel (e.g., P20, H13, or S136) to withstand high-pressure injection molding cycles and resist wear. Critical components like the cavity, core, and sliders are hardened and polished to ensure smooth demolding and extended service life. The mold structure includes cooling channels to regulate temperature during UPVC injection, preventing defects like warping or sink marks. 2. Design Features - Precision Angle: The 87.5° bend is machined with tight tolerances (±0.1°) to ensure consistency in fitting geometry. - Multi-Cavity Options: Depending on production needs, the mold may feature single or multiple cavities to optimize output. - Ejection System: Automated ejector pins or plates facilitate smooth removal of finished fittings without damage. - Ventilation: Strategically placed vents prevent air traps during injection, reducing voids or burns in the final product. 3. Manufacturing Process UPVC granules are melted and injected into the mold under high pressure. The material fills the cavity, taking the shape of the elbow. After cooling, the mold opens, and the fitting is ejected. Post-processing (e.g., deburring) may be required to meet quality standards. 4. Quality & Performance - Pressure Resistance: The molded fittings comply with ISO 1452 or ASTM D2466 standards, ensuring suitability for pressurized systems. - Corrosion Resistance: UPVC’s inherent properties, combined with precise molding, guarantee longevity in aggressive environments. - Leak-Proof Joints: The smooth interior surface and accurate angle minimize turbulence and ensure secure solvent-welded connections. 5. Applications These fittings are widely used in plumbing, irrigation, chemical processing, and industrial piping systems where directional changes are required. The 87.5° angle offers a balance between 90° and 45° elbows, reducing stress on pipelines in unique layouts. 6. Advantages of the Mold - High Durability: Robust steel construction ensures long-term use with minimal maintenance. - Energy Efficiency: Optimized cooling channels reduce cycle time and energy consumption. - Customization: Adjustable inserts allow for minor design modifications (e.g., adding ribs or markings). In summary, the UPVC 87.5° elbow pipe fitting mold is a critical tool for producing reliable, high-performance fittings. Its precision engineering ensures dimensional accuracy, repeatability, and cost-effectiveness in large-scale production, meeting the demands of modern piping infrastructure.