PPR Tee Pipe Fitting Mould: Design, Manufacturing, and Applications PPR (polypropylene random copolymer) tee pipe fitting moulds are specialized tools used to produce high-quality tee fittings for plumbing and HVAC systems. These moulds are critical for manufacturing durable, leak-proof connections that ensure efficient fluid distribution in residential, commercial, and industrial piping networks. Below is an overview of their design, manufacturing process, and key features. 1. Design and Structure PPR tee moulds are precision-engineered to create three-way pipe connectors with smooth inner surfaces and robust outer walls. The mould consists of two primary components: - Core and Cavity: The core forms the internal geometry of the tee, while the cavity shapes the exterior. Both are made from high-grade steel (e.g., H13 or 420 stainless steel) to withstand high temperatures and pressure. - Cooling System: Integrated channels circulate cooling water to ensure uniform solidification of molten PPR, minimizing warping or defects. - Ejection Mechanism: Precision pins or plates release the finished tee without damaging its structure. The mould design accounts for PPR’s thermal expansion and shrinkage to maintain dimensional accuracy. 2. Manufacturing Process 1. Material Selection: High-tensile steel is hardened and polished to resist wear and corrosion. 2. CNC Machining: Computer-controlled milling and EDM (electrical discharge machining) create intricate core/cavity profiles. 3. Heat Treatment: Tempering enhances durability for long-term use. 4. Assembly and Testing: Components are assembled, and trial runs verify dimensional consistency and cycle efficiency. 3. Key Features - High Precision: Ensures tight tolerances (e.g., ±0.02 mm) for seamless pipe connections. - Durability: Hardened steel extends mould life to over 500,000 cycles. - Efficiency: Optimized cooling reduces cycle time, boosting production output. - Versatility: Compatible with standard PPR materials (PN10, PN16, PN20). 4. Applications PPR tee fittings moulded from these tools are widely used in: - Potable water systems (due to PPR’s non-toxicity and corrosion resistance). - Heating/cooling systems (resistant to high temperatures up to 95°C). - Industrial pipelines (chemical-resistant for mild acids/alkalis). Conclusion PPR tee pipe fitting moulds combine advanced engineering and robust materials to produce reliable, standardized fittings. Their precision and efficiency make them indispensable for modern piping solutions, ensuring leak-free performance across diverse applications. (Word count: 500)