Collapsible Tee Pipe Fitting Mould: Design and Functionality A collapsible tee pipe fitting mould is a specialized tool used in the injection moulding process to manufacture tee-shaped pipe fittings with collapsible features. These fittings are widely used in plumbing, irrigation, and industrial piping systems, allowing for easy assembly, disassembly, or adjustment in confined spaces. The mould must be precisely engineered to ensure dimensional accuracy, durability, and efficient production. Key Features of the Mould 1. Modular Design The mould is designed with collapsible or retractable cores that enable the formation of the tee’s intersecting branches. These cores can be mechanically or hydraulically actuated to retract after the plastic has cooled, allowing for easy ejection of the finished fitting without damaging the part. 2. High-Precision Cavities The mould cavities are CNC-machined to tight tolerances, ensuring consistent wall thickness and smooth internal surfaces. This prevents defects like warping, sink marks, or flash, which could compromise the fitting’s sealing performance. 3. Durable Materials The mould is typically made from hardened tool steel or beryllium copper to withstand high injection pressures and prolonged use. Critical components like sliders and ejector pins are heat-treated for wear resistance. 4. Cooling System Optimization Efficient cooling channels are integrated into the mould design to reduce cycle times. Uniform cooling prevents uneven shrinkage, ensuring the tee fitting maintains its geometric integrity. 5. Ejection Mechanism A well-designed ejection system, including pins or sleeves, ensures the collapsible tee is cleanly released without sticking. The mechanism must align perfectly with the mould’s retractable cores to avoid part deformation. Manufacturing Process The mould is mounted in an injection moulding machine, where molten plastic (e.g., PVC, PP, or ABS) is injected under high pressure. After filling the cavities, the collapsible cores retract, and the mould opens for part ejection. Post-processing, such as deburring or threading, may be required depending on the fitting’s application. Applications Collapsible tee fittings are essential in systems requiring frequent modifications, such as temporary plumbing setups, agricultural irrigation, or HVAC ducts. The mould’s design directly impacts the fitting’s leak-proof performance and ease of installation. Conclusion A well-engineered collapsible tee pipe fitting mould ensures high productivity, part consistency, and longevity. Its advanced features, including retractable cores and precision cooling, make it indispensable for producing reliable pipe fittings for diverse industries.