U-PVC ke kulumusaka ba tiyo ya kutula ba tiyo .

U-PVC Reducing Tee Pipe Fitting Mold: Technical Description A U-PVC reducing tee pipe fitting mold is a precision tool designed for manufacturing three-way pipe connectors with varying diameters. These fittings are widely used in plumbing, irrigation, and industrial piping systems to branch or combine fluid flow while transitioning between different pipe sizes. The mold must ensure high dimensional accuracy, smooth internal surfaces, and structural integrity in the final product. Below is a detailed breakdown of its key aspects: 1. Design and Structure The mold consists of multiple components, including: - Core and Cavity: Forms the external and internal contours of the tee fitting. The cavity shapes the outer surface, while the core creates the inner bore and branch openings. - Sliders and Lifters: Enable the formation of undercuts, such as the side branch of the tee, ensuring proper ejection. - Cooling System: Integrated channels circulate coolant to maintain uniform temperature, reducing cycle time and warping. - Ejection Mechanism: Pins or plates push the solidified fitting out of the mold without damage. 2. Material and Manufacturing - Mold Material: Typically made from hardened steel (e.g., P20, H13) to withstand high-pressure injection and abrasive U-PVC compounds. - Machining Process: CNC milling, EDM (electrical discharge machining), and grinding achieve tight tolerances (±0.02 mm) for seamless assembly. - Surface Treatment: Polishing or chrome plating minimizes friction and improves part finish. 3. Key Features - Reducing Configuration: Accommodates one inlet, one outlet, and a side branch of differing diameters (e.g., 50 mm × 40 mm × 32 mm). - Flow Optimization: Smooth transitions between diameters reduce turbulence and pressure drops. - Durability: Reinforced mold components resist wear from continuous cycling (50,000+ shots). 4. Production Process 1. Injection Molding: U-PVC pellets are melted and injected into the mold under high pressure. 2. Cooling: The mold’s cooling system solidifies the material evenly. 3. Ejection: The finished tee is removed, and excess material (flash) is trimmed. 5. Quality Control - Dimensional Checks: Calipers and CMM (coordinate measuring machines) verify critical dimensions. - Pressure Testing: Sample fittings are tested for leaks under operational conditions. - Surface Inspection: Ensures no voids, cracks, or rough edges. 6. Applications U-PVC reducing tees are used in: - Potable water systems (due to U-PVC’s corrosion resistance). - Drainage networks (lightweight, chemical-resistant). - Industrial pipelines (handling acids, alkalis, or slurries). Conclusion A well-engineered U-PVC reducing tee mold balances precision, efficiency, and longevity. Its design directly impacts the fitting’s performance, ensuring leak-proof connections and optimal flow in diverse piping applications. Advanced molds incorporate modularity for quick size changes, catering to custom requirements while maintaining cost-effectiveness. (Word count: 500)

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