U-PVC Skew Cross Pipe Fitting Mold: Design and Functionality A U-PVC skew cross pipe fitting mold is a specialized tool used in the injection molding process to manufacture skew cross fittings for PVC piping systems. These fittings are essential for creating angled intersections in pipelines, allowing fluid or gas to flow smoothly in multiple directions. The mold must be precisely engineered to ensure dimensional accuracy, durability, and efficient production. Key Features of the Mold 1. Material and Construction The mold is typically made from high-grade steel, such as P20, H13, or stainless steel, to withstand high pressure and temperature during injection molding. The steel is hardened and polished to enhance wear resistance and extend the mold’s lifespan. 2. Precision Engineering The skew cross design requires exact angles (commonly 45° or 60°) to ensure proper alignment in piping systems. The mold cavities are CNC-machined to tight tolerances (±0.02mm) to guarantee consistency in wall thickness and fitting dimensions. 3. Cooling System An efficient cooling system is integrated into the mold to reduce cycle times. Copper or beryllium cooling channels are strategically placed to ensure uniform cooling, preventing warping or sink marks in the final product. 4. Ejection Mechanism The mold includes an automated ejection system (using pins or plates) to remove the molded fitting smoothly without damaging it. Proper ejection design minimizes production delays and defects. 5. Ventilation and Surface Finish Venting channels are incorporated to release trapped air during molding, preventing voids or burns. The mold surface is mirror-polished or textured to achieve the desired finish on the U-PVC fitting. Production Process The mold is installed in an injection molding machine where molten U-PVC is injected under high pressure. After cooling, the fitting is ejected, trimmed, and inspected for quality. The mold’s design ensures high repeatability, enabling mass production with minimal waste. Applications Skew cross fittings are widely used in plumbing, irrigation, and industrial piping systems where directional changes are needed. The mold’s accuracy ensures leak-proof connections and long-term performance. Conclusion A well-designed U-PVC skew cross pipe fitting mold is critical for producing high-quality, durable fittings efficiently. Its precision engineering, robust construction, and optimized cooling/ejection systems contribute to consistent output and cost-effective manufacturing.