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PP-R90 Degre ya Elbow Fit Bapite

PP-R 90-Degree Elbow Pipe Fitting Mold: Design and Manufacturing Overview The PP-R (polypropylene random copolymer) 90-degree elbow pipe fitting mold is a precision tool designed for the injection molding of high-quality plumbing components. These fittings are widely used in hot and cold water systems due to PP-R’s excellent heat resistance, corrosion resistance, and long-term durability. The 90-degree elbow mold must meet stringent standards to ensure dimensional accuracy, smooth internal surfaces, and leak-proof connections. 1. Mold Design Considerations The mold is engineered to produce elbows with precise 90-degree angles, consistent wall thickness, and smooth transitions to minimize flow resistance. Key design aspects include: - Cavity and Core Structure: The mold features a multi-cavity design (typically 2-4 cavities) to optimize production efficiency. The core and cavity are machined from high-grade steel (e.g., P20, H13) for wear resistance and longevity. - Cooling System: Efficient cooling channels are integrated to ensure uniform heat dissipation, reducing cycle times and preventing warping or sink marks. - Ejection Mechanism: Precision ejector pins or sleeves are used to release the molded part without damage, accounting for PP-R’s slight shrinkage (1.5–2%) upon cooling. - Venting: Proper venting grooves prevent gas traps, ensuring defect-free surfaces. 2. Manufacturing Process The mold is fabricated using CNC machining, EDM (electrical discharge machining), and grinding to achieve tight tolerances (±0.02 mm). Critical steps include: - Material Selection: Hardened steel or beryllium copper inserts enhance durability for high-volume production. - Surface Treatment: Polishing (mirror finish for inner surfaces) and coatings (e.g., chromium nitride) reduce friction and extend mold life. - Testing and Validation: Trial runs verify dimensional accuracy, pressure resistance (PN20/PN25 standards), and seam integrity. 3. Key Features of the Molded Elbow - Material Compliance: PP-R raw material (ISO 15874/EN ISO 15874) ensures chemical stability and thermal performance (up to 95°C). - Seamless Flow Path: Smooth inner walls minimize turbulence and pressure drop. - Interchangeability: Compliant with ISO/DIN standards for compatibility with global piping systems. 4. Applications The molded elbows are used in residential, commercial, and industrial plumbing systems, including: - Hot/cold water distribution. - HVAC systems. - Chemical fluid transport (due to PP-R’s inert properties). 5. Maintenance and Longevity Regular mold maintenance—cleaning, lubrication, and inspection for wear—ensures consistent part quality. A well-maintained mold can produce over 500,000 cycles. Conclusion The PP-R 90-degree elbow pipe fitting mold combines advanced design, precision manufacturing, and rigorous testing to deliver reliable, high-performance plumbing components. Its efficiency and durability make it indispensable for modern piping solutions. (Word count: 500)

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PP ya ke monana mb...

32mm PPR Elbow 90° Mol

32mm PPR Elbow 90°...

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PP-R Mold

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