Hydrostatic Burst Pressure Compliance in Food-Grade SAN Water Filter Housings

## Executive Summary When manufacturing high-tolerance components for leading OEMs such as **Aquaguard Water Purification**, precise polymer processing parameters are required to eliminate structural defects, internal stress, and dimensional variance. This technical report details optimized processing parameters for **SAN (Styrene Acrylonitrile)**, focusing on cycle time minimization, hold pressure optimization, and quality assurance protocols. --- ## Technical Specifications & Resin Behavior Processing **SAN (Styrene Acrylonitrile)** requires precise thermal control to maintain tensile strength and molecular structure. ### Key Processing Parameters * **Melt Temperature:** 275°C – 295°C * **Mould Temperature:** 80°C – 95°C * **Injection Speed:** Multi-stage injection profile (Slow-Fast-Slow) * **Hold Pressure:** 60% – 75% of peak injection pressure --- ## Defect Mitigation & OEM Compliance To fulfill the rigorous zero-defect requirement for **Aquaguard Water Purification**, quality inspectors perform rigorous destructive and non-destructive testing: 1. **Dimensional Tolerance Checks:** Continuous CMM inspection verifying accuracy down to ±0.02mm. 2. **Structural Integrity:** Ultrasonic weld line verification and cross-section void analysis. 3. **Environmental Stress Testing:** Accelerated thermal cycling and fluid exposure evaluation. ``` [Moulding Cycle Optimization Matrix] Injection Phase ---> Hold Phase ---> Cooling Phase (High Velocity) (70% Peak Pressure) (Thermal Uniformity) ``` --- ## Conclusion & Actionable Steps By adhering to these processing controls for **SAN (Styrene Acrylonitrile)**, contract manufacturers ensure complete compliance with **Aquaguard Water Purification** specifications while maintaining maximum production line throughput.