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Injection Mold Measurement & Metrology System
The following is a professional classification table of injection mold measurement and metrology, covering key concepts, measurement objects, tools, and standards.
Injection Mold Measurement & Metrology System Classification Table |
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| Measurement Dimension | Measurement Object | Measurement Tools/Techniques | Metrology Standards | Key Parameters | Application Significance |
| Dimensional Measurement | Cavity/core dimensions | CMM, Laser scanners | ISO 286 (Dimensional tolerances) | Length/width/depth tolerance (±0.01mm) | Ensures part geometric accuracy |
| Geometric Tolerance | Concentricity/flatness/roundness | Roundness testers, Optical comparators | ASME Y14.5 (GD&T) | Runout (≤0.02mm) | Prevents assembly interference |
| Surface Roughness | Mold cavity surface | Contact profilometers, White light interferometers | ISO 4287 (Ra/Rz) | Ra 0.1~1.6μm | Affects demolding and appearance |
| Temperature Distribution | Hot runner/cooling system | IR thermal cameras, Embedded thermocouples | ASTM E1256 (Thermal imaging calibration) | Temperature variation control (±2°C) | Prevents warpage and sink marks |
| Pressure Monitoring | Injection/holding pressure | Piezoelectric sensors, Pressure transmitters | ISO 4378 (Pressure calibration) | Peak pressure (50-200MPa) | Optimizes process parameters |
| Wear Analysis | Ejector/slider wear | Microhardness testers, Profilometers | ISO 6507 (Hardness testing) | Wear depth (≤0.05mm/100k cycles) | Predicts mold lifespan |
| Optical Inspection | Optical distortion in transparent parts | Transmission optical platforms, CCD imaging systems | ISO 10110 (Optical defects classification) | Streak/bubble defect grades | Ensures optical performance |
| Dynamic Performance | Mold opening/closing parallelism | Laser trackers, High-speed cameras | VDI/VDE 2617 (Dynamic accuracy) | Parallelism deviation (≤0.03mm) | Reduces flash and wear |
| Material Metrology | Plastic shrinkage rate | Constant temp/humidity chambers, Micrometers | ISO 294-4 (Shrinkage test) | Linear shrinkage (0.2%-2.5%) | Compensates mold design |
| Microstructure | Mold steel grain size | Metallographic microscopes, SEM | ASTM E112 (Grain size rating) | Grain size level (8-12) | Evaluates heat treatment effects |
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