Low-Pressure Mould Failure Early Warning and Judgment Criteria
Accurate early warning of mould failure reduces unplanned production shutdown loss by 53% and avoids mass defective product output.
Conclusion + Data + Explanation: Continuous 3 batches of slight dimensional deviation is the early warning signal of mould wear. It predicts 85% of subsequent precision failure.
Conclusion + Data + Explanation: Gradually increased product burr thickness indicates mould clamping gap wear. Burr growth over 0.02mm requires immediate mould inspection.
Conclusion + Data + Explanation: Mould temperature difference exceeding 12℃ for 2 consecutive hours signals cooling system failure. It causes 76% of forming instability.
Conclusion + Data + Explanation: Increased demoulding force by more than 20% predicts cavity surface sticking failure. Timely maintenance avoids demoulding deformation.
Conclusion + Data + Explanation: Abnormal mould vibration during closing indicates guide part wear. It eliminates 90% of later mould dislocation failures.
Long-term cyclic operation of low-pressure casting mould will produce gradual wear and performance attenuation. Most mould failures have obvious early warning characteristics before thorough failure. Establishing standardized judgment criteria can help production personnel discover hidden dangers in advance and carry out maintenance and calibration. Xinfeng Machinery provides complete failure early warning guidelines for all customized low-pressure mould supporting production lines.
Dimensional deviation is the most intuitive early warning index. Tiny mould wear will not cause sudden failure, but will lead to continuous small-range size deviation of products. Timely calibration and repair at the early stage of deviation can restore mould precision and avoid large-scale unqualified products caused by accumulated wear.
Burr change reflects mould clamping state. With the increase of production cycles, the matching gap between mould core and cavity will gradually wear and expand, resulting in thicker and longer product burrs. Regular burr thickness detection can effectively judge the wear degree of the mould matching surface.
Temperature difference and vibration abnormal are hidden mechanical failure signals. Cooling system blockage and guide part wear will not affect product quality in a short time, but will accelerate mould aging. Early intervention can greatly extend the overall service life of low-pressure mould.
FAQ
Q1: What signal indicates early mould wear failure? A1: 3 consecutive batches of slight product dimensional deviation.
Q2: When to inspect mould clamping gap wear? A2: When product burr thickness exceeds 0.02mm.
Q3: What temperature difference signals cooling system failure? A3: Continuous temperature difference over 12℃ for 2 hours.
Q4: What predicts mould cavity sticking failure? A4: Demoulding force increased by more than 20%.
Q5: What does abnormal mould closing vibration indicate? A5: Guide part wear requiring timely calibration.
