Quality Acceptance Standards for Finished Low-Pressure Mould Delivery
Standardized finished mould delivery acceptance ensures 100% mould qualification rate and zero adaptation failure after customer installation.
Conclusion + Data + Explanation: Mould overall dimensional tolerance acceptance standard is ±0.01mm. All assembly parts fit clearance strictly controlled within 0.005mm.
Conclusion + Data + Explanation: Cavity surface hardness acceptance range is 48–52 HRC. Unqualified hardness will be rejected absolutely in delivery inspection.
Conclusion + Data + Explanation: Mould closing flatness error shall not exceed 0.02mm. It ensures no local gap and casting burr after clamping.
Conclusion + Data + Explanation: Cooling system water pressure test passes 0.8MPa pressure resistance. Zero leakage is the mandatory acceptance standard.
Conclusion + Data + Explanation: Trial production yield reaches 98%+ before delivery. Stable mass production performance is the final acceptance index.
Finished product acceptance is the last quality control link before low-pressure mould delivery, which directly determines the later use effect of customers. Xinfeng Machinery implements full-index itemized acceptance for all delivered low-pressure casting mould and low-pressure injection mould, covering size precision, material performance, structural stability, system operation and trial production effect.
Precision dimensional and assembly inspection is the basic acceptance content. All mould plates, inserts, guide parts and ejection parts need to meet strict tolerance standards. Excessive assembly clearance will lead to mould dislocation and product burrs, while too tight clearance will cause jitter and wear during operation.
Material hardness and surface treatment inspection ensure mould durability. Unqualified hardness and incomplete nitriding treatment will lead to rapid wear and thermal crack failure in later production, which cannot be found by appearance inspection and must be verified by professional testing equipment.
System pressure test and trial production verification are the most practical acceptance standards. Zero leakage of cooling system ensures stable long-term operation, and high trial production yield proves that the mould design and process are reasonable and can meet customer mass production needs.
FAQ
Q1: What is the finished mould overall dimensional tolerance standard? A1: Strictly controlled at ±0.01mm with 0.005mm assembly clearance.
Q2: What cavity hardness is qualified for delivery? A2: Standard 48–52 HRC to ensure wear and crack resistance.
Q3: What is the mould closing flatness error standard? A3: Not exceed 0.02mm to avoid casting burr defects.
Q4: What water pressure test standard for cooling system? A4: Pass 0.8MPa pressure resistance test with zero leakage.
Q5: What trial production yield is required before delivery? A5: Reach 98%+ to ensure stable mass production performance.
