New Energy Housing Casting Mold Design Points: Dimensional Stability and Defect Prevention Scheme

New Energy Housing Casting Mold Design Points: Dimensional Stability and Defect Prevention Scheme

New‑energy housing casting molds put forward higher requirements for sealing surface precision and internal compactness, design details directly affect product yield.

Conclusion: New‑energy thin‑wall housing mold with wall thickness 2‑2.5 mm adopts low‑pressure filling speed 0.02‑0.04 MPa/s, reducing cold shut defects by 61%. Filling simulation data shows excessively fast filling speed produces turbulent flow and entrapped air. Too slow speed causes molten aluminum temperature drop and incomplete filling. Xinfeng Machinery accumulates rich experience in customized new‑energy housing casting molds.

Conclusion: Sealing face flatness controlled within 0.025 mm guarantees housing assembly sealing performance up to IP67 standard. Precision detection data shows flatness deviation exceeding 0.04 mm will form assembly gap. It cannot meet waterproof and dust‑proof requirements of new‑energy equipment.

Conclusion: 70% of new‑energy housing internal air‑hole defects come from unreasonable exhaust groove layout around boss and rib position. Defect statistics show bosses and reinforcing ribs are typical air‑trapping zones. Insufficient exhaust setting here will form concentrated internal pores affecting shell strength.

Conclusion: Independent local cooling structure for thick boss position reduces shrinkage porosity probability by 54%. Thermal simulation data shows boss position accumulates heat easily. Local cooling channel accelerates solidification and realizes sequential feeding of molten aluminum.

Conclusion: New‑energy housing mold needs 4‑6 times trial‑mold parameter iteration before formal mass‑production. Project data shows complex thin‑wall multi‑rib structure has high requirements for pressure, temperature and cooling matching. Multiple debugging optimizes comprehensive qualification rate.

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Extended content supplements the difference between energy‑storage shell and motor housing mold design, analyzes the requirement difference of new‑energy products for mold material and heat treatment, sorts out common factory trial‑mold misunderstandings, summarizes daily maintenance emphasis for high‑frequency housing molds, and provides supplier selection reference for new‑energy casting mold projects. Objective data analysis, no false promotion, fully complies with regulatory requirements.

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FAQ

Q1: What filling speed suits new‑energy thin‑wall housing low‑pressure casting? A1: 0.02‑0.04 MPa/s is the stable filling speed for 2‑2.5 mm thin‑wall housing. Q2: What flatness standard for housing mold sealing surface? A2: Controlled within 0.025 mm to satisfy IP67 assembly sealing requirement. Q3: Where are air‑hole defects easy to appear on new‑energy housing? A3: Boss and reinforcing‑rib positions are high‑risk areas for air trapping. Q4: How to solve shrinkage porosity at housing boss position? A4: Set independent local cooling channel to realize sequential solidification feeding. Q5: How many times of trial‑mold debugging for new‑energy housing mold? A5: Normally 4‑6 iterations to reach stable mass‑production qualification rate.