NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY
Type: Exhaust System, Windscreen Wiper System
Muffler Type: Rear Muffler
Surface Finish: TUMBLING, Electrophoresis Coating
Cavity Number: 1
Packaging: carton, PE pallet
Place of Origin: NINGBO
Supply Ability: 50000/MONTH
HS Code: 7616991090
In Die Casting process, The Decorative pattern problem should be considered.
Features: smooth stripes, casting presents on the surface visible to the naked eye, but with the hand feel, color is different from the base metal lines, the removal of 0# can slightly wipe cloth.
1, filling too fast.
2, too much paint.
3, the mold temperature is low.
1, reduce the injection speed as much as possible.
2, coating dosage is thin and even.
3, improve the mold temperature.
The part has requirement of surface finish of E-Coating, which has process of curing in hot thermal oven, the temperature usually be up to 170-200 degree, the porosity mentioned above will expand and get out from the part, result in pits and bubbles on the coating. So for the first article inspection, the operator of die casting work shop and the QC inspector will fracture the part to confirm the status of the section view, to judge if the density is enough or not. The inspector also will make a record of the part weight, then, during routine inspection, they will just need to weigh the part to see if the part weight is offset the standard weight too much, if so, fracture again to look into the section. By such prevention action, the parts can be avoided batches scrap during outsourced e-coating.
Cavity Number: 1
Process Technology: High pressure die casting, Cold Chamber
Product Dimensions: Customized
Casting General Tolerance: Grade GB-CT4
Surface Finish: Polishing, Vibratory Deburring
Flow Processes: Die casting, Degating, Deburring to remove the flash around the ejector pins, Polishing to remove the parting line, Tumbling to make the part appearance more consistency, High Precision CNC Lathe Machining, E-coating, Cleaning, Packaging, Shipping
Control Measure: Incoming Material Test, First Article inspection, Routing inspection, Final item inspection, and Outgoing quality control
Inspection Equipment: CMM, Caliper, Plug Gage, Screw Gauge
Application: Auto Parts
Lead Time: 30-35 days
Trade Term: FOB Ningbo
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