NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY
Model No.: 130
Type: Muffler Assembly, Windscreen Wiper System
Muffler Type: Center Muffler
Surface Finish: TUMBLING, Electrophoresis Coating
Cavity Number: 2
Packaging: carton, PE pallet
Place of Origin: NINGBO
Supply Ability: 180000/MONTH
HS Code: 7616991090
Aluminum Die Casting Adjustable Spring Seat, this part is an adjustable spring seat, which is used on the chassis system, the carried Die Casting criterion is Grade GB-CT5, this part is produced as cast. And it has a feature of cam, requesting to meet specified developing curve, so when offered for this project, we spend much time to make investigation at the beginning, with the purpose of EDM the material of the mold correctly.
In addition, the part required surface finish of electrophoresis coating, in order to improve the appearance condition of the part, making all the parts more consistent, we choose to develop corresponding trim mold for removing the injection gate, slag trap, overflow gate and flash around the parting line.
As there is request of e-coating, so to control the density of the part is very important, if not dense, the part probably has porosity or void inside. For technology of e-coating, there is a process of curing the film in oven under about 170-200 degree. Because of thermal expansion, the air inside the part will expand to expose to the outer surface, leading to pits, bubbles, pin holes, which are all not acceptable in e-coating industry.
For this part, the permissible draft is only 1 degree, meanwhile, the internal cavity of the part is deep, which will cause problem of thermal stress accumulation easily, leading to hot tear, you know, the film thickness of e-coating is only 0.015-0.02 mm, so if there is crack on the outer surface, it will be visual obviously, what's more, in order to prolong the tooling life, we should maintain the tooling regularly. release the stress, nitride.
Cavity Number: 2
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, Vibratory Deburring to make the part 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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