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Stainless Steel vacuum Insulated Water Bottle Production Process

The thermos cup is simply a cup that can keep warm. Generally, it is a water-filled container made of ceramic or stainless steel to form a vacuum layer. The top has a lid to keep the seal is tight. The vacuum insulated layer can delay the heat dissipation of the water or other drinks to achieve the purpose of heat preservation. At present, the general production process of stainless steel vacuum flasks is included as follows.
Outer layer processing flow;
Inner layer processing flow;
Outer layer and inner layer assembly process.

First, the outer layer processing flow
Outer pipe picking - cutting pipe - bulging - segmentation - bulging - rolling middle angle - shrinking bottom - cutting bottom – pouching rib - flatting upper mouth - punching bottom - flatting bottom - cleaning and drying - inspection - qualified shell

Second, the inner layer processing flow
Inner pipe picking - cutting pipe - flatting pipe - bulging - rolling upper corner - flatting upper mouth - flatting bottom mouth - rolling thread - cleaning and drying - inspection - butt welding – water leaking test - drying - qualified inner body.


Third, the outer shell and inner shell assembly process
Matching cup mouth - welding mouth - pressing middle bottom - welding bottom - inspection welding bottom - spot welding the getter for middle bottom - vacuuming – temperature checking - electrolysis - polishing – temperature checking - inspection polishing – pressing outer bottom – paint spraying – spot checking for the temperature - spray paint inspection- silk screen - packaging - finished product storage

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