Brief introduced weld deformation mechanism between tank and flange. It also introduced how to control the deformation by cooling method.
简述缸体与法兰焊接变形机理，采取冷却方式控制变形量。
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Pump body has a hollow sandwich, with import and export of flange, can be used in the thermal oil, steam, hot water and other media for conveying liquid and heat insulation and cooling pump.
The existence of a flange at the periphery of the cooling plate also reduces the abrasion of the cooling plate, and prolongs the service life of the cooling plate.