Air pipe production line five line processing blanking need to pay attention to what factors

The air duct production line five line processing blanking must be careful, to understand the relevant factors, for the later work is quite beneficial.

Note the dimensions of ducts and fittings with thick plates. Rectangular ducts shall be calculated with outer dimensions, while circular ducts shall be calculated with outer diameter dimensions. The thin steel plate, zinc plate or aluminum plate or stainless steel plate used in the ventilation pipe are generally within the range of 0. 5-2 mm in thickness. Unfolds the size effect is very small, so can be neglected when open loft. But for the special requirement of thick wall pipe and components, and its wall thickness is greater than 2 mm, need to consider the influence of wall thickness. The blanking for circular duct, to calculate the diameter should be in size (diameter reduced wall thickness or inner diameter and wall thickness) shall prevail. For rectangular duct, still outside the duct size calculation.

The key link in the blanking is to make a good allowance for the bite and assembly flange. When carrying out the blanking of the sheet air duct, pipe fittings and components, it is necessary to consider the connection mode of the sheet and whether the interface of the air nozzle, pipe fittings and components is assembled with flange, so as to leave certain margin when blanking is carried out.