• Saturday, 23 May 2020

Cast flanges and forged flanges cast flange blanks have accurate shape and size, small processing capacity, and low cost, but casting defects (porosity, cracks, inclusions, because the flange replaces the forged cross-section during quenching and cooling, the cooling rate The thickness of the cross-section of different parts is different, and the cooling rate gradually decreases from the surface. The forged cross-section is the main reason for the inconsistency of the microstructure and mechanical properties of different parts; casting flange: irregular internal structure (such as cutting parts, streamlines) Smaller); forging is not easy to rust, forging shape, forging structure is compact, better than performance; if the forging process is not suitable, the grain size of the casting will be larger or uneven. The cost of forging is higher than the casting flange. The forging can withstand more than Higher shearing force and tension of the casting. The advantage of the forging is that the internal structure is uniform, and there are no harmful defects such as pores and inclusions inside the casting.