The best scale for carbon steel flanges

The internal arrangement of cast carbon steel flanges is loose and uneven, and the strength and quality are difficult to be ensured. The forging type has many consumables, high energy consumption, high cost, and the stress on the disc and neck intersection is concentrated and affects the strength. Roll forming prevents the above problems. The hole pattern is planned because the flange is in the process of rolling and the continuous rolling process is carried out in one hole type.

Therefore, the hole type is based on the external summary of the experimental target. In order to facilitate the metal activity and prevent the partial stress accumulation phenomenon, the intersection of the neck discs is planned to be arc-shaped; in order to prevent the metal from being clamped in the deformation, the groove plan in the hole type must have a certain inclination. The rolling forming of the blank planning flange is closely related to the planning of the blank. Different types have different scale planning.

So far, no confirmation formula has been found to calculate the dimensions of the flange blank. From the material point of view, the rough plan of the rolling stock with the same profile cross-section ring as the flange is mostly based on the previous experience or the approximate cross-section product plan to give the rough shape of the blank. After the test machine and the correction, the blank is confirmed. The best scale.