What factors affect the quality of ductile iron pipes?

The production process can be divided into two stages: during production and during post-processing.

During production, the wall thickness of the cast iron pipes produced is uneven, resulting in substandard product quality. During use, the thin areas are prone to deformation and leakage.

During the post-processing heat treatment and forming process, if the heat treatment is not performed properly, it can result in excessive hardness.