The blank of the forged flange with coarse-grained ring is easy to crack during forging. If the coarse-grained ring is left on the surface of the forging, the performance of the forged flange will be reduced.
Shrinkage residue of forged flange
The shrinkage residue of forged flange is generally caused by the centralized shrinkage cavity generated in the riser of ingot is not removed completely, and it remains in the steel of forged flange during blank opening and rolling.
Dense inclusions, porosity or segregation will generally appear in the area near the shrinkage residue of forged flanges. There is an irregular wrinkled gap in the transverse magnification of the forged flange. It is easy to cause cracking of forged flange during forging or heat treatment.
In addition to the defects of raw materials of forged flanges, the defects of forged flanges will also occur if they are not properly prepared in the corresponding production plant. We will explain the defects of forged flanges in the preparation process another day.
However, in any case, it shows that when customers choose to purchase forged flanges, it is particularly important to choose the appropriate forged flange manufacturers who are responsible for the production. The forged flanges professionally produced by Shanxi Haokun flange Group Co., Ltd. will not have defects in the process of purchasing raw materials, resulting in defects in the production of forged flanges.
