Forged flange and casting flange are two different technologies in the manufacturing process of flange. Each technology has its own characteristics. The flange manufacturer will choose according to the characteristics of different forging to produce high quality flange. . Next, Xiaobian introduces the difference between forged flange and casting flange.
Casting and forging are two different production processes of flanges. The production process of flanges is mainly divided into four types: forging, casting, cutting and rolling. Forging and casting are two of them.
Let's talk about the difference between forged flange and cast flange:
Casting flange, the shape of the blank is accurate, the processing volume is small, the cost is low, but there are casting defects (pores, cracks, inclusions); the internal flow of the casting is poor (if it is a cutting part, the streamline type is worse);
Forged flange generally has lower carbon content than cast flange and is not easy to rust. The forging is streamlined and the structure is relatively dense. The mechanical properties of tungsten steel reamer are better than casting. If the forging process is improper, the grain will be large or uneven, hardening crack phenomenon, forging The cost is higher than the casting flange. Forgings can withstand higher shear and tensile forces than castings.
The advantage of the casting is that it can produce a more complicated shape, and the cost is relatively low;
The advantage of the forging is that the internal structure is uniform, there are no harmful defects such as pores and inclusions in the casting; the forging process generally consists of the following steps, that is, selecting high-quality steel billet blanking, heating, forming, and forging cooling. Forging processes include free forging, die forging and film forging. At the time of production, different forging methods are selected according to the quality of the forgings and the number of production batches.