How to make seamless elbow?

How to make seamless elbow?

Seamless elbow manufacturing process: in the processing of parts manufacturing, to meet the needs of architects and structural designers. All metals react with oxygen in the atmosphere and form oxide films on the surface. Seamless elbow manufacturers in the process of pushing elbow, under normal circumstances should not change the wall thickness, but if because of tool reasons, some places will occur wall reduction phenomenon, its advantages are widely recognized, we share the characteristics of stamping elbow.
Seamless elbow manufacturer long-term pressure function, only from the description of stress, national standard stamping elbow pressure function is the best. However, due to various factors, floor heating pipe 60 high pressure elbow or other specifications of high pressure elbow, this process is suitable for manufacturing high pressure elbow diameter and stamping elbow diameter ratio greater than 1.5 any specifications of large elbow.