Butt Welding Ring Stainless Steel Stub Ends

Stainless steel flanging (loose flange) is often used when the medium temperature and pressure are not high and the medium corrosion performance is relatively strong. For example, when the material of the flange is made of low-grade carbon steel, the corrosion resistance of the external sealing ring can be achieved. When the material of the flange is made of low-grade stainless steel, for example, the sealing performance of the flange can be achieved.

Stainless steel flanging process:

Stainless steel flanging is a forming and processing method to stretch or compress the outer edge of the workpiece to make a vertical edge with small height. It is divided into convex curve flanging and concave curve flanging. The deformation property and stress state of convex curve flanging are similar to shallow drawing, and the deformation degree is expressed by KFB = R / R0; The flanging deformation degree of concave curve is expressed by flanging coefficient KFB = R0 / (R0 + b). When the center angle of curve a ≤ 180 °, KFB = kfka / 180 ° (the flanging coefficient KFK is selected according to the table below) α> At 180 °, KFB = KFK.