Common sense analysis of stainless steel flange

The advantages of stainless steel slip on flange:

The first is to replace part of the machined products, and than the mechanical workpiece, casting, forging structural parts light weight, save materials; Second, it saves working procedures and working hours and reduces the cost of the workpiece.

Types of flanges：

There are many types of flanges, which can be summarized into the following main types: bending flanges, we contact more, is to change the straight pipe into a bend with different radius of curvature, such as elbow, elbow and so on; Change the section of the flange, according to the requirements, the circular section into square, oval, polygon and so on; Flanges with flanges and round flanges, the former refers to the stainless steel end convex to the inside or outside, the latter refers to the flange formed in the circumference of the pipe raised or groove;

Flange with variable wall thickness refers to the change of wall thickness along the length of stainless steel; With edge and bottom sealing flange of a class, increase the pipe’s overall strength to pipe the inner or outer edge or the flange end seal flange; Variable diameter flange, refers to the end of the pipe or a part of the pipe diameter decreases; Expanding flange, according to the requirements of the flange end or a part of the expansion to form a variety of shapes of the flange.

Flange processing method：

Flange processing methods are also many. Many also belong to the category of mechanical processing, the most used is stamping method, forging method, roller processing method, rolling method, bulging method, stretching method, bending method, and combined processing method. Flange machining is the organic combination of machining and metal pressure machining.

Common problems and solutions of processing and transportation neck flange:

Neck flange is divided into wire flange and welding flange, according to the material can be divided into 304,321,310 and so on, production standards are divided into international standards, American standards, German standards and so on. Flange made of stainless steel, including stainless steel elbow, stainless steel tee, stainless steel four, stainless steel reducing pipe, stainless steel pipe cap, etc.

Knowledge of processing and transportation:

Arc starting with neck flange multi-pass multi-layer welding using back welding method, arc should be filled with arc pit. Do not arc or arc on the base material surface of pipe and flange. In the arc or arc found holes, cracks and other defects should be dealt with clean.
The inside of the weld should be filled with argon during positioning welding.
Stainless steel cutting with neck flange cannot be cut with ordinary grinding wheel. Special grinding wheel or plasma should be used for cutting.
After welding, the flange should be pickled and passivated.

Common sense analysis of stainless steel flange