The stainless steel flange pipe fittings sold by Xi'an 304 stainless steel plate manufacturers have two more procedures for flaw detection and heat treatment than other pipe fittings in the manufacturing process. Other procedures are the same. Some flanges will be distorted after improper handling, which is not allowed. In addition, after pushing the head, the outer diameter of the front end is generally large, and the shaping is performed by a shaping die. Due to the existence of welds, non-destructive testing is required. Due to the existence of welding stress, heat treatment is also required.

Xi'an 304 stainless steel plate manufacturers have introduced a variety of processing methods for stainless steel flanges. Many also belong to the category of mechanical processing, and the most commonly used are stamping, forging, rolling, rolling, inflation, stretching, bending, and combined processing.

Stainless steel flange process explanation:

Roller method: Place the core check valve in the tube and press it with a roller for round edge processing.

Rolling method: Generally, no mandrel is used, which is suitable for the inner round edge of thick-walled pipes.

Bulging method: one is to place rubber in the tube and compress with a punch above to make the tube protrude; the other method is to use hydraulic inflation to fill the middle of the tube with liquid and use the liquid pressure to bulge the tube into the required shape This method is mostly used in the production of bellows like ours.

Forging method: The end or part of the pipe is extruded with a swaging machine to reduce the outer diameter of the electric butterfly valve. Common swaging machines include rotary, link and roller.

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