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Six Methods And Specific Operating Procedures For Processing Spiral Steel Pipe

Jan. 31, 2019

Today Spiral Steel Pipe China Wholesaler introduces you to six methods and specific processes for processing Spiral Steel Pipe.

First, thermal expansion method

Bulging method

One is to place rubber in the tube, and the upper part is compressed by a punch to make the tube convexly formed; the other method is to form a hydraulic bulge, fill the middle of the tube with liquid, and the liquid pressure drums the tube into a desired shape, the bellows Most of the production is used in this way.

2. Forging method

The end or part of the pipe is punched out by a swaging machine to reduce the outer diameter. The common type forging machine has a rotary type, a link type and a roller type.

3. Bending forming method

There are three methods that are more commonly used. One method is called stretching method, the other method is pressing method, the third roller method, there are 3-4 rollers, two fixed rollers, one adjusting roller, adjusting fixed roller pitch, and finished pipe fittings. It is curved.

4. Stamping method

The tube ends are expanded to the required size and shape with a tapered core on the press.

5. Rolling method

Generally, the mandrel is not used, and it is suitable for the inner edge of the thick-walled tube.

6. Roller method

The core is placed in the tube, and the outer circumference is pressed by a roller for round edge processing.

Second, anti-corrosion method

This type of steel pipe is often referred to as Anti Corrosion Steel Pipeline. This processing method refers to the application of chemical coating on the surface and inner layer of spiral steel pipe. Common anti-corrosion forms include 3pe anti-corrosion, epoxy resin anti-corrosion, cement mortar anti-corrosion, ipn8710 Anti-corrosion, the biggest purpose of this processing method is to extend the service life of the pipeline.


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