Seamless Pipe Fittings Mandrel Hot Forming 90 Degree A234 WPB 90 Induction Heating Technic

Mandrel Hot Forming A234 WPB 90 Degree Seamless Pipe Fittings

Product Description:

carbon steel elbow is belongs to one type of pipe fittings which is used into the gas line , oil line for base construction which is important in the whole transport line . Carbon steel elbow have many type: butt-weld type .socket -weld type and etc. In my company we are mainly working on the Butt Welded pipe fitting . Every month have exported more than 50 containers carbon steel pipe fittings to all over the world. And we have got good feedback from our old customers and we built long terms relationship . Carbon steel elbow now is the most needed in all kind of pipe fittings.

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Seamless elbow forming method:

1. Forging and pressing method: stretch the end or part of the pipe with the forging machine, so as to reduce the outside diameter. Commonly used forging machines include rotary type, connecting rod type and roller type.

2. Rolling method: generally without mandrel, suitable for inner round edge of thick wall tube.The core is placed in the tube, and the roller is used for edge processing.

3. Stamping method: expand the tube end to the required size and shape with tapered core on the press.

4. Bending forming method: there are three methods commonly used, one method is called stretching method, another method is called stamping method, the third roller method, there are 3-4 rollers, two fixed rollers, an adjustment roller, adjust the fixed roller distance, the finished pipe is bent.

5. Bulking method: one is to place rubber inside the tube and compress it with punches to make the tube protruding and forming;Another method is hydraulic bulging, in which a liquid is filled in the middle of the tube, and the liquid pressure pushes the tube into the desired shape. This method is used in most of the production of bellows.

Summary of the advantages of seamless elbow

Seamless elbow has the following advantages: non-toxic health, light weight, good heat resistance, good corrosion resistance, good insulation, good impact resistance, long service life

1. Hygienic and non-toxic: the material is completely composed of carbon and hydrogen, without adding any toxic heavy metal salt stabilizer. The material's sanitary performance has passed the inspection by the state authority.

2. Light weight: the density of the stamping elbow is 0.89-0.91g/cm, only one tenth of that of the steel pipe.Because of light weight, can greatly reduce the cost of transportation and installation of the construction intensity.

3, good heat resistance: when the working water temperature is 70 degrees, the softening temperature is 140 degrees.

4, good corrosion resistance: except a few hydrogenation agents, can withstand the erosion of a variety of chemical media, with excellent acid resistance, alkali resistance, corrosion resistance, no rust, no corrosion, no breeding bacteria, no electrochemical corrosion.

5. High impact resistance: due to its unique impact strength and performance, the ring stiffness is 1.3 times of that of other solid wall tubes.

6, long service life: the tube in the rated service temperature and pressure, the service life of more than 50 years, with anti-uv, anti-radiation, so that the product will never fade.

Contact me:

Darcy Dong

Whatsapp/ Wechat: 008615630731167

Guozhong International Limited