spiral welded pipe mill
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The introduction of spiral welded pipe mill
The steel coils are unfolded and leveled by the millequipment. And they are sent to the forming machine in a certain angle.Supplemented by a certain angle, the continual pipes are formed in theprinciple of three-roll rolling machine. Continual spiral welding is welded bysubmerged-arc welding machine.
According to the different function of our products,the spiral welded pipe mills are divides in to API standard model, nationalstandard model and special purpose model. API standard model mainly producesthe delivery pipe with petroleum or natural gas (long distance).the materialand quality of the steel pipe need to be very good. The requirements for millequipment and testing equipment also are very high. National standard modelproduces the pipe used for short distance delivery of natural gas or water, thepipeline construction in the city, the structure pipe, column pipe and so on.The requirements for the material and quality of the steel also are very high,second only to that of API standard. Special purpose mill is used for somespecial purposes. For example, our company developed the special 60～214 mill aiming at the function of petroleum filter.
The specification of our products is fromΦ9 0 toΦ3500.The thickness of the wall is from 1mmto 25.4mm. The materialof our products is from Q235 to X80. Besides, special material such as thestainless steel is included. All of them cover all the mills.
- Q: A roll forming machine, rolling out of the length is always not up to a fixed size, not too small, that is, more than that, what is the cause?
- Maybe there is something wrong with that roller. It rolls out of the wrong angle and the size will be out of order.
- Q: What is rolling forming processing?
- A special rolling tool is used to exert certain pressure on the surface of the workpiece so as to make the surface metal flow.
- Q: Improvement in rolling forming process
- The rolling will produce a hardening layer on the surface of the workpiece. This layer has obvious delamination phenomenon with the internal material, which is easy to cause the surface layer to fall off;
- Q: Introduction of roll forming process
- Roll forming began around 1960s in europe. Because of roll forming, the working model has the advantages of high production efficiency, saving material and increasing product strength.
- Q: What kind of material and what heat treatment are used for pressing roller (molding, feeding, cutting force, heavy load, heavy load) of sheet steel rolling machine?
- Use 40Cr or 20Cr, Cr12.Cr12MoV, quenching and tempering treatment, think of hardness, high point, carburizing, nitriding, and consider adding lubrication device to extend its service life
- Q: What is the surface rolling forming machine process?
- Due to the rolling surface of metal plastic deformation, so that the surface microstructure of cold hardening and grain refinement, forming a dense fibrous, and the formation of residual stress, hardness and strength, so as to improve the surface wear resistance, corrosion resistance and compliance.
- Q: Process mould for rolling forming process
- Press forming is an advanced processing technology, and its remarkable characteristics have been paid attention to by the automobile industry at home and abroad.
- Q: Material and equipment for roll forming process
- Rolling process is a cold forging process, which can be used for rolling and forming a lot of materials. Among them, low carbon steel is a material commonly used in rolling forming, and non-ferrous metal is more suitable for roll forming.
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spiral welded pipe mill
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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