straight seam HF welded pipe mill
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The introduction ofstraight seam HF welded pipe mill
The plate in certain width afterslitting line and stripping is unfolded and bent into pipe state. The edge ofthe steel plate is melted by making use of the proximity effect and skin effectof high frequency current. Then, the plate is extruded and welded into the pipeby extruding roller. Straight seam welded pipe mill also is called ERW mill.
The forming styles of straightseam welded pipe can be divided into roll
forming，cage forming, flexible forming, full auto flexibleforming. The mill developed by our company adopts roll forming when havingsmall diameter （Φ≤114） The cageforming is adopted when having middle or small diameter （Φ≤165）. Full auto flexible forming is adoptedwhen having large diameter（Φ≤711）.
According to the productsfunctions, straight seam welded pipe mills are divided into API model, nationalstandard model.
API model mainly produces highlevel steel pipes, such as delivery pipe of petroleum and natural gas, oil wellcasing and so on. The requirements for material and quality are very strict.The mill is equipped with section equipment and technological equipment, suchas IF annealing, air-cooled roll table, ultrasonic inspection, and highpressure hydraulic pressure testing machine, and drifter and so on.
National standard model mainlyproduces the steel pipe, such as water-gas pipe, structure pipe and so on.
- 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?
- According to my experience, there should be a problem with the boot encoder (also known as the digital wheel). Thank you. I hope I can help you.
- Q: What is rolling forming processing?
- Rolling process is a kind of pressure finishing, which is a kind of cold plastic characteristic of metal under normal condition.
- 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
- With the progress of technology and the development of production, more and more attention has been paid to the roll forming process.
- 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?
- Different from cutting, mirror rolling is a kind of plastic processing. Not only is the rolling workpiece surface roughness moment can reach Ry0.1-0.8 m, and the wear resistance of the surface hardening process has been improved at the same time fatigue strength also increased 30% advantages in cutting can not get.
- Q: Process mould for rolling forming process
- A movable wire plate, made of the same fixed wire plate, for relative reciprocating motion. Roll forming is the design of different structures on the plate rolling on the workpiece. Roll out all kinds of thread, convex ring, knurling, end chamfering, groove with different width and thickness as well as other required shapes.
- 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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straight seam HF 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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