Knowledge

09Dec, 2024

Function of External Welding
External welding refers to the welding process conducted on the outer surface of the steel pipe at a location one and a half pitch or two and a half pitch away from the internal we
09Dec, 2024

Function of Internal Welding
Internal welding is carried out by extending the welding machine arm into the interior of the steel pipe at a distance behind the engagement point where the steel strip is formed.
08Dec, 2024

Forming Angle
The forming angle refers to the acute angle formed by the intersection of the horizontal projection of the steel pipe centerline and the steel strip centerline, typically denoted a
08Dec, 2024

Function of Forming
With the assistance of the forming machine, steel strips of the specified width, thickness, and material, as required by the process, are rolled into steel pipes of the desired spe
08Dec, 2024

Function of Feeding
The steel strip passes between the lower and upper rolls of the feeder. The hydraulic cylinders act on both ends of the upper roll, generating sufficient friction between the rolls
08Dec, 2024

Function of Edge Trimming
The steel strip is continuously trimmed by a circular shear to achieve a uniform width. The steel strips used for spiral welded pipes are typically round-edged materials, which may
08Dec, 2024

Function of Shear Butt Welding
In the production process of spiral welded pipes, to ensure continuous production on the production line, two rolls of steel strips need to be welded together to form a continuous
06Dec, 2024

Function of Leveling
Due to the parallel, staggered, and overlapping arrangement of the leveling rolls, the steel strip passing between them undergoes repeated elastic-plastic deformation. Under condit
06Dec, 2024

Function of Uncoiling in Feeding
The function of uncoiling in feeding is to enable the steel strip to rotate smoothly under the action of the uncoiler and to feed the steel strip steadily into the next process. Th
06Dec, 2024

Processes in the Production of Spiral Welded Pipes
The processes involved in the production of spiral welded pipes include raw material preparation, loading and decoiling, leveling, shearing and butt welding, edge trimming, feeding
06Dec, 2024

Characteristics of Spiral Welded Pipe Production
Spiral welded pipes are formed by pre-bending and continuously bending steel plates or strips on a forming machine to create a tubular shape with spiral seams. The production of sp
06Dec, 2024

Equipment Required for Spiral Welded Pipe Production
The production equipment for spiral welded pipes typically consists of an uncoiler, a leveler, a shearer, a disc shear, a feeder, guide plates, a former, internal and external weld

First 36 37 38 39 40 41 42 Last 39/111