Spiral and calendered tubes

PRODUCTION OF Spiral and Calendered Tubes

YOUR RELIABLE SOLUTION FOR HIGH QUALITY METAL TANKS AND METAL CARPENTRY PRODUCTS

Pipe manufacturing plants Spiralized and Calendered

The plant for the production of spiral tubes for tank shells is one of the strong points of CSM Lo Cascio of Caltanissetta in the production of underground tanks for fuel. The basic idea is to directly transform the coil into a tank ferrule. The ferrules from helical tube are produced through a process that includes the unwinding of a coil, automatic flattening, helical calendering, automatic welding from the inside with procedure 135 (EN 288) and from the outside with procedure 121 (EN 288), and subsequent plasma cutting to the pre-established length.

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Features of the Tubes Spirals

The result of this production process is a tube with geometric and resistance characteristics that are significantly superior to those obtained with traditional calendering methods. The resulting ferrule, still without rounded ends, is substantially self-supporting thanks to its structural rigidity. In conditions of total unloading, the deformation due to its own weight is significantly lower than traditionally calendered sheets. This increase in rigidity is due to the helical profile of the weld, which follows the sheet and contributes to structural stability with its transverse component.

Features of the Tubes Calendered

Calendered tubes are metal tubes that have been subjected to a calendering process, a manufacturing technique that involves the plastic deformation of the material through the use of rollers. They can have different dimensions (outer diameter, wall thickness) depending on the specific needs of the application and, thanks to their spiral shape, these tubes can absorb tensions and deformations, making them suitable for different applications even under variable load conditions.