The use of double layers or more layers of medium thickness plate (30m, above) coil welding into different diameters but interference with the simple section, Hamenako mechanical thermal sleeve processing harmonic unit CSF-65-80-GH-F0 and then the outer simple heating to the calculated temperature, can be set, cooling shrinkage will be closely matched. Layer by layer to the desired thickness. Set a good joint processing ring groove and then welded into the whole container.

The hot sleeve container needs more accurate interference, Hameenako mechanical hot sleeve processing harmonic unit CSF-65-80-GH-F0 but also strive to match the surface without mechanical processing, which improves the accuracy of the volume, and set of more selective matching. But even if there is interference, it will not be very uniform. If the overpressure treatment is carried out after the sleeve assembly is connected into the container, the fit can be made close, which can reduce the requirements for interference and circular simplicity accuracy. Although the prestress during the hot sleeve can improve the stress state of the cylinder subjected to internal pressure, the harmonic element CSF-65-80-GH-F0 is processed by hamenako mechanical hot sleeve