METHOD OF CONTAINER PRODUCTION Russian patent published in 2008 - IPC B21D51/24 

FIELD: technological processes.

SUBSTANCE: in tightly sealed volume of container, which has preset height and diameter, within at least 5÷10 minutes, internal pressure is pulled, which exceeds container working pressure at least 10 times, further control of deformation is carried out, final shape is memorised and registered, in accordance with which shape of bottoms is designed. When containers of the same height and diameter, which are intended for storage of acetylene, bottoms are manufactured in accordance with designed form, and prior to top bottom connection with shell, neck is welded with the top bottom. Neck is made of cylindrical shape with stepwise fastening butt end. Step of smaller diameter of this bu end is coaxially installed in reciprocal opening, which is provided in top bottom, and step of larger diameter of fastening but end, which is made according to the shape of top bottom section adjacent to it, is installed at the same section. Welding of neck with top bottom is made from inside, along external facet of smaller diameter step. After shell is fixed with bottoms, container is coaxially installed in boot according to ring shape, with cylindrical part that transfers into expanding conical support part that has certain angle of taper. After that boot along cylindrical part is fixed with shell by means of spot welding, which is evenly installed along circumference. At that certain distance is maintained of spot welding circumference from the plane of container boot support, as well as distance of this circumference to the annular welding seam of shell with lower bottom.

EFFECT: increases operation reliability.

2 cl, 1 ex, 1 dwg