FIELD: machine building.
SUBSTANCE: reservoir, which during moulding inside consists of several parts (1) of tool, is equipped with at least one connecting element (3) piercing its wall (4). Also, a part of connecting element (3) punches wall (4) of the reservoir in a plasticised state. Connecting element (3) by material at least partially forms permanent connection with wall (4) of the reservoir. Connecting element (3) is equipped with a penetrating point; at penetrating through the wall of the reservoir connecting element (3) is introduced into a matrix of the tool. The matrix is positioned on a side of reservoir wall (4) opposite to connecting element (3). Connecting element (3) is made of two parts; also, one part is made in form of removable cutting tool (11). Cutting element (11) functions as a penetrating point for piercing wall (4) of the reservoir in still plastic state.
EFFECT: securing connecting elements at fabrication of reservoir by means of most simple devices and minimisation of leaks of hydrocarbons in reservoir wall.
16 cl, 4 dwg
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