SLIDING HEAD FOR DISTRIBUTION INSTRUMENTS CONTAINING ITS EXTENSION TOOLS AND THEIR APPLICATION Russian patent published in 2017 - IPC B21D39/20 B21D41/02 F16L13/16 B29C57/04 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metal processing, and can be used for distribution of hollow shells made of plastic and plastic coated metalls. Sliding cap head comprises a cap with radially inwardly directed guide flange, and a set of sector-made expander jaws, which are separately through an internal flange sector coinciding with the guide flange, and they are located in a swivel cap with the possibility of radial movement. In the closed position of expander jaws, outer walls form an approximately cylindrical lateral surface. In this case the outer wall of at least one expander jaws has at least one extending in the direction of the longitudinal axis of recess and/or elevation extending across the surface. Sliding head is used for distribution of hollow shells, made of plastic and plastic coated metalls. Sliding head and the containing it tools, are used to form a predetermined space leak in non-pressed state pipe connection in the distribution pipes.

EFFECT: it is possible to form of the leak in the non-pressed pipe connection state.

11 cl, 5 dwg