LINEAR ELEMENT OF COLLAPSIBLE PIPELINE Russian patent published in 2019 - IPC F16L9/14 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of pipeline transport, in particular to collapsible pipelines (CP). CP linear element is a metal-glass-plastic construction in the form of a pipe with end parts (power tips). Pipe body has a three-layer structure, the inner layer of which is made of a deformable aluminum alloy and ensures the impermeability of the linear element to the transported medium, but does not perceive the forces acting on the pipe. Middle layer absorbs these forces and is made of high-strength epoxy plastic. Outer layer protects the middle layer from the action of ultraviolet radiation and provides signal or masking staining depending on the purpose of the linear element. End parts are made of high-strength aluminum alloy and bonded to the inner layer of the pipe with adhesive bonding, and are covered by the middle layer by the shanks.

EFFECT: technical result is to ensure the impermeability of the linear element for the transported medium, the strength of the connections and the flow of static electricity while reducing the mass and flexural rigidity of the linear element.

6 cl, 2 dwg