A non-metallic cabling continuous oil pipe, relating to the technical field of oil mining in oil fields, is disclosed. Said oil pipe includes an inner liner tube, the inner liner tube which is used to form a passageway for medium transportation. An outer wall of the inner liner tube is provided with a cable embedded layer and a protection sleeve in sequence, the cable embedded layer including cables and a plurality of reinforcement belts. The reinforcement belts are used to resist torsional deformation and to bear an axial tension. The protection sleeve is used to prevent the cables from being worn.

The present invention relates to a linear actuator comprised of a tube and method of deploying 3 spools of strips into a tube by consolidating the strips in an overlapping condition with each other each in a helical form of a constant diameter.

A thin ribbon spirally wound polymer conduit and method of forming, wherein a helical reinforcing bead is interposed adjacent overlapping layers of ribbon. Further, a method of continuously forming spirally wound conduit wherein a sacrificial layer, preferably having a different base polymer to that of the conduit, is first applied to the former before the conduit is formed overtop.

A thin ribbon spirally wound polymer conduit and method of forming, wherein a helical reinforcing bead is interposed adjacent overlapping layers of ribbon. Further, a method of continuously forming spirally wound conduit wherein a sacrificial layer, preferably having a different base polymer to that of the conduit, is first applied to the former before the conduit is formed overtop.

A composite pipe, including, successively, from the inside out in the radial direction of the composite pipe: an inner liner layer; a reinforced layer; and an outer protective layer. The reinforced layer includes a bamboo fiber reinforced layer and a straw reinforced layer. The bamboo fiber reinforced layer includes a plurality of bamboo strip layers. Each bamboo strip layer includes winding bamboo strips. The straw reinforced layer includes a plurality of straw layers. Each straw layer includes winding stems of straw.

A composite pipe, including, successively, from the inside out in the radial direction of the composite pipe: an inner liner layer; a reinforced layer; and an outer protective layer. The reinforced layer includes a bamboo fiber reinforced layer and a straw reinforced layer. The bamboo fiber reinforced layer includes a plurality of bamboo strip layers. Each bamboo strip layer includes winding bamboo strips. The straw reinforced layer includes a plurality of straw layers. Each straw layer includes winding stems of straw.

A member for use in undersea applications comprising a plurality of conduits assembled into a bundle; the bundle being wrapped with a pressure-sensitive tape comprising a backing, a layer of corrosion-resistant yarns on one surface of the backing, and pressure-sensitive adhesive layer that coats the corrosion-resistant yarns and binds them to the backing.

The present invention discloses a metal strip winding continuous reinforced thermoplastic composite pipe. The present invention adopts a method designed for grouping the winding metal strips to rationally distribute the winding mode of the metal strips, and at the same time, increases the hoop strength and axial strength of the pipe by using the feature of high strength of the metal strips, thereby improving the compressive capacity of the pipe; there is no bonding between the metal strip reinforcement layers, which improves the flexibility of the composite pipe and reduces the relative slippage between the metal strip layers; the production process is simple, and requirements for the equipment investment are small, thereby greatly reducing the manufacturing cost and ensuring the flexibility and seismic resistance of the pipeline.

An electric-resistance-welded stainless clad steel pipe or tube that is excellent in both the fracture property of the weld and the corrosion resistance of the pipe or tube inner surface as electric resistance welded without additional welding treatment such as weld overlaying after electric resistance welding is provided. An electric-resistance-welded stainless clad steel pipe or tube comprises: an outer layer of carbon steel or low-alloy steel; and an inner layer of austenitic stainless steel having a predetermined chemical composition, wherein a flatness value h/D in a 90 flattening test in accordance with JIS G 3445 is less than 0.3, and a pipe or tube inner surface has no crack in a sulfuric acid-copper sulfate corrosion test in accordance with ASTM A262-10, Practice E, where h is a flattening crack height (mm), and D is a pipe or tube outer diameter (mm).

An electric-resistance-welded stainless clad steel pipe or tube that is excellent in both the fracture property of the weld and the corrosion resistance of the pipe or tube inner surface as electric resistance welded without additional welding treatment such as weld overlaying after electric resistance welding is provided. An electric-resistance-welded stainless clad steel pipe or tube comprises: an outer layer of carbon steel or low-alloy steel; and an inner layer of austenitic stainless steel having a predetermined chemical composition, wherein a flatness value h/D in a 90 flattening test in accordance with JIS G 3445 is less than 0.3, and a pipe or tube inner surface has no crack in a sulfuric acid-copper sulfate corrosion test in accordance with ASTM A262-10, Practice E, where h is a flattening crack height (mm), and D is a pipe or tube outer diameter (mm).