Abstract: A pipeline unit (1) comprising a pipe member (2) and a pipe coating (3) surrounding the pipe member (2), which pipe member comprises a pipe end (4), and which pipe coating (3) extends along a length of the pipe member and ends at a coating end face located at a distance from the pipe end, wherein a bonding member (8) is provided on the coating end face, which bonding member (8) is attached to the coating end face and made from a material which is different from the material of which the pipe coating (3) is made.

Abstract: A mandrel for an isolation tool for completion of oil and gas wells and a method for making the mandrel is disclosed. The mandrel comprising a composite tube, wherein the composite tube has an inner diameter; wherein a first section of the composite tube has a first outer diameter and a second section has a second outer diameter, wherein the first end has a beveled surface defined by a first angle with an interior surface of the composite tube, wherein the composite tube is made from a plurality of layers of fibers coated with a chemical matrix. The method comprises interweaving a plurality of layers of fibers around a core, coating the plurality of layers of fibers with a chemical matrix to form a composite tube, curing the composite tube, milling or grinding the outer surface of the composite tube to form a mandrel, and removing the core.

Abstract: A pipe system comprising a pipe comprising an exterior of the system, the pipe comprising an inner pipe wall; a hydrophobic layer interior to the inner pipe wall; and a liquid interior to the hydrophobic layer and interior to the inner pipe wall, the liquid comprising water and one or more hydrocarbons.

Abstract: A member with flow passage includes: a base member; a plate-like member including two flat plate portions that are positioned at both widthwise ends and have main surfaces passing over one and the same plane, and a convex portion that is provided between the two flat plate portions and has a cross section shaped in a thickness direction so as to protrude with respect to the flat plate portions, and forming the flow passage; and a metal deposit layer that is formed by, while main surfaces of the flat plate portions opposite to a top of the convex portion are facing the base member, accelerating powder of metal or alloy together with a gas, and spraying and depositing the powder in a solid-phase state on a surface of the plate-like member at the top side of the convex portion and a surface of the base member.

Abstract: A tubular fluid flow device of varying outside dimensions adapted for use in a high pressure, rapidly cycling temperature environment, an isolation ball valve, a ball valve isolation method and a catalyst transfer method. The flow device 10 can have a tubular member 12 having at least one locus 14, 16 of non-uniform outside dimension and an axial flow passage 20 with a uniform inside diameter between opposite end connection elements. A thermal sleeve liner 22 can be disposed about the axial flow passage in a bore 24 formed in the tubular member, wherein the sleeve comprises an outer surface having a thermal barrier coating 26. A pressure-relief passage 28 is provided in fluid communication between the axial flow passage and an interface between an exterior surface of the thermal sleeve liner and an inner surface of the bore.

Abstract: A method of reducing magnetite formation in the bore of a pipe including the steps of selecting a pipe with a pre-existing oxide layer on its inner bore surface and coating the pre-existing oxide layer with an oxidation resistant metal to thereby reduce magnetite formation in the bore of the pipe.

Abstract: The present invention generally relates to coating materials, including photoactive coating materials. In some aspects of the invention, a sol-gel is provided that can be formed as a coating on a microfluidic channel. One or more portions of the sol-gel can be reacted to alter its hydrophobicity, in some cases. For instance, in one set of embodiments, a portion of the sol-gel may be exposed to light, such as ultraviolet light, which can be used to induce a chemical reaction in the sol-gel that alters its hydrophobicity. In one set of embodiments, the sol-gel can include a photoinitiator, that upon exposure to light, produces radicals. Optionally, the photoinitiator may be conjugated to a silane or other material within the sol-gel. The radicals so produced may be used to cause a polymerization reaction to occur on the surface of the sol-gel, thus altering the hydrophobicity of the surface. In some cases, various portions may be reacted or left unreacted, e.g.

Abstract: The oscillating tube (10) includes a first end (12), an opposed second end (16), and a fluid conduit (18) defined by the tube extending between the opposed ends (12, 16). A segmented damping coating (20) covers in intimate contact a covered or coated portion (22) of the tube (10) so that the coated portion (22) of the tube includes at least about ten percent of an axial length of the tube and an uncoated portion (34, 36) that is not covered by the segmented damping coating (22) includes greater than about ten percent of an axial length of the tube (10). The segmented damping coating (20) may include polymers, polytetrafluoroethylene, single composition polymers, ceramic fibers, polymer fibers, reinforced polymer fibers including a polytetrafluoroethylene, ceramics, including monolithic and matrix ceramics, thermoplastics, carbon/graphic materials, silicon materials, metal rings or clamps, and combinations thereof.

Abstract: The present invention relates to new graphene-based steel tubes, pipes or risers, whose products are obtained by a method of manufacturing that consists in adding graphene nanosheets, heat treatment, forming tubular geometry and surface finish. In addition to the unique chemical composition based on graphene, with carbon content ranging between 0.01 and 21.0%, these products have the wall thickness between 800 nm and 80 mm (from ultra fine to thick), diameter between 10 and 5000 mm, and having a tensile strength not less than 2000 MPa reaching up to 50 GPa, with far superior features to those obtained by other methods. Such products can be used for petroleum, natural gas and biofuels transportation, including in deepwater submarine riser systems (>1500 m), with direct application in the oil industry.

Abstract: A method for depositing a coating includes creating a vacuum within an interior volume of a tubular structure, wherein the tubular structure also includes an internal surface. Gas is supplied to the interior volume of the tubular structure, wherein the gas includes a plasma precursor in the gas phase. The tubular structure is biased relative to ground. Plasma having a density is formed and cyclically positioned along the length of the tubular structure. Positive ions of the plasma precursor gas are generated and are deposited on the internal surface forming a coating on the internal surface, wherein the coating exhibits a water contact angle of greater than 120°.

Abstract: A heat exchanger system extracts heat from sewer waste water. Preferably, a first surface is narrow band in an interior surface of a pipe, and the band is preferably oriented transverse to a direction of fluid flow. In the case of a horizontal pipe, the band may be a partial band, and may be limited substantially to a wetted portion of the pipe in order to reduce the size of the band.

Abstract: A delayed degradability drip irrigation pipe including a water conduit at a water conduit pressure and a plurality of drip irrigation outlets, each communicating with the water conduit and providing a water output at a pressure below the water conduit pressure, at least the water conduit being formed at least partially of a degradable material and also including a degradability delayer which provides a desired delay prior to failure of the water conduit but permits eventual degradation of the degradable material under predetermined conditions.

Abstract: Provided are an apparatus for manufacturing a compound powder, a method of manufacturing an iron-boron compound powder by using the apparatus, a boron alloy powder mixture, a method of manufacturing the boron alloy powder mixture, a combined powder structure, a method of manufacturing the combined powder structure, a steel pipe, and a method of manufacturing the steel pipe The method of manufacturing the boron alloy powder mixture includes: preparing a mixed powder including a boron iron alloy powder and a target powder; heat-treating the mixed powder to boronize at least a portion of the target powder and de-boronize at least a portion of the boron iron alloy powder, thereby de-boronizing the boron iron alloy powder to reduce the melting point of the boron iron alloy powder.

Abstract: Coating composition comprising an ethylene copolymer containing not more than 5 mole-% comonomer, whereby the fraction of the ethylene copolymer having a molecular weight of 300 000 g/mol-600 000 g/mol has a methyl branching of more than 4.0 Methyl per 1000 C as determined by SEC/FT-IR analysis.

Abstract: Economical heavy concrete weight coating is used as a weight coating for submarine pipes. The developed economical heavy concrete weight includes steel slag and iron ore as aggregate. Steel slag can contain iron and thus have a higher density than some other types of slag. By supplementing the steel slag with iron ore as aggregate, the economical heavy concrete weight coating can have a higher density than a coating having just slag. Economical heavy concrete weight coating can have a density greater than 190 pcf.

Abstract: A printing structure of a water pipe contains a body having a plastic layer formed around an outer rim of the body and a printing layer integrally formed with and around the plastic layer, wherein the printing layer has a color pattern or a graphic pattern transfer printed thereon. The printing water pipe has a variety of patterns on the body thereof so as to provide pattern options to the customer. In addition, the pattern on the body of the water pipe allows being printed based on the users' requirement, thus obtaining customization.

Abstract: Methods of coating surfaces of a (e.g. drinking water) pipeline and pigments dispersions are described. The coating composition of the method and pigment dispersion comprise one or more alkyl phenyl ester compounds wherein the alkyl group comprises at least 8 carbon atoms.

Abstract: A protector which prevents damage to a solid lubricating coating on a threaded portion of a threaded joint when the protector is mounted on a pin or a box of a threaded joint for pipes in which at least one of the pin or the box is lubricated with a solid lubricating coating comprises a tubular member having a threaded portion on its inner or outer peripheral surface which threadingly engages with at least a portion and preferably 3-5 complete threads of the threaded portion provided on the pin or the box to be protected. The thread height H1 of the threaded portion of the protector and the thread height H2 of the complete thread of the pin or the box on which the protector is mounted satisfy H1>H2, and the difference between H1 and H2 [=H1?H2] is larger than the maximum coating thickness at the thread crest of the solid lubricating coating which covers the threaded portion of the pin or the box.

Abstract: The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m to 955 kg/m3.

Abstract: Pipe useful for downhole and transport of hydrocarbon fuel such as oil and/or natural gas is provided that has a non-stick coating adhered to the pipe interior surface, said coating being at least about 50 ?m thick and comprising at least two layers constituting an inner layer and an outer layer adhered to one another, each said layers containing polymer binder and fluoropolymer and being at least about 15 ?m thick, the weight proportion of said polymer binder to said fluoropolymer in said inner layer and in said outer layer but being effective to maintain adhesion between said layers during pressurization and decompression upon said non-stick coating being exposed to the Autoclave Test and the proportion of said fluoropolymer in said inner layer and said outer layer being effective to protect said interior surface during exposure of said non-stick coating to the Acid Soak Test.

Abstract: Described herein are conduits for conveying fluids and/or solids, the conduits having an interior surface that provide a high-slip boundary condition, thereby facilitating the flow of material therethrough. In some embodiments, the conduit has an interior surface with an impregnating liquid and a plurality of micro-scale and/or nano-scale solid features spaced sufficiently close to stably contain the impregnating liquid therebetween. The impregnating liquid fills spaces between the solid features, the interior surface stably contains the impregnating liquid between the solid features, and the impregnating liquid is substantially held in place between the plurality of solid features regardless of orientation of the interior surface and regardless of flow, passage, or removal of fluids and/or solids through, into, or out of the conduit.

Abstract: The invention concerns a threaded tubular component for drilling or working hydrocarbon wells, said tubular component having at one of its ends (1; 2) a threaded zone (3; 4) produced on its outer or inner peripheral surface depending on whether the threaded end is male or female in type, in which at least a portion of the end (1; 2) is coated with at least one film of polyurethane (12), 100% solid state, with an essentially rigid structure, based on a matrix of polyurethane and polyurea, in which the urethane functionality is predominant with respect to the urea functionality in a proportion of at least 55% by weight.

Abstract: The present invention relates to a method for reducing gas hydrate adhesion to the interior surface of a conduit and associated equipment transporting or processing a fluid stream in oil and gas exploration and production, petroleum refining and/or petrochemistry, by providing the conduit interior surface with a coating layer exhibiting a static contact angle of the sessile water drop on the coating layer in air higher than 75° at ambient air conditions, as measured according to ASTM D7334-08, wherein said coating layer comprises diamond like carbon (DLC) comprising fractions of one or more components selected from the group consisting of silicon (Si), oxygen (O) and fluor (F).

Abstract: The present invention provides a method for producing a coated stainless steel member, comprising: performing Wood's strike nickel plating on a stainless steel substrate, and then performing cationic electrodeposition on a formed Wood's strike nickel plating layer.

Abstract: The invention provides an insulation material comprising an epoxy-terminated prepolymer and an amine curing agent. The reaction production of the epoxy-terminated prepolymer and amine curing agent provides for an elastomer that combines the processing and mechanical properties of polyurethane elastomers with improved thermal-hydrolytic stability. The insulation material is particularly useful as thermal insulation and coating for subsea oil and gas applications.

Abstract: In a method for the introduction of an inliner into a pipe or a pipeline, where the external diameter of the inliner is greater than the internal diameter of the pipe or of the pipeline, and where the action of an external force is used to reduce the cross section of the inliner prior to the introduction, the inliner is composed of a polyamide moulding composition which comprises at least 50% by weight of polyamide which is not PA11. The recovery behavior of said polyamides is similar to that of polyethylene usually used for this purpose.

Abstract: The composite tube comprises a tubular arrangement of knitted fiber characterized by a plurality of interlocking loops. The tubular knitted pattern allows for variable electrical, mechanical and geometrical tube options. A matrix material is applied over the knitted fiber pattern and is allowed to cure. The matrix material may include a combination of resin and epoxy constituents. The matrix material may be applied by a vacuum bag molding process. The flexible knitted reinforcing layer allows use of an inflatable bladder to hold the reinforcing layer in the desired shape, thereby facilitating tube constructions of varying shapes and diameters. Continuous application of the matrix material avoids overlapping seams that are prone to delamination. Methods are provided for reinforcing the composite tube construction including one or more folded layers of knitted fiber, a reinforcing wrap made of knitted fiber, and an inflatable balloon element in combination with a layer(s) of knitted fiber.

Abstract: An emulsion composition to coat a substrate that includes a barrier-forming material, water; an organometallic compound, and at least one thickener is described. The composition may further include a material such as talc. Articles, including ductile pipes, coated with this material are also described. A method of increasing the drying rate of a composition applied to a substrate to form a coating that includes application of the emulsion composition and drying the composition to form a coating layer. Also included are methods of forming a coating that exhibits a reduced incidence of blocking or pull-off, comprising applying the emulsion composition to a substrate and drying, whereby the coating layer formed exhibits a reduced incidence of blocking or pull off relative to conventional asphalt emulsion coatings.

Abstract: A flame-retarded thermoplastic composition including a graft copolymer containing polyamide blocks and composed of a polyolefin backbone and on average at least one polyamide graft, in which the grafts are attached to the backbone by the residues of an unsaturated monomer (X) having a function capable of reacting with a polyamide, the residues of the unsaturated monomer (X) are attached to the backbone by grafting or copolymerization from its double bond, wherein the composition includes: —between 60% and 70% by weight of the graft copolymer containing polyamide blocks, —between 22% and 28% by weight of poly(pentabromobenzyl acrylate), —between 4% and 8% by weight of a synergistic flame retardant chosen from antimony trioxide, derivatives of tin, of molybdenum and/or bismuth and also boron and zinc oxides, calcium borates, calcium sulphate and/or zinc stannate, between 0.5% and 5% by weight of organophilic treated clay.

Abstract: A pipe includes a tubular pipe formed of a metal sheet that is spirally wound such that opposite edges of the metal sheet are joined by a crimped lock seam that extends helically along a length of the tubular pipe. A sealing arrangement includes a helically extending worked surface band extending along the crimped lock seam and to both sides of the crimped lock seam, the worked surface band having a surface roughness that is greater than a surface roughness of unworked surface portions outside of the worked surface band. A helically extending external coating band is applied over the crimped lock seam and bonded to the worked surface band.

Abstract: A heat-insulated wound hose is formed by a process, in which a metal wound hose manufactured in the conventional manner is at first upset, such that turns, which are spaced apart by adjacent axial wall areas of individual turns, form at least one uninterrupted jacket wall surface. A ceramic-based coating is subsequently applied to the at least one uninterrupted jacket wall surface. The coating is then cured, and the wound hose thus formed is subsequently pulled apart, whereby adjacent axial wall areas of adjacent turns are detached from one another and thereby the coating is broken up at partitions.

Abstract: The invention relates to a method for producing a strand-shaped part, wherein a hollow section (16) of metal is extruded, the extruded metal hollow section (16) cools and/or is cooled, and a plastic strand (28) having one or more layers is extruded into the extruded metal hollow section (16) after or during cooling. The plastic strand (28) passes by a dispensing tool (24), exposed to the heat of the extruded metal hollow section (16) of an extruder (34). The dispensing tool is inserted into the metal hollow section (16) and comprises a dispensing outlet (26), which is disposed inside a region of the metal hollow section (16) in which the dispensing tool is cooled in relation to the temperature thereof during extrusion.

Abstract: A non-stick apparatus, comprising a fluid-solids stream storage or conveyance article comprising a first material; a coating on an internal surface of the article comprising a second material; wherein the second material comprises a reduced adhesion strength with a wax deposit of less than 30% of a first material adhesion strength with a wax deposit.

Abstract: An exhaust pipe includes a base material, a surface coating layer, and an information display. The base material is made of a metal. The surface coating layer is provided on a surface of the base material. The surface coating layer includes an amorphous inorganic material. The information display includes a character portion and a background portion. At least one of the character portion and the background portion is located in the surface coating layer.

Abstract: An exhaust pipe includes a metal base material and a surface coating layer formed on a surface of the metal base material. The surface coating layer contains an inorganic glass base material and has a concave portion and a convex portion on a surface of the surface coating layer. The concave portion is lower than a first reference surface. The first reference surface has an average height of the surface of the surface coating layer. The convex portion is located on a peripheral edge portion of the concave portion and surrounds the concave portion. The convex portion is higher than the first reference surface.

Abstract: Disclosed is the treatment of the interior walls of a fluidic channel with a self-assembled monolayer of an organophosphorus acid.

Abstract: The invention is directed to an article with a liquid-impregnated surface, the surface having a matrix of features thereupon, spaced sufficiently close to stably contain a liquid therebetween or therewithin, and preferable also a thin film thereupon. The surface provides the article with advantageous non-wetting properties. Compared to previous non-wetting surfaces, which include a gas (e.g., air) entrained within surface textures, these liquid-impregnated surfaces are resistant to impalement and frost formation, and are therefore more robust.

Abstract: The invention is directed to an article with a liquid-impregnated surface, the surface having a matrix of features thereupon, spaced sufficiently close to stably contain a liquid therebetween or therewithin, and preferable also a thin film thereupon. The surface provides the article with advantageous non-wetting properties. Compared to previous non-wetting surfaces, which include a gas (e.g., air) entrained within surface textures, these liquid-impregnated surfaces are resistant to impalement and frost formation, and are therefore more robust.

Abstract: Coated pipes have a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3.

Abstract: A pipe or pipe fitting for use in harsh environment such as in petroleum refinery processes for cracking petroleum feedstocks, the pipe or pipe fitting comprising a 0.25 to 2.5 mm thick Co-based metallic coating on an internal surface of the pipe body, the coating having a hypereutectic microstructure characterized by carbides in a cobalt matrix and an average carbide grain size of less than 50 microns, and the Co-based metallic composition overlays the pipe internal surface at an interface which is free of heat-affected zone and which has a diffusion zone which is less than 0.002 inches thick.

Abstract: Mortar-coated steel pipe comprise a steel cylinder having a mortar layer disposed therein, such mortar layer being free of any metallic reinforcement. An overcoat is disposed over the mortar layer and is formed from a material that is a dielectric and/or a barrier to moisture and oxygen entering the mortar layer, e.g., a polymeric material. The pipe may include a further concrete or mortar layer disposed over the overcoat, forming an outermost pipe surface. The outer layer can be cement, mortar, or other material. The mortar layer thickness is about 2 to 30 mm, the overcoat thickness is about 0.1 to 2 mm, and any outer layer thickness is about 1.2 to 4 cm. The pipe is made by compression coating method, where mortar layer and overcoat are applied simultaneously. When an outer layer is desired, it is preferably applied at the same time as the mortar layer and overcoat.

Abstract: An improved sprayable aqueous slurry for inhibiting corrosion in sewer pipe lines comprising an aqueous mixture of about 100% by volume of a metal hydroxide and/or a metal dioxide selected from a class consisting of magnesium hydroxide and titanium dioxide and less than about 1% by volume of sodium hydroxide, the metal hydroxide and the metal dioxide having mixing rates of about 50 to 60% by volume with about 50 to 40% by volume of water and the sodium hydroxide having a mixing rate of about 50% by volume with about 50% of water and the slurry having a pH of 13.0 or more and a useful life of about 15 to about 24 months.

Abstract: An exhaust pipe paint includes an inorganic particle, at least one of an inorganic binder and an inorganic binder precursor, and an inorganic glass particle. The inorganic glass particle includes a low-melting glass having a softening temperature lower than a softening temperature of the inorganic binder. The low-melting glass includes at least one of soda-lime glass, alkali-free glass, borosilicate glass, potash glass, lead crystal glass, barium glass, boron glass, strontium glass, alumina silica glass, soda zinc glass, and soda barium glass.

Abstract: A protective coating for a metal substrate is provided that is light, durable, galvanically protective, and easily applied at the site of manufacture. The coating has at least two layers, one of which is a galvanizing layer and one of which is a micro-composite of a galvanic metal and a non-conducting material, such as polymer. Such coatings are useful for example to protect pipes or other metal surfaces in corrosive environments. Methods of producing the coating are provided, including methods that use advanced spraying techniques to provide very thin but consistent layers. Using the advanced spraying methods the composite layer can be created by co-spraying the galvanic metal and the nonconductive material onto the surface of the galvanic coating. Optionally, an outer coat of insulating material can be applied to provide further protection to the surface.

Abstract: An exhaust pipe includes an exhaust pipe base and a surface coat layer. The surface coat layer is provided on the exhaust pipe base and includes an inorganic glass layer, an inorganic particle, and an inorganic binder. In the inorganic glass layer, a part of the inorganic binder is diffused and the inorganic particle and the rest of the inorganic binder in particulate form are dispersed. The inorganic glass layer includes at least one of SiO2—B2O3—ZnO glass, SiO2—B2O3—Bi2O3 glass, SiO2—PbO glass, SiO2—PbO—B2O3 glass, SiO2—B2O3—PbO glass, B2O3—ZnO—PbO glass, B2O3—ZnO—Bi2O3 glass, B2O3—Bi2O3 glass, B2O3—ZnO glass, and BaO—SiO2 glass.

Abstract: A tubular pipe (10) for transporting liquid sodium is suitable for inhibiting any leaks of sodium outside the pipe. The pipe includes a pipe body (20) covered on the inside with an inner layer which includes: a first continuous layer (40) made of ceramic or a metal or metal alloy, for being placed in contact with the liquid sodium carried by the tubular pipe; and between the pipe body and the first ceramic layer, an intermediate layer (50) made of a reactive material which, when the layer contacts the liquid sodium, the layer turns into a modified material which has separate electric conductivity from that of the reactive material.

Abstract: A method of covering the inside surface of a steel connection part having an empty inside volume defined by the inside surface, with a liner constituted by a layer of substantially uniform thickness of a thermoplastic material. The connection part including at least two open tubular ends suitable for being connected respectively to at least two steel pipe elements, each including the same internal liner. A rotary molding method is implemented in which the connection part acts as a mold. A connection part obtained by the rotary lining method is provided, and methods of assembling a connection part, as obtained by rotary lining, with a likewise lined pipe element.

Abstract: The composite tube comprises a tubular arrangement of knitted fiber characterized by a plurality of interlocking loops. Selected knitted patterns provide desired density or spacing between fibers. Selected fibers may include materials such as Kevlar®, carbon fiber, and combinations thereof. The tubular knitted pattern allows for variable electrical, mechanical and geometrical options. A matrix material is applied over the knitted fiber pattern and is allowed to cure. The matrix material may include a combination of resin and epoxy constituents. The matrix material may be applied by a vacuum bag molding process. Electrical and mechanical properties can also be controlled by selecting desired resin and epoxy constituents. The flexible knitted reinforcing layer allows use of an inflatable bladder to hold the reinforcing layer in the desired shape, thereby facilitating tube constructions of varying shapes and diameters.

Abstract: The invention relates to the manufacture of protective coatings onto interior surface of long-length tubes or pipes having relatively small diameter, in order to prevent corrosion-, erosion-, or wear damage of said surface. The method for manufacturing a tube comprising an embedded corrosion-resistant and wear-resistant-coating, wherein the tube consists of an external tube layer, a bond layer, a corrosion- and wear-resistant coating, and an internal tube layer, includes: depositing the corrosion- and wear-resistant coating (CWRC) onto outer surface of the internal tube, depositing a bonding material onto CWRC, inserting the internal tube with deposited CWRC and bond material into the external tube to provide an embedded CWRC between external and internal tube layers, and bonding both tubes with the interior CWRC in one solid structure. A crack-healing compound or release compound is additionally deposited onto internal tube before CWRC, which is preferably alumina ceramic or hard thermal-sprayed alloy.

Abstract: A tubular part with a complex geometrical shape, the tubular part is made of a composite material including, on the one hand, a core part made of a very high-temperature resin obtained by a 3-D direct-creation method using a very high-temperature thermoplastic resin and, on the other hand, a coating of resin-impregnated fibres. The part includes, for example, at least one internal separation of the tube into several conduits that do not communicate with one another. The part is suitable for conveying air flows in opposite or separate directions. One of the conduits can be a dedicated cable raceway.