The present invention may manufacture a composite pipe by forming an adhesive layer and a resin layer on an outer surface of a metal pipe, and although the composite pipe is wound in a ring shape after the composite pipe is manufactured, a circular cross sectional shape may be maintained without deformation, and after the composite pipe is straightened for the purpose of construction, separation or buckling may be prevented, resulting in excellent transportability and constructability of a product.

Example embodiments relate to a method of protecting a surface of an e-vaping device portion from corrosion, the method including preparing a coating mixture configured to protect the surface from corrosion, and coating the surface with a protective coating based on the coating mixture, wherein the coating is performed via one of electrodeposition, dipping, spraying, and vapor deposition, and the coating mixture includes at least one of a silane and a resin.

A rectifying device including a first flow channel member provided between an inner peripheral wall and an outer peripheral wall; a second flow channel member provided upstream of the first flow channel in a flowing direction of the fluid and being connected with the first flow channel along an entire circumference. The device includes an inflow section at the second flow channel member for fluid to flow into a circumferential area of the second flow channel; a first guide wall in the second flow channel at a position away from the inflow section in a circumferential direction and to guide the fluid flowing toward a first side in the circumferential direction through the second flow channel toward the first flow channel; and a second guide wall in the second flow channel adjacent the first guide wall in the circumferential direction.

The present disclosure relates to a heat transfer tube comprising nanostructures formed on the surface, and a method for manufacturing the same, and by forming nanostructures on a heat transfer tube surface, a superhydrophobic surface may be obtained under a high temperature environment as well. In addition, superhydrophobicity may be enhanced by further forming a hydrophobic coating layer on the nanostructure-formed heat transfer tube surface. By using a method of forming nanostructures by dipping the heat transfer tube surface, complex shapes may be coated, and therefore, a plurality of assembled heat transfer tubes may be coated, and damages occurring during a process of assembling the heat transfer tube after coating may be prevented.

A thermal roller (1) includes: a cylindrical body (2) extending along a longitudinal direction (X-X), the cylindrical body (2) including at least one inner tubular element (3) and at least one outer tubular element (4) that is concentrically arranged around the inner tubular element (3), the inner tubular element (3) includes an outer diameter d and the outer tubular element 4 includes an inner diameter D, being D>d; two hubs (6), each arranged at one end of the cylindrical body (2); at least one heat-exchange chamber (10) realized between the inner tubular element (3) and the outer tubular element (4). The roller includes: a coating layer (11) for the inner tubular element (3) made of plastics, and at least one helical channel (13) between the coating layer (11) and the outer tubular element (4). The helical channel (13) is realized at least partially in the coating layer (11).

Systems and methods for protecting threads of metal pipes while coating the metal pipes with a protective coating are disclosed herein. Innovative metal couplings are used to protect the threads while a protective coating is applied to the metal pipes. The couplings are reusable and result in multiple efficiency improvements over previous methods and systems. Benefits include elimination of plastic caps and reduced waste, improved flowthrough in the powder coating process, more efficient thermo transfer in the thermal chamber, and an increase in the overall capacity of the powder coating operation.

The presently disclosed methods provide for preparing a stable hydrophobic self-assembled monolayer (SAM) coating, that includes preparing a SAM solution by combining a SAM compound with an initial solvent and an additional solvent and mixing, in a sealed container, the SAM solution at a first fixed temperature at a constant rotational speed for a first fixed time interval. The SAM coating is then prepared by treating a substrate to achieve pristine state, and heating the substrate at a second fixed temperature for a second fixed time interval. Then within a sealed container, immersing the substrate in the SAM solution for a third fixed time interval. Following the completion of the third fixed time interval, the substrate is removed from the sealed container and treated with the initial solvent and the additional solvent to remove excess SAM material, and heated at a third fixed temperature.

Systems and methods for safely repairing potable water tanks when submerged within a tank. The barrier may be shield structure defining a cavity and having an aperture and valve for injecting the coating material into the cavity, or the barrier may be a sheet preloaded with coating material and stored within and delivered via a transfer shield, or the barrier may be a continuous sheet delivered over the top of the coating material at the same time it is applied. The barrier layer, be it a shield structure sheet or continuous sheet, becomes adhered to the substrate being repaired so post cure removal is not required. Methods of repair include pressing the sealing edge of a barrier shield over an area, injecting coating material between the barrier shield and area, removing the source of coating material, and permitting the coating material to cure.

A method for thermochemically treating a part while masking a portion and corresponding mask are provided. The method includes the steps of providing a mask comprising a body with a seat, at least a deformable sealing washer located in the seat, and a tightening bushing, the body having a cavity, placing a first portion of the part in the cavity, a second portion of the part being located in a passage in the sealing washer, and a third portion of the part being located outside the mask, moving the tightening bushing to its tightened position so that the sealing washer is deformed and applied against the second portion of the part, and applying a thermochemical treatment to the third portion of the part.

A method for coating an internal surface of a component including preparing the internal surface, coating with chemical deposition fluid and curing the coating, is provided. The method includes flushing the internal surface with a supercritical fluid, for preparing the internal surface. The method further includes flushing the internal surface with a chemical deposition fluid such the chemical deposition fluid creates a coating on the internal surface. The method further includes curing the coating with an infrared heat source.