The present invention provides an air exhaust or air-and-smoke exhaust pipe for a clean room and a manufacturing method thereof. The air exhaust or air-and-smoke exhaust pipe is a pipe that satisfies FM4922, FM4910, or another equivalent standard and that is used for exhausting nonflammable chemical gas and corrosive vapor or nonflammable chemical gas, corrosive vapor and smoke in fire. The manufacturing method for the air exhaust or air-and-smoke exhaust pipe is: coating an inner part of a pre-manufactured metal pipe with a liquid coating that can be initially dried at normal temperature or low temperature to obtain an inner coating pipe; and baking the inner coating pipe at a temperature not exceeding 250° C. after the coating is initially dried, thus the coating is completely dried to obtain a finished product.

Disclosed is a method of in-situ application of a conformal surface treatment to an internal surface of a heat exchanger of a chiller comprising providing a surface treatment solution to an inlet of the heat exchanger of the chiller, urging a flow of the surface treatment solution along a flowpath from the inlet past a plurality of heat transfer tubes to an outlet of the heat exchanger of the chiller, collecting the surface treatment solution, forming the conformal surface treatment along an internal surface of the first manifold, the plurality of heat transfer tubes, the second manifold, and a plurality of interconnections therebetween, stopping the flow of the surface treatment solution, and removing the surface treatment solution from the chiller.

An article and method for forming a coated metal pipe for use as an automotive fluid transport tube including a copper plated carbon steel tubing formed into a circular cross sectional profile. At least one intermediate layer including any of a corrosion inhibiting zinc/aluminum alloy, electroplated zinc or hot dip aluminum is applied over said tubing. One or more outer polymer or copolymer layers are applied over the intermediate layer, with the outer layer or multi-layers compounded with a graphene or graphene oxide powder.

A machine for making a protective joint has a guide system, which is selectively clampable about a pipeline on opposite sides with respect to the annular junction portion and configured for defining an annular path about the annular junction portion; at least one heating unit moveable along the annular path and configured for heating the annular junction portion and moveable along the annular path; at least one spray unit moveable along the annular path and configured for applying at least one polymer material to the annular junction portion; and an extrusion die moveable along the annular path and configured for applying a protective foil about the annular junction portion.

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.

The method for flame coating tubular elements provides for arranging a said tubular element (2) to be coated at a coating station, providing an applicator unit (3), operating in the coating station, in an inactive configuration, spaced from the tubular element (2), the applicator unit (3) carrying at least one thermoplastic powders flame applicator device (4) and being alternatively operable between the inactive configuration and an active configuration, approached radially to the tubular element (2). After having brought the applicator unit (3) towards the tubular element (2), the method provides for operating the same unit (3) in the active configuration, so as to peripherally engage the element (2) itself. The applicator device (4) is turned on, the thermoplastic powders are fed and the applicator device (4) is operated in motion around and/or along the tubular element (2) so as to flame coating it with a controlled flow of thermoplastic powders.

Provided is an apparatus for coating a girth weld and a cutback region surrounding said girth weld, said apparatus having lateral travel at least equal to the length of the cutback region and circumferential rotational travel around the pipe. The apparatus can provide a multiple component coating accurately and safely, without the need for solvent flushing of the apparatus.

Provided are a flexible tube for an endoscope, the flexible tube having a flexible tube base made of metal, a resin cover layer that covers an outer periphery of the flexible tube base, and a primer layer that includes at least one compound represented by general formula (1) or (2) and that is disposed between the flexible tube base and the resin cover layer, in which the resin cover layer includes at least one selected from the group consisting of polyamides, polyesters, polyurethanes, and polyolefins on a side of the resin cover layer in contact with the primer layer, an endoscopic medical device including the flexible tube for an endoscope; a method for producing the flexible tube for an endoscope; and a method for producing the endoscopic medical device.

R.sup.1.sub.m-M-(OR.sup.2).sub.n-m  General formula (1):

O-[M-(OR.sup.2).sub.n-1].sub.2  General formula (2): M represents, for example, Al, Ti, or Zr. R.sup.1 and R.sup.2 each represent a hydrogen atom or a specific group. m is an integer of 0 to 3, n is a valence of M, and n>m is satisfied.

A method includes: obtaining a raw steel golf shaft; and applying a colored coating directly to exterior surfaces of the raw steel golf shaft using an applicator. A golf club shaft includes: a raw steel tubular member; and a colored coating applied directly to exterior surfaces of the raw steel tubular member.

Minimum Federal Safety Standards for corrosion control on buried oil & gas pipelines stipulate that metallic pipes should be properly coated and have impressed-current cathodic protection (ICCP) systems in place to control the electrical potential field around a protected pipe. In certain examples described herein, electrically-conductive composites can be used and provide intrinsically-safe materials without the dielectric shielding issues of existing materials used with pipelines. As reacted by customary spray applications, the nanocomposite foams described herein are directly compatible with ICCP functionality wherever foam contacts the metallic pipe. Various compositions and their use with underground and/or above ground pipelines are described.