Abstract:
A slip molding apparatus (10) for lining a pipe (12) includes a dispense head (20) adapted to engage an interior surface (14) of a pipe (12) and to dispense a lining material, a slip mold (38) pulled by the dispense head (20) and having a leading end (42) and a trailing end (44), wherein the trailing end (44) has a greater diameter than a diameter of the leading end (42), at least one camera (58) disposed on the dispense head (20) to provide a view of the interior surface (14) of the pipe (12), a guide (46) connected to the dispense head (20) and the slip mold (38) for guiding the lining material dispensed by the dispense head (20) about the slip mold (38), and a movable diverter (52) on the slip mold (38) cooperating with the guide (46) to divert a flow of lining material dispensed by the dispense head (20) about the slip mold (38).
Abstract:
The present is a method to radially displace liquid liner inside a pipe, comprising flowing the liner around a distributive body placed within a pipe gas stream. As the gas streams past the distributive body, the liner coats the pipe homogeneously from top to bottom.
Abstract:
A portable delivery system for delivering a multiple part coating composition for in situ coating an internal pipeline surface comprises a housing including a controller, at least two composition containers, a first hose, a hose delivery system, a pump, and at least two mass flow meters. The composition containers contain differing compositions, and each container includes a composition depth monitoring apparatus. The first hose comprises at least two additional hoses, where two of the additional hoses each deliver one of the compositions to a composition applicator. The hose delivery system stores and delivers the first hose to the pipeline, and the pump is coupled to the composition containers and the first hose. The mass flow meters are each coupled to a pump outlet corresponding to an outlet of the respective first or second composition container.
Abstract:
Die Erfindung betrifft eine Vorrichtung zu Beschichtung der Innenoberfläche von Me¬ tallrohren mit einem Thermoplastüberzug einschließlich einer Strangpressanlage und einer Mehrzweckdüse. Damit der Material- und Arbeitsaufwand bei der Herstellung der Beschichtung verringert und die Genauigkeit und die Eigenschaften der Be¬ schichtung verbessert werden, sieht die Vorrichtung vor, dass die Mehrzweckdüse einen Zufuhrkanal aufweist und mit einem Verteilerkopf und einem Aufsatzstück ver¬ sehen ist, dass der Verteilerkopf mit dem Aufsatzstück austauschbar ist, dass seine Ausführung es ermöglicht, Metallrohre mit unterschiedlicher Länge, unterschiedlichen Innendurchmessern und unterschiedlicher Beschichtungsstärke zu beschichten, wo¬ bei die Länge der Rohre nur durch die Länge des Zufuhrkanals begrenzt ist, dass der Verteilerkopf dabei mit einer Bohrung versehen ist, die mit dem Zufuhrkanal verbun¬ den ist, dass der Zufuhrkanal in Form eines Stabs mit einer Axialbohrung ausgebildet ist und mindestens vier Rohrheizkörper enthält, die in Aufnahmenuten des Stabs an¬ geordnet sind und dass dabei die Außenfläche des Aufsatzstücks mindestens bis zur 7. Rauhigkeitsklasse vorbehandelt ist, um eine glatte Beschichtungsfläche zu errei¬ chen. Das Verfahren zum Herstellen der Beschichtung ist dadurch gekennzeichnet, dass der Zufuhrkanal vor dem Einpressen von Thermoplast mittels im Kanal eingebauter Rohrheizkörper bis zu einer Temperatur erhitzt wird, welche um 20 bis 30° C höher ist als die Temperatur, bei der Thermoplast zähflüssig wird, dass Kühlflüssigkeit bzw. Kühlwasser aus der Wasserleitung in den Hohlraum eines Aufsatzstücks unter Druck gefördert wird, um die Wände abzukühlen und die Temperatur des Aufsatzstücks von maximal 40° C aufrechtzuerhalten und dass dabei die Erhärtung der Beschichtung und die Herstellung einer gleichmäßigen Struktur der Beschichtung und eine feste Adhäsion mit dem Metallrohr erreicht werden.
Abstract:
The present invention relates to coating of tubes, and more particularly to a system and method for coating and/or renovating deteriorated or pitted tubes to extend tube life and enhance performance. Using this system and method a thin coating is applied to the interior of a tube such that the coating is uniform in thickness and covers all regions of the tube. The coating material may be selected to minimize changes in heat transfer or may be selected to provide for the change in working fluid within the tube such that the working fluid does not negatively interact with the tube material.
Abstract:
The inventive device ( wad hereafter) is made of elastic, flexible, airproof and waterproof, solid, integral or composite solid material, in particular of foamed polyethylene, and has a cylindrical shape provided with grooves and slots on the surface thereof or is devoid thereof. The inventive wad cleans the internal surface of a pipe by the front-end part and the external surface thereof when passing therethrough or applies a protective coating to the internal surface of a pipeline. Said device is moved inside the pipe by a working body in the form of compressed air (gas) or a liquid under pressure. Said invention uses the elastic flexible, airproof or waterproof properties of a material, in particular foamed polyethylene, and the capacity thereof to modify the shape by external forces and reshape without frozen strain or with small amount thereof, the external forces being eliminated. In order to introduce the device (wad) inside the tube a mechanism provided with a through inside orifice can be used. Said orifice has on one end thereof a cylindrical part having a large diameter which contains one or several wads, a cylindrical part having a lesser diameter on the other side through which the wad penetrates into the pipe, and a tapered junction (contraction) from the larger part to the narrow part.
Abstract:
A process is described to realize a film made of an adequate resinous material on the internal surface of metallic pipes, particularly those made of aluminium, to protect them and further allow for particular uses for which they could not be employed otherwise. These pipes are preferably applied in the hydrothermosanitary field.
Abstract:
By means of a part (11) which is displaced into the pipe (10) laid and formed by welding straight or bent conduits, a coating material introduced inside the pipe (10) is applied to the inner surface and is hardened thereon. The coating material is pushed by a flexible tube (15) up to the moving part where it is sprayed by means of nozzles (17, 18).
Abstract:
A device for coating a cylinder includes a coating head capable of being inserted into the cylinder, a plurality of coating guns which are provided on the coating head and are configured to discharge a coating material in a direction intersecting a longitudinal direction of the coating head, and a rotating cover which, when the coating material is discharged from one of a first coating gun and a second coating gun among the plurality of coating guns, is configured to cover the other of the first coating gun and the second coating gun, in which the plurality of coating guns are connected to coating material supply devices of different systems, respectively.
Abstract:
Disclosed is an apparatus and method for forming lubricant recesses having minute configurations by applying a photolithograph method in a curved inner surface, such as a cylinder bore surface of a cylinder block, the inside of a cylinder liner, the inside of a compressor cylinder, a big end of a connecting rod, a big end bearing, a shaft insertion hole of a rocker arm, or the like in an internal combustion engine.