Abstract: Induction heating facilitated coating systems and processes for pipes overcome corrosion and erosion of the pipes at extreme temperatures and pressures in applications including oil and gas downhole tubulars and pipelines as well as processing facilities. Being based on vitreous fused inorganic compounds, the present invention achieves very high corrosion resistance at remarkably modest cost. Attractive economics and immunity to chlorides and moisture permeation at extreme concentrations and temperatures also make it well suited to desalination plants and potable water piping applications. Due to its extreme temperature resistance, it also is very well suited for geothermal wells. Additionally, due to its characteristic smooth durable surface, the present invention is ideally suited for applications involving the opposite of corrosion, namely scaling problems, such as fouling in sewage systems and scale buildup in heavy oil wells.

Abstract: Systems and methods are presented herein for a method of attaching a strip to a housing. An internal support member is inserted into a collapsible housing, such that it is arranged along a longitudinal axis of an inner surface of the collapsible housing. An outer support member is arranged along an outer surface the collapsible housing opposite the internal support member. A strip is positioned along the outer surface using the outer support member and the internal support member. Then the strip is permanently welded to the outer surface using a welding element. Welding is performed by a welding element located in one (or both) of the internal support member or the outer support member.

Abstract: A method for the gap-free joining of two workpieces is provided. The method comprises the following steps: a. the workpieces to be joined are brought into contact with one another so that a joining point is formed, b. the joining point is geometrically fixed by means of a film, c. the workpieces are joined in a gap-free manner, wherein the step a. and the step b. can be interchanged.

Abstract: The invention relates to a device for continuous treatment of a metal strip (1), in particular a metal strip consisting of aluminum or an aluminum alloy, or consisting of a non-ferrous metal or a non-ferrous metal alloy, said device comprising at least one temperature control device (2) through which the metal strip (1) is guided in a floating manner, and comprising at least one strip position regulation unit (7), by means of which the position of the metal strip (1) can be controlled or regulated on the belt movement plane (E) and transversely to the strip running direction (B), wherein the temperature control device (2) has at least one entry-side heating section (3) and an exit-side cooling section (4).

Abstract: A die assembly (10) for extruding a polymeric coating onto a wire so as to impart a matte finish to the coating surface is provided. The die assembly (10) comprises: A) a die tip (13) comprising a tubular channel (22) through which a wire can pass, the channel (22) positioned along the central longitudinal axis (26) of the die assembly (10); B) a die body (12) comprising a trunk (15) and a head (16), the head (16) comprising a tubular channel (20), the head tubular channel (20) comprising a die land (21), the trunk (15) positioned about the die tip (13) so as to define an annular space (25) between the exterior surface (23) of the die tip (13) and the interior surface (24) of the trunk (15); C) a die holder (11) positioned about and in contact with the exterior surface (17) of the trunk (15); and D) a radiator (14) positioned about and in contact with the exterior surface (19) of the die land (21) of the die head (16).

Abstract: Apparatus and method are provided for electric induction heating and/or stirring of a molten electrically conductive composition in a containment vessel with the apparatus being removably insertable in the molten composition. An induction coil embedded in refractory or a coating is submerged in the composition and used to heat and/or stir the molten composition either externally or internally to the refractory or coating.

Abstract: A method and a device (1) for bonding a metal fairing (6) to protect a leading edge of an aircraft airfoil (7), the metal fairing (6) is designed to be bonded against the airfoil (7) with the help of an adhesive (9). The bonding device (1) is remarkable in that it includes a rigid yoke (2) having inserted therein induction heater elements (30) for heating the metal fairing (6).

Abstract: A high frequency induction-heating device 3 of the apparatus 1 for heating work includes a pair of opposite work coils accommodated within the coil casings 17 and 19 respectively. The casings 17 and 19 can be displaced in a unit by a motor provided under the device. Thus, the distance between the pair of work coils, and the distance between the work (W) and each work coil can be adjusted. The apparatus includes a plurality of heating devices 3 to which high frequency power sources are provided respectively. The apparatus and method for heating of a work with the apparatus is capable of treating a plurality of works (W) continuously under controlled conditions on work coil shapes and positions depending on the size and/or the shape of the works (W).

Abstract: A process for the production of multi-layer metal composite tubes (10), wherein a metal strip is shaped to form a tube (16) and butt-welded along its two longitudinal edges. A plastic inner layer (12) is applied by extrusion in firmly adhering manner to the inside (12) of the metal tube (16) and a plastic outer layer (14) is applied by extrusion in firmly adhering manner to the outside (26) of the metal tube (16).

Abstract: The invention relates to an apparatus and a method for heating a workpiece of an inductively heatable material, for example a turbine blade. Such a turbine blade consists of a massive blade base and a low-mass blade leaf. To enable the blade base and blade leaf to be heated in a manner appropriate to each an induction coil is provided, which surrounds the blade base and the blade leaf. By suitable choice of the alternating currents which flow through the induction coil and/or through the interposition of a susceptor between turbine blade and induction coil, the blade base and blade leaf can be heated in an appropriate manner.

Abstract: A method for manufacturing a multiple walled tube comprising a rolling of a plated metal strip through at least two complete revolutions to form a tube having at least a double wall which has a plated layer on the inside of the tube, said rolling being followed by a heating of the tube to cause the surface of the tube walls, which are in contact with one another, to be brazed and wherein said metal strip is plated on one side, the other side being formed by the steel of the metal strip and wherein said brazing is realised by brazing directly the plated side on the steel.

Abstract: For arc welding a sleeve 3 to a workpiece surface 2, a sleeve holder 1 is surrounded by a field-former unit which contains a magnet coil 4, a magnetic flux return member 6 and a field former 7. A magnetic field is generated with a field component extending radially to the sleeve 3 within the welding gap to set the arc in rotation. To ensure a constant magnetic flux, the field-former unit, in particular its magnet coil 4, is cooled by a temperature-controlled cooling medium circulated through the welding head.

Abstract: A tube for a cracker unit in which ethylene is produced withstands, without oxidizing or losing its strength, the elevated temperatures required to effect cracking, yet retards coking. The tube has a shell formed from stainless steel or high nickel alloy and a liner formed from an iron-aluminum alloy. The liner retards the deposit of carbon and its build up known as coking. To form the tube, a high alloy ingot is bored to provide a bore that extends through its center. Then a weld overlay is applied to surface of the bore, with the overlay being derived from a weld metal containing at least 16% aluminum and the balance essentially iron. Thereafter, the ingot is heated to its hot working temperature and extruded through sets of opposed rollers, with the direction of advance being in the direction of the bore. The extruding transforms the ingot into a lined tube.

Abstract: A hot dip coating pot for containing a coating material in a liquid state. The coating pot comprises a substantially horizontal bottom and substantially vertical side walls. The bottom and the side walls define a first interior volume for containing the coating material. The bottom wall and a lower portion of each of the side walls defines a bottom portion which is separable from an upper portion of the side walls. The bottom portion has a predetermined interior volume less than the first interior volume.

Abstract: Multisheet SPF parts with braze joints at selected locations are produced with improved energy efficiency and at lower cost. The parts include a core defined with intermittent welds between two or more core sheets and aerodynamically smooth facing sheets brazed to the core. The manufacturing process includes heating the multisheet pack to its superplastic forming range below the melting point of the braze alloy, superplastically forming the pack to define braze joints having unmelted braze alloy; increasing the temperature to the braze temperature of the braze alloy, and cooling the pack below the superplastic range to freeze the braze alloy in the braze joint.

Abstract: A method and apparatus for 360.degree. induction heating of a can body to cure or partially cure a protective coating applied thereto. The can bodies are inductively heated by placing them in a medium frequency, oscillating magnetic field generated by a multiple turn induction coil helically wound around the transport path of the can body. By using a medium-frequency field and by centering the can bodies with respect to the induction coil, the can bodies may be evenly and uniformly heated around 360.degree. of their circumference.

Abstract: A galvanizing apparatus comprising a vessel for containing a melt of molten metal. The vessel includes at least one conical projection in its side walls around which an induction heating coil is wound to generate a uniform and continuous stirring pattern of molten metal that penetrates deeply into the pot. In a second embodiment, the galvanizing vessel has no projections from its side walls, but comprises instead one or more flat inductors disposed on the exterior wall of the vessel. The flat inductor is surrounded by magnetic return shunts for directing the magnetic force field created by the inductor.

Abstract: Multisheet SPF parts with braze joints at selected locations are produced with improved energy efficiency and at lower cost by heating the multisheet pack to its superplastic forming range below the melting point of the braze alloy, superplastically forming the pack to define braze joints having unmelted braze alloy; increasing the temperature to the braze temperature of the braze alloy, and cooling the pack below the superplastic range to freeze the braze alloy in the braze joint.

Abstract: A bendable synthetic resin tube includes a tube member made from thermoplastic synthetic resin, and a high-frequency induction heat generating layer which includes a heat generating member chiefly containing a material capable of inductively generating heat when subjected to high-frequency wave and a binder made from a material having the same properties as that of the tube member. The high-frequency induction heat generating layer extends continuously or noncontinuously along an entire cylindrical surface of the tube member in a longitudinal direction of the tube member. To bend this synthetic resin tube, a high-frequency wave is first irradiated onto only a bending portion of the synthetic resin tube, so as to heat and soften the bending portion. Then, the softened synthetic resin tube is deformed at the bending portion using a bending die. The bending portion is cooled down immediately after finishing the bending deformation of the synthetic resin tube.

Abstract: Multisheet SPF parts with braze joints at selected locations are produced with improved energy efficiency and at lower cost by heating the multisheet pack to its superplastic forming range below the melting point of the braze alloy, superplastically forming the pack to define braze joints having unmelted braze alloy; increasing the temperature to the braze temperature of the braze alloy, and cooling the pack below the superplastic range to freeze the braze alloy in the braze joint.

Abstract: A hot dip batch coating pot for containing a coating material in a liquid state. The pot comprises a container portion having a horizontal bottom and vertical side walls, with the bottom and said side walls defining an interior volume for containing said coating material. At least one coreless induction furnace is mounted on a side wall of the container portion. The coreless induction furnace defines an interior volume in communication with the interior volume of the container portion for inductively heating the coating material. The coreless induction furnace is disposed at an angle to the vertical.

Abstract: A heater employs a ferromagnetic or like material heated by a varying magnetic field to heat the ferromagnetic material wherein the ferromagnetic material has a large cross-section comprised of many members of small cross-section insulated from one another and wherein for medical applications each member may be surrounded by a heat conductive electrically conductive coating.