Abstract: The pressure sensor comprises the diaphragm, an electrode body, a housing, an inlet pipe, and a thermal buffer member. The diaphragm includes a pressure receiving surface configured to receive a pressure of a measured target fluid. The electrode body includes an electrode surface facing a rear surface of the pressure receiving surface with a gap interposed therebetween. The housing supports the diaphragm so as to form a measuring chamber by surrounding the pressure receiving surface. The inlet pipe is coupled to the housing and configured to guide the measured target fluid into the measuring chamber. The thermal buffer member is disposed on the inlet pipe and has a predetermined heat capacity. Accordingly, the diaphragm is unlikely to bend due to a rapid temperature change in a fluid guiding pipe disposed a fluid line.

Abstract: A ternary near eutectic alloy of Ni, Ti, Cr is described having a relatively low melting temperature of approximately 1230 deg. C. or less, suitable for fusing cracks in turbine blades and vanes without substantial risk of cracking during the repair process. Such an alloy is suitable for low temperature joining or repair of turbine blades since it contains the same components as typical turbine blades and vanes without foreign elements to lower the melting point of the repaired material or adversely affect the mechanical properties of the repaired component. Exclusion of boron eliminates the formation of brittle boron compounds, detrimental to the properties of the repair or seam.

Abstract: A solder joint manufactured of an alloy essentially composed of 0.01-7.6 wt % Cu, 0.001-6 wt % Ni, and the remaining of Sn. Each of Cu and Ni has a maximum concentration range. The lower limit of the range of Ni is 0.01 wt % and preferably 0.03 wt %. The upper limit of the range of Ni is 0.3 wt % and preferably 0.1 wt %. The lower limit of the range of Cu is 0.1 wt % and preferably 0.2 wt %. The upper limit of the range of Cu is 7 wt % and preferably 0.92 wt %. The invention includes the solder joint essentially having these compositions.

Abstract: A Ni—Fe-based alloy brazing filler material is provided comprising, in mass %, Fe: 21 to 40%; Cr: 10 to 30%; P: 7 to 11%; B: 0 to 5%; Si: 0 to 4.5%; V: 0 to 5%; Co: 0 to 5%; Mo: 0 to 5%; the balance being Ni and unavoidable impurities, wherein the mass ratio of Fe to P (Fe/P) is in a range of 2.6 to 5. The present invention provides a Ni—Fe-based alloy brazing filler material having a low melting temperature and a superior corrosion resistance and comprising raw materials that are relatively easily available, for use in manufacture of stainless-steel heat exchangers or the like.

Abstract: Methods of forming a structure for treating a vessel include providing a mandrel and braiding a plurality of filaments around the mandrel. The mandrel may include a strand having a longitudinal axis and a plurality of balls coupled to the strand along the longitudinal axis. Pairs of the plurality of balls may be spaced along the longitudinal axis. Braiding the plurality of filaments around the mandrel may include, during braiding, forming a plurality of bulbs around the plurality of balls and forming necks between pairs of the plurality of balls. The methods may include, after braiding the plurality of filaments, heat treating (e.g., shape setting) the plurality of filaments on the mandrel. Portions of the braided plurality of filaments may be secured to the mandrel, for example using bangles, wire, and/or adhesive.

Abstract: A method of forming a brazed joint is provided in which a surface portion of a first metal part is placed in contact with a surface portion of a second metal part to form a contact area therebetween, and the first and second metal parts include copper, silver and/or gold as the primary base metal(s) and at least the surface portion of the first metal part is a modified alloy of the primary base metal(s) having 0.5-12 wt. % phosphorus as a modifier. The surface portion of the first metal part is heated to a temperature sufficient to cause the phosphorus to wet the surface portion of the second metal part and to flow a low melting portion of the first metal part into the contact area by capillary attraction to form the brazed joint between the first and second metal parts.

Abstract: A brazing process, a braze arrangement, and a brazed article are disclosed. The brazing process includes brazing an article with a braze arrangement. The braze arrangement includes a first braze material and a second braze material, the first braze material having a first melting point and the second braze material having a second melting point, the first melting point differing from the second melting point. The brazed article includes a treatment region, a first brazed material positioned within the treatment region, and a second brazed material positioned distal from the article in comparison to the first brazed material. The first brazed material is formed by the first braze material and the second brazed material is formed by the second braze material.

Abstract: A method for assembling at least two parts made of silicon carbide-based materials by non-reactive brazing is disclosed. The two parts are contacted with a non-reactive brazing composition. The assembly formed by the parts and the brazing composition is heated to a brazing temperature sufficient to melt the brazing composition. The parts and the brazing composition are cooled so that, after solidification of the brazing composition, a moderately refractory joint is formed. The non-reactive brazing composition is a binary alloy composed, in mass percentages, of about 46% to 99% silicon and 54% to 1% neodymium.

Abstract: Thermally stable polycrystalline constructions comprise a body having a polycrystalline ultra-hard phase and a plurality of empty voids. A population of the voids can be filled with a reaction product. The body is substantially free of a catalyst material. The construction comprises a first support member attached to the body by a first braze material. A second support member is attached to the body and the first support member by a second braze material. The construction may include a third support member attached to the body that is integral or separate from one of the other support members. The braze materials used to attached the support members can be the same or different, as can be the materials used to form the different support members.

Abstract: A glazing is disclosed comprising at least one ply of glass having an electrically conductive component on at least one surface, and an electrical connector electrically connected to the electrically conductive component through a soldered joint, the solder of the joint having a composition comprising 0.5 wt % or more indium, wherein the electrical connector comprises a nickel plated contact for contacting the solder. Also disclosed are solders having a composition comprising 14 to 75 wt % In, 14 to 75 wt % Sn, to 5 wt % Ag, to 5 wt % Ni, and less than 0.1 wt % Pb. Also disclosed is use of a solder having a composition comprising 0.5 wt % or more indium to solder a nickel plated electrical connector to an electrically conductive component on the surface of a ply of glass. The aspects of the invention improve the durability of electrical connections on glazing.

Abstract: A method is provided for brazing a metal leadframe clip to an electrical resistance heating tip for an electrical resistance igniter, wherein the electrical resistance heating tip includes silicon carbide. The method includes forming a layer of SiO2/Al2O3 on a surface of the electrical resistance heating tip; applying a braze alloy paste between the layer of SiO2/Al2O3 and the metal leadframe clip; and heating the braze alloy, the metal leadframe clip and the electrical resistance heating tip to fuse the braze alloy.

Abstract: A method for joining, assembling, at least two parts made of silicon carbide-based materials by non-reactive brazing is provided. According to the method, the parts are contacted with a non-reactive brazing composition, the assembly formed by the parts and the brazing composition is heated to a brazing temperature sufficient to melt the brazing composition totally or at least partly, and the parts and the brazing composition are cooled so that, after solidification of the brazing composition, a moderately refractory joint is formed; wherein the non-reactive brazing composition is a binary alloy consisting in atomic percentages, of 60% to 66% silicon and 34 to 40% nickel. A brazing composition as defined above is also provided. A paste, suspension of braze alloy comprising a powder of the brazing composition and an organic binder is provided. In addition, a joint and assembly obtained with the foregoing method is provided.

Abstract: The disclosed method relates to manufacturing a heat exchanger which causes no brazing defects, and a heat exchanger manufactured by the method. The method relates to manufacturing a heat exchanger having an aluminum alloy tube defining a cooling-medium flowing passage and a copper alloy tube defining a water flowing passage, wherein a heat exchange is carried out between a cooling medium flowing through the cooling-medium flowing passage and water flowing through the water flowing passage. The aluminum alloy tube and the copper alloy tube are brazed to each other at a temperature of less than 548° C.

Abstract: A superior braze material, along with a method of producing the braze material and a method of sealing, joining or bonding materials through brazing is disclosed. The braze material is based on a metal oxide-noble metal mixture, typically Ag—CuO, with the addition of a small amount of metal oxide and/or metal such as TiO2, Al2O3, YSZ, Al, and Pd that will further improve wettability and joint strength. Braze filer materials, typically either in the form of paste or thin foil, may be prepared by a high-energy cryogenic ball milling process. This process allows the braze material to form at a finer size, thereby allowing more evenly dispersed braze particles in the resultant braze layer between on the surface of the ceramic substrate and metallic parts.

Abstract: The invention relates to a combination of an electrical heating element and a heat dissipater to be heated thereby; the heating element comprises a substrate, an insulating layer located on the substrate and a thick film conductor located on the insulating layer, wherein the second side of the metallic substrate is in contact with the heat dissipater, comprising a layer of metallic material on its face towards the heater and wherein the substrate is brazed to the heat dissipater and the surface of the heating element over which the thick film conductor extends, is substantially equal to the surface of the heat dissipater. The brazing leads to a permanent contact between the heating element and the heat dissipater, so that the possible tendency for warping as caused by the heating and cooling cycles will be withstood.

Abstract: According to one embodiment of the present invention, a method for preparing a brazed surface to receive a coating is disclosed. The method includes providing a brazed surface having a flux layer including a conversion coating and a powder component; and applying an aqueous solution containing a flux-removing agent to the surface to at least partially remove the powder component of the flux layer to obtain a treated brazed surface that is suitable for receiving a subsequent coating layer.

Abstract: Provided are a method for producing a clad material, and a clad material which can prevent a brazing filler metal layer from having a higher melting point so as to prevent the strength degradation and thermal deformation of a metal material, which can reduce production costs, which can reduce in thickness the layer to prevent sagging of the brazing filler metal upon brazing and which can improve press formability. A powder press-fixing machine is used to press-fix metal powder to surfaces of a base material uncoiled from a coil by an uncoiler. In order to provide a required composition of brazing filler metal, at least two kinds of metal powder is mixed, the mixed powder being press-fixed to the base material to form the brazing filler metal layer, the brazing filler metal constituting the layer having the composition such that copper is added with at least phosphor to lower a melting point of the same relative to that of copper, thus producing the clad material.

Abstract: A high power laser source comprises a bar of laser diodes having a first coefficient of thermal expansion CTEbar on a submount having a second coefficient CTEsub and a cooler having a third coefficient CTEcool. The submount/cooler assembly shows an effective fourth coefficient CTEeff differing from CTEbar. This difference leads to a deformation of the crystal lattice of the lasers' active regions by mechanical stress. CTEeff is selected to be either lower than both CTEbar and CTEcool or is selected to be between CTEbar and CTEcool. The submount may either comprise layers of materials having different CTEs, e.g., a Cu layer of 10-40 ?m thickness and a Mo layer of 100-400 ?m thickness, or a single material with a varying CTEsub. Both result in a CTEsub varying across the submount's thickness.

Abstract: A method is disclosed of forming a wheel tip assembly for a compactor wheel assembly used on a compactor machine. The method may include forming a tip portion of white cast iron, and forming a base portion configured to be connected to a wheel rim. The tip portion may be brazed to the base portion to thereby form the wheel tip assembly. Also disclosed is a method of forming a compactor wheel assembly for use on a compactor machine, which includes the wheel tip assembly.

Abstract: A method for hardfacing a metal component surface (14, 16), especially a shroud surface of a turbine blade made of a TiAl alloy, with at least one metal material (18, 20), in particular a Co—Cr alloy. The hardfacing coating is produced separately from the component surface and is then joined to the component surface in a high-temperature soldering process. A turbine blade including such a hardfacing coating, primarily in a shroud region (2).

Abstract: The invention relates to a method for producing a blade tip plating (20) on a blade (10) for a turbomachine, in particular on a high-pressure rotating compressor blade for a gas turbine, comprising the following steps: —producing a particle composite material (24) having embedded hard material particles (18); —placing the panicle composite material (24) on a solder (30) applied to the blade tip (16); and—healing the solder (30).

Abstract: A method of providing boiler tubes with a variably ribbed interior surface. A suitably dimensioned spindle with a channel having a desired pattern on the exterior surface of the spindle is wrapped by a wire-like member in the channel so as to form thereon a reverse image of the desired, patterned tube ribbing. A brazing metal paste is applied on the exterior surface of the wire-like member and the spindle is inserted into a tube to be ribbed. The wire-like member is released from the spindle to allow the wire-like member to conform to the inner surface of the tube, and the tube is heated to the melting temperature of the brazing metal paste so that the wire-like member bonds to the inner surface of the tube, and the metal tube is then cooled.

Abstract: Provided is an apparatus for performing a reflow process of a solder ball provided to a semiconductor chip. The reflow apparatus may include a coil, a support member and a moving member. The coil may receive a current from a power supply to heat the solder ball using an induced heating method. The support member may be disposed on the front or the rear of the coil and may support a printed circuit board on which a semiconductor chip is mounted. The moving member may move the printed circuit board so that the printed circuit object passes through an internal space surrounded by the coil.

Abstract: A permanent adapter for incandescent lighting fixtures can removably receive LEDs but cannot itself be removed from the fixture.

Abstract: Nickel-based low-melting boron-free braze alloy compositions include varying amounts of the alloying elements cobalt, chromium, hafnium, zirconium together with optionally titanium and aluminum. The braze alloys can be used as a stand alone braze alloy or in combination with other filler alloys to create braze joints with desirable joint geometries and properties. The braze alloy compositions can be used to join and repair different superalloy articles such as gas turbine components for high temperature applications.

Abstract: The invention relates to a method for soldering components, in particular heat exchanger, in particular made of aluminum materials, aluminum alloys or wrought alloys, in a soldering furnace, in particular a continuous soldering furnace or a batch-type soldering furnace, which comprises a muffle, which is flushed with protective gas in order to create a protective atmosphere. In order to make the production of soldered components easier, during the soldering of the components the muffle is supplied with such a greatly increased amount of gas, in particular protective gas or reaction gas, that a low-oxygen protective atmosphere is created.

Abstract: A method including disposing a first end plate adjacent to a second end plate, wherein the first end plate and second end plate each define a pattern of apertures. The first end plate is aligned with the second end plate such that the pattern of apertures in the first end plate is substantially aligned with the pattern of apertures in the second end plate. The method includes placing an end portion of each of a plurality of micro tubes in contact with the first end plate, the micro tubes being substantially vertically disposed and substantially perpendicular to a top surface of the first end plate, so as to place the micro tubes on the first end plate, and vibrating at least one of the micro tubes while the micro tubes are on the first end plate, thereby causing the micro tubes to insert into and through respective aligned apertures of the patterns of apertures in the first end plate and the second end plate.

Abstract: A direct metal laser sintered material including a substrate formed from a laser sintering process, the substrate having at least one surface, and a cladding material brazed onto at least a portion of the surface.

Abstract: A layered structure comprising a base structure having a major surface, and a brazing layer secured to the major surface of the base structure, where the brazing layer is applied to the major surface prior to positioning the layered structure in contact with a turbine engine component.

Abstract: Method of making a low resistivity electrical connection between an electrical conductor and an iron pnictide superconductor involves connecting the electrical conductor and superconductor using a tin or tin-based material therebetween, such as using a tin or tin-based solder. The superconductor can be based on doped AFe2As2, where A can be Ca, Sr, Ba, Eu or combinations thereof for purposes of illustration only.

Abstract: A method for brazing a metallic honeycomb body (1) for exhaust gas treatment, includes at least: a) pretreatment of a honeycomb body (1) at a temperature above 400° C.; b) cooling the honeycomb body (1); c) brazing the honeycomb body (1) at a temperature in a range of from 1050° C. to 1100° C. under atmospheric pressure; and d) cooling the honeycomb body (1). A suitable apparatus for carrying out the method is also provided.

Abstract: An article, as well as the process of producing the article, wherein the article is produced by a process that includes the steps of providing a substrate; applying a viscous coating that contains a ferromagnetic or paramagnetic component to at least a selected portion of the substrate; causing the selected portion of the substrate to be under the influence of a magnetic field; and transforming the viscous coating so as to form a wear-resistant coating on the substrate.

Abstract: In a method for soldering contact wires to a side of a solar cell for producing the electrical contact-making, the solar cells have at least one metallic strip-shaped region. A contact wire is soldered onto the latter for the electrical connection of the solar cell, wherein the soldering duration or the duration of the energy input externally onto the soldering region is very short and is less than 800 ms.

Abstract: A body has at least one first metallic body part and one second metallic body part. The first body part is coated with a nickel-phosphor layer. The first and second body parts are assembled. The first and second body parts are heated such that a soldered connection is produced between the first and second body part as a result of the nickel-phosphor layer.

Abstract: A bonding structure and method of manufacturing the same are provided. The bonding structure of a substrate and a component include an electrode formed of metal powder and a resin component on the substrate. A low melting point solder that bonds the component to the electrode. The metal powder contains at least spherical metal powder and flake metal powder. The low melting point solder is infiltrated from the surface of the electrode into the electrode.

Abstract: The invention relates to an aluminum alloy strip or sheet with the following composition (% by weight): Si 0.3-1.0; Fe<1.0; Cu 0.3-1.0; Mn 0.3-2.0; Mg 0.3-3.0; Zn<6.0; Ti<0.1; Zr<0.3; Cr<0.3; Ni<2.0; Co<2.0; Bi<0.5; Y<0.5, other elements <0.05 each and 0.15 total, the remainder being aluminum, coated on at least one face with an aluminum brazing alloy containing 4 to 15% of silicon and 0.01 to 0.5% of at least one of the Ag, Be, Bi, Ce, La, Pb, Pd, Sb, Y elements or mischmetal. Sheets and strips according to the invention can be used particularly for fluxless brazing of heat exchangers.

Abstract: Various thermal interface structures and methods are disclosed. In one aspect, a method of manufacturing is provided. The method includes providing plural carbon nanotubes in a thermal interface structure. The thermal interface structure is soldered to a side of a semiconductor chip. In another aspect, an apparatus is provided. The apparatus includes a thermal interface structure that has plural carbon nanotubes. A semiconductor chip is soldered to the thermal interface structure.

Abstract: A wear-resistant article of manufacture, such as a screen, is produced by the method of providing a screen having a front face, a rear face, and openings extending through the screen from the front face to the rear face, contacting at least a portion of the screen with a coating material comprising ferromagnetic or paramagnetic hard particles and a braze material, subjecting at least a portion of the screen to a magnetic field during at least a portion of the contacting step, and transforming the coating material to a wear-resistant coating comprising the hard particles distributed in the braze material.

Abstract: A nozzle body has a first nozzle body element (1) and a second nozzle body element (3). The first nozzle body element (1) is provided with a first nozzle-needle recess (10) accommodating an nozzle-needle (15) and a first guide area (8) for the nozzle-needle (15). In a first process step, the first nozzle body element (1) is assembled with the second nozzle body element (3). Brazing solder having a working temperature in the range of the tempering temperature of the first nozzle body element (1) is supplied to an assembly area (5). The assembly area (5) is defined between the second nozzle body element (3) and the first nozzle body element (1). The assembled first nozzle body element (1) and second nozzle body element (3) is subjected to tempering during which the tempering temperature of the first nozzle body element (1) is reached.

Abstract: A composite body which can withstand high thermal stresses is formed by high-temperature soldering at least a part of a high-temperature-resistant, metallic or nonmetallic component and at least a part of a high-temperature-resistant, nonmetallic component. Prior to soldering, a metallic barrier layer, which is impervious to the solder melt, of one or more elements selected from the group consisting of V, Nb, Ta, Cr, Mo, W, Ti, Zr, Hf and alloys thereof, is deposited on that surface of each nonmetallic component which is to be soldered. Solder material, barrier layer and soldering conditions are adapted to one another in such a manner that during the soldering operation the metallic barrier layer remains at least partially in the solid state, so that after the soldering operation it is still present in a thickness of at least 10 ?m at least over the majority of the soldering surface.

Abstract: The invention relates to a method of brazing a Ti—Al alloy. According to the invention, a layer of nickel (2) is disposed between a part (1) which is made from titanium aluminide and a brazing sheet (3), such as to enable: the aforementioned part (1) to be brazed to another metallic material (4) without the aluminium diffusing from one to the other; and a stable link with good mechanical strength to be produced. The invention can be used for the assembly of aircraft engine parts which are made from titanium aluminide and nickel-based superalloy.

Abstract: Nickel-based low-melting boron-free braze alloy compositions include varying amounts of the alloying elements cobalt, chromium, hafnium, zirconium together with optionally titanium and aluminum. The braze alloys can be used as a stand alone braze alloy or in combination with other filler alloys to create braze joints with desirable joint geometries and properties. The braze alloy compositions can be used to join and repair different superalloy articles such as gas turbine components for high temperature applications.

Abstract: In conventional Sn/Sb type brazing filler metals, there are disadvantages that large grains in a ?? phase are likely to deposit and that cracks are likely to occur in the elements and the bonded portion, and that voids are formed when the above described special coating is provided on the die bonding plane of the semiconductor element. The brazing filler metal of the present invention comprises 5 to 20 weight % of Sb and 0.01 to 5 weight % of Te, with the balance being Sn and incidental impurities, or a brazing filler metal comprises 5 to 20 weight % of Sb, 0.01 to 5 weight % of Te, 0.001 to 0.5 weight % of P, with the balance being Sn and incidental impurities.

Abstract: A system for restoring a metal component with a brazing alloy, the system comprising an induction coil configured to extend around a portion of the metal component and at least a portion of the brazing alloy, a motion assembly configured to cause relative movement between the metal component and the induction coil along a first axis, and a heat exchanger assembly supported by the motion assembly and configured to form a thermal gradient along the metal component in a direction along the first axis.

Abstract: A cradle for a stator bar including: a platform having a length extending at least two-thirds the stator bar; a plurality of clamps arranged along the length of the platform and at least one end turn gripper at each end turn of the stator bar, wherein the end turn clamps are arranged on adjustable arms of the platform, and a coupling at a center of the platform, wherein the coupling engages an elevator device.

Abstract: An interconnect for electrically connecting a first and second cell of a tubular fuel cell bundle having a body with an anode contact and a cathode contact extending therefrom. The anode contact is formed to follow a contour of an anode portion of the first cell. The cathode contact is formed to follow a contour of a cathode portion of the second cell. A contact aid may be applied to the anode contact and/or cathode contact for securing the contact to the respective portion of the fuel cell bundle. The interconnect preferably completes a series connection between the first and second cells.

Abstract: A method for metallurgically bonding a stator bar to a coupling to reduce the incidence of leak paths resulting from corrosion. The stator bar comprises strands through which a liquid coolant can flow. Adjacent ends of the strands are received in an interior cavity of the coupling through an opening in the coupling. A joining material is provided on a first portion of the stator bar within the coupling opening and adjacent the ends of the strands. The first portion is heated to melt the joining material. At essentially the same time, a second portion of the stator bar outside the coupling is also heated. Once the joining material is suitably molten, the first portion is allowed to cool while the second portion remains heated, thereby causing the joining material nearest the ends of the strands to solidify first.

Abstract: A select solder machine configured to solder a circuit board using a solder material. The select solder machine includes a solder head movable with respect to the circuit board. The solder head is configured to position the solder material with respect to the circuit board to solder the circuit board. The select solder machine further includes a support member configured to support the circuit board in a position adjacent the solder head, and a heating member configured to heat the circuit board. The heating member is located above the circuit board.

Abstract: A brazing product for low temperature fluxless brazing comprises a filler metal-forming composition which melts in the range from about 380-575° C. The filler metal-forming composition comprises zinc optionally in combination with aluminum and/or silicon, and further comprises at least one braze promoter selected from nickel, cobalt, iron and palladium. The filler metal-forming composition may comprise a single layer or may comprise a number of distinct layers. The brazing product may take the form of a brazing preform or a brazing sheet or casting in which the filler metal-forming composition is deposited on a non-consumable substrate. The substrate may preferably comprise aluminum or an aluminum alloy, but may instead be comprised of one or more metals other than aluminum.

Abstract: A method for producing a blade tip armor plating on a blade of a turbomachine, in particular on a high-pressure compressor rotary blade of a gas turbine, having the following steps: a) provision of a blade made of a nickel base material; b) application of a solder to a blade tip of the blade, the solder being a nickel base solder; c) application of hard material particles of cubic boron nitride to the solder, the hard material particles of cubic boron nitride being coated with titanium or with a titanium base material; d) fusion of the solder in a vacuum in order to form a matrix that at least partially surrounds the hard material particles; and e) fixing of the blade tip armor plating through cooling.