Abstract: A braze preform includes a filler metal, a flux in communication with the filler metal, and a luminescent material covering at least a portion of the filler metal. The luminescent material is equal to or less than 0.15% total weight of the braze ring. Further, the luminescent material includes at least one of a luminescent ink, a solvent, and a binder. The solvent may be one of a bromide-based solvent or a non-chlorine-based solvent. The binder may be an acrylic resin.

Abstract: A braze preform is provided that includes a filler metal and a luminescent material that covers at least a portion of the filler metal and that can luminesce when exposed to a black light. The luminescent material may include a luminescent ink and a solvent that are mixed together before being applied to filler metal. Presence of the braze preform may be determined using automated equipment by detecting luminescence of the braze preform with a sensor. A decision may be made on whether to advance a parts assembly for brazing based on the determination of presence or absence of the braze preform on such parts assembly.

Abstract: A flux coating composition may include a composition paste including an elastomer solution mixed with a flux powder or a flux paste. When the composition is heated during a brazing operation, the composition yields no metal oxides and ?50 ppm of carbon, ash, fumes, smoke, or other by-product contaminants. The flux may include a binder with an acrylic resin and a plurality of synthetic rubber compounds.

Abstract: Systems and methods for evenly applying a flux coating to any number of different shaped parts with a single machine are described. The systems and methods provide advantages in that the flux coating may be applied accurately within 2% to 4% of desired thickness with 85% to 95% of the total yield of flux being applied, this minimizing waste. Thousands of parts may be batch treated with a single machine without operator input.

Abstract: A homogenous brazing material essentially consisting of relatively low amounts of silver and nickel together with copper, zinc, and other constituents is provided. The brazing material has a working temperature exceeding 630° F. and is preferably between about 1250° F. and 1500° F. The brazing material preferably has about 30 percent by weight of silver, about 36 percent by weight of copper, about 32 percent by weight of zinc, and about 2 percent by weight of nickel. The addition of nickel in the above-specified amount improves resistance against interface corrosion in aqueous solutions, aids in the strength of the alloy, and provides improved wettability on ferrous and non-ferrous substrates. The brazing material may also include a flux, such as a core or a coating.

Abstract: Systems and methods for evenly applying a flux coating to any number of different shaped parts with a single machine are described. The systems and methods provide advantages in that the flux coating may be applied accurately within 2% to 4% of desired thickness with 85% to 95% of the total yield of flux being applied, this minimizing waste. Thousands of parts may be batch treated with a single, machine without operator input.

Abstract: Systems and methods for brazing and soldering using low and non-silver based filler metals are described. The present invention includes methods and systems for brazing and soldering using copper based or bronze type filler metals in lieu of silver containing filler metals. The systems and methods provide advantages in that the bronze filler metals are substantially cheaper than silver alloy filler metals that are commonly used. Furthermore, the present invention uses a low-temperature, water-soluble flux that provides for easier cleanup after the completion of the brazing process. Additionally, the present invention provides significant advantages over traditional copper brazing in that it allows for a one-piece workflow and eliminates the need for large component pieces and filler metal inventories. This results in a significant decrease in capital expenditures and utility costs.

Abstract: A homogenous brazing material essentially consisting of relatively low amounts of silver and nickel together with copper, zinc, and other constituents is provided. The brazing material has a working temperature exceeding 630° F. and is preferably between about 1250° F. and 1500° F. The brazing material preferably has about 30 percent by weight of silver, about 36 percent by weight of copper, about 32 percent by weight of zinc, and about 2 percent by weight of nickel. The addition of nickel in the above-specified amount improves resistance against interface corrosion in aqueous solutions, aids in the strength of the alloy, and provides improved wettability on ferrous and non-ferrous substrates. The brazing material may also include a flux, such as a core or a coating.

Abstract: A coating composition and its use in a metallization process that facilitates bonding of brazing filler metals to treated refractory surfaces, such as ceramics. The coating can be applied in preselected areas of the refractory surface to define a target area for brazing. In one embodiment, the coating composition is applied to a refractory material prior to brazing, the composition including (i) a group IVB transition metal component selected from the group consisting of a group IVB transition metal, a hydride thereof, and mixtures of group IVB metals and/or hydrides thereof, (ii) a binder material, and (iii) a fluid carrier, disclosed embodiments, the group IVB transition metal component is titanium, and the binder material is a combination of a styrene block copolymer and a hydrocarbon resin.

Abstract: A wire preform suitable for use in brazing components to one another. The preform is made from a length of wire having a core of flux material, and a longitudinal seam or gap that extends over the length of the wire. The seam is formed so that when heated, the flux material flows from the core and out of the seam. The length of wire is in the form of a loop having a certain circumference so that when the preform is heated, the flux material disperses uniformly from the circumference of the preform for evenly treating the surface of a component on which the preform is placed. The length of wire may include a silver alloy.

Abstract: A container for housing related articles and materials, such as a coil of solder wire, soldering flux and a flux application brush, facilitates merchandising, use and storage of the articles and materials therein. The container comprises a base member and a removable outer cover. The base member comprises a flat circular base plate having a hollow cylindrical projection on one side thereof on which the coil is placed and within the hollow recess thereof flux is stored. In one embodiment, the flux is contained in the hollow projection itself and an inner removable cap is provided to close off the open end of the projection. In another embodiment the flux is contained in a small capped jar which is disposed in the recess. The projection includes an open-ended storage compartment extending transversely thereinto in which the brush is stored. In the said one embodiment, the storage compartment is separated by a wall from the recess containing the flux.

Abstract: A wire preform suitable for use in brazing components to one another. The preform is made from a length of wire having a core of flux material, and a longitudinal seam or gap that extends over the length of the wire. The seam is formed so that when heated, the flux material flows from the core and out of the seam. The length of wire is in the form of a loop having a certain circumference so that when the preform is heated, the flux material disperses uniformly from the circumference of the preform for evenly treating the surface of a component on which the preform is placed. The length of wire may include a silver alloy.

Abstract: A wire preform suitable for use in brazing components to one another. The preform is made from a length of wire having a core of flux material, and a longitudinal seam or gap that extends over the length of the wire. The seam is formed so that when heated, the flux material flows from the core and out of the seam. The length of wire is in the form of a loop having a certain circumference so that when the preform is heated, the flux material disperses uniformly from the circumference of the preform for evenly treating the surface of a component on which the preform is placed. The length of wire may include a silver alloy.