Abstract: A technique for securing a tube to a flange includes the steps of inserting the end of the tube into an aperture provided on the flange from the first side of the flange such that a portion of the tube extends at least to, and preferably beyond the second side of the flange opposite the first side. A ceramic plug is optionally inserted into the end of the tube to prevent weld spatter and tube burn-through. The tube is then welded to the flange about the circumference of the tube from the second side of the flange, and that portion of the tube which extends beyond the second side of the flange is removed by grinding to produce the finished product.

Abstract: Method and apparatus for forming an electrical contact between mounting pins extending from an electrical component and insulated wires from the component that are wrapped around the pins in which the tips of the pins are held in a flowing pool of molten solder until the heat travelling up the pins loosens the insulation up to a desired level, and the pins are then quickly immersed up to that level and then quickly removed so as to cause the solder to melt and carry away the loosened insulation but to leave substantially intact the insulation that is not loosened.

Abstract: A plasma arc spray overlay of cladding metals is used over joints between clad metal pieces to provide a continuous cladding metal surface. The technique permits applying an overlay of a high melting point cladding metal to a cladding metal surface without excessive heating of the backing metal.

Abstract: A flanged trough is provided having flanges along each side of the trough with a smooth continuous curve between the flanges and the body of the trough and a bar of metal welded along the underside of each longitudinal edge of the metal sheet before the flanges are formed. The junction between the metal bars and the flanges and the welds can be covered with a sealant to form a sanitary seal. A lid and gasket can be placed over the trough to seal the contact area of material in the trough from the junction between the metal bars and the flanges of the trough to form a weather-tight, dust-tight and gas-tight conduit.

Abstract: A process for balancing a crankshaft comprising applying balancing masses onto the outer peripheral surfaces of balancing weight parts of a crankshaft, by welding, in accordance with the degree of unbalance of the shaft and preliminarily forming recesses or projecting portions at positions radially inward of the balancing masses applied by welding to prevent transmission of thermal stress to central journal parts of the crankshaft and thereby preclude bending of the shaft.

Abstract: A joint structure of a watch body and a bezel comprising a watch body with a joint surface, a bezel with a joint surface, at least one projection extending from one of the joint surfaces welded onto the other surface, a space between said surfaces and connecting material filling said space. By thus constructing, the watch body and bezel have a durable water and air tight joint.

Abstract: The treatment of copper with 5-methyl benzimidazole yields excellent protection from oxidation and/or corrosion of the treated copper body. Additionally, this treatment does not interfere with subsequent soldering of the copper.

Abstract: Disclosed is a welded side-seamed can formed by welding a can blank comprising a steel plate substrate having, formed thereon, a coating layer consisting of a metallic chromium layer and a chromium oxide layer formed on the metallic chromium layer, wherein the so-formed side seam has an exposed steel plate layer consisting of a compact and dense steel oxide formed mainly of magnetite, which has a thickness of 50 to 800 A, especially 50 to 400 A, and a coating of a resin or resinous composition consisting of carbonyl, hydroxyl, ether and epoxy groups at a concentration of 10 to 2000 millimoles per 100 g of the resin is formed on at least one surface portion of said side seam through said steel oxide layer.

Abstract: A method for fabricating a watch case comprising the steps of placing contact points of a bezel and a watch body to face to each other, applying pressure to said contact points through electrodes, and applying pulse current to said electrodes until said contact points get molten. The pulse current will allow the bezel and the body except the contact points to cool down during its intervals. Therefore, this method does not require a water-cooling system as required by conventional methods.

Abstract: Corrosion resistance of tubular metal products is enhanced, and particularly to welds formed between metal tubes or pipes and threaded ends.

Abstract: The ends of two sections of lined pipe (e.g. polyurethane lined steel pipe), in which the lining terminates a definite distance from each pipe end, and butted together, with an internal concentric sleeve spanning the unlined pipe ends and defining an annular hollow casting space at the area to be joined. The butted ends are then welded together at the joint. Thereafter a curable liquid polymer (e.g., liquid polyurethane composition) is introduced into the casting space through an opening in the unlined section of pipe, and cured to a solid state in situ. The opening is then plugged.

Abstract: An endless casting belt for machines for continuous casting of metals, said casting belt being provided with a layer of an anti-adhesion agent and having at least in the "welding zone" a coating resistant to stress corrosion cracking when in contact with the liquid metal to be cast and with the said anti-adhesion agent.

Abstract: A photopolymerisable composition particularly useful as a solder resist composition able to withstand molten solder without loss of adhesion, pitmarks or shrinkage and for forming durable coatings on substrates generally is obtained by a combination of a photoinitiator, a polythiol acting as a chain modifier, and a polymer having hydroxy terminated chains capped by acrylate groups connected to the chains via the residue of a polyisocyanate.

Abstract: Pressure-sensitive electric conductive sheet material is provided, which comprises at least one layer of a rubbery elastic material wherein are substantially uniformly distributed fine particles of electric conductive metal.

Abstract: A hollow valve body having two hubs for connection to a piping system and containing a spherical plug or ball is constituted by two shells cut from pipe sections. Each shell is shaped so as to form a flared-out portion in a spherical zone, the edge of which is provided with a semicircular notch. A sleeve having a recess at the inner end so as to form a valve seat is welded in position within one of the hub connections. The ball is enclosed between the two shells which are joined together by welding. A second sleeve also provided at the inner end with a valve seat is welded in position within the other hub connection. A stuffing-box is engaged on the ball-operating rod and welded to the orifice formed by the two oppositely-facing semicircular notches.

Abstract: A fluid-tight protection system is provided for an electromechanical component in a casing. An insulating absorbent covering layer which has a high capillary absorption capacity is disposed over joints or apertures in the casing requiring sealing. The covering layer is impregnated with a sealing compound which preferably has a thin liquid form during the impregnation. An impermeable film may also be provided to cover the absorbent covering layer.

Abstract: A process for soldering aluminum fins to cooling pipes made of aluminum, copper, brass or steel to produce a cooling assembly. The fins are etched in the solution of sodium hydroxide, zinc chloride, technical urea and water and the cooling pipes are coated with a fusible alloy which is covered with a protective coating for attenuating electro-corrosion between the alloy and the aluminum fins. The aluminum fins are then mounted on the cooling pipes and soldered thereto in a thermal bath.

Abstract: A method of joining coated large-diameter steel pipes laid underground which comprises placing the steel pipes end to end, applying a layer of heat insulating material to the outer surface of the welding part, covering the ends of the pipe coating the non-coated part of the pipe ends and the layer of the heat insulating material with a layer of a heat fusible, heat adhesive, corrosion resisting material of a shape corresponding to the external shape of the pipes, placing a thin clamp plate around the outer surface of this layer to make it fast, and then internally welding the groove to join the pipes together, whereby the welding heat is utilized effectively and both the corrosion resisting material and the pipe coating are fused by the heat, thus causing the thermally fused corrosion resisting material to adher and solidify on the uncoated portions of the pipes and unite with the ends of the pipe coating and thereby forming a corrosion resisting covering layer.

Abstract: A method of joining first and second sheet metal parts along a common seam formed from a first surface on the first part and a second surface generally matching the first surface and on the second part. These surfaces define therebetween random spaces of variable thickness when the surfaces are assembled in a generally abutting coextensive relationship.

Abstract: A weldable coated steel sheet comprising a steel sheet substrate and a paint coating layer thereon, said paint comprising at least one of the group consisting essentially of titanium carbide, zirconium carbide, hafnium carbide, vanadium carbide, niobium carbide, tantalum carbide, and chromium carbide in the powder form.

Abstract: An improved method is disclosed for the soldering together of the cooling assembly of automobile radiators wherein aluminum fins, a first part of the cooling assembly, are etched in a solution consisting essentially of 10 to 14% sodium hydroxide, 4 to 7% zinc cyanide, 20 to 30% technical urea with the balance water for a period of 15 to 30 seconds at a temperature of 32 .degree. to 60.degree. C prior to undergoing treatment with a protective coating and eventual soldering to cooling pipes made of copper, brass, steel or aluminum, the remainder of the cooling assembly.

Abstract: A diffusion and brazing method of bonding honeycomb core material to its facing sheets wherein the core and facing sheets have a predetermined configuration and either the facing sheets or the core edges have had deposited thereon a laminate formed of diffusion bridge or braze alloy material. First, the faying surfaces of the facing sheets and the core are positioned together with the core located between the facing sheets to form the assembly. Secondly, a male plug is inserted into the interior of the assembly wherein the dimensions of the male plug are slightly smaller than the interior dimensions of the asembly and wherein the male plug is formed from a metal having a thermal coefficient of expansion greater than that of the material of the facing sheets and core.

Abstract: A process for soldering a metal substrate coated with an electrodeposited non-peelable coating comprising 35-65 wt parts of methacryl ester, 10-40 wt parts of acrylonitrile, 2-15 wt parts of methacrylic acid, 3-10 wt parts of acrylamide and/or vinyl acetate, in 100 parts of resin.

Abstract: A method of diffusion bonding and fluxless brazing of aluminum containing components, including a method of preparing aluminum containing surfaces for such welding techniques wherein the aluminum surfaces are freed of any aluminum oxide coating and are coated with a polymeric sealer which can be thermally removed leaving essentially no residue, the polymeric sealer being removed in a substantially oxygen-free environment and the aluminum components then being brazed or diffusion bonded without the use of a flux to remove oxide coating.