Abstract: A method for coating finely divided material with titania is disclosed. The method involves the fluidization of the finely divided material in an inert carrier gas containing vaporized titanium isopropoxide. The isothermal fluidized bed is kept at a temperature equal to or below approximately 300.degree. C. The vaporized titanium isopropoxide reacts to form a coating of titania on the surfaces of the particles within the fluidized bed. The greatest coating efficiency occurs when the fluidized bed is kept at approximately 300.degree. C. for approximately the first 10 minutes of the reaction and thereafter at approximated 250.degree. C. The titania coating process is particularly useful for electroluminescent phosphors such as copper doped zinc sulfide phosphor. The titania coated electroluminescent phosphors are relatively insensitive to moisture. Lamps made from the coated electroluminescent phosphor are also relatively insensitive to moisture.

Abstract: A lightweight structural panel is formed by subjecting a surface of a metal cover sheet to an oxidizing treatment to remove any foreign substances thereon, applying an adhesive layer to a core member, and bonding the treated surface of the metal cover sheet to the adhesive layer on the core member. Preferably, the oxidizing treatment is by electron plasma surface treatment for a period of time sufficient to oxidize any oil, chemical film, or rust on the surface of the metal sheet. The core member is made of a plastic material which may also be subjected to electron plasma surface treatment. The metal cover sheet may instead be flame-treated, or treated with oxidizing chemicals such as hydrazine. Metal cover sheets may be bonded on both sides of the plastic core.

Abstract: The present invention is directed to a process for coating the interior surfaces of an orifice in a substrate that forms a slurry fuel injection nozzle. In a specific embodiment, the nozzle is part of a fuel injection system for metering a coal-water slurry into a large, medium-speed, multi-cylinder diesel engine. In order to retard erosion of the orifice, the substrate is placed in a chemical vapor deposition (CVD) reaction chamber. A reaction gas is passed into the chamber at a gas temperature below its reaction temperature and is directed through the orifice in the substrate. The gas reaction temperature is a temperature at and above which the reaction gas deposits as a coating, and the reaction gas is of a composition whereby improved resistance toerosion by flow of the particulates in the slurry fuel is imparted by the deposited coating.

Abstract: Process and apparatus for forming a plastic coating on a metal strip. A metal strip is cleaned, surface treated, coated with an electrostatically charged plastic powder in an enclosed chamber using a plurality of spray guns positioned on both sides of the strip, inductively heated to above the melting point of the powder, and maintained in an infrared heater until the fused powder is flowed into a coating having a smooth surface and a uniform thickness. Thermoplastic and thermosetting coatings, having thicknesses of at least 10 microns formed using total induction and infrared heating times of less than 60 seconds, can be fabricated without cracking.

Abstract: A method is provided to reduce the core loss measured at frequencies of 60 Hz or higher in light-gauge, grain-oriented, silicon steel sheet or strip of less than 7 mil thickness and conventional permeability of .mu.10<1850 at 60 Hz, the method includes coating such steel with tension-inducing stress coatings in order to exert tensile stresses on the silicon steel of at least approximately 600 psi and further provides a method with the step of preparing the surfaces of the light-gage, grain-oriented, silicon steel products to support the stresses of the applied tension-inducing stress coatings in order to prevent spalling of the coatings.

Abstract: A method for providing a metal substrate with an impact resistant surface is disclosed. The surface of the substrate is exposed to high intensity laser radiation to melt a spot of the surface. Particles of a material such as WC are injected into the melt.In order to enhance the percentage of particles in the surface, thus increasing the wear resistance, there is a forced reflection of stray particles back toward the melted spot.Further a fixture for holding the substrate, comprising the essential reflection surfaces for achieving the desired back reflection is described as well as a device for carrying out the method.

Abstract: Machine elements formed which overcome the problems associated with rolling bearings or rolling drive units, which, apart from load under rolling are simultaneously exposed to frictional load, which leads in particular zones to frictional wear. In order to keep this to a minimum the invention teaches to apply on the effected surfaces of such structural parts a coating of a friction bearing material, which, however, according to the findings of the invention must be applied with the PVD method and must have a thickness of the order of magnitude of the surface roughness of the base body; known thicker friction bearing coatings are not suitable. The invention is especially for forming gear wheels, rolling bearings, shafts, compressor screws, and rolling pistons.

Abstract: A superconductive substance is formed into fine wires readily without producing surface defects on the wires and correctly with a predetermined even diametric thickness. Highly refractory metallic core is heated to a predetermined temperature higher than the eutectic point of powders which constitute the superconductive substance, and passed through said powders whereby the powders which make contact with the core melt and adhere to the core with a predetermined uniform thickness, forming a fine wire made from the superconductive substance.

Abstract: A method of covering steel parts onto the outer surface of which there is applied a plastic coating which is surrounded by an embedding material. In order to obtain in a simple manner increased adherence between plastic coating and embedding material a granular powder or granulate is applied to the plastic coating which is still not completely hardened so that the individual powder granules are received only in part by the coating surface, so as to form profiling projections. In accordance with a variant, the profiling projections can also be formed by the side flanks of a helical rib which is extruded onto the heated plastic coating.

Abstract: A method of ceramic coating a substrate by thermodeposition from a sol made by hydrolyzing and peptizing organometallic compounds in water. The sol contains colloidal particles having a size between about 0.0005 micron and about 10 microns and the deposited coatings have good packing characteristics as well as smoothness. Composite coatings are also deposited which contain reinforcing materials such as SiC embedded in the coated matrix. These coatings afford the substrate onto which they are coated excellent wear, anti-corrosion and insulating characteristics.

Abstract: A method of fabricating an electrode which comprises an intimate mixture of finely divided electroactive material in a matrix composed of a conjugated backbone polymer which comprises the steps of: derivatizing the surface of finely divided alkali-metal alloying metal, alkali metal cation inserting material or anion inserting material with active polymer catalyst; dispersing the derivatized metal or material having a desired small particle size in a gas, suspension or solution of a monomer or other precursor of the desired conjugated backbone polymer and polymerizing the monomer and/or precursor in the presence of the dispersed metal or material; and fabricating a cohesive solid by recovering the polymerization product from said gas, suspension or solution comprising derivatized metal or material coated with conjugated backbone polymer and forming same into a cohesive solid.

Abstract: Improved coatings derived from arylene sulfide polymers are provided by use of powered or liquid slurry coating formulations comprising a metal oxide and an arylene sulfide polymer which has an extrusion rate of about 80 to about 400 grams/10 minutes.

Abstract: A method and apparatus for synthesizing diamond film or coating by applying low-pressurized vapor phase capable of precipitating diamond on the surface of a substrate by activating gas composed of carbon including solid carbon, hydrocarbon, and carbon tetrachloride respectively being mixed with hydrogen. More particularly, the invention relates to an apparatus and method of synthesizing diamond by disposing a grid between a thermoelectron-radiating material heated with activated material gas to a minimum of 1,600.degree. C., and the substrate to be coated, where the thermoelectron radiating material and grid are respectively used for the negative and positive electrodes, followed by provision of potentials by causing the positive and negative electrodes to respectively be connected to the grid and the substrate by arranging another power supply source. The method of synthesizing diamond according to the invention securely generates extremely fine crystalline diamond particles each having a maximum of 2 .mu.

Abstract: A method and apparatus for coating a fastener, particularly a fastener with a head portion and shank portion, with a coating material is provided. The invention includes the steps of and apparatus for supporting the fasteners such that the fasteners are positioned for coating. The fasteners are conveyed such that the fasteners are moved through a plurality of operation stations and pass through a heating station where the shank portions of the fasteners are heated. Subsequently, at a material applying station, a coating material is applied to the heated shank portions. A preferred embodiment of the method and apparatus of the present invention includes supporting the fasteners on their head portions with the shank portions projecting upward, conveying the fasteners with their shank portions projecting upward for processing, heating the shank portion to a temperature above the melting point of the applied material and applying the material to the heated shank portion to form a coating thereon.

Abstract: A solvent tank is provided for enclosing an organic liquid solvent and an organic solvent vapor layer therein, an adhesive tank for enclosing an adhesive, a means for shifting a steering wheel metal core from the solvent tank to the adhesive tank. The steering wheel metal core is washed in the vapor of an organic solvent. Adhesive is applied to the ring part core bar of the steering wheel metal core thus washed.

Abstract: A fastener, and a process and apparatus for coating fasteners, in which a resin type material is applied to the fastener is disclosed. A stream of resin type material is directed to each fastener and the threads of each of the fasteners, the threads may be covered over an arcuate variable length including complete 360.degree. coverage. The resin type material applied may be a masking material, a lubricating material and/or an insulating material enabling an accurate and consistent torque-tension characteristic to be maintained during coupling of the fastener in a variety of post-processing environments. Furthermore, the resin type material applied to the fastener is substantially resistant to the deposition of corrosion resistant or preventative materials.

Abstract: A silicon diffusion coating is formed in the surface of a metal article by exposing the metal article to a reducing atmosphere followed by treatment in an atmosphere of 1 ppm to 100% by volume silane, balance hydrogen or hydrogen inert gas mixture. Hydrogen with a controlled dew point is utilized as a surface preparation agent and diluent for the silane.

Abstract: A method is provided of treating an air-contacted surface of an air conditioning system comprising the steps of:(A) introducing to the air passage and air-borne biocide in a biocidally effective amount; and(B) subsequently introducing into the air passage an air-borne biostat adapted to coat the surface with an air-driable, substantially water insoluble biostat coating, the biostat being introduced in an amount sufficient to coat the surface with a biostatically effective coating. According to another aspect of the invention, a kit is provided of interrelated parts for carrying out such treatment method.

Abstract: A method and an apparatus for interior coating of hollow bodies comprising a mandrel introducible into at least one tubular body, a coating arrangement on the mandrel for applying a coating medium to an interior of the tubular body and a heating mechanism on the mandrel and arranged so as to predominantly deliver heat directly from the mandrel into a surrounding area toward the tublular body. The heat-applying efficiency of burning in a coating medium can be improved by applying the heat from the interior at least predominantly directly to one of an interior area of the tubular body just before being coated and an interior area of the body already coated to burn in the coating according to the disclosed method.

Abstract: This invention relates to fuel granules of lithium having multiple coatings thereon and to the method of making the coated granules.

Abstract: An electrophotographic fuser roll includes a hard external surface having low surface energy and high abrasion resistance. This surface is formed by sequentially coating a metal roll with two layers of a polymeric material. The polymeric material is not cured until after the second layer is applied. Once the material is cured, it is subjected to a polishing step that also generates heats. In this way, the roll's surface is both polished and heat treated.

Abstract: A pre-metal deposition cleaning process for bipolar semiconductors includes a two step boron glass etching procedure: a chemical etchant consisting of DI, H.sub.2 SO.sub.4, HNO.sub.3 and HCl (500:65:325:163) heated to 80 deg. C. followed by a 10:1 (DI:HF) dip. The semiconductor wafer is then annealed in forming gas. Then the boron glass etching procedure is repeated. The initial etch removes any B-Si-O glass present at base contacts. The anneal removes any fluorine clustered under the boron skin, and the final etch removes any retained B-Si-O-F phase from the anneal step. The cleaning procedure produces bipolar semiconductors with low V.sub.be. The procedure can also be used for rework of high V.sub.be wafers without the anneal and the second boron glass etch steps.

Abstract: A silicon diffusion coating is formed in the surface of a metal article by exposing the metal article to a reducing atmosphere followed by treatment in an atmosphere of 1 ppm to 100% by volume silane, balance hydrogen or hydrogen inert gas mixture. Hydrogen with a controlled dew point is utilized as a surface preparation agent and diluent for the silane.

Abstract: The invention concerns a method for firing enamel on steel parts, especially on steel sheet of aluminum stabilized continuous cast steel material, as well as an enameling oven with a firing zone and an entry zone serving as a prewarming zone for the carrying out of this process. The invention is characterized in that the heating of the steel part or steel sheet to the firing temperature is interrupted before reaching the firing temperature, in that hydrogen dissolved in the steel is released during the interruption time, that the steel part subsequently is heated further to the firing temperature, is held at this temperature and is then cooled in a known way. The enameling oven for carrying out the method consists according to the invention of a degasing zone inserted between the firing zone and the prewarming zone, in which degasing zone the workpiece coated with enamel is held for a given minimum time at a definite temperature.

Abstract: This invention relates to a self-locking agent consisting essentially of a mixture of a polyamide or a copolyamide and an epoxy resin and a phenol resin, isocyanate compound, titanate, silane coupling agent or an organo-silicon compound and methods of making and using said agent.

Abstract: A very thin coating layer having a thickness of the order of angstroms of a hydroxymethyl substituted phenol is applied to the surface of a metal material. The hydroxylmethyl substituted phenol, such as saligenin, is applied in the gaseous phase to the surface of the metal material maintained at a high temperature.By forming this ultra-thin coating layer, the heat bondability of a thermoplastic resin layer to the metal material can be effectively improved. This technique is advantageously used in various fields, for example, for production of bonded cans.

Abstract: A method of inhibiting degeneration of direct reduced iron by immersing the iron ore, after it has been reduced, in molten wax for a period of time sufficient for the wax to cover completely the surface of the iron and to enter the pores in the surface of the iron.The iron is preferably in the form of pellets which are conveyed in mesh baskets which are themselves immersed in the wax.The wax is preferably paraffin wax at a temperature of between 110.degree. and 120.degree. C.

Abstract: A process of coating a surface of an article which is capable of being heated, by contacting the heated surface of the article with a coating composition comprising an aqueous dispersion of an organic film-forming material which is sterically stabilized and which has a critical coalescence temperature which is lower than the temperature to which the surface of the article is heated. Suitable coating compositions are described.

Abstract: A method and apparatus for coating the helical weld seam extending around a spirally welded pipe is disclosed. Following the application of the usual coating as by a sintered polyethylene coating process, the heated pipe is subjected to a further flow of the coating material from a hopper on a movable coating apparatus. The outlet chute of the hopper is aligned with the pipe and an operator drives a movable carriage carrying the hopper on a rail system extending parallel to the longitudinal axis of the pipe. The speed of movement of the carriage on the track is coordinated with the speed of rotation of the pipe on its longitudinal axis and with the pitch of the weld seam so that the outlet chute of the coating apparatus remains aligned with the weld seam of the pipe. The operator is provided with a lever which controls the material outlet so that a proper flow of coating material can be maintained.

Abstract: Surface treatment of metal blanks is achieved by applying an oxirane ring-containing compound in the gas phase to the surface of a metal blank maintained at a high temperature. According to this method, a covering layer which is much thinner than a conventional so-called adhesive primer coating layer and has a thickness of the angstrom order is formed on the surface of a metal blank. If a thermoplastic resin layer is coated on the metal surface treated with this oxirane ring-containing compound, the initial adhesion and the adhesion after lapse of time are highly improved over these adhesions attainable by the conventional methods. Even if a lacquer containing a thermosetting resin instead of the thermoplastic resin is coated and dried on the metal surface treated with this bonding compound, a similar effect can be attained.

Abstract: Substrates are coated by heating the substrates to temperatures of 120.degree.-260.degree. C. and dipping them into a bath of polyvinyl fluoride dispersed in latent solvent at temperatures below 100.degree. C.

Abstract: Encapsulated lithium including a shot shaped and sized body (10) of lithium metal encapsulated in a thin layer (12) of a predominantly fluorine substituted polyolefin based polymeric material, a method of making the same and a power plant utilizing the encapsulated lithium as fuel (FIG. 3).

Abstract: Method for applying a corrosion-protection layer to the base body (1) of a gas turbine blade by embedding particles (3) of SiC in a metallic matrix by means of powder, paste or electrolytic/electrophoretic methods and compacting, welding or fusing and bonding the matrix-forming material to the base body (1) by means of hot-pressing, hot isostatic pressing or laser beam, electron beam or electric arc. Protective layers are formed which do not flake off and with high silicon content which is at least partially contained in the embedded, partly modified SiC particles (6) as a reservoir for the operation.

Abstract: A surface treatment method for magnetic particles is disclosed, which comprises the steps of activating magnetic particles by application of heat thereto, treating the surface of the magnetic particles with a reactive silane coupling agent, bringing the treated magnetic particles into contact with at least one polymerizable vinyl-type monomer, polymerizing the monomer to form a polymer, and coating the surface of the magnetic particles with the polymer.

Abstract: In a rust preventing wax treatment method which is applicable to automobile bodies already provided with a finish coat of paint, use is made of a wax which possesses not only thixotropy but also such a temperature-sensitive property that the viscosity of the wax decreases when heated and increases again when cooled near to room temperature. In the wax treatment method the wax and/or the article to be treated with the wax is heated and the wax, which is kept under action of a mechanical force to utilize its thixotropy, is applied to desired surfaces of the article. After that the waxed article is cooled near to room temperature. By this method the wax exhibits a very low viscosity when applied to the article and therefore can penetrate even into narrow spaces, and the applied wax soon solidifies as the waxed article is cooled. Therefore, a wax coating film of a sufficient thickness can be formed without suffering from dripping of the applied wax.

Abstract: A substantially torus-shaped chamber is refurbished by installing partitions about the chamber to create isolated compartments within the chamber, and by sandblasting, painting, and curing the paint in the compartments and exhausting air from the compartments so that the dust and fumes from the compartments are not spread to adjacent ones of the compartments. In the curing process a plurality of insulated panels are installed in juxtaposed relationship with respect to the painted surfaces, and high velocity air is moved between the panels and the painted surfaces in closed paths. The recirculating air is heated to approximately 200.degree. F. and the hot air is confined substantially to the space immediately adjacent the painted surface.

Abstract: Staining of the finish coat on irregular workpieces caused by bleed-out of cleansing chemicals used in autodeposition coating processes is substantially eliminated by maintaining temperatures sufficiently constant to reduce or eliminate significant contraction or expansion of the metal fabric of the workpiece throughout the cleaning stage of the process.

Abstract: A solid lubricant such as MoS.sub.2 is applied to certain carbon and stainless steels after surface voids have been produced in the material by one or two annealings before final cold working the material to finished size. The latter operation imbeds or includes the lubricant into the material and thereby provides a superior lubricated steel for piston rings, shaft, valve stem, spring, stranded wire, and the like applications. The technique involved may also employ corrosion inhibiting agents to increase resistance to corrosion of the steel as well as to impove its lubricity.

Abstract: A method and apparatus for cooling and coating the inside seam of a hot welded can body. In the preferred embodiment, the apparatus includes a spray gun having a two-orifice nozzle assembly. Operation of the gun causes coating material to be sprayed concurrently from both orifices onto a seam of a can body passing by the nozzle. The first orifice emits a partially atomized spray of coating material on the seam to cool the seam and the second orifice emits an unatomized flow coat of material over the seam. The first spray acts to cool the seam making it more receptive for the coating material applied from the second orifice.

Abstract: A method for using alkanolamine-carboxylic acid salts as a coating for friction materials which during use contact, at least part of the time, rustable metals. The method comprises contacting the friction material with an aqueous solution comprising at least about 0.05 weight alkanolamine-carboxylic acid salts being the reaction product of:(i) alkanolamine; and(ii) C.sub.4 -C.sub.20 carboxylic acid;and thereafter evaporating water from the aqueous coating on the friction material so as to leave the friction material with a coating comprising alkanolamine-carboxylic acid salts. Friction materials coated by above method are also claimed.

Abstract: The microscopic pores, cavities and crevices of the strings and the interstices of a wound string are filled with dry lubricant particles using a moisture displacing agent and rust inhibitor as a carrier for the dry lubricant. This provides lubrication and inhibits corrosion, thus shortening initial break in periods and extending string life.

Abstract: An input phosphor screen includes a substrate having a substantially smooth surface, and first and second phosphor layers both vapor-deposited sequentially on the substrate. The first layer is made of phosphor crystal particles having a mean diameter of 15 .mu.m or less. The second layer has a thickness ten or more times that of the first layer and is made of individual columnar crystals of alkali halide grown vertically on the crystal particles, standing close together with fine spaces therebetween. A third layer is preferably deposited on the second layer as a continuous film. These three layers can be deposited by evaporating a phosphor material or materials at a prescribed temperature and at a predetermined degree of vacuum.

Abstract: This invention relates to a process for coating a substratum sheet material, such as woven fabrics, by first removing from the substratum material any moisture that does normally exist therein, and then coating the substratum material with a coating composition with no moisture, air or other impurities being trapped between the substratum and the coating. Novel products produced by this process comprise new compositions of sheet materials having improved weathering characteristics including stability against ultraviolet degradation for improved service in highly transparent or translucent coverings for roofs and solar devices.

Abstract: This invention is directed to a process for preparing semiconducting and photoelectronic devices comprised of a first electrode means, a second counter electrode means, a receptacle means for the first electrode means and the second counter electrode means, a substrate means to be coated contained on the first electrode means, which substrate is in the form of a cylindrical member, and a gas inlet means, a gas exhaust means, wherein a silane gas is introduced into the receptacle in a crossflow direction, perpendicular to the axis of the cylindrical member.

Abstract: A method for the insulation of a hot metallic material which is heated for hot working is described, which comprises applying a mixture of acidic aluminum phosphate, e.g., aluminum hydrogenorthophosphate, a multivalent metal oxide, hydroxide, silicate or carbonate powder, and water onto the surface of the hot metallic material and allowing the mixture to be heated by the heat of the hot metallic material to convert it to a porous hardened material. The porous hardened material acts as an insulating coating layer for the hot metallic material, permitting hot working in an insulated state for a long period of time.

Abstract: A method for insulating slots of a rotor in an electrical rotating machine comprises steps of removing punching oil from a rotor core assembly by heating only the interior of the slots to a high temperature while axially compressing the rotor core assembly, applying a liquid electric insulating paint to the inner wall surfaces of the slots by introducing the paint only into the slots and then discharging the paint from the slots while pressurizing the rotor core assembly, applying a negative pressure to the lower ends of the slots to remove the paint collected at the lower ends of the slots, and heating at least the interior of the slots to bake the paint on the inner wall surfaces of the slots.

Abstract: Temperature monitoring of electrically conductive wire during heating in which the current in the wire in the heating zone is measured and the voltage at the downstream end portion of the zone is measured, signals corresponding to the measured values then being combined to produce a resultant signal corresponding to the resistance of the wire at the downstream end portion of the heating zone. The resistance value corresponds to the temperature of the heated wire. Apparatus includes current and voltage measuring means located in the appropriate positions to enable temperature monitoring, and means to combine voltage signals which correspond to the measured values and to produce a combined signal representative of wire resistance after heating.

Abstract: A cutting tool hardening method, according to which a tool to be hardened is heated in air to a temperature of 130.degree. to 560.degree. C. in order to produce an oxide film 200 to 10,000 .ANG. thick on its surface which is then coated with a wear-resistant material by vacuum deposition.

Abstract: An aluminum evaporator including a refrigerant tube and fins with a hydrophilic surface is prepared by forming a chemical coating over the surface of its components as assembled into a product or before fabrication, and thereafter forming a hydrophilic layer over the coating by treating the resulting components with a solution of silicic acid, silicate or colloidal silica.

Abstract: A fastener, and a process and apparatus for coating fasteners, in which a resin type material is applied to the fastener is disclosed. A stream of resin type material is directed to each fastener and the threads of each of the fasteners, the threads may be covered over an arcuate variable length including complete 360.degree. coverage. The resin type material applied may be a masking material, a lubricating material and/or an insulating material enabling an accurate and consistent torque-tension characteristic to be maintained during coupling of the fastener in a variety of post-processing environments. Furthermore, the resin type material applied to the fastener is substantially resistant to the deposition of corrosion resistant or preventative materials.