Abstract: Described is a method and an apparatus for producing cured coating films on a substrate surface. Specifically, a portable spraygun may be used to initiate radiation cure without the operative having to be protected from radiation. The spraygun comprises a supply channel for a radiation-curable coating composition, a needle, a reserve for the radiation-curable coating composition, and, optionally, a supply channel for a gas.

Abstract: Provided is an apparatus for manufacturing a powder alloy used as an anode active material of a secondary battery. The apparatus includes a nozzle unit for melting and spraying an alloy, a cooling unit for cooling down the alloy sprayed from the nozzle unit, a grinding unit for grinding the alloy cooled by the cooling unit, and a first chamber accommodating the nozzle unit, the cooling unit, and the grinding unit, and maintained to be a vacuum state.

Abstract: This invention relates to a device for ejection of liquid drops comprising: a non-deformable body (28) provided with a cavity, filled with the said liquid (20) and at least one output orifice (19) for this liquid; means of transmitting a sufficiently large pulse to the liquid to cause ejection of at least one drop (26); these means include means (23) of striking a wall (30) of the said body (28).

Abstract: A nozzle (2) ejects molten metal (20) in an ejecting direction Z. The nozzle (2) has a solder-philic surface in a region P1 and a solder-repellent surface in a region P2. The region P2 is located forward of the region P1 in the ejecting direction Z. Before ejected, the peripheral edge of the liquid surface of the molten metal is held at a position A located further forward by a distance &dgr; (>0) in the ejecting direction Z than the boundary between the solder-philic surface and the solder-repellent surface. The peripheral edge of the liquid surface is thus held before ejected so that the solder drops can be ejected steadily with a steady diameter, steady direction, and steady speed.

Abstract: A thermal spray or welding apparatus including a cored wire electrode with a sheath and a multiplex powder composite. The composite comprises micron-sized particles and sub-micron sized particles, including nano-scale particles, the particles mechanically cooperating to promote smooth powder flow, which facilitates compaction of the cored wire electrode. The invention also includes a method of manufacture of the apparatus including the cored wire electrode and its method of use to deposit a low porosity coating with high levels of alloyed refractory elements that is adherent and low in oxide content.

Abstract: There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous stream being provided with a velocity profile across the nozzle width that compensates for the gaseous medium's tendency to assume an axisymmetric configuration after leaving the nozzle and before reaching the surface. There is also claimed a nozzle divided into respective side-by-side zones, or preferably chambers, through which a gaseous stream can be delivered in various velocity profiles across the width of said nozzle to compensate for the tendency of this gaseous medium to assume an axisymmetric configuration.

Abstract: There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous stream being provided with a velocity profile across the nozzle width that compensates for the gaseous medium's tendency to assume an axisymmetric configuration after leaving the nozzle and before reaching the surface. There is also claimed a nozzle divided into respective side-by-side zones, or preferably chambers, through which a gaseous stream can be delivered in various velocity profiles across the width of said nozzle to compensate for the tendency of this gaseous medium to assume an axisymmetric configuration.

Abstract: A metallizing device for vacuum metallizing arrangements is disclosed having a vaporizer (3) heated by an electrical heating rod (8). This vaporizer (3) is connected to a nozzle element (1) in the form of a hollow body. For the purpose of vaporizing a substrate, vapor flows out of the vaporizer (3) into the nozzle element (1) and from there out of a nozzle gap (2) toward the substrate.

Abstract: An apparatus and process for jetting molten solder in the form of balls directly onto all the metallized interconnects lands for a ball grid array package in one step with no solder paste required. Molten solder is jetted out of a grid of holes using a piston attached to a piezoelectric crystal. When voltage is applied to the crystal it expands forcing the piston to extrude a desired volume of solder through holes in the aperture plate. When the voltage is decreased the piston reverses motion creating an instability in the molten solder at the aperture plate surface and thereby forming spherical solder balls that fall onto a metallized substrate. The molten solder balls land on the substrate and form a metallurgical bond with the metallized lands. The size of the solder balls is determined by a combination of the size of the holes in the aperture plate, the duration of the piston pulse, and the displacement of the piston. The layout of the balls is dictated by the location of the hooks in the grid.

Abstract: The invention is a method and apparatus for atomizing metal melts by disintegration of a vertical tapping stream of the melt with the aid of horizontal media jets of pressurized gas. The media jets are formed by two slot-shaped nozzles or row of nozzles separate from each other. The jets are oriented to flow at an angle beta between the media jets. A zone is established between the media jets just prior to the intersection of the tapping stream with the media jets. The tapping liquid is drawn back into the zone by the media jets action.

Abstract: A method for regulating the flow of liquid metal to an atomization zone is provided. The regulation is effected by imparting a high density flux to a stream of liquid metal as it descends toward the atomization zone. The high density flux is applied by a flux concentrator. The flux concentrator is a small sleeve-like element attached by parallel conductors to a larger sleeve-like element which acts as a secondary to primary coil extended through the larger sleeve element. By imparting high density flux to initiate a stream passing through the flux concentrator the cross sectional dimensions of the melt stream and the rate of flow of melt through the concentrator is regulated to values which are appropriate for a spray-form type of action.

Abstract: A prilling apparatus with which a molten material hardenable upon cooling is prilled to a narrow size distribution without fouling of atomizing fluid ports. The apparatus includes: (a) a nozzle body; (b) a central bore for conducting the feed material through the nozzle body; (c) a plurality of exit passages formed in the nozzle body in fluid communication between the central bore and exterior the nozzle body; and (d) a plurality of atomizing fluid passages adapted for impinging an atomizing fluid upon feed material essentially exteriorly the nozzle body at an angle of from about 120.degree. to about 160.degree., preferably about 135.degree.-145.degree., when the atomizing fluid and the feed material are expelled under pressure from the fluid passages and the exit passages, respectively, thereby atomizing the feed material.

Abstract: Metals with a relatively low melting point can be sprayed in the form of droplets which coalesce to form a coating. A metallizing gun is used for this purpose which comprises a thinwalled container of steel for the liquid metal which is surrounded by a massive block consisting of an alloy of a thermally conductive metal, which contains an electric heating element and a temperature sensor and whose external side serves to mount air ducts which transmit heat to the block and connect to the spray nozzle.