摘要:
The present invention provides an ion source comprising an ion-generating chamber and an anode formed of multi-capillary for sending high-density atoms or molecules to be ionized into the ion-generating chamber in a constant direction.
摘要:
The contacted edge portions of plate glasses to be joined are locally heated to a temperature higher than in the other portions of the plate glasses, after the whole of the plate glasses is heated. Electric current is then passed to the edge portions in order to further heat the edge portions so that the edges of the plate glasses are molten and welded together.
摘要:
A process for removing environmental contaminants from an exhaust gas by a semidry method through contact with an absorbent slurry containing alkaline compounds in a reactor, comprising the steps of adding a material containing calcium sulfate and/or calcium sulfite, a material containing aluminum oxide, and a material containing silicon dioxide to a material capable of supplying calcium oxide, mixing the mixture with water, curing the whole mixture in hot water, and then introducing and dispersing the resulting absorbent slurry in the reactor for contact with the environmental contaminants. In a modification the absorbent slurry is obtained by adding a material capable of supplying aluminum oxide, silicon dioxide, and calcium sulfate and/or calcium sulfite to a material capable of supplying calcium oxide, calcining the mixture at 750.degree.-950.degree. C., mixing the calcined product with water, and curing the mixture in hot water. To the absorbent slurry obtained in either way is added a soluble compound that elevates the boiling point of water.
摘要:
A process for producing a hydrated and cured product of a lime-gypsum-coal ash mixture capable of constituting a high-performance desulfurizing agent, with a high yield and in a simplified manner is provided, which process comprises adding water to a mixture of lime, used desulfurizing agent and coal ash, followed by kneading the resulting mixture, then extruding the resulting kneaded material through a hole of 2 to 10 mm in diameter to obtain bullet-like materials, hydrating and curing said bullet-like materials, followed by drying.
摘要:
A lining apparatus provided with a foldable spray pipe comprising an elevatable vertical support strut supported by a frame, a bifurcated support strut having the upper end thereof connected to the lower end of the elevatable vertical support strut, the bifurcated strut comprising a pair of parallely extending strut elements which define an arm storing space therebetween opening at both sides, a pipe supporting arm foldably connected to the lower end of the bifurcated strut and encasing a spray pipe therein and a protective path formed in each strut element of the bifurcated strut allowing a plurality of lines including a material supply line to pass therethrough.
摘要:
Width and thickness of a hot-rolled and descaled strip are controlled by performing, in a line in which the strip runs, a rough control step for reducing correction of the width and the thickness of the strip in only the longitudinal ends thereof and a fine control step for reducing correction of the width and the thickness of the strip over the entire length thereof, respectively at least one time, so that the desired width and thickness of the strip are obtained in the last reduction.
摘要:
A clean cold strip is produced by injecting at a high pressure a rolling mill lubricant emulsion of a low concentration to both the sides of a strip at the last stand of a rolling mill, thereby removing oil and metal dust therefrom, charging the cold strip as rolled into a box annealing furnace, mixing water steam with an atmospheric gas of the annealing furnace consisting mainly of nitrogen and hydrogen, and adjusting the dew point of the gas within the furnace to 0.degree.-10.degree. C.
摘要:
As a first step to bend a glass along a line traversing the plate, external heat is applied to the glass plate such that a narrow zone containing the entire length of the bending line is heated more intensely than the remaining area to reach a temperature at which the glass does not yet soften but exhibits an appreciable lowering of its electrical resistivity. Then an electric current is caused to flow through the glass in the intensely heated zone from one terminal of the bending line to the other terminal, until the glass is softened only in this zone, i.e. along the bending line by the Joule effect of the current. In this state, desired manner of bending is achieved by the use of a suitably shaped bending die.
摘要:
An object of the present invention is to provide a method of scribing and breaking a substrate made of a brittle material by which good-quality cutting surface of the substrate can be obtained without any defects such as chippings on the substrate.The method comprises (a) the first scribing step in the first direction by controlling the relative moving velocity and output power of the laser beam so that local volume shrinkage and local tensile stress can be generated in the vicinity of the formed first scribed line, (b) the second scribing step in the second direction of forming locally trigger cracks, which use tensile stress in the vicinity of the first scribed line and work as a starting point in the second direction, in the vicinity of the intersection of a scribed line in the first direction with a scribed line in the second direction, (c) the first breaking step of breaking the substrate along the first scribed line in the first direction, and (d) the second breaking step of breaking the substrate along the second scribed line in the second direction after the first breaking step and performing the breaking from the trigger that works as a starting point of breaking.
摘要:
A composition of at least one member selected from the group consisting of sodium fluoride and calcium fluoride and optionally containing kaolin is powerful adhesive for ceramic articles which is used by interposing the adhesive intimately between the opposed surfaces for union of the ceramic articles and heating the adhesive to a temperature equal to or higher than the decomposition temperature of the fluoride used.