Abstract: An oil-based release agent of the present invention contains a petroleum-based hydrocarbon solvent (a) and a high temperature adhesive (b), is applied to a metal die used for die casting or casting, has high adhesion and high lubricity even with respect to a metal die at a high temperature particularly of 300° C. or higher, and can prevent seizure. In addition, the present invention provides a method for applying the oil-based release agent of the present invention by controlling an adhesion amount thereof by micronization and speed-control thereof with respect to a metal die at a high temperature, and an electrostatic application method.

Abstract: The present invention relates to a push button switch 5 comprising a curved deformable contact element 4. The push button switch 5 comprises at least one first terminal point 1, at least one second terminal point 2, and at least one third terminal point 3. The deformable contact element 4 is switched between a first and a second state. In the first state the deformable contact element 4 connects the at least one first terminal point 1 with the at least one second terminal point 2 whereas there is neither contact between the at least one third terminal point 3 and the at least one first terminal point 1 nor between the at least one third terminal point 3 and the at least one second terminal point 2.

Abstract: Disclosed is a microetching solution for copper, a replenishment solution therefor and a method for production of a wiring board. The microetching solution of the present invention consists of an aqueous solution containing a cupric ion, an organic acid, a halide ion, an amino group-containing compound having a molecular weight of 17 to 400 and a polymer. The polymer is a water-soluble polymer including a polyamine chain and/or a cationic group and having a weight average molecular weight of 1000 or more. When a concentration of the amino group-containing compound is A % by weight and a concentration of the polymer is B % by weight, a value of A/B of the microetching solution of the present invention is 50 to 6000. According to the present invention, an adhesion between copper and a resin or the like may be maintained even with a low etching amount.

Abstract: Provided are a surface roughening agent for aluminum and a surface roughening method using said surface roughening agent wherein it is possible to easily reduce costs for the surface roughening step and to improve the adhesiveness between aluminum and a resin. Specifically, provided is a surface roughening agent for aluminum comprising an aqueous solution containing: an alkali source, an amphoteric metal ion, a nitrate ion, and a thio compound. Moreover, provided is a surface roughening method for aluminum which involves a surface roughening step in which the surface of aluminum is treated with the aforementioned surface roughening agent.

Abstract: A gas inlet system for a wet gas scrubber includes a weir configured to deliver liquid to a scrubbing passage to wet the interior surface of the scrubbing vessel during operation of the gas inlet system. The weir include a weir duct and a weir trough extending at least partially around the weir duct to receive and at least partially fill with liquid during operation of the gas inlet system. The weir trough has an upper trough outlet in liquid communication with the upper weir duct inlet to deliver liquid from the weir trough into the upper weir duct inlet during operation of the gas inlet system. The weir trough also has a lower trough outlet below the upper trough outlet. The lower trough outlet is in liquid communication with the scrubbing passage to deliver liquid from the weir trough toward the scrubbing passage during operation of the gas inlet system.

Abstract: A contaminant gas is removed from a feed gas in two absorption and stripping circuits operated in tandem. The gas is first passed through a rich gas absorber producing a rich absorption liquor from which contaminant gas is stripped in a rich liquor stripper. A lean gas exiting the rich gas absorber is passed through a lean gas absorber, producing a lean absorption liquor from which contaminant gas is stripper in a lean liquor stripper. Regenerated absorption media exiting the respective strippers are recirculated to the respective absorbers.

Abstract: Disclosed is a microetching solution for copper, a replenishment solution therefor and a method for production of a wiring board. The microetching solution of the present invention consists of an aqueous solution containing a cupric ion, an organic acid, a halide ion, an amino group-containing compound having a molecular weight of 17 to 400 and a polymer. The polymer is a water-soluble polymer including a polyamine chain and/or a cationic group and having a weight average molecular weight of 1000 or more. When a concentration of the amino group-containing compound is A % by weight and a concentration of the polymer is B % by weight, a value of A/B of the microetching solution of the present invention is 50 to 6000. According to the present invention, an adhesion between copper and a resin or the like may be maintained even with a low etching amount.

Abstract: This invention relates to the recovery of energy in the manufacture of sulfuric acid, and more particularly to enhanced recovery of energy from the absorption of wet SO3 in sulfuric acid. The invention is further directed to control of mist formation during SO3 absorption, and of the sulfuric acid mist content of the gas stream leaving the SO3 absorption step in a process wherein SO3 absorption energy is recovered from absorption acid in useful form.

Abstract: A contaminant gas is removed from a feed gas in two absorption and stripping circuits operated in tandem. The gas is first passed through a rich gas absorber producing a rich absorption liquor from which contaminant gas is stripped in a rich liquor stripper. A lean gas exiting the rich gas absorber is passed through a lean gas absorber, producing a lean absorption liquor from which contaminant gas is stripper in a lean liquor stripper. Regenerated absorption media exiting the respective strippers are recirculated to the respective absorbers.

Abstract: A method for producing a cellular wheel, wherein a tool having a cylindrical inner shell, the diameter of which corresponds to the inner diameter of the subsequent sleeve, is placed on the free end edges of the fins for fixing the angular orientation of the fins. A molding material mixture is applied in the cells bounded by the inner shell of the tool and the fins and cured. After removing the tool, the subsequent sleeve is placed on the free end edges of the fins fixed in place by the cured molding material mixture. The free end edges of the fins are joined to the subsequent sleeve to the cells. The cured molding material mixture is thermally treated and is removed from the cells.

Abstract: Valve with a spool for the control of the start and of the stop of a hydraulic motor in which an oblong spool is mobile within an oblong seat obtained in a body, the movement of the spool being controllable in two opposite directions of movement by means of control means, the spool being housed within an intermediate portion of the seat in which the intermediate portion has a section size essentially equal to the section size of the spool, the spool being equipped with at least one intermediate portion with respect to a first end and to a second end with a section size smaller than the section size of the intermediate portion of the seat giving rise to the formation of an interstice intended for the reciprocal connection of at least one first duct and a second duct.

Abstract: A contact process for manufacture of sulfuric acid in which the vapor phase heat of formation of sulfuric acid in the sulfur trioxide conversion gas and the heat of absorption of SO3 in sulfuric acid is recovered by transfer of heat from the absorption acid to high pressure boiler feed water that is fed to a waste heat boiler where steam is generated at a pressure of at least 40 bar by transfer of heat from sulfur dioxide combustion gas.

Abstract: An object is to provide a mold molding method which can provide a high general-purpose property and can reduce a usage quantity of molding sand. In a method for molding a mold (sand mold) by self-hardening molding sand using a caking additive, the mold is molded by disposing hollow spheres each formed to have no clearance therein among molding sand mixed with the caking additive. Preferably, the hollow sphere may be formed by working two metal plates to semispherical shapes and then connecting the semispherical-shaped metal plates to each other by welding their respective whole peripheries. A specific gravity of the hollow sphere may be 0.5 to 2.0 times a specific gravity of the molding sand.

Abstract: A load characteristic adjustment system for use with a linear-spring forming apparatus is provided, in which the load characteristic of a conic spring can be conveniently and efficiently regulated during the formation of the spring, thereby reliving much of a physical burden of a worker to find an optimum load characteristic of a coil spring. The load characteristics adjustment system comprises: a linear material feeder for feeding a linear material; at least one spring forming tool facing the linear material feeder, adapted to abut against the linear material to coil the linear material; spiraling means for spiraling the coiled linear material; and coil-diameter varying means for varying the diameter of the coiled linear material. The load characteristic adjustment system controls the linear material feeder so as to feed the linear material at a regulated constant acceleration to adjust the load characteristic of the conical spring formed.

Abstract: The present invention relates to a push button switch 5 comprising a curved deformable contact element 4. The push button switch 5 comprises at least one first terminal point 1, at least one second terminal point 2, and at least one third terminal point 3. The deformable contact element 4 is switched between a first and a second state. In the first state the deformable contact element 4 connects the at least one first terminal point 1 with the at least one second terminal point 2 whereas there is neither contact between the at least one third terminal point 3 and the at least one first terminal point 1 nor between the at least one third terminal point 3 and the at least one second terminal point 2.

Abstract: Disclosed is a microetching solution for copper, a replenishment solution therefor and a method for production of a wiring board. The microetching solution of the present invention consists of an aqueous solution containing a cupric ion, an organic acid, a halide ion, an amino group-containing compound having a molecular weight of 17 to 400 and a polymer. The polymer is a water-soluble polymer including a polyamine chain and/or a cationic group and having a weight average molecular weight of 1000 or more. When a concentration of the amino group-containing compound is A % by weight and a concentration of the polymer is B % by weight, a value of A/B of the microetching solution of the present invention is 50 to 6000. According to the present invention, an adhesion between copper and a resin or the like may be maintained even with a low etching amount.

Abstract: Disclosed is a microetching solution, a replenishment solution added to said microetching solution and a method for production of a wiring board using said microetching solution. The microetching solution for copper consists of an aqueous solution containing a cupric ion, an organic acid, a halide ion, a polymer and a nonionic surfactant. The polymer is a water-soluble polymer including a polyamine chain and/or a cationic group and having a weight average molecular weight of 1000 or more. In the microetching solution of the present invention, a value of A/B is 2000 to 9000 and a value of A/D is 500 to 9000, where a concentration of the halide ion is A % by weight, a concentration of the polymer is B % by weight and a concentration of the nonionic surfactant is D % by weight. Using this microetching solution, adhesion to a resin or the like can be uniformly maintained even with a low etching amount.

Abstract: A fiber bed assembly used to remove aerosols and/or wetted soluble solids from a moving gas stream includes a fiber bed support and a fiber bed supported by the fiber bed support so that the gas stream passes through the fiber bed moving from an upstream space to a downstream space with respect to the fiber bed. A re-entrainment control device is located within a downstream space defined by the fiber bed so that at least a portion of the gas stream passes through the re-entrainment control device. The re-entrainment control device is shaped to change the direction of the average flow path of the gas stream as the gas stream passes through the re-entrainment control device so as to cause aerosols and/or wettable solids contained therein to be separated from the gas stream by inertial force. A re-entrainment control device and method of use are also disclosed.

Abstract: This invention relates to processes for the selective removal of contaminants from effluent gases. More particularly, various embodiments of the present invention relate to selective removal and recovery of sulfur dioxide from effluent gases in a regenerative sulfur dioxide absorption/desorption process that achieves favorable energy efficiency. Energy is recovered from a wet stripper overhead gas stream produced in the desorption cycle by indirect transfer of heat from the stripper gas to a cooling medium and used to generate steam for use in stripping contaminants from the absorption liquor. The absorption zone may optionally be cooled to enhance the capacity of the absorption medium for absorption of a contaminant gas, thereby lowering the volume of absorption medium and contaminant-enriched absorption liquor that must be pumped, handled, heated and cooled in the absorption/desorption cycle.