Patent application number | Description | Published |
20090068049 | ROTARY EQUIPMENT AND OIL PUMP - An oil pump has: a base part having a working chamber; and a rotor provided rotatably in the working chamber. The base part is configured by a plurality of split bodies. At least one of the plurality of split bodies is made of aluminum alloy, and on which an opposed sliding surface made of a ceramic film is formed. The ceramic film of the opposed sliding surface has a hardness of approximately Hv 500 to 1100 and a surface roughness of approximately 2 to 8 micrometers, and contains α-alumina and zirconia. | 03-12-2009 |
20090301887 | METAL PART AND METHOD OF MANUFACTURING METAL PART - A method of manufacturing a metal part in which a base material of an aluminum alloy as an anode is immersed in an electrolyte together with a cathode, and at least a portion of a surface of the base material is anodized and coated with an anodic oxide film, the method includes: increasing a current density provided to both the anode and the cathode from an initial current density of 0 A/dm | 12-10-2009 |
20130193371 | METHOD OF MANUFACTURING SECONDARY BATTERY - A method of manufacturing a secondary battery, using an electrode plate having an electrode mixture layer formed from an electrode mixture paste, includes performing wet preliminary kneading to knead a powder and a solvent with a stirrer, while measuring kneading torque, determining a mixing ratio of the powder to the solvent used in the wet preliminary kneading in the case where the kneading torque once increases as kneading time passes from start of kneading, reaches a peak value, and then decreases, as a desirable mixing ratio, and performing main kneading to mix and knead the powder and the solvent of the electrode mixture paste, at the mixing ratio determined as the desirable mixing ratio, at a shearing speed that does not exceed a speed of shearing a mixture of the powder and the solvent with the stirrer during the wet preliminary kneading, and producing the electrode mixture paste. | 08-01-2013 |
20140056095 | KNEADING DEVICE AND KNEADING METHOD FOR ELECTRICITY STORAGE MATERIAL - A kneading device includes an index setting portion that sets an index for kneading based on a motion energy of particles of an electricity storage material, a mean free path of the particles of the electricity storage material, and a kneading time for the electricity storage material, a condition setting portion that sets a condition for the kneading based on the set index for the kneading, and a kneading control portion that controls the kneading of the electricity storage material in accordance with the set condition for the kneading. | 02-27-2014 |
20140374643 | MAGNET MANUFACTURING METHOD AND MAGNET - There is provided a magnet manufacturing method with which a high residual magnetic flux density is obtained without using dysprosium (Dy) and without using a bonding agent. Magnetic powders made of a hard magnetic material formed of a R—Fe—N compound containing a rare earth element as R or formed of a Fe—N compound are used. In a pressurizing step, the magnetic powders are pressurized by molds multiple times to form a primary compact. In a baking step, a secondary compact is formed by heating the primary compact in an oxidizing atmosphere at a temperature lower than a decomposition temperature of the magnetic powders to bond together the outer surfaces of the adjacent magnetic powders with oxide films formed on the outer surfaces of the magnetic powders. | 12-25-2014 |
20150200396 | APPARATUS AND METHOD FOR MANUFACTURING AN ELECTRICITY STORAGE MATERIAL - An apparatus and method for manufacturing an electricity storage material are provided which allow easily measuring the dissolution rate to solubility of a solution of a powder thickener dissolved in a liquid solvent. An apparatus for manufacturing an electricity storage material includes: a dissolving device that dissolves in a liquid solvent a thickener as powder that is ionized when dissolved; and a dissolution-rate-to-solubility determining device that measures conductivity of the solution produced by the dissolving device and determines a dissolution rate to solubility of the solution based on the measured conductivity. The dissolution rate to solubility can thus be determined without the need to stop the dissolving device during dissolution of the thickener in the liquid solvent. This can significantly improve production efficiency. Since excessive operation of the dissolving device can be prevented, energy saving can be achieved. | 07-16-2015 |
20150239151 | KNEADING DEVICE - A kneading device includes: a preliminary kneading device that produces a preslurry by agitating a powder and a liquid introduced and transferring them while wetting the powder with the liquid; and a main kneading device that causes the powder to be uniformly dispersed in the preslurry supplied from the preliminary kneading device to produce a slurry. The main kneading device includes a gap defined by two conical surfaces that face each other with a predetermined distance therebetween and rotate relative to each other about their central axes. The slurry is produced by passing the preslurry through the gap. With the preliminary kneading device, the powder is dispersed in the liquid after conforming to the liquid, which suppress damage to the powder. The conditions of main kneading can be changed only by adjusting the gap, which facilitates the operation of changing the conditions of the main kneading. | 08-27-2015 |
20150243963 | APPARATUS AND PROCESS FOR PRODUCING ELECTRICITY STORAGE MATERIAL - A production apparatus for producing an electricity storage material is provided. The electricity storage material includes at least a thickener and an active material. The production apparatus includes a solution production device and a mixture-kneading device. The solution production device produces a surfactant-containing solution of the thickener. The mixture-kneading device kneads the solution together with a powder of the active material. | 08-27-2015 |