Patent application number | Description | Published |
20110308759 | HOT-TOP FOR CONTINUOUS CASTING AND METHOD OF CONTINUOUS CASTING - A hot-top is disclosed that continuously casts an ingot by pouring molten metal down into a cylindrical space in a continuous casting mold from a molten metal flow-down port. The inner shape of a flow-down port forming part corresponds to the inner shape of a cylindrical space forming part. The hot-top forms an annular groove about the molten metal flow-down port, and has a barrier between the annular groove and the flow-down port. | 12-22-2011 |
20130171021 | FREE CASTING METHOD, FREE CASTING APPARATUS, AND CASTING - A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal led out along a set passage depending on a desired casting shape, wherein the retained molten metal is solidified after being formed into the desired casting shape by applying an external force thereto at positions between an unrestrained root portion of the retained molten metal in vicinity of the surface level of the molten metal and a solidification interface defined as a boundary between the retained molten metal and the formed body in the forming step. | 07-04-2013 |
20140110375 | SURFACE PROCESSING DEVICE AND SURFACE PROCESSING METHOD - In the present invention, the form in which roughness is formed on the surface of an article being processed through plasma exposure is controlled by varying the frequency for a main voltage applied to two discharge electrodes, a conductive housing and a rod shaped electrode, provided in a plasma generating unit and the frequency for a bias voltage applied between the conductive housing ( | 04-24-2014 |
20150128989 | ROTARY ROLLER SURFACE CLEANING METHOD AND ROTARY ROLLER SURFACE CLEANING APPARATUS - A rotary roller surface cleaning method and a rotary roller surface cleaning apparatus which, when foreign matter is detected on a surface of a rotary roller of a quenched ribbon manufacturing apparatus, remove the foreign matter by irradiating the foreign matter with a laser having an output value corresponding to a thickness of the foreign matter. At least one of a rotation speed of the rotary roller and a laser response time is adjusted such that the rotation speed of the rotary roller and the laser response time satisfy a relational expression V×S≦D/1000 (D≧0.1 mm), where the rotation speed of the rotary roller is V (m/sec), the laser response time is S (sec), and a length of the foreign matter along a circumferential direction of the rotary roller is D (mm). | 05-14-2015 |
20150147709 | HEAT TREATMENT METHOD, HEAT-TREATING FURNACE, AND HEAT TREATMENT SYSTEM - A work is subjected to a heat treatment in a heat-treating furnace. First, the work is carried into the heat-treating furnace. The work in the heat-treating furnace is immersed in a heat source solvent. In the heat-treating furnace, a superheated steam atmosphere is formed. The work is exposed in the heat-treating furnace under the superheated steam atmosphere. Then, the work is carried out of the heat-treating furnace. | 05-28-2015 |
20150239038 | FREE CASTING METHOD, FREE CASTING APPARATUS, AND CASTING - A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area (P) provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films (F) generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal (MS) led out along a set passage (L | 08-27-2015 |
20160055969 | MANUFACTURING METHOD OF RARE-EARTH MAGNET - A manufacturing method of a rare-earth magnet includes: manufacturing a first sealing body by filling a graphite container with a magnetic powder to be a rare-earth magnet material and by sealing the graphite container; manufacturing a sintered body by sintering the first sealing body to manufacture a second sealing body in which the sintered body is accommodated; and manufacturing a rare-earth magnet by performing hot plastic working on the second sealing body to give magnetic anisotropy to the sintered body. | 02-25-2016 |
20160104572 | METHOD FOR MANUFACTURING RARE-EARTH MAGNETS - Provided is a method for manufacturing a rare-earth magnet capable of preventing the lubricant from flowing down during hot deformation processing, whereby friction force can be made as uniform as possible at the overall region of the sintered body, and so the rare-earth magnet manufactured can have less distribution of magnetic performance. A method for manufacturing a rare-earth magnet includes: a first step of sintering magnetic powder MF as a material of the rare-earth magnet to prepare a sintered body S; and a second step of placing the sintered body S in a cavity K of a forming die M made up of a die D and a lower punch P and/or an upper punch P sliding in the die D, and performing hot deformation processing of the sintered body S to give magnetic anisotropy to the sintered body to manufacture the rare-earth magnet C. In the second step, a lubrication sheet | 04-14-2016 |