Patent application number | Description | Published |
20080230374 | ELECTRICAL-DISCHARGE SURFACE-TREATMENT METHOD - An electrode for an electrical-discharge surface-treatment method is molded with a metallic powder or a metallic compound powder having an average grain diameter of 6 micrometers to 10 micrometers. A coat on a surface of a workpiece is formed with a material constituting the electrode or a substance that is generated by a reaction of the material due to a pulse-like electrical discharge. The coat is built up with a material containing metal as a main constituent under conditions of a width of a current pulse for the pulse-like electrical discharge in a range of 50 microseconds to 500 microseconds and a peak of the current pulse equal to or less than 30 amperes. | 09-25-2008 |
20090092845 | Electrode for Electric Discharge Surface Treatment, Method of Electric Discharge Surface Treatment, and Apparatus for Electric Discharge Surface Treatment - An apparatus and a method to form a thick coat by an in-liquid pulsed electric discharge treatment, the electrode contains 40 volume % or more metallic material that is not carbonized or is hard to be carbonized. | 04-09-2009 |
20090200748 | ROTATING MEMBER AND METHOD FOR COATING THE SAME - A pulsed discharge is generated between tip ends of a rotating member such as a blade and a discharge electrode including a hard material such as cBN in dielectric liquid or gas by a power supply for discharge to melt the discharge electrode, and a part of the discharge electrode is attached to the tip end of the rotating member to form an abrasive coating film including the hard materials such as cBN. | 08-13-2009 |
20090246463 | ELECTRODE FOR DISCHARGE SURFACE TREATMENT, DISCHARGE SURFACE TREATMENT METHOD, FILM, AND FILM FORMING METHOD - An electrode that is used for discharge surface treatment in which, with a compact molded from metal powders or a compact obtained by heating the molded compact as an electrode, pulsed electric discharge is generated between the electrode and a workpiece to form a film of an electrode material, or a film of substance that reacts with the electrode material on a surface of the workpiece by discharge energy. The electrode contains 90 weight percent or more of one of Zn powders, Sn powders, and Ni powders. By using such an electrode for discharge surface treatment, a Zn, Sn, or Ni film less likely to separate from the surface of the workpiece can be formed, and the film can be a phosphide or sulfide reaction film in lubricant containing phosphorus or sulfur. | 10-01-2009 |
20100080648 | PRODUCTION METHOD OF METAL PRODUCT, METAL PRODUCT, CONNECTION METHOD OF METAL COMPONENT AND CONNECTION STRUCTURE - A deposition is gradually formed by molding a product main body, removing a defect periphery including a defect generated on a surface to be treated of the product main body by molding so that a recess portion is formed on the surface to be treated of the product main body, employing a molded electrode composed of a molded body molded from a powder of a metal or the molded body processed with a heat treatment, and generating a pulsing electric discharge between the recess portion periphery including the recess portion and the molded electrode in an electrically insulating liquid or gas so that a material of the molded electrode or a reaction substance of the material carries out deposition and such at the recess portion periphery by energy of the electric discharge. | 04-01-2010 |
20100086398 | METHOD FOR COATING SLIDING SURFACE OF HIGH-TEMPERATURE MEMBER, HIGH-TEMPERATURE MEMBER AND ELECTRODE FOR ELECTRO-DISCHARGE SURFACE TREATMENT - A sliding surface of a high-temperature portion is subjected to an electro-discharge surface treatment with one or both of a high-temperature hard material (4) and a material having a lubricating property at a high temperature (6). The high-temperature hard material (4) is any or a mixture of cBN, TiC, TiN, TiAlN, TiB | 04-08-2010 |
20100124490 | ROTATING MEMBER AND METHOD FOR COATING THE SAME - A pulsed discharge is generated between tip ends of a rotating member such as a blade and a discharge electrode including a hard material such as cBN in dielectric liquid or gas by a power supply for discharge to melt the discharge electrode, and a part of the discharge electrode is attached to the tip end of the rotating member to form an abrasive coating film including the hard materials such as cBN. | 05-20-2010 |
20100180725 | ELECTRODE FOR DISCHARGE SURFACE TREATMENT, MANUFACTURING METHOD AND EVALUATION METHOD FOR ELECTRODE FOR DISCHARGE SURFACE TREATMENT, DISCHARGE SURFACE TREATMENT APPARATUS, AND DISCHARGE SURFACE TREATMENT METHOD - An electrode is used to perform discharge surface treatment of a work piece. The electrode is made of a green compact obtained by compression-molding an electrode material including powder of any of a metal, a metallic compound, and ceramics. The discharge surface treatment includes generating an electric discharge between the electrode and the work piece in an atmosphere of a machining medium and forming a film consisting of a machining material on a surface of a work piece using energy produced by the electric discharge. The powder has an average particle diameter of 5 micrometer to 10 micrometers, and contains 40 volume percent or more of a component not forming or less easily forming carbide as a component for forming the film on the work piece. The electrode has a hardness in a range of B to 8B tested with a pencil scratch test for a coating film. | 07-22-2010 |
20110027099 | METAL COMPONENT, TURBINE COMPONENT, GAS TURBINE ENGINE, SURFACE PROCESSING METHOD, AND STEAM TURBINE ENGINE - Formation of a protective coating having oxidation resistance on a portion to be processed of a component main body by employing an electrode composed of a molded body molded from mixed powders of one or more of an aluminum powder, an aluminum alloy powder, a chromium powder and a chromium alloy powder, or the molded body processed with a heat treatment, generating a pulsing electric discharge between the portion to be processed of the component main body and the electrode in an electrically insulating liquid or gas so that an electrode material of the electrode is adhered to the portion to be processed of the component main body by energy of the electric discharges, and further keeping the portion to be processed of the component main body and the electrode material adhered thereto in high temperatures so that the electrode material adhered thereto diffuses into a base material of the component main body. | 02-03-2011 |
20120018117 | INDOOR UNIT OF AIR CONDITIONER AND AIR CONDITIONER - An indoor unit includes a casing having a suction port formed in an upper part and a blow-out port formed on a lower side at a front face part, an axial-flow or diagonal-flow fan provided on the downstream side of the suction port in the casing, and a heat exchanger provided on the downstream side of the fan and on the upstream side of the blow-out port in the casing, in which air blown out of the fan and refrigerant are heat-exchanged. | 01-26-2012 |
20120114956 | TURBINE COMPONENT, GAS TURBINE ENGINE, PRODUCTION METHOD OF TURBINE COMPONENT, SURFACE TREATMENT METHOD THEREOF, BLADE COMPONENT, METAL COMPONENT AND STEAM TURBINE ENGINE - What disclosed is formation of a protective coating having oxidation resistance and abrasiveness at a portion to be processed of a component main body by employing an electrode composed of a molded body molded form a mixed powder in which a powder of an oxidation-resistant metal and a powder of a ceramic is mixed or the molded body processed with a heat treatment, generating a pulsing electric discharge between the electrode and the portion to be processed of the component main body so that an electrode material of the electrode and such carry out deposition, diffusion and/or welding on the portion to be processed of the component main body by energy of the electric discharge. | 05-10-2012 |
20150069866 | ROTATING ELECTRIC MACHINE - A cooling device mounted in a flow path formed by an internal space of a cooling fluid duct being mounted on the periphery of a frame of a rotating electric machine is configured in such a manner that at least one of the end-face portions between a first end-face portion through which a cooling fluid flows into the cooling device and a second end-face portion from which the cooling fluid flows out thereof is placed tilting with respect to at least one of a first orthogonal surface perpendicular to an inflow direction of the cooling fluid and a second orthogonal surface perpendicular to an outflow direction of the cooling fluid, or with respect to a flow-path-width's direction perpendicular to a direction in which an axis line of a stator extends. | 03-12-2015 |