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 |
20080250363 | Design Support Apparatus for Semiconductor Devices - A design support apparatus supports wiring design for bond wires that connect a semiconductor chip and an interposer. The design support apparatus includes a creating unit that creates simulated design data simulating occurrence of fluctuation in an arrangement position of a semiconductor chip on an interposer and occurrence of fluctuation in bond wire connection terminal positions of the interposer, and an analyzing unit that analyzes, based on the simulated design data, deficiencies in manufacturing of semiconductor devices due to the fluctuation in the arrangement position of the semiconductor chip on the interposer and the fluctuation in the bond wire connection terminal positions of the interposer. | 10-09-2008 |
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 |
20090127110 | METHOD OF MANUFACTURING ELECTRODE FOR ELECTRICAL-DISCHARGE SURFACE TREATMENT, AND ELECTRODE FOR ELECTRICAL-DISCHARGE SURFACE TREATMENT - A method of manufacturing an electrode for electrical-discharge surface treatment includes increasing oxygen content in the powder; mixing the powder, in which the oxygen content is increased, with an organic binder and a solvent to prepare a liquid mixture; granulating the powder in the liquid mixture to form granulated powder; and forming the granulated powder to prepare a compact in which an oxygen concentration ranges from 4 weight % to 16 weight %. | 05-21-2009 |
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 |
20100203345 | ELECTRICAL-DISCHARGE SURFACE-TREATMENT ELECTRODE AND METAL COATING FILM FORMED USING THE SAME - An objective is to provide an electrical-discharge surface-treatment electrode by which a high-coverage zinc coating film can be formed. The electrical-discharge surface-treatment electrode is made by uniformly distributing and compression-molding zinc-based powders including at least one of a pure-metal zinc powder and a metal zinc powder whose surface is oxidized, and zinc-oxide powders whose content rate ranges from 5 to 90 volume percent with respect to the zinc-based powders, to obtain a porosity ranging from 10 to 55 volume percent; then, the zinc coating film is formed using the electrical-discharge surface-treatment electrode. | 08-12-2010 |
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 |
20120056133 | METHOD OF MANUFACTURING ELECTRODE FOR ELECTRICAL-DISCHARGE SURFACE TREATMENT, AND ELECTRODE FOR ELECTRICAL-DISCHARGE SURFACE TREATMENT - An electrode for electrical-discharge surface treatment is made of a compact obtained by forming metal powder, metal compound powder, or conductive ceramics powder. Pulsed discharges between the electrode and a work in a working fluid or in air cause a film to form at the surface of the work, the film being made of a material of the electrode or made of a substance with which the material of the electrode reacts. A resistance of a surface of the electrode measured using a four-terminal method ranges from 5×10 | 03-08-2012 |
20120057983 | METHOD FOR FORMING SURFACE LAYER, METHOD FOR FORMING EROSION RESISTANT COMPONENT AND STEAM TURBINE BLADE - A method for forming a surface layer, the method including: arranging a member in a machining fluid; and forming a surface layer including silicon by supplying silicon component from the silicon electrode to the member side by applying a predetermined voltage and generating electric discharge, wherein a value of an electric discharge detection level is set to be equal to or larger than a value obtained by adding a voltage depression at the silicon electrode to an arc potential during electric discharge, and wherein the surface layer is formed on a surface of the member by repetitively performing, after the voltage is applied, detecting the electric discharge generated between the silicon electrode and the member by detecting a drop of the voltage to be lower than the electric discharge detection level, stopping applying the voltage for a predetermined time, and applying the voltage again after a predetermined break time. | 03-08-2012 |
20120097367 | INDOOR UNIT OF AIR CONDITIONER - The present invention provides indoor unit of air conditioner including a plurality of heat-exchangers, main-unit casing that accommodates heat-exchangers and includes suction air duct extending from air inlet to heat-exchangers and blowout air duct extending from heat-exchangers to air outlet, and air blower that is provided in blowout air duct and blows out air taken in from air inlet, from air outlet after having air passed through heat-exchangers. In indoor unit, heat-exchangers include rear-side heat-exchanger arranged opposite to air blower on upper side in main-unit casing with lower end thereof being arranged on rear surface side of main-unit casing, backplane that constitutes rear-side duct wall of blowout air duct is provided on rear surface side of main-unit casing, and heat transfer unit that transfers heat of air before passing through heat-exchangers or heat of air outside main-unit casing to backplane is provided in main-unit casing | 04-26-2012 |
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 |
20120128502 | EROSION RESISTANT MACHINE COMPONENT, METHOD FOR FORMING SURFACE LAYER OF MACHINE COMPONENT, AND METHOD FOR MANUFACTURING STEAM TURBINE - A method for forming a surface layer, the purpose thereof is to form a high erosion resistant film. The method for forming a surface layer includes: arranging a member ( | 05-24-2012 |
20130069015 | ELECTRODE FOR ELECTRIC-DISCHARGE SURFACE TREATMENT AND ELECTRIC-DISCHARGE SURFACE TREATMENT COATING - In order to establish an electric-discharge surface treatment capable of forming a smooth high-hardness coating, in the electric-discharge surface treatment in which pulsed electric discharge is generated between the electrode and a base material in a machining fluid or in the air by using a green compact, which is formed by compressing powder of an electrode material, as an electrode, and by using energy of the electric discharge, a coating including the electrode material or a reaction product of the electrode material reacted by the electric discharge energy is formed on a surface of the base material, wherein, as the powder of the electrode material, a mixed powder formed by mixing 10 to 75 vol % of Si powder to powder of a hard material is used. | 03-21-2013 |
20130164496 | SURFACE LAYER FORMING METHOD USING ELECTRICAL DISCHARGE MACHINING AND SURFACE LAYER - Using electrical discharge surface treatment of moving an electrode material to a work piece by repeatedly generating pulsed electrical discharge between an electrode for electrical discharge surface treatment ( | 06-27-2013 |
20130209705 | ELECTRICAL DISCHARGE SURFACE TREATMENT METHOD - There is an electrical discharge surface treatment method of forming a surface layer on a work piece surface by making pulsed electrical discharge repeatedly occur between a work piece ( | 08-15-2013 |
20130292612 | ELECTRODE FOR ELECTRIC-DISCHARGE SURFACE TREATMENT AND METHOD FOR FORMING ELECTRODE FOR ELECTRIC-DISCHARGE SURFACE TREATMENT - An electrode for electric-discharge surface treatment, which is used in the electric-discharge surface treatment in which pulsed electric discharge is generated between the electrode and a base material in a machining fluid or in the air by using a green compact, which is formed by compressing powder of an electrode material, as the electrode, and by using energy of the electric discharge, a coating including the electrode material or a reaction product of the electrode material reacted by the electric discharge energy is formed on a surface of a base material, wherein a mixture of Si powder having an average particle diameter of not less than 0.3 μm and not more than 10 μm and hard material powder having an average particle diameter of not less than 0.3 μm and not more than 10 μm is used as the electrode material. | 11-07-2013 |
20130319324 | DISCHARGE SURFACE TREATMENT APPARATUS - A discharge surface treatment apparatus generates a pulsed discharge between poles, that is, between a discharge electrode and a workpiece, and the discharge electrode is obtained by compression-molding of any one of a metal powder, a powder of a metal compound, and a powder of ceramics or a mixture thereof. The apparatus forms a film made of an electrode material or the like on a workpiece surface by thermal energy due to the discharge. The apparatus includes: a capacitor that is connected to any one of the discharge electrode and the workpiece at one end; and a parallel circuit of a resistor and a diode, which is provided between another one of the discharge electrode and the workpiece and another end of the capacitor via a connection line. | 12-05-2013 |