Patent application number | Description | Published |
20100000974 | ELECTRODE FOR ELECTRICAL-DISCHARGE SURFACE TREATMENT AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing an electrode for electrical-discharge surface treatment includes kneading a first electrode material composed of at least one of metal powder and insulating powder and a second electrode material composed of conductive organic bonding agent in which a conductive resin is dissolved or dispersed in a solvent, to fabricate a slurry; molding the slurry, to form a compact; and desiccating the compact at a temperature below a thermal decomposition initiating temperature at which a thermal decomposition of the conductive organic bonding agent starts. | 01-07-2010 |
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 |
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 |
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 |
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 |
20150211137 | 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 ( | 07-30-2015 |