Patent application number | Description | Published |
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 |
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 |
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 |
Patent application number | Description | Published |
20120043813 | POWER CONTROL APPARATUS AND METHOD - According to one embodiment, a power control apparatus includes a calculation unit, a detection unit, a storage unit, a selection unit and an execution unit. The calculation unit calculates a spare power capacity and a total spare power capacity. The detection unit detects whether a required spare capacity is short, based on the required spare capacity and each of the spare power capacity and the total spare power capacity. The storage unit stores power control operation items. The selection unit selects power control operation items if the required spare capacity is short. The execution unit executes application operation of one or more the power control operation items until the required spare capacity becomes available, and executes waiting operation of one or more power control operation items executing the application operation if the required spare capacity is available. | 02-23-2012 |
20120242451 | GENERATOR SYSTEM MONITORING APPARATUS AND COMPUTER READABLE MEDIUM - There is provided a generator system monitoring apparatus for a generator system including a generator, a first measuring apparatus and a second measuring apparatus. A power-generation state determining unit determines whether the generator is generating the electric power or not. A measurement information acquiring unit acquires, when it is determined the generator is not generating the electric power, a first measurement value and a second measurement value from the generator system, the first measuring apparatus measuring electric power generated by the generator to obtain the first measurement value, and the second measuring apparatus measuring the electric power generated by the generator to obtain the second measurement value. A system state determining unit determines whether the first measuring apparatus has an abnormality or not by comparing the first measurement value and the second measurement value with each other. | 09-27-2012 |
20120249048 | CHARGE/DISCHARGE DETERMINING APPARATUS AND COMPUTER-READABLE MEDIUM - There is provided a charge/discharge determining apparatus for managing a natural energy power generation facility, a power plant and a plurality of batteries in an electrical power system. The apparatus includes: a system information acquiring section configured to acquire an actual value of natural energy power that is supplied from the natural energy power generation facility to the electrical power system; a battery information acquiring section configured to acquire battery electric energy information from the respective batteries, wherein the battery electric energy information indicates charge/discharge electric energies of the respective batteries which can be discharged from or charged in the respective batteries; and a determining section configured to determine at least one battery to be charged/discharged from among the plurality of batteries, wherein when an absolute value of a difference between the actual value and a predicted value of the natural energy power is larger than a threshold value. | 10-04-2012 |
20120249152 | CHARGING/DISCHARGING DETERMINATION APPARATUS AND COMPUTER-READABLE NON-TRANSITORY MEDIUM STORING CHARGING/DISCHARGING DETERMINATION PROGRAM - According to one exemplary embodiment, a charging/discharging determination apparatus includes: a receiving module which receives information of a rated capacity of a battery; and a determination module which determines that charging or a discharge of the battery is permitted if an absolute value of a difference between the rated capacity and a measured capacity which is an actual capacity of the battery is within a threshold value. | 10-04-2012 |
20120250864 | ENERGY MANAGEMENT APPARATUS AND ENERGY MANAGEMENT SYSTEM - An energy management apparatus includes: a communicator capable of communicating with at least a meter apparatus among the meter apparatus and a server apparatus that collects measurement information from the meter apparatus; a device registration processor configured to determine whether the direct communicator to the server apparatus can communicate with the server apparatus; if the direct communication is possible, transmit to the server apparatus a device registration message that requests to register a device identifier of the meter apparatus and a device identifier of the energy management apparatus; and, if the direct communication to the server apparatus is not possible, transmit the device registration message for the server apparatus to the meter apparatus; a communication processor configured to obtain energy control information of the device transmitted from the server apparatus; and a control executor configured to control the used energy amount of the device based on the energy control information. | 10-04-2012 |
20130009607 | DETERMINATION DEVICE, DETERMINING METHOD AND DETERMINATION PROGRAM - A determination determines permission/forbiddance to charge an accumulator that obtains electrical power from a power grid network. The determination device comprises a first acquisition unit configured to acquire first information about a requested power amount requested to charge the accumulator, a second acquisition unit configured to acquire second information about an available power amount that can be provided from the power grid network, and a determination unit configured to determine permission or forbiddance with respect to the accumulator based on the first information and the second information. | 01-10-2013 |
20130082640 | CHARGE/DISCHARGE INSTRUCTION APPARATUS, CHARGE/DISCHARGE INSTRUCTION METHOD AND CHARGE/DISCHARGE INSTRUCTION PROGRAM - One embodiment provides a charge/discharge instruction apparatus, including: a charge/discharge instruction unit which instructs a charge/discharge determination apparatus to perform a charge/discharge control of a battery; a charge/discharge information storage unit which stores charge/discharge information for charging/discharging the battery; a control unit which controls an access request to the battery based on the stored charge/discharge information and contents of the charge/discharge control; a generating unit which generates a communication message concerned with the access request controlled by the control unit; and a communication unit which transmits the communication message concerned with the access request to the charge/discharge determination apparatus. | 04-04-2013 |
20130082641 | CHARGE/DISCHARGE DETERMINATION APPARATUS, CHARGE/DISCHARGE DETERMINATION METHOD AND CHARGE/DISCHARGE DETERMINATION PROGRAM - One embodiment provides a charge/discharge determination apparatus for performing a charge/discharge control of a battery based on instructions given from charge/discharge instruction apparatuses, including: a battery information storage unit which stores battery information concerned with the battery; a charge/discharge information storage unit which stores charge/discharge information for charging/discharging the battery; a communication unit which receives a communication message concerned with an access request from each charge/discharge instruction apparatus; and a control unit which controls access from each charge/discharge instruction apparatus based on the battery information, the charge/discharge information and contents of the access request. | 04-04-2013 |
20130257351 | CHARGE-DISCHARGE CONTROL DEVICE, CHARGE-DISCHARGE MONITORING DEVICE, CHARGE-DISCHARGE CONTROL SYSTEM, AND COMPUTER PROGRAM PRODUCT - According to an embodiment, a charge-discharge control device includes a receiving unit, a selecting unit, and a group controller. The receiving unit receives feasibility information. The selecting unit selects, of electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to a plurality of charging groups, one electric power device as a representative device of the charging group to which belongs that electric power device; and selects, of electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to a plurality of discharging groups, one electric power device as a representative device of the discharging group to which belongs that electric power device. Via the selected representative device, the group controller controls the other electric power devices belonging to the charging group or the discharging group to which belongs the selected representative device. | 10-03-2013 |
20130257384 | CHARGE-DISCHARGE CONTROL DEVICE, CHARGE-DISCHARGE CONTROL SYSTEM, AND COMPUTER PROGRAM PRODUCT - According to an embodiment, a charge-discharge control device includes a receiving unit and a group controller. The receiving unit is configured to receive schedule information that indicates a schedule time at which a plurality of electric power devices, each having at least either a charging function or a discharging function, performs at least either charging or discharging. The group controller is configured to, according to the schedule information, perform grouping in such a way that each of the electric power devices belongs to either one of a charging group for performing charging and a discharging group for performing discharging, and control, on a group-by-group basis, each of the electric power devices put in the charging group and each of the electric power devices put in the discharging group. | 10-03-2013 |
20140042978 | CHARGE/DISCHARGE INSTRUCTING APPARATUS AND NON-TRANSITORY COMPUTER READABLE MEDIUM - In one embodiment, there is provided a charge-discharge instructing apparatus. The apparatus includes: an acquiring module configured to acquire specific information and location information for each of a plurality of battery energy storage systems, wherein the specific information represents an electrical characteristic of a battery of each of the battery energy storage systems, and the location information represents an installation position of each of the battery energy storage systems; a group determining module configured to select some of the battery energy storage systems from among the plurality of battery energy storage systems to make a group composed of the selected battery energy storage systems, based on the specific information and the location information; and a managing module configured to send a charge-discharge control instruction to the battery energy storage systems belonging to the group. | 02-13-2014 |
20140077596 | POWER ELECTRONICS DEVICE, COOPERATIVE CONTROL METHOD, COOPERATIVE CONTROL SYSTEM AND COMPUTER READABLE MEDIUM - There is provided a power electronics device including: a first connection unit, a second connection unit, a power conversion unit and a control unit. The first connection unit and the second connection unit are connected to a first power line and a second power line of plural power lines. The power conversion unit converts power from one of the first and second connection units outputs converted power from the other of the first and second connection units. The control unit selects a master device from power electronics devices connected to a third power line that is one of the power lines including the first power line and the second power line, based on power conversion characteristic information of the power electronics devices. The master device controls other power electronics devices except the master device out of the power electronics devices, regarding output of power to the third power line. | 03-20-2014 |
20140084686 | POWER CONVERTING APPARATUS AND NON-TRANSITORY COMPUTER READABLE MEDIUM - In one embodiment, there is provided a power converting apparatus that includes: a power receiver configured to receive a first power from a first apparatus; a power converter configured to convert the first power into a second power; a power output module configured to output the second power to the second apparatus; a communication module configured to receive a first identifier of a main controller, wherein the main controller belongs to a first group and the main controller is configured to send a first power output instruction to at least one of the apparatuses belonging to the first group; a conversion information storage module configured to store the first identifier; and a power conversion controller configured to cause the power converter to convert the first power into the second power, when the communication module receives the first power output instruction from the main controller. | 03-27-2014 |
20140091753 | GATEWAY APPARATUS, METHOD THEREOF AND CHARGE/DISCHARGE SYSTEM - A gateway apparatus includes a managing unit, an assigning unit, a receiving unit, a generating unit and a transmitting unit. The managing unit manages at least one storage battery group including a set of one or more storage battery systems selected from a plurality of storage battery systems. The assigning unit assigns a first storage battery group, which is one of the at least one storage battery group, to a first charge/discharge instruction apparatus. The receiving unit receives an instruction related to charge or discharge from the first charge/discharge instruction apparatus. The generating unit generates a first control order that is a control order for the storage battery systems belonging to the first storage battery group, based on the instruction. The transmitting unit transmits the first control order to the storage battery systems belonging to the first storage battery group. | 04-03-2014 |
20140139188 | CHARGE/DISCHARGE INSTRUCTION APPARATUS, CHARGE/DISCHARGE SYSTEM, CHARGE/DISCHARGE MANAGEMENT METHOD AND COMPUTER READABLE MEDIUM - According to one embodiment, there is provided a charge/discharge instruction apparatus including: a communicating unit, a communication frequency deciding unit, an information collecting unit and a charge/discharge managing unit. The communicating unit communicates with a battery storage system. The communication frequency deciding unit decides a collection frequency of Information related to the battery storage system according to a state of the battery storage system. The information collecting unit collects the information from the battery storage system at the collection frequency decided in the communication frequency deciding unit. The charge/discharge managing unit controls at least one of charge and discharge of the battery storage system based on the information collected in the information collecting unit. | 05-22-2014 |
20140184066 | Lighting Control System and Lamp - A lighting control system performs a lighting control on slave lamps under the control of a master lamp communicating with and connected to a management apparatus. The master lamp includes an adding unit that adds the slave lamps placed under the control of the other master lamp to the slave lamps under its own control, when the other master lamp fails. The master lamp includes a lighting control unit that performs the lighting control on the slave lamps, based on a command relating to the lighting control, which is received from the management apparatus. | 07-03-2014 |
20140288718 | POWER ELECTRONICS DEVICE, COMMUNICATION DEVICE, COOPERATIVE CONTROL METHOD AND COMPUTER READABLE MEDIUM - According to some embodiments, there is provided a power electronics device including: a controlling unit, a determining unit, a confirming unit and a determining unit. The controlling unit performs surveillance/control concerning an input/output of power to a power line with other power electronics devices connected via the power line. The determining unit determines a master device which is a subject of the surveillance/control and a slave device which is controlled by the master device, based on power characteristic information of the other power electronics devices from among the other power electronics devices and the power electronics device. The confirming unit confirms whether the master device and the slave device determined by the determining unit are matched with the master device and the slave device determined by the other power electronics devices. The determining unit permits a start of the surveillance/control when matching is determined by the confirming unit. | 09-25-2014 |
20140288719 | POWER ELECTRONICS DEVICE, POWER CONNECTION INSPECTION METHOD AND NON-TRANSITORY COMPUTER READABLE MEDIUM - According to one embodiment, there is provided a power electronics device including: a connection unit connected to a first power line; a communication unit; at least one unit of an electricity change unit and an electricity detection unit; and a control unit. The communication unit performs communication with other power electronics devices. The electricity change unit changes an energization state of the first power line and the electricity detection unit detects a change in the energization state of the first power line. The control unit specifies a power electronics device connected to the first power line out of the other power electronics devices using the communication unit and said at least one unit of the electricity change unit and the electricity detection unit. | 09-25-2014 |
Patent application number | Description | Published |
20090048817 | MOLECULAR STRUCTURE PREDICTION SYSTEM, METHOD, AND PROGRAM - A molecular structure prediction method for predicting the most stable molecular structure of a molecule based on results obtained by a plurality of appraisal systems includes steps of: generating a plurality of data sets by re-sampling from a training data set, determining a parameter set for each data set that has been generated to obtain a plurality of parameter sets, using the plurality of parameter sets to calculate energy of a molecule for molecular data for prediction, taking a consensus based on the results of a plurality of energies or three-dimensional structures, and predicting the most stable molecular structure based on the results of consensus. | 02-19-2009 |
20090259607 | SYSTEM, METHOD, AND PROGRAM FOR EVALUATING PERFORMANCE OF INTERMOLECULAR INTERACTION PREDICTING APPARATUS - The present invention provides a system, method, and program for evaluating the performance of an intermolecular interaction predicting apparatus. A performance evaluation system evaluates the performance of an intermolecular interaction predicting apparatus using a correlation between structure factors and physicochemical parameters of classification model construction compounds with high and low scores calculated by the intermolecular interaction predicting apparatus. | 10-15-2009 |
20090319450 | PROTEIN SEARCH METHOD AND DEVICE - A protein search method for searching for, as a target protein, a protein having direct or indirect relevance to information based on protein representation profiling data acquired by means of proteome analysis includes: determining, as a target protein, a protein that is relevant to the information based on significance of proteins obtained by using supervised learning from the information and the protein representation in the profiling data; and evaluating the performance of the target protein by means of evaluation data. | 12-24-2009 |
20090327176 | SYSTEM AND METHOD FOR LEARNING - A method of learning discriminant function for predicting label information by using computer includes: receiving training data including attribute data and label information, to create an initial prediction model based on the attribute data and the label information; calculating, based on the initial prediction model used as a discriminant function, a gradient of a loss function, which is differentiable with respect to the discriminant function and satisfies a monotonous convex function, from the discriminant function and the label information; creating a prediction model from the attribute data and the gradient while assuming that the gradient is label information of each sample of the training data; and updating the discriminant function based on the created prediction model. | 12-31-2009 |
20110238396 | MOLECULAR STRUCTURE PREDICTION SYSTEM, METHOD, AND PROGRAM - A molecular structure prediction method for predicting the most stable molecular structure of a molecule based on results obtained by a plurality of appraisal systems includes steps of: generating a plurality of data sets by re-sampling from a training data set, determining a parameter set for each data set that has been generated to obtain a plurality of parameter sets, using the plurality of parameter sets to calculate energy of a molecule for molecular data for prediction, taking a consensus based on the results of a plurality of energies or three-dimensional structures, and predicting the most stable molecular structure based on the results of consensus. | 09-29-2011 |
Patent application number | Description | Published |
20090095383 | Fine grain surface layer steel part and method of production of same - The present invention provides a fine grain surface layer steel part having a high proof strength ratio equal to or higher than that of conventional quenched and tempered materials, that is, a fine grain surface layer steel part containing, by mass %, C: 0.45% to 0.70%, Nb: 0.01% to 0.60%, Si: 0.10% to 1.50%, Mn: 0.40% to 2.0%, P: 0.10% or less, S: 0.001% to 0.15%, and N: 0.003% to 0.025% and having a balance of Fe and unavoidable impurities, where the surface layer and inside at all or part of the part have structures of different average particle sizes of ferrite crystal grains surrounded by high angle grain boundaries of a misorientation angle of 15 degrees or more and a method of production of that part comprising warm forging locations where strength is required to a predetermined shape at 1000° C. to 800° C. during which working so as to give an equivalent strain of 1.5 or more. | 04-16-2009 |
20100143180 | HOT-FORGING MICRO-ALLOYED STEEL AND HOT-ROLLED STEEL EXCELLENT IN FRACTURE-SPLITABILITY AND MECHINABILITY, AND COMPONENT MADE OF HOT-FORGED MICROALLOYED STEEL - The invention provides a hot-forging micro-alloyed steel and a hot-rolled steel which achieve excellent fracture-splitability and machinability, without impairing productivity or mechanical properties and without addition of Pb or the like. It also provides a component made of hot-forged micro-alloyed steel. | 06-10-2010 |
20100183473 | MARTENSITE TYPE HOT FORGING USE NON HEAT-TREATED STEEL AND HOT FORGED NON HEAT-TREATED STEEL PART - The present invention provides hot forging use non heat-treated steel where controlled cooling after shaping by hot forging is used to make the main structure of the steel martensite even without subsequent reheating and heat treatment by quenching and tempering and thereby give a steel part with a high strength and high toughness and superior machineability and a hot forged non heat-treated steel part made of that steel, in particular provides a martensite type hot forging use non heat-treated steel characterized by containing, by mass %, C: 0.10 to 0.20%, Si: 0.10 to 0.50%, Mn: 1.0 to 3.0%, P: 0.001 to 0.1%, S: 0.005 to 0.8%, Cr: 0.10 to 1.50%, Al: over 0.1 to 0.20%, and N: 0.0020 to 0.0080% and having a balance of substantially Fe and unavoidable impurities and a hot forged non heat-treated steel part made of such steel and characterized in that the steel structure of the entire cross-section at part or all of that part is substantially a martensite structure with an effective crystal grain size of 15 μm or less. | 07-22-2010 |
20110163512 | STEERING TIE ROD END MADE OF STEEL AND METHOD OF MANUFACTURING THE SAME - A steel tie rod end includes a shaft portion and first and second fitting portions. A minimum area portion having a small radially cross-sectional area is provided for the shaft portion, and 90% or above of a steel structure of the minimum area portion is formed of martensite or tempered martensite. The surface hardness of the minimum area portion and the average hardness of the radial cross section of the minimum area portion are 600 Hv or below, and the average hardness of the radial cross section of the first fitting portion and the average hardness of the radial cross section of the second fitting portion are 300 Hv or below. A method of manufacturing a steel tie rod end includes a quenching process of heating only a prospective shaft portion by high frequency to an austenitizing temperature and then rapidly cooling the prospective shaft portion by water or cooling medium. | 07-07-2011 |
20130167986 | STEEL PART FOR MACHINE STRUCTURAL USE AND MANUFACTURING METHOD THEREOF - The present invention provides a steel part for machine structural use whose fatigue strength and toughness are improved and a manufacturing method thereof. A steel part made of a steel containing, in mass %, C: 0.05 to 0.20%, Si: 0.10 to 1.00%, Mn: 0.75 to 3.00%, P: 0.001 to 0.050%, S: 0.001 to 0.200%, V: exceeding 0.25 to 0.50%, Cr: 0.01 to 1.00%, Al: 0.001 to 0.500%, and N: 0.0080 to 0.0200%, and a balance being composed of Fe and inevitable impurities, in which a steel structure contains a bainite structure having an area ratio of 95% or more, a bainite lath width is 5 μm or less, V carbide having an average grain diameter of not less than 4 nm nor more than 7 nm dispersedly exists in the bainite structure, and an area ratio of V carbide in the bainite structure is 0.18% or more. | 07-04-2013 |
20130186528 | STEEL PART FOR MACHINE STRUCTURAL USE AND MANUFACTURING METHOD THEREOF - The present invention provides a steel part for machine structural use whose fatigue strength and toughness are improved and a manufacturing method thereof. A steel part made of a steel containing, in mass %, C: 0.05 to 0.20%, Si: 0.10 to 1.00%, Mn: 0.75 to 3.00%, P: 0.001 to 0.050%, S: 0.001 to 0.200%, V: 0.05 to 0.20%, Cr: 0.01 to 1.00%, Al: 0.001 to 0.500%, and N: 0.0080 to 0.0200%, and a balance being composed of Fe and inevitable impurities, in which a steel structure contains a bainite structure having an area ratio of 95% or more, a bainite lath width is 5 μm or less, V carbide having an average grain diameter of not less than 4 nm nor more than 7 nm dispersedly exists in the bainite structure, and an area ratio of V carbide in the bainite structure is 0.18% or more. | 07-25-2013 |
20130186529 | STEEL PART FOR MACHINE STRUCTURAL USE AND MANUFACTURING METHOD THEREOF - The present invention provides a steel part for machine structural use whose fatigue strength and toughness are improved and a manufacturing method thereof. A steel part made of a steel containing, in mass %, C: 0.05 to 0.20%, Si: 0.10 to 1.00%, Mn: 0.75 to 3.00%, P: 0.001 to 0.050%, S: 0.001 to 0.200%, V: exceeding 0.20 to 0.25%, Cr: 0.01 to 1.00%, Al: 0.001 to 0.500%, and N: 0.0080 to 0.0200%, and a balance being composed of Fe and inevitable impurities, in which a steel structure contains a bainite structure having an area ratio of 95% or more, a bainite lath width is 5 μm or less, V carbide having an average grain diameter of not less than 4 nm nor more than 7 nm dispersedly exists in the bainite structure, and an area ratio of V carbide in the bainite structure is 0.18% or more. | 07-25-2013 |
20140219858 | HOT-FORGING MICRO-ALLOYED STEEL AND HOT-ROLLED STEEL EXCELLENT IN FRACTURE-SPLITABILITY AND MACHINABILITY, AND COMPONENT MADE OF HOT-FORGED MICROALLOYED STEEL - The invention provides a hot-forging micro-alloyed steel and a hot-rolled steel which achieve excellent fracture-splitability and machinability, without impairing productivity or mechanical properties and without addition of Pb or the like. It also provides a component made of hot-forged micro-alloyed steel. | 08-07-2014 |
Patent application number | Description | Published |
20090133800 | STEREOLITHOGRAPHY METHOD - A stereolithography method capable of accurately forming a three-dimensional model with a desired shape. In the stereolithography method, liquid photocurable resin is selectively exposed to light to form a cured resin layer and cured resin layers are sequentially laminated to form a three-dimensional model. The light exposure is performed on projection regions with an arbitrary area of, for example, 100 mm | 05-28-2009 |
20090243156 | METHOD OF PHOTOFABRICATION - An object of the present invention is to provide an optical molding method that is capable of taking out the model shape of an optically-molded object with high accuracy, and capable of performing molding with high accuracy even when a shape having a fine structure or a microstructure is molded. An optical molding method to form a three-dimension shape object in which cured resin layers are laminated and integrated includes forming a cured resin layer of a photo-curable composition by irradiating a photo-curable composition layer with light, forming the photo-curable composition layer again above the cured resin layer, forming further a cured resin layer of the photo-curable composition by radiating a light, and repeating these steps, wherein the photo-curable composition layer is formed by applying a photo-curable resin composition containing resin, an ethylenic unsaturated compound, and an organic solvent above a base material or above the cured resin layer formed above the base material, and removing the organic solvent contained in the photo-curable resin composition, and wherein the three-dimension shape object is formed by removing the photo-curable composition that is not cured in the cured resin layers after the formation of all the cured resin layers is completed. | 10-01-2009 |
20090250835 | METHOD FOR MANUFACTURING MOLDING DIE AND METHOD FOR MANUFACTURING MOLDED PRODUCT - An object of the present invention is to provide a metal mold for micro components at low cost in a short time by using an optically molded object formed by an optical molding method. A method of manufacturing a mold for molding in accordance with the present invention includes forming a three-dimensional molded object by applying a photo-curable liquid resin composition, irradiating the photo-curable liquid resin composition with light, and removing non-cured portions of the photo-curable liquid resin composition, and forming the mold for molding based on the three-dimensional molded object, the method further including forming a metal coating covering the three-dimensional molded object, removing the three-dimensional molded object covered with the metal coating; and taking the metal coating as the mold for molding. | 10-08-2009 |
20090261512 | STEREOLITHOGRAPHY APPARATUS AND STEREOLITHOGRAPHY METHOD - A stereolithography apparatus that forms a three-dimensional model by sequentially laminating cured resin layers through repetition of a cycle of selectively applying light to liquid photocurable resin to form a cured resin layer, further applying liquid photocurable resin on the cured resin layer, and applying light to form a cured resin layer. The apparatus includes a table, a dispenser to supply the liquid photocurable resin onto the table, a recoater to apply the photocurable resin, and a controller to slow down a moving speed of the recoater based on a moving distance of the recoater during application operation of the recoater. | 10-22-2009 |