Patent application number | Description | Published |
20090092517 | Copper Alloy Extruded Material and Its Manufacturing Method - A copper alloy extruded material is provided by extruding a copper alloy powder solidified billet and old grain boundaries remain in it. | 04-09-2009 |
20090148578 | AMORPHOUS SILICON POWDER AND ITS PRODUCTION METHOD - A production method of amorphous silicon oxide powder comprises a step of preparing a wood, agricultural crop or plant containing hexose and/or pentose and silicon oxide as a starting raw material, a step of hydrolyzing the starting raw material with nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid or organic acid to reduce a content of the hexose to 10% by weight or less and/or a content of the pentose to 20% by weight or less, and a step of burning residue yielded in the hydrolyzing step at a temperature of 400° C. to 1200° C. | 06-11-2009 |
20090263268 | Raw Magnesium Alloy Powder Material, Magnesium Alloy with High Proof Stress, Manufacturing Method of Raw Magnesium Alloy Powder Material and Manufacturing Method of Magnesium Alloy with High Proof Stress - A raw magnesium alloy powder material having a relatively small crystal grain diameter is obtained by subjecting a starting material powder having a relatively large crystal grain diameter to a plastic working in which the powder is passed through a pair of rolls to undergo compressive deformation or shear deformation. The starting material powder is a magnesium alloy powder having a fine intermetallic compound ( | 10-22-2009 |
20100024512 | High strenght workpiece material and method and apparatus for producing the same - A method for producing a high strength workpiece material includes the steps of: placing an alloy material | 02-04-2010 |
20100061910 | AMORPHOUS SILICA AND ITS MANUFACTURING METHOD - A production method of amorphous silica comprises a step of preparing organic waste containing silicon oxide as a starting material, a step of immersing the organic waste in a carboxylic acid aqueous solution having a hydroxyl group, a step of washing the organic waste in water, and a step of heating the organic waste in the air atmosphere. | 03-11-2010 |
20100166593 | PRODUCTION METHOD OF EXTRUSION BILLET AND PRODUCTION METHOD OF MAGNESIUM ALLOY MATERIAL - A production method of an extrusion billet includes a step of preparing a plate or lump starting material comprising a magnesium alloy, a step of performing a plastic deformation process at a rolling reduction of 70% or more to the starting material at a temperature of 250° C. or lower to introduce a strain without generating dynamic recrystallization, a step of producing powder by granulating the material after the plastic deformation process, and a step of producing a powder billet by compressing the powder. | 07-01-2010 |
20100226812 | HIGH-STRENGTH AND HIGH-TOUGHNESS MAGNESIUM BASED ALLOY, DRIVING SYSTEM PART USING THE SAME AND MANUFACTURING METHOD OF HIGH-STRENGTH AND HIGH-TOUGHNESS MAGNESIUM BASED ALLOY MATERIAL - A high-strength and high-toughness magnesium based alloy contains, by weight, 1 to 8% rare earth element and 1 to 6% calcium and the maximum crystal grain diameter of magnesium constituting a matrix is not more than 30 μm. At least one intermetallic compound ( | 09-09-2010 |
20100261028 | COMPOSITE METAL MATERIAL AND METHOD FOR PRODUCING THE SAME - A method for producing a composite metal material includes preparing a solution containing a surfactant having both hydrophilicity and hydrophobicity, dispersing a nanosized to micro-sized fine carbonaceous substance into a state of being monodispersed in the solution, bringing the solution having the dispersed fine carbonaceous substance into contact with surface of a metal powder particle, drying the metal powder particle to make the fine carbonaceous substance in the monodispersed state adhere to the surface of the metal powder particle via a component of the solution, and thermally decomposing and removing the solution component adhering to the surface of the metal powder particle by heat-treating the metal powder particle either in a hydrogen-containing reducing atmosphere or in a vacuum atmosphere to partially expose the surface of the metal powder particle out of the adhering fine carbonaceous substance, and thus progress diffusion and sintering among the metal powder particles through exposed parts. | 10-14-2010 |
20110056591 | BRASS ALLOY POWDER, BRASS ALLOY EXTRUDED MATERIAL, AND METHOD FOR PRODUCING THE BRASS ALLOY EXTRUDED MATERIAL - Brass alloy powder has a brass composition formed by a mixed phase of α-phase and β-phase, and contains 0.5 to 5.0 mass % of chromium. The chromium includes a component that is solid-solved in a mother phase of brass, and a component that is precipitated at crystal grain boundaries. | 03-10-2011 |
20110089272 | MANUFACTURING METHOD OF MAGNESIUM ALLOY MATERIAL - A method for manufacturing a magnesium alloy material includes the steps of: preparing a sheet or block of starting material that is made of a magnesium alloy; subjecting the starting material to a plastic working process at a temperature of 250° C. or less and a reduction ratio of 70% or more to introduce strain without causing dynamic recrystallization; pulverizing the material subjected to said plastic working process into powder; compressively deforming said powder by passing said powder between a pair of rotating rolls; and successively crushing the compressively deformed powder, which has passed between the pair of rotating rolls, into granular powder. | 04-21-2011 |
20110142710 | Ti PARTICLE-DISPERSED MAGNESIUM-BASED COMPOSITE MATERIAL, AND MANUFACTURING METHOD THEREOF - A Ti particle-dispersed magnesium-based composite material is a material having titanium particles uniformly dispersed in a magnesium matrix, and is characterized by having a titanium-aluminum compound layer at an interface between the magnesium alloy matrix and the titanium particles dispersed in the magnesium alloy matrix. | 06-16-2011 |
20110150694 | METHOD FOR MANUFACTURING Ti PARTICLE-DISPERSED MAGNESIUM-BASED COMPOSITE MATERIAL - A Ti particle-dispersed magnesium-based composite material is a material having titanium particles uniformly dispersed in a magnesium matrix. Magnesium that forms the matrix and titanium particles are bonded together,) with satisfactory wettability without titanium oxide at an interface therebetween. The Ti particle-dispersed magnesium-based composite material has a tensile strength of 230 MPa or more. | 06-23-2011 |
20120027638 | HIGH-STRENGTH COPPER ALLOY - A high-strength copper alloy contains 20 to 45% of zinc, 0.3 to 1.5% of iron, 0.3 to 1.5% of chromium, and a balance of copper, based on mass. | 02-02-2012 |