摘要:
A process for producing a sintered ceramic wire, particularly a superconducting wire, by the steps of filling a metal pipe with a material powder of ceramic, wire drawing the metal pipe filled with the material powder by means of roller dies and then subjecting a composite of the metal pipe and the material powder to a heating operation to sinter the ceramic powder.
摘要:
Method for producing an elongated sintered article, characterized by the steps including filling powder material in a pipe, carrying out plastic deformation of the pipe filled with the powder material, and heating the pipe filled with the powder material to burn and/or sinter the powder material.The method of the present invention is advantageously applicable to production of wire or rod of ceramics, particularly so called new ceramics or fine ceramics, sintered alloys or their combination, which are difficult of shaping or moulding by conventional process such as wire-drawing, rolling or extrusion or powder material and are difficult of machining or processing after the powder material is sintered.
摘要:
An oil-tempered wire that has high fatigue strength and toughness after the nitriding treatment, and a method of producing the same, and a spring using the oil-tempered wire are provided. The oil-tempered wire has a tempered martensite structure. A lattice constant of a nitride layer formed on a surface of the wire is 2.870 Å to 2.890 Å when the oil-tempered wire is nitrided. The oil-tempered wire is produced by wire drawing a steel wire and quenching and tempering the wire drawn steel wire. The quenching is performed after the radiation heating is performed at 850 to 950° C. for over 30 sec to 150 sec, and the tempering is performed at 400 to 600° C.
摘要:
A wire-harness use composite wire comprising a first element wire which comprises 0.01-0.25 mass % C, 0.01-0.25 mass % N, 0.5-4.0 mass % Mn, 16-20 mass % Cr,8.0-14.0 mass % Ni, and the balance of Fe and impurities and satisfies that a C+N content is in the range of 0.15 mass %≦C+N≦0.30 mass %, and a second element wire comprising at least one material selected from the group consisting of copper, copper alloy, aluminum, and aluminum alloy, the first element wire and the second element wire being twisted together.
摘要翻译:一种线束用复合线,其包括第一元素线,其包含0.01-0.25质量%的C,0.01-0.25质量%的N,0.5-4.0质量%的Mn,16-20质量%的Cr,8.0-14.0质量%的Ni和 Fe和杂质的余量,并且满足C + N含量在0.15质量%<= C + N <= 0.30质量%的范围内,并且第二元素线包括选自由铜组成的组中的至少一种材料 铜合金,铝和铝合金,将第一元件线和第二元件线绞合在一起。
摘要:
[Object] To provide a wire-harness use composite wire having a further improved corrosion resistance, while having excellent conductivity and strength. [Solving means] A wire-harness use composite wire comprising a first element wire which comprises 0.01-0.25 mass % C, 0.01-0.25 mass % N, 0.5-4.0 mass % Mn, 16-20 mass % Cr, 8.0-14.0 mass % Ni, and the balance of Fe and impurities and satisfies that a C+N content is in the range of 0.15 mass %≦C+N≦0.30 mass %, and a second element wire comprising at least one material selected from the group consisting of copper, copper alloy, aluminum, and aluminum alloy, the first element wire and the second element wire being twisted together.
摘要翻译:提供具有进一步改善的耐腐蚀性的线束使用复合线,同时具有优异的导电性和强度。 [解决方案]一种线束用复合线,其包括第一元素线,其包含0.01-0.25质量%的C,0.01-0.25质量%的N,0.5-4.0质量%的Mn,16-20质量%的Cr,8.0-14.0质量% %Ni,余量为Fe和杂质,并且满足C + N含量在0.15质量%<= C + N <= 0.30质量%的范围内,并且第二元素丝包括至少一种选自 由铜,铜合金,铝和铝合金组成的组,第一元件线和第二元素线被扭曲在一起。
摘要:
A steel wire of pearlite structure containing 0.8-1.0 mass % of C and 0.8-1.5 mass % of Si is disclosed. In the cross section of the steel wire the difference in average hardness between a region up to 100 μm from the surface thereof and a deeper region is within 50 in micro-Vickers hardness. The steel wire is manufactured by working a wire rod having the abovementioned chemical composition through shaving, patenting and drawing processes, then strain-relief annealing the resultant wire, and thereafter subjecting the thus annealed to a shot peening process. The steel wire has a high heat resistance and a high fatigue strength, and can be produced through a drawing process without applying a quenching and tempering process.
摘要:
A superconducting composite comprising a compound oxide type superconductor and an outer metal pipe on which said superconductor is supported, characterized in that (i) said outer metal pipe is made of at least one of metals selected from a group comprising gold, silver and platinum metals and their alloys or (ii) an intermediate layer made of these precious metals is interposed between the compound oxide and the metal pipe. The composite may be in a form of a solid pipe or a hollow pipe having a superconducting thin layer deposited on an inner surface of the metal pipe.
摘要:
A process for manufacturing a superconducting elongated article such as a superconducting wire which is applicable for manufacturing a superconducting coil or the like. The process includes steps comprising filling a metal pipe with material powder of ceramic consisting of compound oxide having superconductivity, performing plastic deformation of the metal pipe filled with the ceramic metal powder to reduce the cross section of the metal pipe, and then subjecting the deformed metal pipe to heat-treatment to sinter the ceramic material powder filled in the metal pipe. The ceramic material powder may contain compound oxide having Perovskite-type crystal structure exhibiting superconductivity.The metal pipe may selected from a group comprising metals of Ag, Au, Pt, Pd, Rh, Ir, Ru, Os, Cu, Al, Fe, Ni, Cr, Ti, Mo, W and Ta and alloys including these metals as the base. The heat-treatment may be carried out at a temperature ranging from 700 to 1,000.degree. C., The plastic deformation of the metal pipe filled with the ceramic metal powder may be performed in such manner that the cross section of the metal pipe is reduced at a dimensional reduction ratio ranging from 16% to 92% by wire-drawing or forging by means of dies, roller dies, or extruder.
摘要:
Improvement in a process for producing a sintered elongated article by the steps comprising filling a metal pipe with a material powder, carrying out plastic deformation of the metal pipe and then subjecting the material powder in deformed metal pipe to sintering. In the invention, the step of the plastic deformation includes at least one deformation satge carried out under a hot condition.
摘要:
Method for producing an elongated sintered article, characterized by the steps including filling powder material in a pipe, carrying out plastic deformation of the pipe filled with the powder material, and heating the pipe filled with the powder material to burn and/or sinter the powder material.The method of the present invention is advantageously applicable to production of wire or rod of ceramics, particularly so called new ceramics or fine ceramics, sintered alloys or their combination, which are difficult to shape or mold by conventional process such as wire-drawing, rolling or extrusion of powder material which is difficult to mold and machine after the powder material is sintered.