摘要:
A titanium alloy containing copper, which cannot be realized by a conventional method, is provided, having a composition in which copper is contained in titanium with no segregation, and having improved strength and hardness. In addition a method is also provided, in which the titanium alloy is produced at lower cost than in a conventional method. The α+β or β titanium alloy contains copper at 1 to 10 mass %, has a crystal phase of β and α phase or of β phase, is formed of crystal particles not more than 100 μm, and has a copper concentration per an arbitrary specified 1 mm3 portion of the crystal phase at within ±40% compared to another arbitrary specified portion. The α+β or β titanium alloy is produced by mixing 1 to 10 mass % of copper powder and the remainder of titanium alloy powder and then pressing and forming while being heated. The method for production of the α+β or β titanium alloy has a step of mixing 1 to 10 mass % of copper powder and the remainder of titanium alloy powder and a step of pressing and forming the mixture while being heated.
摘要:
Titanium alloy containing iron, that is, iron-containing titanium alloy having high strength and hardness in which iron in a composition which cannot be realized in a conventional method, is contained with no segregation, and is provided in lower cost. The α+β titanium alloy or β titanium alloy is produced by a forming process such as hot extrusion of titanium alloy powder containing 3 to 15 mass % of iron powder. The method for production of the α+β titanium alloy or β titanium alloy includes a step of mixing 3 to 15 mass % of iron powder and titanium alloy powder as the remainder, and a step of performing a forming process of hot extrusion on this powder mixture.
摘要:
Titanium alloy containing iron, that is, iron-containing titanium alloy having high strength and hardness in which iron in a composition which cannot be realized in a conventional method, is contained with no segregation, and is provided in lower cost. The α+β titanium alloy or β titanium alloy is produced by a forming process such as hot extrusion of titanium alloy powder containing 3 to 15 mass % of iron powder. The method for production of the α+β titanium alloy or β titanium alloy includes a step of mixing 3 to 15 mass % of iron powder and titanium alloy powder as the remainder, and a step of performing a forming process of hot extrusion on this powder mixture.
摘要:
Titanium alloy complex powder is yielded by hydrogenating titanium alloy raw material to generate hydrogenated titanium alloy, grinding and sifting it to obtain hydrogenated titanium alloy powder, adding ceramic powder selected from SiC, TiC, SiOx, TiOx (here, index x is a real number which is in 1≦x≦2) and Al2O3, and dehydrogenating the mixture of the hydrogenated titanium alloy powder and the ceramic powder. In addition, consolidated titanium alloy material is obtained by CIP process and subsequent HIP process to the titanium alloy complex powder or by HIP process after filling the titanium alloy complex powder into capsule.
摘要翻译:通过氢化钛合金原料生成氢化钛合金,研磨和筛分得到氢化钛合金粉末,加入选自SiC,TiC,SiOx,TiOx的陶瓷粉末,得到钛合金复合粉末(这里,折射率x为实数 其在1≦̸ x< 2; 2)和Al 2 O 3中,并使氢化钛合金粉末和陶瓷粉末的混合物脱氢。 此外,通过CIP工艺和随后的HIP工艺,通过钛合金复合粉末或通过HIP工艺将钛合金复合粉末填充到胶囊中后获得固结的钛合金材料。
摘要:
A process for production of titanium alloy material has steps of hydrogenating titanium alloy material to generate hydrogenated titanium alloy; grinding, sifting and dehydrogenating the hydrogenated titanium alloy powder to generate titanium alloy powder; adding at least one of copper powder, chromium powder or iron powder to obtain titanium alloy complex powder; consolidating the titanium alloy complex powder by CIP process and subsequent HIP process, or by HIP process after filling the titanium alloy complex powder into a capsule. In addition, titanium alloy complex powder and titanium alloy material produced by the process are provided.
摘要:
The fit of a garment is improved. An upper garment, which is a piece of clothing, has a sleeve portion, which is provided with a vertical seam line in the longitudinal direction and a horizontal seam line that extends to the vertical seam line from both directions with respect to the circumferential direction. The horizontal seam line has ends, which are located at different positions on the vertical seam line.
摘要:
A process for production of metallic powder comprising contacting a metallic chloride gas with a reductive gas in a temperature range for a reducing reaction to form a metallic powder and subsequently contacting the metallic powder with an inert gas such as nitrogen gas to cool the powder, wherein the rate of cooling is 30° C. or more for temperatures from the temperature range for the reducing reaction to a temperature of 800°C. or less. The metallic powder is rapidly cooled, which results in suppression of agglomeration of particles in the metallic powder and the growth of secondary particles. Growth of particles of a metallic powder formed in a reduction process into secondary particles through agglomeration after the reduction process is suppressed, and a ultrafine metallic powder having a particle diameter of, for example, 1&mgr;m or less, can be reliably produced.
摘要:
The present invention provides a metallic powder which exhibits superior sintering properties in a production of multilayer ceramic capacitors, and exhibits superior dispersion characteristics in forming of conductive pastes, thereby preventing delamination. Metallic powder produced by bringing a metallic chloride gas into contact with a reducing gas in a reducing temperature range is subjected to a surface treatment by a nonionic surfactant in a wet or dry process to obtain final metallic powder.
摘要:
The present invention provide metallic nickel powder in which the occurrence of delaminatoin can be prevented by providing superior sintering propreties in production processes for multilayer ceramic capacitors and by providind superior dispersion characteristics in the forming of conductive pastes. By being brought into contact with nickel chloride gas and a reducing gas at a temperature in the range of the reduction reaction, metallic nickel power is node gas and a reducing gas at a produced in which the oxigen content is 0.1 to 2.0% by weight and there is not absortion peak at wavelengths ranging from 3600 to 3700 cm−1 in infrared spectroscopy.
摘要:
In a process for production of ultrafine nickel powder, raw material gas having a partial pressure of nickel chloride vapor within a range from 0.2 to 0.7 is fed into a reducing furnace and the nickel chloride vapor is reduced with hydrogen while flowing the raw material gas in this reducing furnace at a space velocity (SV) within a range from 0.02 to 0.07 sec−1.