查询词典 powder metallurgy

Recent progress and achievements of tungsten metallurgy in China including the exploitation of process technique in treating various resource, molybdenum separation technology from tungsten, production of high pure APT from low grade material and tungstenic scrape, process equipment and automatization degree in tungsten metallurgical plant, application of membrane technology in non pollution tungsten metallurgical process, and ultrafine powder of tungsten etc.

综述了近年来我国钨冶炼在开发处理多种资源的工艺技术、钨钼分离技术、从低品位钨矿物原料和含钨废料中生产高纯APT、钨冶炼技术装备和自动化水平、膜分离技术在开发无污染钨冶炼工艺的应用、超细钨粉等方面的最新进展和成果。

Due to the unorderly microstructure and the tin oxide assemble in matrix, the electric conductivity of composite fabricated by powder metallurgy became lower than that composite fabricated by reactive synthesis.

粉末冶金法制备的材料由于其杂乱的组织结构以及氧化锡的团聚而使材料的导电性较差。

At the same time run the powder metallurgy machinery industry \ Bimetal bearings and bushings for sale.

同时兼营机械行业的粉末冶金制品＼轴承及双金属复合衬套销售。

Using modified conventional powder metallurgy process for sintered Nd-Fe-B magnets , including annealing of ingot alloy, hydrogen decrepitating, modified jet mill and adding additive during jet milling, we have mass-produced high performance and high corrosion resistance sintered Nd-Fe-B magnets from a conventional ingot alloy without strict protections against oxidation.

利用改进的传统粉末冶金工艺(铸锭热处理、氢爆、改进型气流磨设备以及在气流磨中掺入添加剂等)，在无严格的防氧保护情况下，从传统合金铸锭出发，工业化生产出具有高耐蚀性的N48～50档烧结Nd-Fe-B 磁体。

The hardness of HSS roll was over 66 HRC, the depth of hardened layer excesses 30 mm, the variation of hardness in the roll surface was smaller than 1.5 HRC, and the wear resistance of HSS roll was better than that of high chromium cast iron roll and high nickel chromium indefinite hilled cast iron roll, close to that of powder metallurgy hard alloy roll.

研制出的高速钢轧辊硬度超过66HRC，淬硬层深度超过30mm，辊面硬度差小于1.5HRC，耐磨性优于高铬铸铁和高镍铬无限冷硬铸铁轧辊，接近硬质合金轧辊。

Al-Ti, Al-Fe, Al-SiCp(130nm), Al-SiCp(14 m) composites are performed with cold-press sintering plus hot extrusion powder metallurgy technique in this article, microstructure, hardness, extensibility behavior and traction-wear behavior are studied ,some innovative outcome is got.

本文采用&冷压烧结+热挤压&的粉末冶金方法制备出Al-Ti、Al-Fe、Al-SiCp(130nm)、Al-SiCp(14μm)复合材料，研究了显微组织、致密度、硬度、抗拉行为以及耐磨行为，取得了一些创新成果。

The microstructure and properties of copper-graphite and Cu/Copper-coated graphite composites have been compared to those prepared by powder metallurgy.

比较了用粉末冶金法制备的铜-镀铜石墨复合材料的显微组织与部分性能。

Powder metallurgy ; Cu/Copper-coated graphite composite ; structure and properties

粉末冶金；铜-镀铜石墨复合材料；组织与性能

The copper-coated graphite/silver matrix composites have been made by the method of powder metallurgy. The properties of the composites, such as volume density, resistivity, hardness, bending strength and tribological behavior were tested, and comparison was made with silver-graphite composite of the same content graphite.

将镀铜石墨粉与银粉用粉末冶金法制备成镀铜石墨－银基复合材料，对其密度、电阻率、硬度、抗弯强度和摩擦磨损性能进行测试，并与相同石墨含量的银－石墨复合材料进行对比。

At present diamond tools based on metal cement is manufactured by powder metallurgy.

金属结合剂金刚石工具的制造方法主要是粉末冶金孕镶法。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48