baoyu135国产精品免费_成人精品视频一级毛片_亚洲中字无码A∨电影在线观看_国产免费高潮白浆二区三区_免费视频在线观看高清无码_精品无码久久国产2024_亚洲AV无码专区牛牛影院_精品第一国产综合精品aⅴ_午夜大片爽爽爽免费影院_日本在线高清视频

Pure tungsten powder is a kind of tungsten powder with high purity. It has strict requirements on impurity content, and can be made into silk, rod, tube, plate and other processed materials and certain shape products. Arsenic and tin is a trace impurity elements in pure tungsten powder, its content is a control index for tungsten powder purity, using graphite furnace atomic absorption spectrometry, sensitivity, good accuracy, quick and easy.In order to control the impurity elements in pure tungsten powder,…

Tungsten metal powder is a kind of tungsten powder with high purity, good fluidity, coarse particle size and low oxygen content. Raw material of production The main raw material of tungsten metal powder is the blue tungsten or yellow tungsten, single blue tungsten compared with yellow tungsten has particle morphology, complex, large specific surface area, easy to restore and easy control of powder particle size, etc. And it has good chemical activity, and has the ability to exchange ions rapidly…

Coarse tungsten powder is a coarse-grained tungsten powder compared with other grain size. It is a raw material of crude tungsten carbide, with a purity greater than 99.9%. Application The coarse tungsten powder with uniform grain size is the raw material for producing coarse tungsten carbide. The more coarse the tungsten carbide particles are, the more coarse the coarse tungsten powder should be. Tungsten carbide particle size first determine the size of coarse tungsten powder, the temperature and other conditions…

Tungsten powder is pure tungsten in powder, and usually used as material for tungsten product. Property Tungsten powder is apparent black powder, cubic crystal, polygon particle shape. Its melting point is 3400 ℃, boiling point is 5555 ℃. The regular granularity is 2~10um. In addition to impurity content of the tungsten powder has certain requirements, the oxygen content to be controlled within a certain range. The performance of tungsten powder has a direct impact on the production of tungsten materials…

High purity tungsten powder is a kind of tungsten powder with a purity of at least 99.99%, which can be used in special high-temperature devices, large scale integrated circuits, and semiconductor transistors. Chemical Composition The contents of tungsten elements can be 99.99%~99.999%, and the total content of all impurity elements should be controlled between (0.1 ~ 1000) x 10-12. Products High purity tungsten bar, tungsten rod, tungsten electrode, tungsten wire, high purity tungsten flake, tungsten plate, pure tungsten and tungsten…

High activity nanometer tungsten powder is nanometer tungsten powder with high purity, high hardness, high proportion and good fluidity. It is commonly used in powder metallurgy and high temperature resin, or as shielding material. Specification Common Specifications: 200 mesh, 300 mesh, 400 mesh; Fess: 3.5~2.6μm, 2.5μm, 1.5μm; The particle size suitable for spraying : 150~300 mesh, 200~400 mesh, and so on. Application High activity nanometer tungsten powder can be used raw material additive of high performance high proportion alloy powder…

Nanometer tungsten powder is a nano-sized tungsten powder, which is an indispensable dingal material in many high-tech fields. Property Nanometer tungsten powder has uniform particles, highly active, larger specific surface area, and can be controlled under 1% after passivation. Application Nanometer tungsten powder has been widely used in aerospace alloys, electronic packaging alloys, electrode materials, microelectronic films, sintering additives, protective coatings, gas sensor electrodes and so on. It has become indispensable to many high-tech fields of dingal materials , is…

Ultrafine tungsten powder has characteristics significantly of high density, high temperature resistant, high hardness, is the important raw materials in a variety of important dingal materials and structural materials, is indispensable high-tech materials of many fields. Characteristic Ultrafine tungsten powder has high density, high temperature resistant, high hardness. Preparation method Preparation methods of ultrafine tungsten powder has a dry atmosphere reduction method, tungsten trioxide circulation oxidation – reduction method, hydrogen reduction of purple tungsten hydrogen reduction method, halogenate tungsten method,…

Fine tungsten powder is a relatively small amount of tungsten powder, has high quality and high purity, is mainly used as the raw material for tungsten contact, high gravity tungsten alloy and tungsten bar. Appearance The appearance is light gray or dark gray, uniform color and appearance. Purity The purity of fine tungsten powder can reach above 99.95%, impurity content is very few. Granularity Its granularity is uniform, and no clamping or pinching phenomenon occurs. Application Fine tungsten powde is…

High-purity tungsten powder has the purity of at least 99.99%, with chemical purity from 99.99%~99.9999%; the content of impurity elements in it should be among (0.1～1000)×10-12, however, as for the some special elements like radioactive, alkali metal, heavy metals and gas elements ect., their content of will be special required respectively. The products of high-purity tungsten powder are high purity tungsten bar, rod, electrode, wire, sheet, plate, and pure tungsten and titanium tungsten sputter targets material ect.. Preparation of High-purity…