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Application of Molybdenum in Medicine Field – Molybdenum Target 275

Molybdenum (Mo) and molybdenum alloy materials have wide applications?in the manufacturing industry, aerospace industry, steel smelting, petrochemical industry, medical devices, national defense construction and other industrial fields.?In?the field of medicine,?the most widely known and closely relevant to our lives is molybdenum target. Mammography is to take pictures of breast tissue to achieve the purpose of diagnosis by using soft X-ray, the structure mainly includes X-ray tube, high-voltage generator, rack/mechanism, compression plate, image processing device(or cassette), puncture biopsy system, image post-processing…

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The use of High Purity Molybdenum Sputtering Target in Liquid Crystal Display 493

With the development of science and technology, molybdenum shows its advantages in many fields, which has changed human life in various aspects, one of the familiar applications is to manufacture?liquid crystal display. Large-size high purity molybdenum sputtering target is the key raw material in the producing of LCD panel, and Mo is one of the preferred materials for sputtering target of LCD panel. This kind of target is used in the daily color TV, intelligent phone, tablet computer and some…

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Common Preparation Methods of Molybdenum Powder 517

Molybdenum?powder prepared by traditional technology is often used to be raw material of molybdenum sintered products, the common preparation methods include reduction method, fluidized bed reduction method, hydroxyl thermal decomposition method etc. 1.0 Reduction method 1.1 Ammonium molybdate roasting→two-stage reduction. This method is the main method used in industrial production, the purity of Mo powder produced is high, the particle size is usually in micron level. 1.2 Ammonium molybdate two-stage reduction method. Without calcination, ammonium molybdate is directly reduced once…

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Preparation of Large-size Tungsten-Based Heavy Alloy 251

Large-size tungsten-based heavy alloy has a series of advantages including?high density, low coefficient of thermal expansion, good oxidation resistance and corrosion resistance,?etc.?In fields of aerospace, electronic information and so on, large-size and high performance tungsten-based heavy alloy is in urgent need. Find the rule of?internal structure of large-size tungsten based high specific gravity alloy?during liquid phase sintering process?to obtain?high homogeneity, high performance and parts of large-size tungsten based high specific gravity alloy. After analyzing the composition, sintering process, material property,…

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Metal Injection Molding of High Density Tungsten Alloy 282

The cost of traditional high?density?tungsten?alloy is high, as 3C industry begins to use small-size high density W-alloy part?as counterweight material,?higher requirement is?put forward for the forming technology of high density W-alloy. Therefore metal powder injection molding (MIM)?technology appears, it?is a new near net forming technology for part, which combines plastic injection molding technology with powder metallurgy technology, it can?effectively promote the wide use of high density W-alloy materials in 3C and other high-tech industries. The metal injection molding of high…

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Fracture Failure of High Density Tungsten Alloy 247

High density tungsten alloy has excellent mechanical property, anti burning property and absorption ability to radiation. Therefore, it is used in explosive parts such as armor piercing bomb. Normally, the part should keep well after impacted by the front end explosion, but in the test, the component breaks without external force. In order to?make analysis of the failed component’s fracture failure, the fractured explosive component?and different batch of standard components meeting the requirements?are?compared and analyzed to confirm?the failure reason of…

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Ammonium Metatungstate for Petroleum Catalyst 194

Ammonium metatungstate is the main raw material of tungsten-based catalyst, which can greatly improve the catalytic performance of the prepared product. In recent years, with the development of petroleum refining and petrochemical industries, the amount of tungsten compounds has also increased. Ammonium metatungstate is an inorganic compound with a chemical formula of H28N6O41W12, a molecular weight of 2974.32, with white or light yellow color, the purity is up to 99.95%, and main content of WO3 is up to 83.0%. It…

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How to Prepare Ammonium Metatungstate from Waste Tungsten Oxide? 198

In the existing technology, using waste tungsten oxide (WO3) as a raw material, only low value-added ammonium paratungstate (APT) can be obtained, and high value-added ammonium metatungstate (AMT) products cannot be obtained. Moreover, WO3 waste ammonia after leaching, APT is needed to crystallize, so a crystallization reactor is necessary, and the investment in crystallization reactor equipment is relatively large, resulting in higher production costs and poor economic benefits, and the recovery rate of WO3 waste is low. Therefore, it is…

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Cesium Doped Tungsten Oxide for Heat Insulation Film 211

As a new type of transition metal compound material, cesium doped tungsten oxide nano particles have excellent near-infrared absorption performance and visible light transmission performance, and are often used to prepare high-quality transparent heat insulation film. Its application range is wide. The heat insulation film is to achieve the effect of heat insulation and energy saving by means of heat insulation materials. Traditional thermal insulation materials include glass fiber, asbestos, rock wool, silicate, etc., while new thermal insulation materials include…

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Cesium Doped Tungsten Oxide Powder for Thermal Insulation Glass 198

Compared with single component tungsten oxide powder, the optical performance of cesium doped tungsten oxide powder is more superior, that is, the absorption ability of infrared rays is stronger, and the transmittance of visible light is higher. It has wide application range in block of near infrared light and thermal insulation glass. How to prepare cesium doped tungsten oxide nano powder with reasonable cost and high product stability? (1) Dissolve the raw material tungsten salt and cesium salt in a…

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