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Molybdenum
Applications of Molybdenum Disulfide 2,462

Molybdenum disulfide(MoS2) is a kind of solid powder which is made from natural molybdenum concentrate powder by chemical purification and changing its molecular structure. It is black with slight silver gray, metallic luster, slippery to the touch, and insoluble in water. Molybdenum disulfide has many applications, the following is details: 1.0 MoS2 is an important solid lubricant, especially suitable for high temperature and high pressure. It is diamagnetic, can be used as linear photoconductor and semiconductor showing p-type or n-type…

Molybdenum
Preparation Methods of the Molybdenum Disulfide 907

Molybdenum disulfide (MoS2) is a type of transition metal sulfide with glossy lead gray solid powder. It is synthesized and appears black, which has stable chemical property. There are many preparation methods of MoS2, details are as follows: 1.0 Mechanical peeling method The mechanical peeling method is widely used to prepare ultra-thin two-dimensional materials. Up to now, mechanical exfoliation is the simplest way to produce the cleanest, highly crystalline and atomically thin nanosheet layered material. However, this method is inefficient…

Tungsten
Ultra-fine Integrated Circuit Board Micro Drill Made by Ultra-fine Grained Cemented Carbide 719

Integrated circuit board (PCB) is the key component of electronic information industry chain, as a key tool of PCB micro hole processing and printing, ultra-fine integrated circuit board micro drillcan only be made by ultra-fine grained cemented carbide. In the past, China could only produce micro drill with the diameter of 0.1 mm. After ten years we w canproduce ultra-fine micro drill with the diameter of only 0.01 mm, which is the finest drill in the world. With the rapid…

Tungsten News
Performance of the Coated Cemented Carbide Tools 2,083

The ratio?of coated cemented carbide tools in metal processing industry is increasing steadily. In recent 10 years, its quality and?performance?have been significantly improved. On the one hand, due to the quality?improvement of the coating , it?will be better to control porosity and thickness; on the other hand, the metallurgical technology between the coating and the substrate interface has also been improved, therefore can?increase?the adhesion of the coating and prevent?the interfacial reaction that reduces the strength. Increasing cutting speed can significantly…

Molybdenum
3D Printing Technology of the Cemented Carbide 879

Using the principle of discrete-stacking, 3D printing technology?is the manufacturing method to produce molded solid parts by layer-by-layer accumulation?way based on three-dimensional model. For the?rapid proto?typing?advantage?of complex part, it provides?the?solution for the preparation of cemented carbide parts to a certain extent. After recent years of development, printing technology has played an increasingly important role in the preparation of precision parts. 1.0 Spray adhesive powder forming printing alloy The printer carries out the STL file through the computer to form the…

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Needle-shaped Purple Tungsten Oxide for Energy Saving Film 195

As a typical oxide of non-ferrous metal tungsten, needle-shaped purple tungsten oxide particles are also finely divided purple tungsten oxide powder crystals. Because of their excellent physical and chemical properties, they are popular in many fields. In addition to being an important raw material for tungsten products such as metal tungsten powder and tungsten carbide powder, purple tungsten oxide is also an important additive for products such as energy storage electrodes, photocatalysts, shielding materials, resistance components, dimming glass and energy-saving…

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Research on the Microstructure of Tungsten Oxide 284

With the continuous development of the tungsten product industry, manufacturers have increasingly higher requirements for their quality and performance. As one of the important raw materials for tungsten products, the chemical purity, fluidity, bulk density, FSSS particle size, specific surface area and other properties of tungsten oxide will greatly affect the performance of tungsten products. Therefore, it is necessary to study the microstructure of tungsten oxides. All tungsten oxides are made from APT (ammonium paratungstate) and calcined. Due to the…

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Tungsten Oxide for High Temperature Resistant Lithium Battery Cathode 216

As for the new type of high temperature lithium battery cathode material, the reason why tungsten oxide ultrafine powder is selected as the key modifier is that the powder can greatly improve the heat resistance and chemical stability of electrode products. Cathode material is one of the key materials that determine battery performance, and it is also the main source of lithium ions in current commercial lithium-ion batteries, and its performance and price have a greater impact on the product.…

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Cemented Carbide Production Process 199

The production process of cemented carbide includes three processes of mixture preparation, forming and sintering. In order to make the alloy have higher strength and hardness, producers often dope the bonding metal into the carbide in fine powder form, add other elements if necessary, and then ball mill these materials for a certain period of time to make it becomes a homogeneous and granular mixture with complex requirements. Note: Grinding is usually carried out in organic solvents such as alcohol…

Molybdenum
Production Method of Molybdenum-Based Catalyst 367

Currently the increasing haze weather in China has attracted high attention on environmental pollution. To control environmental pollution, it is necessary to control the emission of pollutants from motor vehicles. The key is to reduce the content of sulfur and make the desulfurization. At present, more than 95% of refineries in the world use molybdenum-based?catalysts for desulfurization, which has the characteristic of high direct desulfurization activity and low hydrogen consumption. The common catalysts are cobalt-molybdenum catalysts and nickel-molybdenum catalysts. The…

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