Low Carbon Tungsten Particles

The main function of molybdenum disulfide used in friction materials is to reduce friction at low temperature and increase friction at high temperature, with small loss on ignition and volatile in friction materials. Friction reduction: The particle size of molybdenum disulfide processed by supersonic jet pulverization reaches 325-2500 mesh, the micro-particle hardness is 1-1.5, and the friction coefficient is 0.05-0.1, so it can be used in friction materials to reduce friction; Friction...

Molybdenum trioxide nanopowder should be stored in a dry, cool and sealed environment, do not expose to the air, and avoid heavy pressure, and transport it as ordinary goods. 1. It is used as a catalyst in the petroleum industry, and also used in the manufacture of molybdenum metal, enamel pigments and pharmaceuticals. 2. In the metallurgical industry, it is used as a raw material for powder metallurgy and in the manufacture of various molybdenum metal materials, and in the chemical industry as...

Molybdic acid is used to prepare other molybdenum compounds and metal molybdenum. Manufacture of molybdenum catalysts (such as petroleum catalysts, etc.), blue ceramic glazes and coatings. Used as a raw material for the manufacture of molybdenum salts. Among them, ammonium secondary acid is a commonly used laboratory reagent and a trace element fertilizer. In analytical chemistry, it is used for quantitative analysis of phosphorus, phosphate and aluminum. Medicine, metal plating coloring, and...

High-quality molybdic acid is used as catalyst in petrochemical industry, and used in metallurgical industry to make molybdenum powder, molybdenum bar, molybdenum wire, molybdenum billet, molybdenum sheet and other chemical molybdenum acid. Welcome to inquire to get discount, and technical support is also included when purchasing more than one ton Company Profile Jiangsu Leiji Metal Materials Co., Ltd. is a manufacturer of sodium tungstate, tungsten bar, sodium molybdate, ammonium molybdate,...

The solution is milky white before the reaction, golden yellow in the early stage, and green in the later stage. During the reaction, the reaction solution should be kept boiling steadily, and water should be added to maintain the liquid level. The pH value in the later stage of the reaction should be controlled at about 1.0, and then the filter residue is removed by vacuum filtration. 30% hydrogen peroxide solution was added dropwise to the filtrate to make the solution change from green to...

The largest application of ferromolybdenum is in the production of ferroalloys, depending on the content and range of molybdenum, which are suitable for machine tools and equipment, military equipment, oil refinery tubing, load-bearing components and rotary drills. Ferromolybdenum is also used in cars, trucks, locomotives, ships, etc. In addition, ferromolybdenum is used in stainless steel and heat resistant steel is employed by synthetic fuels and chemical plants, heat exchangers, generators,...

Molybdenum dioxide has received the most intense attention in chemistry as the various oxyhalides of molybdenum. Although this product has long been known, it was only in the last few years that this compound was used as a catalyst for organic transformations. This cis-dioxymolybdenum compound has shown the potential to catalyze a range of reactions. Therefore, MoO 2 Cl 2 is expected to be used as a catalyst in a multi-step synthesis process. Since this catalyst has not been well explored, it...

Molybdenum dioxide is a transition metal oxide with high electrical conductivity, high melting point and high chemical stability. Its efficient charge transport properties make it suitable for catalysts, sensors, electrochromic displays, recording materials, electrochemical supercapacitors, Li ions Batteries and field emission materials have broad application prospects [4]. Application of Catalytic Materials The free electron density in the valence band of molybdenum dioxide is higher, which...

Molybdenum powder is divided into lightweight molybdenum powder (PCC) and molybdenum powder (GCC). The characteristics of molybdenum powder are that the color, particle size, surface characteristics, dispersity, rheology, thixotropy and crystal form can be manually adjusted, and the molybdenum powder has high chemical purity, strong chemical inertness, and good thermal stability. will decompose. In addition, molybdenum powder also has the advantages of low oil absorption rate, low hardness,...

A common tungstic acid, referred to as tungstic acid, is a light orange-yellow powder; the composition varies slightly with the preparation conditions. When the composition is WO3·H2O, the density is 5.5g/cm3, and it is dehydrated at 100 °C; insoluble in water, After immersion, it gradually gelled and dissolved in ammonia water, alkaline solution and concentrated hydrochloric acid. Yellow tungstic acid is burned and dehydrated to form tungsten trioxide WO3, which is a bright light yellow...

white tungstic acid Microcrystalline white powder, n:m>1.3, the ratio of n to m varies with preparation and drying conditions. White tungstic acid has significant activity, slightly photosensitivity, easy to reduce. It is prepared by adding sodium tungstate solution dropwise to dilute nitric acid. Decomposing the aqueous tungstate peroxide solution with nitric acid can also obtain powdered tungstic acid, whose activity is worse than that of microcrystalline powdered tungstic acid. White...

Tungsten trioxide is a powder metallurgy raw material for the production of cemented carbide and tungsten products. According to the national standard (GB/T 3457-1998), it is divided into two types, namely tungsten trioxide (referred to as yellow tungsten), the molecular formula is WO3, and blue tungsten oxide (referred to as blue tungsten, which is a mixed tungsten oxide), molecular formula W20O58. Yellow tungsten is light yellow crystalline powder, blue tungsten is dark blue or blue-black...

Tungsten trioxide is a light yellow triclinic powder crystal. When the temperature is higher than 740 ℃, it transforms into an orange tetragonal crystal, and returns to its original state after cooling. It is stable in air, the melting point is 1473℃, the boiling point is higher than 1750℃, and the relative density is 7.16. Tungsten trioxide is the most stable one among tungsten oxides. It is insoluble in water and inorganic acids except hydrofluoric acid. It can be dissolved in hot...

Tungsten oxide has gas sensitivity and is used for the detection of nitrogen dioxide, ammonia and other toxic gases. Tungsten oxide thin film gas sensors and tungsten oxide nanoparticle sensors have been prepared, and the discovery of nanosensors has greatly improved the detection of low-concentration toxic gases Company Profile Jiangsu Leiji Metal Materials Co., Ltd. is a manufacturer of sodium tungstate, tungsten bar, sodium molybdate, ammonium molybdate, molybdenum bar, and other tungsten...

Part of tungsten oxide is used in the production of chemical products, such as paints and coatings, catalysts in the petroleum industry, etc.; but tungsten oxide is an intermediate product, and a large amount of tungsten oxide is used in metal tungsten powder and tungsten carbide powder, and then used in the production of metal tungsten products It is widely used in the production of tungsten alloy products, such as tungsten copper, tungsten nickel, tungsten nickel iron, tungsten silver,...

Tungsten oxide is used for many purposes in daily life. It is often used in industrial X-ray screen phosphors and fire-resistant fabrics to make tungstate. Due to its rich yellow element, tungsten oxide is also used as a pigment in ceramics and paints. Tungsten trioxide has been employed in the production of electrochromic windows, smart windows. These windows are electrically switched glass, and the light transmission performance varies with the applied voltage. This allows users to tint their...

Ferro-tungsten iron alloy series (tungsten content: 70%-80%) is an alloy composed of tungsten and iron, which is used as an alloy additive for steelmaking. Commonly used ferrotungsten contains 70% tungsten and 80% tungsten. Ferrotungsten is prepared from wolframite by carbon reduction in an electric furnace. Mainly used as alloying element additive for tungsten-containing alloy steel (such as high-speed steel). There are three varieties of ferrotungsten produced in my country, including W701,...

Iron tungsten is smelted by electric furnace. Due to its high melting point, it cannot be released in liquid state, so it is produced by agglomeration method or iron extraction method. Before the 1930s, a small (100-500 kVA) single-phase electric arc furnace was generally used for agglomeration smelting. Later, a three-phase electric furnace was used, and the iron extraction method was developed. There are a large number of tungsten ore in Jiangxi, Hunan and Guangdong in China, and the reserves...

Tungsten is a silver-gray metal. The atomic weight is 183.85. Electronic structure 4f145d46s2. Density (20°C) 19.3g/cm3. Melting point 3400 ℃. Boiling point 5555℃. Tungsten forms solid solution with iron and two intermetallic compounds Fe2W and Fe3W2 or Fe7W6, but both are unstable at high temperature. The melting temperature of ferrotungsten containing W75% to 85% is higher than 2500 ° C, so it cannot be discharged from the furnace, and can only be produced by the accumulation method or the...

Iron alloys mainly composed of tungsten and iron. It also contains impurities such as manganese, silicon, carbon, phosphorus, sulfur, copper, and tin, and is an alloying agent for steelmaking. According to the different tungsten content, ferrotungsten is divided into: FeW75 (including W70%～80%, C≤0.20%, P≤0.04%, S≤0.08%, Si≤0.5%, Mn≤0.25%) and FeW80 (including W75.0%～85.0%, C≤0.20%, P≤0.04%, S≤0.08%, Si≤0.7% and Mn≤0.25%). Company Profile Jiangsu Leiji Metal Materials Co., Ltd. is a...