It has been found that modification is the most effective way to improve the photocatalytic activity of tungsten trioxide. Common modification materials are gold, silver, platinum, iron, copper, zinc, bismuth, titanium and so on. A kind of zinc modified tungsten trioxide thin film photocathode material is introduced in this paper.

Among skarn tungsten deposits, wolframite and scheelite are the most common phenomena, and scheelite also coexists with calcareous gangue minerals such as fluorite, calcite, apatite and garnet. The flotability of scheelite and fluorite gangue minerals is similar, so the flotation separation of scheelite and fluorite is always a technical problem.

Unbonded tungsten carbide ceramics, with better corrosion resistance, have been widely used in corrosive environment as a substitute for traditional cemented carbides. In addition, this kind of ceramics has better high-pressure resistance and high-speed sliding friction than other ceramics when applied to wear materials.

Tungsten boride compounds play a very important role in modern industry. They have high melting point, high hardness, wear resistance, high temperature resistance, corrosion resistance and excellent electrical conductivity. They are widely used in high temperature structural materials, refractories, electrode materials, structural materials, wear resistant materials and other fields. With the progress of science and technology, the application fields of B-W series compounds are still in progress. It will be further expanded to show more uses.

25×100×200mm tungsten copper block is prepared by powder metallurgy method, which has good electrical and thermal conductivity, good high temperature strength and certain plasticity. At very high temperature, such as above 3000 °C, the copper in the alloy is liquefied and evaporated, and a large amount of absorption Heat, reducing the surface temperature of the material.

20×100×100mm tungsten copper block has the characteristics of small thermal expansion coefficient, high temperature non-softening, high density, high hardness and high strength. It can be widely used in electrical materials (divided into electrical contact materials and electrical processing materials), instantaneous high temperature materials and military armor materials.

Tungsten copper die casting mold is a kind of metal mold to form in the pressure casting process, which molten alloy filling under high temperature, high pressure and cooling solidification molding.

Tungsten copper block is used in the most economical way for electrode electrical discharge machining (EDM) and electrochemical machining (ECM). The spark erosion characteristics and good electron emission characteristics of these sintered products make them excellent EDM electrode materials. They have excellent wear resistance, good material removal rates and the ability to maintain good detail.

Tungsten copper weight block has good physical properties and mechanical properties, and the composition of the structure is uniform and stable, making it suitable for golf weights. The tungsten copper material adopts powder metallurgy and infiltration process, which makes the structure uniform and stable, and the comprehensive performance is excellent.

Tungsten carbide is a material with unique physical and chemical properties. This material combines the properties of ionic crystals, covalent compounds and transition metals. It has been applied in various mechanical fields of high temperature resistance, abrasion resistance and corrosion resistance.