Transition metal nitrides are interstitial compounds formed by nitrogen atoms inserted into metal lattices. They have high melting point, high hardness, high mechanical strength, excellent thermal stability and chemical stability. They can be used as cutting tools, wear resistant parts and high temperature resistant materials.

Tungstic acid is an important basic chemical raw material, and it is widely used. As mordant, it is used in pigments, dyes and inks, and as a cosolvent to introduce enamel pigments to reduce firing temperature and complement color. Textile industry is used as fabric weighting agent, fabric additives, and mixture of tungstic acid, ammonium sulfate, ammonium phosphate, etc. is used for fire prevention and waterproofing of fibers, making fire-proof rayon and artificial cotton. 

In recent years, the problem of environmental pollution has become increasingly serious, and the problem of energy shortage is also imminent. In the face of these two crises, people have launched scientific research on pollution control and environmental protection.

Nano tungsten carbide is the main material of cemented carbide because of its high hardness and high strength. Two problems that restrict the development of nano-tungsten carbide cemented carbide are the difficulty in preparation of nano-tungsten carbide powder and the rapid growth of tungsten carbide particles in liquid phase sintering.

Scheelite is a kind of mineral resource which is not easy to be mined. It often coexists with calcium gangue, has low geological grade and is relatively difficult to beneficiate. In order to obtain qualified scheelite concentrate in industry, flotation technology is widely used in the process of selecting scheelite. The most traditional method is heating flotation.

Ø9x200mm tungsten copper rod with diameter of Ø9mm and length of 200mm, the general diameter tolerance is ±0.5mm and length tolerance is 0 to +5mm. With excellent electrical and thermal conductivity, uniform microstructure, high temperature resistance, high strength, arc erosion resistance, high density; moderate conductivity and thermal conductivity.

Ø8x200mm tungsten copper rod with diameter of Ø8mm and length of 200mm, the general diameter tolerance is ±0.5mm and length tolerance is 0 to +5mm. As a contact material, it has very good machinability and thermal shock resistance. Due to arcing during contact and breaking, the contact material will rise by several thousand degrees Celsius in a fraction of a second.

Ø7x200mm tungsten copper rod with diameter of Ø7mm and length of 200mm, the general diameter tolerance is ±0.5mm and length tolerance is 0 to +5mm. which has excellent mechanical strength and excellent arc erosion resistance. In practical applications, it is widely used in vacuum electrical contacts, transformer switch contactors, and some electric and electric forging industries.

Ø6x200mm tungsten copper rod with diameter of Ø6mm and length of 200mm, the general diameter tolerance is ±0.5mm and length tolerance is 0 to +5mm. It has good electrical and thermal conductivity, arc ablation resistance and high material erosion rate, especially in the corrosion of molds made of tungsten steel and high temperature resistant super hard alloys.

Ø5x200mm tungsten copper rod with diameter of Ø5mm and length of 200mm, according to the content of tungsten and copper, the main proportion or grade of Ø5x200mm tungsten copper rod includes W50, W55, W60, W65, W70, W75, W80, W85, W90 and so on. Different proportions of tungsten and copper rods have different uses.