Tungsten steel, as an excellent high-performance material, stands out as the material of choice in many harsh application environments. It is a sintered composite material composed of a variety of metal carbides, common metal carbides include tungsten carbide powder, cobalt carbide powder, niobium carbide powder, titanium carbide powder and tantalum carbide powder.
The most striking properties of tungsten steel are its excellent hardness and strength, which allows tungsten steel to withstand extremely high pressures and friction forces, and maintain stable performance even under extreme conditions. In addition, tungsten steel also has excellent wear resistance and toughness, which means that tungsten steel can retain its original shape for a long time and is not easy to break in working environments that require frequent use or high loads.
It is worth mentioning that tungsten steel also has excellent heat and corrosion resistance. In a high-temperature environment, many materials will lose their original properties due to thermal expansion, but tungsten steel can maintain stable shape and properties at high temperatures. In corrosive environments such as moisture, acidity or alkaline, tungsten steel can maintain its original luster and properties for a long time.
The manufacturing process of tungsten steel, especially its sintering stage, is key to ensuring its performance. After the powder is pressed into a blank, it is fed into a sintering furnace for heating. This process can be divided into several stages, the first is the removal of the forming agent and the pre-firing stage, which is to remove impurities and residues from the material; This is followed by the solid-phase sintering stage, in which the powders are gradually combined to form a solid structure; This is followed by a liquid-phase sintering stage, in which part of the powder melts, further strengthening the material; In the final cooling stage, the material is cooled from the sintering temperature to room temperature, ensuring its structural stability.
Tungsten steel may be affected by a variety of factors during the sintering process, resulting in its deformation. These factors include carbon gradients, cobalt gradients, temperature gradients, pressed product density gradients, improper boat loading, and shrinkage coefficients. In order to ensure that the shape and properties of tungsten steel meet the requirements, these factors must be precisely controlled.
Tungsten steel has a wide range of applications in many fields. For example, in the field of mold manufacturing, tungsten steel is widely used in the production of various molds such as drawing dies, drawing dies, drawing dies, wire drawing dies, hot extrusion dies, cold stamping dies and forming punching dies due to its wear resistance. In the mining sector, tungsten steel is used in the manufacture of various mining products such as drill bits and picks. In addition, tungsten steel is also used in the manufacture of wear-resistant materials such as sealing rings, wear-resistant materials, guide rail materials, nozzles, and grinding machine mandrels.