High Carbon Vanadium and other alloy elements, such as: Cr, W, Mo and so on, forming hard initial carbides in the casting process. The carbide is stable at high temperatures. In the forging and subsequent heat treatment, most remain insoluble, they are the foundation of forming cold mold and tool wear and cutting resistance. In addition to the initial carbide, some Vanadium in the solid solution state, help to improve the work, mold the hardenability and toughness. Secondary carbide precipitation of Vanadium is in tiny. It can further improve the wear resistance by adjusting the chemical composition and heat treatment process, and can get a wide range of product performance. Common compounds of Vanadium are: Vanadium Pentoxide, Vanadyl trichloride and Vanadium Tetrachloride oxygen and so on.
1. High speed steel: as the cutting tool, the high speed steel need red hardness, namely the blade in the 600℃ can maintain sharp. Secondary Carbide Vanadium formed high speed steel casting and heat treatment transformation to meet this need.
2. Hot work mold steel: hot work mold steel in the process used to be high temperature, high pressure, high impact loads, requirements of hot work die steel with high strength and toughness, high thermal stability, high temperature strength, thermal fatigue resistance and high wear resistance. In order to meet these requirements, requirements of the mold surface with high hardness and high toughness characteristics of heart, hot work die steel vanadium can increase the hardenability of steel, so as to improve the toughness of the steel, and the surface of carbide can ensure its wear resistance.
3. Cold work mold steel: when the cold work mold steel at work, because of the deformation resistance of the materials to be processed is relatively large, the work part of the mold has a strong friction and extrusion, the cold work mold steel due to high hardness, strength and wear resistance. High vanadium steel can meet the requirements, but in the casting conditions, get the coarse carbides, easy to crack when forging, so high vanadium steel commonly used method of powder metallurgy production.
4. General tool steel: when adding Vanadium in the Carbon tool steel, heat treatment of fine carbide precipitation of Vanadium can increase the hardness of the tool, improve the cutting efficiency, and also can prolong the service life of tools. Vanadium also can refine the grain and improve the toughness and reduce the tendency to overheat.
1. High speed steel: as the cutting tool, the high speed steel need red hardness, namely the blade in the 600℃ can maintain sharp. Secondary Carbide Vanadium formed high speed steel casting and heat treatment transformation to meet this need.
2. Hot work mold steel: hot work mold steel in the process used to be high temperature, high pressure, high impact loads, requirements of hot work die steel with high strength and toughness, high thermal stability, high temperature strength, thermal fatigue resistance and high wear resistance. In order to meet these requirements, requirements of the mold surface with high hardness and high toughness characteristics of heart, hot work die steel vanadium can increase the hardenability of steel, so as to improve the toughness of the steel, and the surface of carbide can ensure its wear resistance.
3. Cold work mold steel: when the cold work mold steel at work, because of the deformation resistance of the materials to be processed is relatively large, the work part of the mold has a strong friction and extrusion, the cold work mold steel due to high hardness, strength and wear resistance. High vanadium steel can meet the requirements, but in the casting conditions, get the coarse carbides, easy to crack when forging, so high vanadium steel commonly used method of powder metallurgy production.
4. General tool steel: when adding Vanadium in the Carbon tool steel, heat treatment of fine carbide precipitation of Vanadium can increase the hardness of the tool, improve the cutting efficiency, and also can prolong the service life of tools. Vanadium also can refine the grain and improve the toughness and reduce the tendency to overheat.