1. Hot work die steel and cold work die steel are two commonly used die steel materials, and they have some differences in use and performance. First of all, hot work die steel refers to the mold steel material that is processed and used at high temperatures, and is usually used for hot pressing molds, hot shear molds, hot stamping dies, etc.
2. First of all, we all know that cold work die steel focuses on hardness and wear resistance. The carbon content is high, and the alloying elements are mainly based on adding hardenability and improving wear resistance.
However, hot work die steel has appropriate hardness requirements, focusing on red hardness, thermal conductivity, and wear resistance.
3. Die steel is generally divided into two categories: cold work die steel and hot work die steel. Cold die steel is used to manufacture various cold stamping dies, cold heading dies, cold extrusion dies and wire drawing dies, etc., and the working temperature does not exceed 200 300oC. Hot die steel is used to manufacture various hot forging dies, hot pressing dies, hot extrusion dies, etc., and the surface temperature of the cavity can reach more than 600OC when working.
4. Formation process: the formation of a crystal nucleus, the growth of a grain, the dissolution of residual cementite, and the homogenization of a;Factors: heating temperature, holding time, heating speed, composition of steel, original structure.
5. Different classifications: cold work die steel includes molds for manufacturing punching (blanking punching dies, trimming dies, punches, scissors), cold heading dies and cold extrusion dies, compression and bending dies and wire drawing dies, etc.;Hot work dies include hammer forging dies, hot extrusion dies and die-casting dies.
1. The temperature used is different, and the cold work die steel is used at low temperature (below 100 degrees), mainly used in stamping dies. Hot work die steel is used at high temperatures, mainly in die-casting molds. Cold work die steel focuses on hardness and wear resistance. The carbon content is high, and the alloying elements are mainly to increase hardenability and improve wear resistance.
2. First of all, we all know that cold work die steel focuses on hardness and wear resistance. The carbon content is high, and the alloying elements are mainly based on adding hardenability and improving wear resistance. However, hot work die steel has appropriate hardness requirements, focusing on red hardness, thermal conductivity, and wear resistance.
3. Hot work die steel and cold work die steel are two commonly used die steel materials, and they have some differences in use and performance. First of all, hot work die steel refers to the mold steel material that is processed and used at high temperatures, and is usually used for hot pressing molds, hot shear molds, hot stamping dies, etc.
4. Among them, CR12 die steel has excellent grinding performance and cost-effectiveness, and is a more commonly used cold work die steel.
Hot work die steel Hot work die steel is mainly used to manufacture molds that work in high temperature environments, such as plastic molds, die-casting molds, etc.
5. Hot work die steel Working conditions of hot work die Hot work die includes three types: hammer forging die, hot extrusion die and die-casting die. As mentioned earlier. The main feature of the working conditions of the hot work mold is that it is in contact with the hot metal, which is the main difference from the working condition of the cold work mold.
6. Different characteristics and requirements: cold die steel pays more attention to strength and wear resistance, and has high carbon content. Hot work die steel pays more attention to red hardness, heat transfer, wear resistance and low carbon content. Different physical characteristics: hardness, wear resistance and excellent process performance of cold die steels. The aluminum alloy Huaiti element is mainly used to improve the cutting performance and is not easy to quench.