1. Overview of DAC hot work die steel
DAC hot work die steel is a high-alloy tool steel, which is widely used in the field of hot work die because of its excellent high-temperature hardness and red hardness. This steel grade is usually smelted using electroslag remelting technology to ensure its purity and uniformity. The main chemical composition of DAC hot work die steel includes elements such as C, CR, SI, MN, etc., which play different roles in the steel and work together to improve its performance.
2. Excellent performance of DAC hot work die steel
1.High Temperature Strength and Red Hardness: DAC Hot Work Die Steel can still maintain high strength and red hardness at high temperatures, making it perform well in hot work die applications. This is mainly due to its high alloy composition and advanced smelting process.
2.Good toughness and fatigue resistance: DAC hot work die steel undergoes a special heat treatment process to have excellent toughness and fatigue resistance. This makes the mold less prone to cracking or breaking when subjected to high-intensity working loads.
3.Excellent wear resistance and corrosion resistance: DAC hot work die steel has good wear resistance and corrosion resistance after special alloy element ratio and heat treatment. This extends the life of the mold and reduces maintenance costs.
4.Good machinability: DAC hot work die steel has good machinability, easy to carry out sawing, milling, grinding and other processing operations, and improves production efficiency.
3. Application field of DAC hot work die steel
1.*DAC hot work die steel is widely used in hot forging dies, aluminum wheel molds, etc. in the automobile manufacturing industry. Its excellent performance ensures that the mold can maintain a long service life in a high-temperature, high-intensity working environment.
2.Metal Die Casting Industry: In the metal die casting process, DAC hot work die steel can be used to make die casting molds. Its high hardness and red hardness ensure that the mold maintains a precise size and shape in continuous work.
3.Steel industry: In the steel industry, DAC hot work die steels can be used to make a variety of high-temperature rolls, perforated needles, and other tools to withstand extremely high temperatures and pressures.
4.Other fields: In addition to the above application fields, DAC hot work die steel can also be used in hot work mold manufacturing in petrochemical, aerospace and other fields.
Fourth, the heat treatment process of DAC hot work die steel
In order to get the most out of DAC hot work tool steels, the right heat treatment process is crucial. Quenching and tempering heat treatment is usually carried out using vacuum or atmosphere protection heating technology. The choice of quenching temperature should be based on the specific steel grade and use to achieve the desired hardness and red hardness. The control of tempering temperature and time is of great significance to improve the toughness and durability of the mold.
5. The future development of DAC hot work die steel
With the continuous progress of science and technology and the continuous development of industry, the performance requirements for DAC hot work die steel are also constantly improving. In the future, in response to the requirements of higher working temperature, higher strength and longer service life, the research and development of DAC hot work die steel will pay more attention to the optimal ratio of alloying elements and the innovation of smelting process. At the same time, with the enhancement of environmental awareness, green smelting and low-carbon manufacturing will also become an important direction for the development of DAC hot work die steel.
VI. Conclusions
As a high-performance tool steel, DAC hot work die steel plays an irreplaceable role in many fields. Its excellent mechanical properties, good wear resistance and corrosion resistance, as well as easy processing, make it have a wide range of application prospects in hot work mold manufacturing. With the continuous progress of technology and the growth of application demand, DAC hot work die steel will have more room for development in the future.