The “Eleventh Five-Year†Science and Technology Project “Research and Development of High Performance Powder Metallurgy High Speed ​​Steel†(Project No.: Z07000300700704) undertaken by Antai Technology Co., Ltd. has successfully passed the acceptance test and has been put into trial production. This project lasted for three years, using the "gas atomization + HIP + precision forging" process, focusing on solving the oxygen content and inclusion control technology and related equipment transformation, the product oxygen content is less than l00 × 10-6 (1 00 PPM), The room temperature hardness of the finished product is more than 67H RC, the bending resistance is more than 4 000 MPa, and the comprehensive performance is close to that of similar foreign products. The company is now able to produce AHPT15 and AHPT15M with an annual production capacity of 50 tons. During the “Twelfth Five-Year Plan†period, the company will continue to conduct product series development and industrialization technology research according to market demand.
The main feature of powder metallurgy high-speed steel (PMHSS) is that it can fundamentally solve the problem of carbide segregation, coarse grain and other problems in ordinary cast-forged high-speed steel by using powder metallurgy process, and can add a large amount of alloying elements in steel. . Therefore, the material strength and toughness are greatly improved, and the performance and service life of the tool are remarkably improved. It is very suitable for machining applications with high cutting impact and high metal removal rate (such as flexing cutting, interrupted cutting, etc.). Powder metallurgy high-speed steel production began in the 1970s, the US Crucible plant and the Swedish Stora plant (now France's Erasteel company) have successively invested in industrial production, and industrial technology has been monopolized by foreign countries. China Iron and Steel Research Institute has also studied the preparation technology of powder metallurgy high-speed steel due to the demand of military industry. However, due to the market and cost factors, the development and production of powder metallurgy high-speed steel once paused. This topic is based on powder. Metallurgical high-speed steel industrialization technology is being tackled. Powder metallurgy high-speed steel is an important part of high-performance super-hard tool material system. It is the first choice for foreign production of high-performance, large-size and complex-shaped cutting tools, especially in large-size cutting tools, broaches and various milling cutters. It has obvious advantages in the manufacture of sophisticated tools. During the "Twelfth Five-Year Plan" period, with the promulgation of the "Decision of the State Council on Accelerating the Cultivation and Development of Strategic Emerging Industries" and the rapid development of China's automobile industry, aircraft manufacturing industry, electric steam turbines, high-speed railways and large-scale petrochemical equipment, It will further promote the development of high-end equipment and manufacturing technology in China in the direction of high speed, high efficiency, compound, intelligent and environmental protection. In terms of processing and manufacturing, not only large-sized, holistic and complex-shaped tools are required, but also an increasing number of difficult-to-machine special materials have placed increasing demands on the hardness, bending strength and impact properties of tool materials. Therefore, the development of powder metallurgy high-speed steel is not only the progress of tool materials and the comprehensive strength of China's powder metallurgy technology, but also has become one of the foundation and key technology for revitalizing China's equipment manufacturing industry. At present, the world's powder high-speed steel production is mainly concentrated in 7 enterprises, with a total production capacity of about 22,000 tons. Powder metallurgy high-speed steel has accounted for more than 10% of the annual output of high-speed steel, and the proportion of powder metallurgy high-speed steel used in the United States exceeds 15%. In the next five years, China's total market demand for powder metallurgy high-speed steel materials and products, plus exports can reach 1,500 to 2,000 tons.
The main feature of powder metallurgy high-speed steel (PMHSS) is that it can fundamentally solve the problem of carbide segregation, coarse grain and other problems in ordinary cast-forged high-speed steel by using powder metallurgy process, and can add a large amount of alloying elements in steel. . Therefore, the material strength and toughness are greatly improved, and the performance and service life of the tool are remarkably improved. It is very suitable for machining applications with high cutting impact and high metal removal rate (such as flexing cutting, interrupted cutting, etc.). Powder metallurgy high-speed steel production began in the 1970s, the US Crucible plant and the Swedish Stora plant (now France's Erasteel company) have successively invested in industrial production, and industrial technology has been monopolized by foreign countries. China Iron and Steel Research Institute has also studied the preparation technology of powder metallurgy high-speed steel due to the demand of military industry. However, due to the market and cost factors, the development and production of powder metallurgy high-speed steel once paused. This topic is based on powder. Metallurgical high-speed steel industrialization technology is being tackled. Powder metallurgy high-speed steel is an important part of high-performance super-hard tool material system. It is the first choice for foreign production of high-performance, large-size and complex-shaped cutting tools, especially in large-size cutting tools, broaches and various milling cutters. It has obvious advantages in the manufacture of sophisticated tools. During the "Twelfth Five-Year Plan" period, with the promulgation of the "Decision of the State Council on Accelerating the Cultivation and Development of Strategic Emerging Industries" and the rapid development of China's automobile industry, aircraft manufacturing industry, electric steam turbines, high-speed railways and large-scale petrochemical equipment, It will further promote the development of high-end equipment and manufacturing technology in China in the direction of high speed, high efficiency, compound, intelligent and environmental protection. In terms of processing and manufacturing, not only large-sized, holistic and complex-shaped tools are required, but also an increasing number of difficult-to-machine special materials have placed increasing demands on the hardness, bending strength and impact properties of tool materials. Therefore, the development of powder metallurgy high-speed steel is not only the progress of tool materials and the comprehensive strength of China's powder metallurgy technology, but also has become one of the foundation and key technology for revitalizing China's equipment manufacturing industry. At present, the world's powder high-speed steel production is mainly concentrated in 7 enterprises, with a total production capacity of about 22,000 tons. Powder metallurgy high-speed steel has accounted for more than 10% of the annual output of high-speed steel, and the proportion of powder metallurgy high-speed steel used in the United States exceeds 15%. In the next five years, China's total market demand for powder metallurgy high-speed steel materials and products, plus exports can reach 1,500 to 2,000 tons.
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