China’s formerly forged the “trumpet-shaped†cone-shaped cylinder on its 15,000-ton hydraulic press, which is a skillful “hands-onâ€. It is possible to forge the "straight section" and "oblique section" of the third-generation nuclear power evaporator connected to the "meter-shaped" cone cylinder, which is a rare "single skill". On January 15th, China successfully succeeded in forging the world's first third-generation nuclear power evaporator cone.
From the forging "trumpet" to the forging "rice-shaped" cone cylinder, it is an innovative leap in high-hard forging technology, marking that China has mastered the third-generation nuclear power product key component manufacturing technology, and is important for promoting the localization of nuclear power component manufacturing. significance.
At present, the AP1000 third-generation nuclear power technology of the Westinghouse Company in the United States has obvious advantages such as less welds, better safety and higher operating efficiency than the second-generation nuclear power standards. It is the most advanced and safe commercial nuclear power technology in the world nuclear power market. Doosan Heavy Industries of Korea uses third-generation nuclear power technology to manufacture nuclear power equipment. In November 2007, China was responsible for the two major forgings of pressure vessels and four evaporators of the No. 1 and No. 2 units, which were difficult to manufacture and difficult to manufacture. The key components of the third-generation nuclear power products are difficult to manufacture, and they pose new and serious challenges for a person who is determined to achieve the AP1000 localization strategy.
The newly forged AP1000 evaporator cone is like a large "meter" with a height of 2 meters and a width of 4 meters. The straight section of the cone end is the biggest technical difficulty in forging. In the past, the traditional forging method was to forge a cylindrical body into a "flare shape", and then rely on a large number of post-processing to reach the technical index of the oblique section and the straight section of the two ends of the cylinder. According to this processing method, nearly 300 tons of steel ingots can be used to ensure the post-processing technical requirements, waste a large amount of molten steel, and increase the manufacturing cost of the cylinder. How to break through the bottleneck of the traditional processing of the cone barrel, labor, time and cost? This is important for the manufacture of 70% forged cones. More importantly, the manufacture of key components such as the AP1000 evaporator cone is localized. It requires a heavy engineering technician to explore a world-class new forging. technology.
Wang Baozhong, president of a heavy black and steel casting and forging steel company, led the technicians of a heavy metallurgical research institute to organize scientific research and research and solve technical difficulties. Together with Tsinghua University, they repeatedly carried out simulation tests on 10,000 tons of hydraulic press technology on the computer, calculated the technical parameters of each "one fire" in the forging process, and invented 11 kinds of auxiliary tools for the forging processing of tons of hydraulic presses.
These 11 kinds of auxiliary tools are like 11 "hands-on". When the 10,000-ton hydraulic press forges a cone-shaped cylinder, it can handle the forgings with ease and precision. It can change the angle and accurately change, greatly improving the forging efficiency and reducing the manufacturing. The cost of the final forged AP1000 tapered cylinder. At present, Yizhong has become the only enterprise in China that can forge the third-generation nuclear power evaporator cone and other components.
On the evening of January 15th, the reporter came to a heavy interview. One of the two drawings in front of the finger of the AP1000 project manager Xing Qihui was like the shape of the bottom of the pot. "This is the AP1000 key component pressure vessel top cover. The manufacturing technology standard is higher. Forgings that are very difficult to machine require no welds to be formed at one time to increase the safety factor. Like these other 37 kinds of forgings that are difficult to manufacture, they are being put into production and will be delivered before 2009."
After successfully forging the third-generation nuclear power evaporator cone cylinder, nuclear power equipment processing and manufacturing enterprises such as “Harbin Boiler Factory†and “Shandong Ocean†have come to order a heavy-duty AP1000 pressure vessel, evaporator cone cylinder, etc. Key components of the third generation of nuclear power equipment.
From the forging "trumpet" to the forging "rice-shaped" cone cylinder, it is an innovative leap in high-hard forging technology, marking that China has mastered the third-generation nuclear power product key component manufacturing technology, and is important for promoting the localization of nuclear power component manufacturing. significance.
At present, the AP1000 third-generation nuclear power technology of the Westinghouse Company in the United States has obvious advantages such as less welds, better safety and higher operating efficiency than the second-generation nuclear power standards. It is the most advanced and safe commercial nuclear power technology in the world nuclear power market. Doosan Heavy Industries of Korea uses third-generation nuclear power technology to manufacture nuclear power equipment. In November 2007, China was responsible for the two major forgings of pressure vessels and four evaporators of the No. 1 and No. 2 units, which were difficult to manufacture and difficult to manufacture. The key components of the third-generation nuclear power products are difficult to manufacture, and they pose new and serious challenges for a person who is determined to achieve the AP1000 localization strategy.
The newly forged AP1000 evaporator cone is like a large "meter" with a height of 2 meters and a width of 4 meters. The straight section of the cone end is the biggest technical difficulty in forging. In the past, the traditional forging method was to forge a cylindrical body into a "flare shape", and then rely on a large number of post-processing to reach the technical index of the oblique section and the straight section of the two ends of the cylinder. According to this processing method, nearly 300 tons of steel ingots can be used to ensure the post-processing technical requirements, waste a large amount of molten steel, and increase the manufacturing cost of the cylinder. How to break through the bottleneck of the traditional processing of the cone barrel, labor, time and cost? This is important for the manufacture of 70% forged cones. More importantly, the manufacture of key components such as the AP1000 evaporator cone is localized. It requires a heavy engineering technician to explore a world-class new forging. technology.
Wang Baozhong, president of a heavy black and steel casting and forging steel company, led the technicians of a heavy metallurgical research institute to organize scientific research and research and solve technical difficulties. Together with Tsinghua University, they repeatedly carried out simulation tests on 10,000 tons of hydraulic press technology on the computer, calculated the technical parameters of each "one fire" in the forging process, and invented 11 kinds of auxiliary tools for the forging processing of tons of hydraulic presses.
These 11 kinds of auxiliary tools are like 11 "hands-on". When the 10,000-ton hydraulic press forges a cone-shaped cylinder, it can handle the forgings with ease and precision. It can change the angle and accurately change, greatly improving the forging efficiency and reducing the manufacturing. The cost of the final forged AP1000 tapered cylinder. At present, Yizhong has become the only enterprise in China that can forge the third-generation nuclear power evaporator cone and other components.
On the evening of January 15th, the reporter came to a heavy interview. One of the two drawings in front of the finger of the AP1000 project manager Xing Qihui was like the shape of the bottom of the pot. "This is the AP1000 key component pressure vessel top cover. The manufacturing technology standard is higher. Forgings that are very difficult to machine require no welds to be formed at one time to increase the safety factor. Like these other 37 kinds of forgings that are difficult to manufacture, they are being put into production and will be delivered before 2009."
After successfully forging the third-generation nuclear power evaporator cone cylinder, nuclear power equipment processing and manufacturing enterprises such as “Harbin Boiler Factory†and “Shandong Ocean†have come to order a heavy-duty AP1000 pressure vessel, evaporator cone cylinder, etc. Key components of the third generation of nuclear power equipment.
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