China's Reconstruction as a "Major Power Weapon" to Fill the Domestic Gap

China Yizhong, formerly known as the First Heavy Machinery Factory, was founded in 1954. The establishment of China Yizhong put an end to the history of China's inability to produce complete sets of machine products

China Yizhong, formerly known as the First Heavy Machinery Factory, was founded in 1954. The establishment of China Yizhong put an end to the history of China's inability to produce complete sets of machine products. In the past 70 years, it has filled 475 technological gaps in domestic industrial products and created hundreds of "firsts". To promote the comprehensive revitalization of Northeast China, we must firmly grasp the "bull nose" of independent innovation. Now, what are the new achievements of China Yizhong on the path of high-quality development?

Reporter Ren Qiuyu from the headquarters: This is China's first heavy hydraulic press forging factory, where many core components of major country heavy weapons are forged. A nearly 500 ton steel ingot has just been taken out of the heating furnace and is now being transported to a 15000 ton hydraulic press for forging.

To forge such a heavy steel ingot, it requires a powerful 'guy thing'. The 15000 ton heavy-duty free forging hydraulic press in front of us is designed and manufactured by China Yizhong, which is currently the most advanced 10000 ton hydraulic press in the world.

Wang Yonggang, Deputy Factory Director of China Yizhong Hydraulic Press Forging Factory: Forging, in simple terms, is like "kneading the surface" and is a key process in forging the core components of a major country's heavy weapons. Only through sufficient forging can the "major country's heavy weapons" have higher performance indicators and meet higher requirements.

Wang Yonggang told reporters that due to the large order volume now, the hydraulic press forging factory is constantly forging core components for various major country heavy weapons every day. The reporter learned through research that the manufacturing of large forgings is one of the key foundations of major technical equipment manufacturing, directly affecting the overall level and operational reliability of complete equipment. This hydraulic press is required for high-end large-scale forging processing in fields such as nuclear power, hydropower, metallurgy, petrochemicals, and national defense equipment in China. In the past, due to insufficient equipment capacity and experience, those who wanted to process large forgings often relied on imports for a long time due to their spare energy.

Liu Jingjie, a first-class researcher at China First Heavy Industries (Tianjin R&D), said that in the past, the manufacturing technology for such forgings was mastered abroad, and there was no manufacturing experience or capability domestically. Previously, oversized forgings such as heavy petrochemical containers were constructed using welded joints, but welded joints had one problem: one was the long manufacturing cycle and high cost, as the presence of welds would shorten their service life.

Now, with the assistance of this 15000 ton hydraulic press, China First Heavy Industries has achieved a series of significant achievements in some key core components in the fields of nuclear power, hydropower, and heavy-duty petrochemical containers.

Liu Jingjie, a first-class researcher at China First Heavy Industries (Tianjin R&D), said that in recent years, China First Heavy Industries has also been driven by technological innovation to develop integral tube sheet forgings with a diameter of 9 meters and ultra large conical cylinder forgings with a diameter of 6.7 meters. Throughout the entire research and development process, we have broken through foreign technological blockades and mastered the core manufacturing technology of this type of forging. The entire technology has also been successfully applied to some key components of related heavy petrochemical containers, achieving good economic benefits and achieving the localization and localization of such forgings.

Nowadays, in China, the atmosphere of innovation and research and development is everywhere, with research teams running on the production line, brainstorming and contributing to major national equipment projects.

Zhu Lin, Management Director of China Yizhong Science and Technology Department: Over the past 5 years, we have undertaken more than 30 national key and major projects, and have successfully passed the project acceptance and achieved application.

In recent years, more and more enterprises in Heilongjiang, like China Yizhong, have taken the path of independent innovation. The policies and measures introduced by Heilongjiang Province, such as "20 Industrial Revitalization Measures" and "60 Innovative Development Measures," are also helping enterprises innovate and develop.

Yang Yuxin, Director of the Science and Technology Department of the Heilongjiang Provincial Department of Industry and Information Technology: By promoting key technology research and development, we have organized enterprises to develop 487 sets of the first products with independent intellectual property rights. In the fields of aerospace, power equipment, nuclear power equipment, special robots, high-speed and heavy-duty railway freight cars, a batch of products created by Longjiang have reached the world's advanced or leading level, contributing to the maintenance of national industrial security.

At present, China Yizhong is conducting research and development on the core components of the 500 MW impact turbine unit, which will enable China to master the production capacity of the world's largest and heaviest hydroelectric unit "heart" forgings.

Source: CCTV News

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