China News Service, Qiqihar, September 29th: Liu Boming: Breaking the monopoly of foreign countries and forging great weapons

　　Author Shi Yifu

　　"Near Net Shape Technology of Transition Section", "Main Pump Case", "AP1000 Water Chamber Head", "CAP1400RPV Takeover Section", "CAP1400RPV Bottom Head", "AP1000 Main Pipeline", "AP1000SG Conical Cylinder"... These have been used by foreign countries From 2012 to 2022, the monopolized technology or product was successively broken by the team led by Liu Boming, deputy director of the hydraulic press forging plant of the Casting and Forging Steel Division of China First Heavy Machinery Co., Ltd. China First Heavy Machinery Co., Ltd.

　　China First Heavy Industry Group Co., Ltd. (hereinafter referred to as China First Heavy Industries Group Co., Ltd.) has the full coverage of nuclear island primary circuit nuclear power equipment manufacturing capabilities. It is the leader of China's nuclear island equipment, an international advanced nuclear island equipment supplier and service provider, and is the world's oil refining and processing company. The largest supplier of hydrogen reactors and the full-process equipment supplier of metallurgical enterprises.

In the past 70 years, China has successively ended the history of my country's inability to produce heavy equipment, the history of complete machine products, and the history of nuclear power production, which not only drove the overall improvement of my country's heavy machinery manufacturing level, but also strongly supported national defense and national economy. development of.

Liu Boming and his co-workers at work.

China First Heavy

　　Liu Boming is one of the "manipulators" of the heavy equipment of many major countries. He controls a 15,000-ton hydraulic press, and ingeniously deforms large steel ingots weighing several hundred tons into various large forgings such as shafts, rollers, cylinders, rings, etc. The process of localization and industrialization of super large forgings in China.

He said: "I love China First Heavy Industries Co., Ltd. and the 15,000-ton hydraulic presses that accompany me day and night. Without the fertile soil of Yizhong Heavy Industries Co., Ltd. and the 10,000-ton hydraulic presses, I would not be where I am today. Hydraulic presses are my second life. Dedicated to the forging cause of the Republic."

　　A few days ago, in the Model Worker Innovation Studio named after him, Liu Boming told reporters about his "craftsman" path: due to the constraints of forgings, the nuclear power projects that had been started in China at that time were seriously delayed, and the localization of nuclear power forgings was easier said than done.

The first big problem encountered is the conical cylinder.

　　The conical cylinder is the core component of the third-generation nuclear power equipment. Its shape is quite complex, like a "meter bucket" with a height of 2 meters and a width of more than 4 meters. What is even more difficult is its harsh technical indicators, such as taper, thickness, The ovality must be satisfied at the same time, not only to ensure the concentricity of the large and small circles of the cylinder, but also to not allow large ellipses. This is the most complex shape and the highest forging difficulty among the cylinder forgings. It is a forging level of manufacturing enterprises. And the severe test of extreme manufacturing capacity is also a production and operation difficulty that must be overcome in the process of localization of the third-generation million kilowatt nuclear power equipment.

There is no domestic precedent.

Liu Boming introduced product technology.

Photo by Wang Ning

　　This peculiar "Mi Dou" almost made Liu Boming "go crazy".

　　When he was at work, he was full of thoughts on the deformation process and process parameters of the forgings, and repeatedly discussed the latest plan ideas and improvement measures with the process technicians.

　　Back at home, Liu Boming found dough to repeatedly simulate the deformation of the conical cylinder, so as to realize the key points in the forging operation.

　　The hard work paid off. After a lot of preparation work, we finally found the key control points of the forging process of the conical cylinder in the special mandrel drawing, the special horse bar reaming lamination timing, etc., and put forward a more targeted The optimization scheme of cylinder elongation.

　　On the operating table, Liu Boming carefully observed the deformed material surface, changed the gesture of the commander, and firmly controlled every point.

The huge hammer head presses steadily and precisely controls the deformation of each thread of the conical cylinder... The first CAP1400 conical cylinder, the largest in China, was successfully forged at last!

　　With their wisdom and perseverance, they filled a gap in copy forging technology in my country's nuclear power equipment manufacturing, and thus reached another peak in the manufacture of international high-end forging products.

　　Talent is the first resource for innovation and development, especially hot processing needs "artisans".

　　Liu Boming said: "Hot processing is a collective operation, and the quality of our operation directly determines the quality of the product." Liu Boming pays attention to the "leadership" of young technicians, and takes out what he has learned without reservation to manufacture heavy equipment. to cultivate more outstanding talents.

Liu Boming introduced the product technology.

Photo by Wang Ning

　　He founded the Model Worker Innovation Studio, carried out activities such as "Model Workers Lecture Hall" and "Innovation Alliance Mutual Learning and Mutual Promotion", and taught "Practical Essentials of Super Large Forging Operation" and "Forging Quality Problems and Solutions" to employees and new technical school students. etc. course.

　　In recent years, the Model Worker Innovation Studio led by Liu Boming has overcome many difficulties in the forging process of super-large, super-difficult forgings and high-end nuclear power products, filled a number of domestic industry gaps, broke foreign monopoly, and won international discourse for my country in the field of super-large forgings. right.

　　Liu Boming has worked in the hydraulic press forging factory for 32 years. He has successively won the honorary titles of National Technical Expert, Special Allowance of the State Council, 2019 Great Country Craftsman of the Year, and National Labor Model.

"Liu Boming Model Worker Innovation Studio" was rated as "National Model Worker and Craftsman Talent Innovation Studio".

　　Liu Boming said: "Workers and I have witnessed the whole process of the localization and industrialization of the country's super-large forgings. Our spirit of pursuing excellence as craftsmen and dedication to the company's development will never change. In this prosperous night of thousands of miles, thousands of lights are on. In the middle, the flash is permeated with the firm belief of our first-level people and the loyalty of the industry to serve the country." (End)