With the dream of “aerospace power”, we constantly challenge the high “precision” and “difficulty” of major aerospace equipment, and break the world record four times in the development and production of high-tech cutting-edge aluminum alloy materials, and continuously achieve innovative breakthroughs in serving national strategies and conquering more key “aluminum”! He is Chen Rengui, currently the vice chairman (and) of Guangxi Nanning Federation of Trade Unions, the manager of the fusion and casting manufacturing center of Guangxi Nannan Aluminum Processing Co., Ltd., and the leader of the national skill master studio.
Due to his outstanding performance, Chen Rengui was selected as the target of cultivating craftsmen in 2024. He has won honors such as national technical expert, expert in government special allowances from the State Council, and national Chen Rengui Skill Master Studio. With his solid and powerful actions, he has made important contributions to the continuous advancement of my country's dream of a strong aerospace country. On the eve of May Fourth this year, he was awarded the “Youth Pioneer in the New Era” awarded by the Central Committee of the Communist Youth League and the All-China Youth Federation.
Only by working hard and doing things alone can you master exquisite skills. Only by pursuing the ultimate craftsmanship can one show the true nature of a great country's craftsman. Aerospace equipment is a national weapon that demonstrates the strength of aerospace power and boosts national morale. As the target of cultivating craftsmen in a great country, Chen Rengui is responsible for the mission of “melting high-end aluminum materials and casting heavy weapons of a great country”. He led the team to climb the top and innovative breakthroughs in the high-end aluminum alloy materials track of aerospace with meticulousness of “not daring to be at slightest” and the outstanding pursuit of “multiple millions of hammering into one weapon”. Faced with the global problems that foreign experts cannot solve, he was in mind that “the biggest thing in the country” and resolutely “fighted” with super-large-specific flat ingots. After more than 700 tests, he studied and solved the problems of efficient purification, casting molding, and efficient degassing and slag removal in the melting and casting of high-clean aluminum alloy melts (incitons). He won the “crown jewel” in the field of aluminum alloy materials, and casted one of the most difficult aluminum alloys recognized in the industry – the world's largest 7050 aluminum alloy flat ingot. The performance indicators reached the international advanced level, making important contributions to ensuring the research and production of major aviation equipment in my country.
Faced with the urgent need for the development of super-large-spec aircraft skin panels, Chen Rengui proposed a crystallizer enhanced cooling casting method, and successfully cast Asia's first wider super-large-spec aircraft skin panel hard alloy flat ingot for the market, breaking the Asian record and making the company the first and only company in Asia to have aviation flat ingot casting technology for aircraft skin panels with a width of 2680mm.
In the development of commercial launch vehicle plates, Chen Rengui worked on the preparation technology of 2219 ultra-wide panels, proposed the soft casting method of hard aluminum alloy, and successfully cast the world's largest specification 2219 flat ingot for aerospace, with a yield rate increased by 26.1 percentage points and an efficiency increased by 2.36 times. The overall technical indicators of the plates reached the international advanced level.
Faced with the technical problems of key materials for airborne forgings, Chen Rengui proposed a double drainage and level-by-step uniform cooling casting method, and successfully cast 7085 hard aluminum alloy flat ingots and 7085 large-scale hard aluminum alloy round ingots, solving the problem of supplying key materials and providing strong support for my country's aerospace industry.
In recent years, Chen Rengui has participated in 12 national and provincial projects and has been authorized to 8 invention patents. He has continuously broken through the limits of casting operation and proposed a series of operating methods that have achieved success in many worlds or China's best, making significant contributions to improving the overall level of my country's aluminum processing industry and promoting the development of my country's aerospace.
While “taking the pulse and prescription” for the problem of aluminum alloy casting, Chen Rengui knew very well that it was necessary to inherit and continue innovation. The national-level Chen Rengui Skill Master Studio he established has saved 51.92 million yuan in production costs for the enterprise through technological innovation within five years, and has trained 2 special chief technicians and 52 senior technicians and 52 technicians in Nanning City. His disciple Lei Yijun won honorary titles such as Guangxi Model Labor, Guangxi May 1st Labor Medal, and Guangxi Craftsman. He took the lead in formulating the “Aluminum and Aluminum Alloy Casting Skill Level Certification Standards”, undertakes the assessment and evaluation of the professional skills level certification of skilled talents, cultivates a large number of high-skilled talents, provides strong support for the country to build an independent and controllable advanced manufacturing system, and bravely shoulders the responsibility and mission of casting heavy weapons of a major country.
source:”China Youth Daily (2025-05-14 Edition 01)
Author: Yang Baoguang, reporter of China Youth Daily and China Youth Network
Editor丨Jin Fangming