On October 24, 2018, Mr. Xing Ji, the chief engineer of the "Hualong One" project of China Nuclear Power Engineering Co., Ltd., and Mr. Ouyang Lihua, the deputy chief engineer, together with Mr. Zong Yueliang, the deputy general manager of the Procurement Center, Mr. Chen Rijiang, the deputy director of the Instrumentation and Control Design Institute, Mr. Liu Tianbin, the deputy director of the Nuclear Equipment Institute, Mr. Li Xin, the deputy director of the Contract Execution Department of the Procurement Center, Mr. Zhang Cheng, the deputy director of the Business and Contract Department of the Procurement Center, Mr. Guo Lin, the deputy director of the Mechanical II Department of the Procurement Center, Mr. Xu Xiaodong, the project leader, Mr. Yang Weitao, the project leader, Mr. Hu Dongbo, the deputy director of the Procurement I Department of the Procurement Center, Mr. Wang Xiang, the engineer, Mr. Tu Xinshi, the deputy director of the Price Audit Section of the Supervision and Audit Department, Mr. Bai Xinpeng, the team leader of the Mechanical Team of the Fuqing Project Commissioning Department, Mr. Wang Yabin, the engineer of the Fuqing Project Commissioning Department, Mr. Fang Xiaolu, the engineer of the Instrumentation and Control Design Institute, and Mr. Huang Zongren, the deputy director of the Project Department of the Research and Design Institute of China Nuclear Power Engineering Co., Ltd., and other experts, conducted the factory acceptance of the domestically produced reactor pressure vessel overall bolt tensioning machine designed and manufactured by Raymon Cyber Electromechanical Technology Co., Ltd. 

At the acceptance meeting, China Nuclear Power Engineering Co., Ltd. witnessed the functional and performance tests of the overall bolt tensioning machine for the reactor pressure vessel, including high-speed insertion/rotation tests of nuclear-grade product bolts, comparison tests of insertion/rotation of nuclear-grade product bolts and simulated test bolts, limit pressure tests of the tensioning machine, automatic centering tests of the tensioning machine, automatic level adjustment tests of the tensioning machine, performance tests of the main bolt and main nut cleaning machine, performance tests of the threaded hole cleaning machine, etc. It was confirmed that the technical indicators fully met the requirements of the specification. In addition, detailed inspections were conducted on the hardware interface, size compliance, quantity of equipment, spare parts and special tools, brand of purchased parts, equipment quality certificates, process documents, completion documents, and personnel qualifications of the overall bolt tensioning machine and related equipment. 

The participants engaged in thorough communication and heated discussions. The acceptance experts reached a consensus. The project lasted for four years. After going through multiple checks and providing adequate guarantees, the equipment was finally declared to be qualified for acceptance. 

The joint research project of China Nuclear Engineering Co., Ltd. and Raymon Cyber Electromechanical Technology Co., Ltd. for the reactor pressure vessel overall bolt tensioning machine, main bolt main nut cleaning machine, and thread hole cleaning machine of Units 5 and 6 of the Fuzhou Fuqing Nuclear Power Project (Hualong One) has successfully passed the factory acceptance inspection. This marks that the "Hualong One" reactor pressure vessel overall bolt tensioning machine, with complete independent intellectual property rights of China, has completed the transformation from an engineering machine to an actual machine and fully meets the requirements of engineering applications. This is a solid step forward for the "Hualong One" overall bolt tensioning machine after the successful completion of the prototype verification, and it also provides strong support and guarantee for the domestic production and engineering application of key supporting equipment for the "Hualong One" units. It has filled an important and vivid chapter in the improvement of the domestication rate in the nuclear power field.