  Recently, the National Standard Parts Product Quality Supervision and Inspection Center and China Commercial Aircraft Co., Ltd. signed the "Technical Appraisal Agreement" and the "Inspection and Testing Contract" to undertake quality inspection tasks for the C919 large passenger aircraft standard parts. This marks that the central inspection business has entered the high-end field of aviation after nuclear power and wind power.
Established by the State Council, China Commercial Aircraft Corporation is the main body for the implementation of the national large passenger aircraft project and the main carrier for the industrialization of our national aircraft. The major special project of large aircraft is the important strategic decision of the Party Central Committee and the State Council to build an innovative country, improve China's independent innovation capability and enhance the country's core competitiveness. It is determined by the National Medium- and Long-Term Science and Technology Development Plan (2006-2020). One of the major special projects. The aviation standard parts undertaken by the center are used as the aircraft assembly connection method, and its quality directly affects the fatigue resistance and reliability of the aircraft structure. Therefore, its quality inspection is also extremely critical and important.
Due to the particularity of the standard parts of the aircraft, the standard parts for aviation are different from the conventional testing of the standard parts. The inspection items such as dimensional inspection, tensile strength, shear strength, grain flow line and grinding burn have their own. Specialized standards. In order to ensure the smooth implementation of the high-lock bolt inspection task, the center has set up an inspection and testing team led by a senior engineer to interpret the aviation testing standards, develop the testing specifications, and design and develop according to the shape characteristics of the high-lock bolts. Special tooling fixtures. At the same time, the center also successfully passed the inspection outline of the company.
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