Niobium Ingot,Niobium Sheet,Niobium Tube Baoji Yongshengtai Titanium Industry Co., Ltd. , https://www.bjystititanium.com Core Tip: And a typical representative of many people's minds – such as Boeing 777 that can fly across the ocean from China to the US (depending on the sub-model, the maximum takeoff weight is 230-263 tons, the range is higher than 7000 km), Europe is empty. Compared with the passenger A340 (maximum take-off weight of 253.5 tons - 380 tons, the range is more than 13,000 kilometers), the tonnage and size are still much smaller. Corresponding to the Boeing 777 and other models, it is China's future C929 passenger aircraft, and is still in the initial design stage.
In Yantai, there is a company called Oriental Blue Sky Titanium Technology (hereinafter referred to as "Titanium Technology"). Titanium alloy fasteners for the C919 large passenger aircraft are mainly used for fastening and connecting the main bearing truss of the aircraft, which can greatly reduce the structural weight of the aircraft, improve flight performance and reduce the cost of use.
At the beginning of the establishment of Titanium Technology, it undertook the localization project of titanium alloy fasteners for C919 large passenger aircraft. Under the strong support of the two levels of government of Yantai City and the High-tech Zone Management Committee, under the guidance of aerospace science and technology group companies, five institutes and many experts in the industry, the relevant technical personnel of Titanium Science and Technology Organization carefully studied the standards and identified the process. Key technical difficulties, set up a research research team.
Titanium Technology has continuously broken through the technical difficulties of titanium alloy fasteners in more than one year. In January 2013, it became the first fastener manufacturer to obtain the C919 airworthiness approval label, and became the first to enter in the same year. China Commercial Aircraft QPL domestic main bearing fastener manufacturer, with the heart of science and technology to the country's heart, to help China's big plane to fly the blue sky dream step by step to the reality.
Previously, it was reported that the first commercial large aircraft C919 requires 1.09 million standard parts for a single machine. Among them, about 200,000 pieces of titanium alloy parts are needed, which means that Yantai will provide nearly 20% of standard parts for domestic large aircraft. .
The domestic large aircraft uses "Jinan eyes"
The first ceremony of the launch of the domestic C919 large passenger aircraft radome was held on the Christmas Eve of December 24, 2011, at the production site of the Sixty-seventh Research Institute of Jinan, and will be equipped with “Jinan Eyes†for large domestic aircraft. And the Sixty-seventh Research Institute of AVIC in Jinan is also one of the nine major supplier of C919 large passenger aircraft project, and the only supplier in the province for the C919 large passenger aircraft project. In addition, the National Supercomputer Jinan Center also provides high-performance computing services for the domestic large aircraft C919.
How significant is the significance of China's big planes going offline?
On November 2nd, China's self-developed C919 large passenger aircraft first aircraft was officially launched in the Pudong base plant of China Commercial Aircraft Corporation's newly built assembly center. This not only marks the official completion of the large-section docking and airborne system installation of the C919's first aircraft, but has already reached the stage where ground testing is possible. It also marks the phased achievement of the development of the C919 large passenger aircraft project. The first flight has laid a solid foundation.
Although the total number of unsold flights has reached 517
As of now, the C919 has received 517 orders from 21 buyers.
At present, 7 domestic airlines have ordered a total of 135 C919s.
At the Paris Air Show on June 15 this year, Germany Purin Airlines and China Commercial Aircraft signed an agreement on the purchase of seven C919 large passenger aircraft and seven ARJ21.
At the Beijing Air Show on September 16 this year, Thai Metropolitan Airlines signed a memorandum of understanding on the purchase/lease cooperation of 10 C919 large passenger aircraft and 10 ARJ21-700 aircraft with China Commercial Aircraft and ICBC Leasing.
In addition, there are 12 C918 domestic and foreign financial leasing companies, with 365 orders.
Therefore, it won't take long. When you are waiting at a foreign airport, you can point to the "small cockroaches" on the stop screen and say to others: Hey! This big plane is made in China!
What is the technical content of China's large aircraft?
The C919 large passenger aircraft is a landmark project for the construction of an innovative country with complete independent intellectual property rights. For advanced aerodynamic layout, structural materials and airborne systems, the developers have planned 102 key technical challenges, including aircraft engine integration design, fly-by-wire control system control law design, and active control technology. For the first time, advanced materials were applied on a large scale in domestic civil aircraft. The third-generation aluminum-lithium alloy materials and advanced composite materials used in the C919 body structure reached 8.8% and 12% respectively.
The new technologies, new materials and new processes adopted by the C919 large passenger aircraft have an important driving effect on China's economic and technological development, the progress of basic disciplines and the development of the aviation industry. As a co-ordinated development of China's mainline aircraft and regional aircraft, China Commercial Aircraft Co., Ltd. adheres to the "main manufacturer-supplier" development model, and takes the nation's strength to gather the wisdom of the world and build a "life community" for the civil aircraft industry. China Commercial Aircraft Corporation is the core of the China Civil Aviation Industry System, which is integrated with China Aviation Industry and radiates across the country and faces the world.
Domineering! In the province, hundreds of thousands of people participated in the development
According to statistics, there are 22 provinces, more than 200 enterprises, 36 colleges and universities, and hundreds of thousands of industrial personnel participating in the development of the C919 large passenger aircraft. 16 material manufacturers including 5 Baosteel and 5 standard parts manufacturers have become large passenger aircraft. The supplier or potential supplier of the project.
At the same time that China Commercial Aircraft selected 16 multinational companies as suppliers of large passenger aircraft airborne systems, it promoted cooperation between international suppliers and domestic enterprises, and established airborne systems such as avionics, flight control, power, fuel and landing gear. The 16 joint ventures have improved the overall level of R&D and manufacturing of the national machine industry through technology transfer, diffusion and spillover, and upgraded the domestic energy level of the civil aircraft industry.
The first flight of 2016 is not far away!
Jin Zhuanglong, chairman of China Commercial Aircraft Corporation, said that according to the planning of the development stage of the project, the C919 large passenger aircraft project will carry out the test of aeronautical power, flight control, hydraulic and other systems, airborne system integration test and full-machine static test; As a flight test aircraft, the aircraft needs to complete system commissioning, flight test equipment and instrument installation before the first flight. It is scheduled to fly in 2016.
Compared with Boeing Airbus?
And a typical representative of many people's minds - such as the Boeing 777 that can fly across the ocean from China to the United States (depending on the sub-model, the maximum take-off weight is 230-263 tons, the range is higher than 7000 kilometers), the European Airbus A340 ( The maximum take-off weight is 253.5 tons - 380 tons, and the range is more than 13,000 kilometers. The tonnage and size are still much smaller. Corresponding to the Boeing 777 and other models, it is China's future C929 passenger aircraft, and is still in the initial design stage.
However, the success of the C919 is still worthy of our pride. In the development history of China's aviation industry, the main passenger aircraft developed is the Xinzhou 60 series light passenger aircraft based on the Yun 7 platform. The maximum takeoff weight is 21.8 tons and the range is 1600 kilometers. The newly designed ARJ-21 passenger aircraft has a maximum takeoff weight of 40.5. Tons, the range is 2,225 kilometers. Compared with them, C919 is the largest passenger aircraft with practical value in China; its successful downline is an important breakthrough in the history of passenger aircraft development in China.
Look, big plane, two standard parts "Yantai made"
"Yantai made" on the big plane