The loaded cargo is one of the 5-meter-wide rolling mill frame manufactured by China First Heavy Machinery Group Co., Ltd. for Anshan Iron and Steel Group Co., Ltd. The frame is 15.2 meters long, 4.67 meters wide and 2.25 meters thick, weighing 405. Tons is the largest steel rolling frame in China. The rolling frame is mainly used for the production of rolling large-sized components and extra-large diameter oil pipelines, and is a major equipment required for national key construction projects.
At 9 o'clock in the morning, the eight employees of the crane factory of Qiqi Company and the operators of the China Railway Special Freight Transportation Center carried out various preparatory work before loading under the specific guidance of the technical staff of Qiqi Company. The technicians of the Academy of Iron and Steel Institute are preparing for the relevant tests. At 11:20 am, the loading preparations are all over.
At 13:40 pm, in the quiet factory building, with the commander’s whistle, the two cranes tightened the eight wire ropes with thick bowls, and slowly pulled up the rack and load beam with a total weight of 410 tons. It rises to a height of 10 meters and moves parallel to the side of the D45 450-ton drop-down car. The giant beam is accurately sent to the middle of the side bolster. The 450-ton drop-down car carries a 410-ton rolling frame. Stand steadily on the rails. Through the test of the size of the cart and the data of various stress points and indicators by the technicians of Qiqi Company and the Institute of Iron and Steel, the indicators meet the design requirements and meet the requirements for the main line transportation of special goods.
On August 31, at 9:28 am, Yizhong Group Company solemnly held the first operation launching ceremony of the D45 450-ton drop-down car.
In his speech, Lin Yulong, deputy director of the Economic Development Bureau of the National Development and Reform Commission, thanked Qiqi Company for providing excellent transportation equipment for China Railway special long-term cargo transportation and made outstanding contributions to the national economic construction.
Xiao Degui, deputy general manager of China Railway Special Freight Company of the Ministry of Railways, wished that the D45 type drop-off car was successfully transported for the first time.
At 9:48, with a whistle, the D45 450-ton drop-off car embarked on the first journey of operation.
The D45 450-ton drop-down car was developed in response to the rapid development of China's national economy and the needs of the state's key construction projects. The size of the drop hole of the car is 16.1 meters, the maximum width is 2.35 meters, and the deadweight tonnage is 450 tons. It is the world's largest special truck with the largest weight drop in the hole, and its various indicators have reached the leading level at home and abroad.
1. Technology: die casting, die cast, machining.
2. Material: aluminum, adc 12, a 380
3. Surface treatment: blasting
4. Application: auto parts, mobile lift, rim, frame
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