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Analysis of precision requirements for auto parts

Posted by: AutoMotive 2021-10-20 Comments Off on Analysis of precision requirements for auto parts

With the trend of lightweight automotive products, the continuous improvement of component precision, performance and quality requirements will surely give the automotive industry a broader and higher connotation. For more than 40 years, the casting production of China’s automobile industry has grown from scratch. From small to large, process and equipment as well as production management have undergone major changes. Fully introduced the automobile manufacturing technology and equipment of the former Soviet Union, and built China’s first automobile production base? One** automobile factory; by the end of the 1960s, self-reliant, built the second automobile factory in the way of “gathering treasures”; up to now The formation of a modern car production base in China has enabled the casting production of China’s automobile industry to continuously enrich and develop by leaps and bounds. From the ordinary shock modeling in the 1950s to the high-pressure modeling in the 1960s, to the application of air impact modeling technology in the 1980s.

The core-making process has developed from the oil sand core in the early days of the founding of the People’s Republic of China to the hot core box and shell core, to the current cold core box core-making process. In addition, large-scale hot-air dust removal cupolas, large-scale power-frequency insulation electric furnaces, automatic pouring and falling sand cleaning equipment, and large-scale high-efficiency automatic sand processing equipment have all been developed and applied. In short, new processes, new materials, new equipment and new technologies The continuous adoption, especially the application of robots, electronic computers and advanced detection and control methods, has brought a new situation and higher economic benefits to the large-scale specialized casting production of China’s automobile industry. The start of foundry production and technology in the automotive industry. After the founding of the People’s Republic of China, the foundry production of China’s automobile industry has developed rapidly. Especially in the early 1950s, the demand for auto parts increased greatly, which promoted the development of auto parts production. The Guiyang Auto Repair Factory, established in 1952, used manual centrifugal casting of babbitt bearing bushes and centrifugal casting of hot-forged blanks to produce flanged bushes; by 1956, the annual output had reached more than 600,000 pieces.

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