China has become a major global equipment manufacturing country, and its level of autonomy has improved
On August 2, CRCC Heavy Equipment Base was completed and put into operation in Xiangyang, Hubei Province. The picture shows a 900 ton beam carrier in production. On July 28, the cold leg bend of the main pipe of Unit 1 of Sanmen Nuclear Power Station, the world's first third-generation AP1000 nuclear power plant, completed the bending forming process in the hydraulic locomotive workshop of China Erzhong Forging Branch, marking that Erzhong has mastered the most difficult bending forming core technology in the manufacturing process of the cold leg bend of AP1000.
Current market situation and development demand of China's forging industry
In recent years, the production of large forgings in China has made great progress, reaching a certain scale and level of production, but the process, equipment and management still cannot meet the needs of the market. The Chinese die forging industry is still dominated by old-fashioned forging hammers and double disk friction presses, which still has a large gap compared with the developed countries in the world. It is far from meeting the needs of the domestic and foreign forging markets, and it is in urgent need of transformation and improvement. So far, only about 150 hot die forging press production lines have been built, and hot precision forging, warm forging and cold forging production processes have been developed.
Create an ecosystem of global construction machinery industry chain
Today, the 2021 Changsha International Construction Machinery Exhibition, a grand event in the construction machinery industry that has attracted worldwide attention, has been launched. The 2020 Changsha International Construction Machinery Aftermarket Trade Conference (hereinafter referred to as "Aftermarket Trade Conference"), one of the supporting activities, also opened at the Changsha International Exhibition Center.
Process method of precision forging
At present, many precision forging processes have been used in production. According to different forming temperatures, it can be divided into hot precision forging, cold precision forging, warm precision forging, composite precision forging, isothermal precision forging, etc.
Precision forging refers to the forming technology that only needs a small amount of processing or no more processing to meet the requirements of parts after forging. Precision forging is an important part of advanced manufacturing technology, and also a widely used part manufacturing process in automobile, mining, energy, construction, aviation, aerospace, weapons and other industries. Precision forging not only saves materials and energy, reduces processing procedures and equipment, but also significantly improves productivity and product quality, reduces production costs, thus improving the market competitiveness of products.