The reporter learned from the Propaganda Department of Jiu Steel Group on August 2 that Gansu's first 3D printing intelligent casting project has landed in Jiu Steel Group Western Heavy Industry Company. The project is aimed at high-end casting markets such as nuclear power, hydropower, special vehicles, and aviation. Through the integration of new process equipment with digital and intelligent systems, the project will help transform traditional foundry factories into "green and smart" factories.

Casting is the basic industry of the equipment manufacturing industry. Compared with the "silly big black rough" traditional casting, 3D printing technology has turned the foundry industry into a "slender lady". It can quickly transform from a CAD three-dimensional model to a three-dimensional solid model, which is especially suitable for the manufacture of complex parts with fine internal structures.

"Only a programmer needs to input the parameters into the computer, and the sander will start operating under instructions. After 2000-2500 layers of stacking, a 1-meter-high product can be printed within 13-15 hours." West Su Wen, secretary of the Party branch and factory director of the Precision Casting Branch of the Heavy Industry Company, said that the printed products have high dimensional accuracy, short casting cycles, and high integration, and the added value of the products has increased by more than 50%. The thermal regeneration recycling sand treatment process can also achieve zero discharge of solid waste from foundry sand.

"As soon as the 3D printing green intelligent casting project was put into production, it attracted well-known enterprises from Tianjin, Xi'an, and Chengdu. At present, it has signed agreements with users for high-precision precision casting products such as high-end stainless steel, high-performance ductile iron, aluminum-magnesium alloy, etc. Supply contract. Follow-up products will be more used in nuclear power, hydropower, electric power, automobile manufacturing and other industries." The company's relevant person in charge said.

According to reports, Jiugang's 3D sand mold printing intelligent casting factory plans to realize the cluster production of 3 3D printers, with an annual output of 1,000 tons of 3D printed castings, an annual output of 2,000 tons of precision casting products, and product sales revenue of more than 50 million yuan.