Recently, China's large-scale ring forging manufacturer SDYL Elite has successfully created a "large-scale rotary forming kiln forging for 10,000-ton rotary kiln" for ThyssenKrupp. The forging is made of 28Mn6, has a diameter of nearly 7.4 meters and weighs 185 tons.
At the product appraisal meeting, the participating experts questioned and discussed the economic benefits and development prospects brought about by the basic data of inspection and testing, the grading construction process, and the performance improvement, and agreed that the project filled the extra large size of the 10,000-ton rotary kiln Constructing an international blank for forming wheel forgings, the performance of wheel forgings has reached the international advanced level of similar products.
The belt forging adopts the "metal construction forming + near net shape rolling to forging instead of casting" scheme, which can make the product performance stronger and longer life, effectively help the end customer to reduce the frequency of maintenance and improve economic efficiency.
The metal structure forming technology was first proposed by the academician Li Yiyi team of the Institute of Metals, Chinese Academy of Sciences, which can effectively avoid the adverse effects of the segregation of chemical elements present in traditional cast steel ingots, making the tires more homogeneous, and the mechanical properties of each part remain consistent and excellent. In addition, compared with traditional steel ingots, the construction of steel billets can also reduce material and energy consumption.
Adopting "near net shape rolling and forging instead of casting" can effectively avoid defects such as loose internal structure, porosity and segregation of the internal belt, making the internal structure of the tire belt denser, finer grains, more complete streamline, and overall product performance more reliable.
At present, more and more well-known domestic and foreign heavy equipment manufacturers have chosen to use forged wheels. The technology of "metal structure forming + near net shape rolling and forging instead of casting" has also been successfully applied to my country's nuclear power support rings, cocks and pressure vessel barrel joints.