This article introduces the research work and related production experiences of 12t ultra-high pressure inner cylinder casting technology with nickel-based high-temperature alloy for coal-fired power generation units with high parameters.Based on the material characteristics of nickel-based high-temperature alloy and the structural characteristics of ultra-high pressure inner cylinder castings,MAGMA software is applied to carry out the simulation calculation of the coupling of filling,solidification,and stress fields.Combined with years of production and manufacturing experiences,a reasonable casting process plan is formulated.At present,the production of rough casting has been completed,and after testing the chemical composition,apparent quality,and size of the casting,it meets the relevant requirements,providing experiences for subsequent engineering manufacturing.
关键词
650℃超超临界/超高压内缸/铸造镍基高温合金/数值模拟
Key words
650℃ ultra-supercritical/ultra-high pressure inner cylinder/nickel-based high-temperature alloy for casting/numerical simulation
维普
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