Based on the experiments of shot peening to some specimens, the paper makes an approach to strengthening mechanism and fatigue resistance technology for nodular cast iron.
对试样进行了喷丸处理，进而探讨了球铁材料的强化机制和抗疲劳技术。
Cast iron castings to dig the platform side of one side of the work, rust-removing rust-removing form have artificial rust-removing and rust-removing is shot.
铸铁平台的铸件要一边挖一边进行清砂的工作，清砂形式有人工清砂及抛丸清砂。
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