The scrap resource and its quality conditions are analyzed and way to improve the scrap quality analyzed and technologies to remove the harmful element from the ferrous scrap introduced.

分析了废钢资源及废钢质量的状况，提出了改善废钢质量途径，介绍了国内外去除废钢中有害元素的研究现状。

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The shredding process of steel scrap was simulated through FEM software ANSYS/LS-DYNA based on Nolinear finite element method. The simulating results that steel scrap is shredded are acquired.

利用非线性有限元法，以ANSYS/LS-DYNA为工具，对不同锤头形状、不同锤重、不同锤击速度的回收钢破碎过程进行了计算机数值仿真，得出了回收钢最佳破碎速度的结论。

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