在n_2气下对配合的菱铁矿、高岭石、白云石、方解石、石英五元混合矿物的组成进行了分析。

The composition analysis of five-component mixed minerals of siderite, kaolinite, dolomite, calcite and quartz has been analyzed inN_2.

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通过有限元模拟分析和工业试验相结合研究了圆坯和方坯在菱方孔型中的变形规律，对比了方坯进菱孔和圆坯进菱孔轧制时的变形特点。

FEM and industrial rolling test are used to study the deformation behavior of square billet and round billet in diamond and square passes. The deformation for different rolling processes is compared.

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