论文部分内容阅读
球化处理后的铸铁中的石墨,其球化程度的定量估计可作为球化处理合适与否的判据。用得最广泛的是形状的无量纲二维因子Φ和紧密度ΦK:Φ=3.545 F~(1/2)/P;ΦK=F/F_0式中:F、P 一石墨截面的面积和周长;F_0一以石墨截面最大线尺寸为直径的园的面积。所以,Φ表示图形有多大部分的周长可以围成一个与图形大小相同的圆,而紧密度ΦK 的二维因子则
The quantitative estimation of the degree of spheroidization of graphite in the cast iron after spheroidization can be used as a criterion for the proper treatment of spheroidization. The most widely used form factor is the dimensionless two-dimensional factor Φ and the compactness ΦK: Φ = 3.545 F 1/2 (1/2) / P; ΦK = F / F_0 where F and P are the areas and cycles of the graphite cross section Length; F_0 a graphite section of the largest line size of the diameter of the park area. Therefore, Φ indicates how much of the perimeter of the graph can enclose a circle of the same size as the graph, and the two-dimensional factor of ΦK