H型钢断面组织对其机械性能的影响

H型钢因其断面异型，轧制变形时金属流动性大，断面温度分布不均匀使得其断面组织均匀性很难得到控制。在建筑工程中H型钢的广泛应用，使得对产品的形状、尺寸精度和机械性能要求日益严格。在金属的塑性变形过程中，微观组织的演变对金属的机械性能有着很大的影响。为了研究组织对机械性能的影响，对产品的机械性能进行的拉伸实验并对组织性能进行了观测，分析了组织对机械性能的影响。并对轧制规程进行优化。

H-beam Sectional Structure Influence on Mechamical Property

It is difficult to control structural homogenity of H-beam,because of the special section, the metal flowing power is big and the section temperature is uneven. It is expanding strict to the shape of H-beam , dimensional precision and mechanical behaviour. In the process of the metal plastic deform, microstructure transmutation is great effect on the mechanical property. In order to analyse the effect of microstructure on the mechanical property, the tension test is operated and the microstructure effect on the mechanical property is analysed, the rolling rules is optimized.