建筑用全硬彩涂薄宽钢板是一种具有高附加值和高技术含量的高等级冷轧板带产品，但其在热镀锌工序中的板形控制是一个生产技术难题。通过对全硬钢的力学性能的测定和拉矫变形行为的有限元仿真，发现屈服应力大、屈强比高以及断裂时塑性延伸小等特性是造成镀锌后全硬带钢拉矫困难和板形难以控制的根本原因。基于仿真分析和现场调试，提出了针对全硬钢生产的包括拉矫参数设定的全套工艺对策，取得了良好的效果，可以稳定生产多种宽度和厚度规格的全硬彩涂钢板。
As a product with high added value, the full hard(FH) strip is mainly used for building and its shape control is a difficult problem in hotdip galvanizing. By mechanical test of the steel strip and simulation of strip deformation in tension leveling using finite element method, characteristic features of the strip were obtained, such as; high yield stress, high yield ratio and low plastic elongation as the basic reason of difficulty in tension leveling and shape control. Based on simulation results and debugging of process parameters on site, full set of technical measures including optimum tension leveling parameters for FH product were put forward, and good effect of strip shape control was obtained.Varieties of color coated hard full strip are steady produced.
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