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生产中发现原本板形良好的镀锌后带钢,经过卷取成卷运至下道工序(彩涂)再开卷后,带钢边部出现了严重的密集边浪,使带钢因无法涂层而成废次品.通过现场实测分析和运用逐层迭代法对卷取过程中带钢弹性变形行为解析求解,以及定量研究钢卷卷取层数、卷取张力、带钢厚度和板廓负凸度等因素对带钢在卷取状态下的应力场和位移场的影响,揭示出产生这一现象的力学背景.以解析分析结果和现场实测结果为依据,提出了卷取工艺参数的改进方案并投入生产使用,彻底消除了卷取过程产生的带钢边部板形缺陷,使机组的产品板形质量和成材率明显提高.
Found in the production of the original sheet metal galvanized strip, after winding into the coil shipped to the next process (color coated) and then uncoiled, the strip edge of a serious intensive edge waves, so that the strip can not be coated Layer and made of waste products.Through the field measurement analysis and the use of layer by layer iterative method for analysis of elastic deformation behavior of the strip during the coiling process and to quantitatively study the number of coiling layers, coiling tension, strip thickness and profile Negative crown and other factors on the stress field and displacement field of the strip in the coiled state, revealing the mechanics background of this phenomenon.According to the analysis results and the field measurement results, the paper proposed the parameters of the coiling process Improve the program and put into production and use, eliminating the strip side of the strip produced during the winding process defects, so that product quality and finished product significantly improve the quality of the unit.