基于配合辊系的楔形板矫直工艺

采用常规矫直辊系矫直楔形板严重降低了楔形板矫直范围和效率,为了提高楔形板矫直厚度范围和矫直质量,提出了一种基于配合辊系(大直径矫直辊系和小直径矫直辊系)的楔形板矫直方法。首先研究了配合辊系矫直机辊径、辊距与楔形板矫直效果的关系,设计了楔形板矫直机配合辊系,给出了矫直工艺方案;然后给出了配合辊系矫直楔形板的分区原则,基于有限元法建立了基于配合辊系的楔形板矫直过程有限元模型,仿真结果与实测结果一致,验证了有限元模型的正确性;最后对基于配合辊系的楔形板矫直过程进行仿真,计算了常规辊系和配合辊系下楔形板矫直力及残余应力,分析了不同板厚分区对楔形板矫直效果的影响,结果表明,配合辊系设计方案适合楔形板矫直过程且矫直效果较好。

Straightening process of longitude profiled plate based on matching straightening roller system

Applying the conventional straightening roller system in straightening the longitude profiled plate will severely reduce the straightening range and efficiency of the longitude profiled plate. In order to improve the thickness range and straightening quality of the longitude profiled plate，a longitude profiled plate straightening method based on a matching roller system method （large diameter straightening roller system and small diameter straightening roller system）was proposed. Firstly，the relationship between the roll diameter and the roll distance of the straightening machine based on the matching roller system was studied. The matching roller system of longitude profiled plate straightening machine was designed，the straightening technology of longitude profiled plate was proposed. Then，the partition principle of the longitude profiled plate with the matching roller straightening machine was studied. The finite element model of longitude profiled plate straightening process based on the matching roller system was established，and the simulation results were consistent with the measured results，which verified the correctness of the finite element model. Finally，the straightening process of the longitude profiled plate based on the matching roller system was simulated. The straightening force and residual stress of the longitude profiled plate under the conventional roller system and the matching roller system were calculated. The influence of different plate thickness partition on the straightening effect of the longitude profiled plate was analyzed. The results show that the designed matching roller system is suitable for the straightening of the longitude profiled plate and the straightening effect is better.