棒线材连轧全部道次轧件尺寸预测通用模型  

A universal model for predicting rolled pieces dimension in all passes of continuous rolling for rod and wire

作　　者：王晓晨 刘洋洋 罗志俊 邸全康 晁月林 徐士新 WANG Xiao-chen;LIU Yang-yang;LUO Zhi-jun;DI Quan-kang;CHAO Yue-lin;XU Shi-xin(Research Institute of Technology,Shougang Group Co.,Ltd.,Beijing 100043,China)

机构地区：[1]首钢集团有限公司技术研究院,北京100043

出　　处：《中国冶金》2023年第2期129-134,共6页China Metallurgy

摘　　要：棒线材轧制的尺寸精度至关重要,但因轧制道次多、孔型内变形复杂,所以提高尺寸精度难度大。建立棒线材连轧过程全部道次轧件尺寸预测通用模型,为计算和预测棒线材轧制变形提供了高效的方法。分别预测了轧制φ9mm规格Q235和65Mn线材以及轧制φ40mm规格40Cr和20CrMnTi棒材全部道次的轧件尺寸,其中轧制参数按照模型推荐的全部道次压下量进行预测,最终预测成品尺寸的相对误差为-1.56%~0.78%,绝对误差为-0.14~0.07mm,预测精度满足目前钢铁企业实际生产的最高精度需求。该模型在计算不同类型生产线轧制的各类钢种时具有通用性,有较高的计算时效性,可作为棒线材轧制工艺数字化转型的基础模型。The dimensional accuracy of rod and wire rolling is very important,but it is difficult to improve because there are too many passes in rolling process and the deformation in the groove is too complex.A universal model for predicting rolled pieces dimension in all passes in the continuous rolling process of rod and wire was established,which provided an efficient method for calculating and predicting the rolling deformation.The dimensions of rolled pieces in all passes ofφ9mm Q235and 65Mn wires andφ40mm 40Cr and 20CrMnTi rods were predicted,respectively.The rolling parameters were predicted according to the reduction of all passes recommended by this model.The relative error of dimensions for final predicted finished product is-1.56%-0.78%,and the absolute error is-0.14-0.07mm.The prediction accuracy meets the highest accuracy requirements of the actual production in iron and steel enterprises.This model is universal in calculating various steel grades rolled by different types of production lines,and has high calculation timeliness.It can be used as basic model for the digital transformation of rod and wire rolling process.

关 键 词：棒线材 孔型 连轧道次 轧制宽展 轧件尺寸 迭代计算 

分 类 号：TG335[金属学及工艺—金属压力加工]