连退机组焊机焊缝厚度预报模型及其影响因素

Prediction model of welding seam thickness and its influencing factors for welding machine with continuous annealing unit

针对以往现场对焊接工艺的研究偏重于焊接电流、焊接热量的计算以及焊接原理的分析,而对焊缝厚度方面的研究则偏少,造成了焊缝质量控制不利的问题。在充分考虑了连退焊接机组的设备与工艺特点后,对焊缝厚度与搭接量、碾压轮压力、焊接电流、焊轮压力以及焊接速度等焊接工艺参数之间关系进行了分析,并建立了一套适合于连退焊接机组的焊缝厚度预报模型,给出了相应的模型特征参数计算方法。同时以某1 550连退焊机的典型规格产品为例,利用所建模型定量分析了焊缝厚度的影响因素,并将其应用到生产实践,取得了良好的使用效果,具有进一步推广应用的价值。

In the past,the research on the welding process in the past focused on the calculation of welding current,welding heat,and the analysis of welding principles,while the research on the thickness of the weld was too little,which caused the problem of unfavorable quality control of the weld.After fully considering the equipment and process characteristics of the continuous retreat welding unit,the relationship between the welding seam thickness and the amount of overlap was analyzed,the pressure of the rolling wheel,the welding current,the pressure of the welding wheel,and the welding speed.A set of weld thickness prediction models suitable for continuous retreat welding units is established,and the corresponding model characteristic parameter calculation methods are given.At the same time,taking a typical product of a 1 550 continuous de-welding machine as an example,the influencing factors of weld thickness are quantitatively analyzed using the built model and applying it to production practice,which has achieved good results and has the value of further popularization and application.