通过研究轧机联轴器主传动轴的装焊工艺,总结出一套对于多段拼焊的细长空心轴通过焊接坡口形式的确定、焊前粗调、精调方法以及焊接工艺参数合理设定,最终通过焊接来保证同轴度的装焊工艺方案。该制作方案对类似产品的制作提供了良好的技术借鉴,值得推广应用。 By studying the welding process of the main drive shaft of the rolling mill coupling, a set of slender hollow shafts for multi-section welding are concluded through the determination of the welding groove form, the pre-welding coarse adjustment, the fine adjustment method and the welding process parameters , And finally by welding to ensure the coaxial welding process package. The production program provides a good technical reference for the production of similar products, which is worth popularizing and applying.