伍家杰

[摘    要]为消除容器拼缝棱角对卷板机进行改造。分析对三辊卷板机改造设计的相关内容，随后介绍钢板卷制圆筒时形成棱角的原因及圆筒拼缝的棱角对下工序的影响，提出有效消除棱角思路。阐述改进后四辊传动卷板机的相关情况，采用新设备后能够有效提升产品质量以及生产效率。

[关键词]圆筒卷制;消除棱角;四辊传动卷板校圆机

[中图分类号]TH49 [文献标志码]A [文章编号]2095–6487（2021）07–00–02

Discussion on the Improvement of Plate Bending Machine to Eliminate the Edge and Corner of Container Seam

Wu Jia-jie

[Abstract]This paper makes an in-depth study on the transformation of the plate bending machine to eliminate the edges and corners of the container seam. Firstly， it analyzes the relevant contents of the transformation design of the three roll plate bending machine， then introduces the causes of the edges and corners formed when the steel plate is rolled into the cylinder， and the influence of the edges and corners of the cylinder seam on the next process， and puts forward the effective ideas of eliminating the edges and corners， and finally expounds the relevant situation of the improved four roll drive plate bending machine， It is concluded that the new equipment can effectively improve the product quality and production efficiency. It can be seen that the improvement of the bending machine to eliminate the container splicing edges and corners has achieved good results.

[Keywords]cylinder rolling; Eliminate edges and corners; Four roll drive coiling machine

喷水式减温器是高温高压参数锅炉中的重要部件，减温器里面有一个由不锈钢钢板卷成的内圆筒。为有效防止高速的蒸汽流体通过内圆筒时遇阻，产生气流喘动，要求该圆筒的焊缝平滑，利于蒸汽可以顺畅流动。传统的钢板圆筒由三辊卷板機卷制，卷制完后拼缝需经过焊接和打磨，但是拼缝表面很难达到平整圆滑。原因是：圆筒校圆后，接口处会形成棱角，棱角会造成下道工序焊接缺陷问题。焊缝表面粗糙，普通打磨劳动强度大，很难达到匀称平滑的效果。卷板机生产厂家计划派给的任务：对现有三辊卷板机进行四辊卷板机的改造，以解决卷板的质量问题，达到消除拼缝棱角或减少棱角度的目的。

1 对三辊卷板机的改造设计

喷水式减温器内圆筒的材料为不锈钢薄板，板厚3 mm。其主要生产工序是：圆筒卷圆、圆筒纵缝焊接、圆筒对接组装、圆筒与圆筒环缝焊接。

1.1 钢板卷制圆筒时形成棱角的原因

（1）圆筒是用平直的钢板通过卷板机卷制而成，如果平钢板卷圆之前两端不预先弯曲，会造成卷圆后的圆筒接口处产生棱角超差。……