阅读说明：本技术 一种大型钢制扬克烘缸的制造方法 (Manufacturing method of large steel Yankee drying cylinder ) 是由 何维忠 吴匡蓝 杨可 刘志平 刘思沾 林双平 何泽立 成先明 于 2021-07-19 设计创作，主要内容包括：本发明属于造纸烘缸技术领域,具体的说是一种大型钢制扬克烘缸的制造方法,切割厚钢板下料缸体板、缸盖板和中心固定器板,缸盖板预开人孔；圆钢下料,锻车组合制造轴头；将缸体板和中心固定器板卷制成圆筒形；将卷制钢筒接头处焊接起来；将两片半圆环形缸盖板对接制成圆环形缸盖；中间固定器连接耐磨处理过的轴头制成芯轴；削去焊接余高并加工导流槽；在缸盖外表面钻出螺纹沉孔；将缸盖组对焊接在缸体两侧,随后再次机加工缸体,削去环形焊缝余高,冷却后施加螺栓固定；螺栓连接安装人孔盖；水压试验检测烘缸质量；精细加工。通过上述过程,可以成功制造出大型钢制扬克烘缸,且具有焊缝强韧、疲劳强度高、轴头耐磨性好等优点。(The invention belongs to the technical field of papermaking drying cylinders, and particularly relates to a manufacturing method of a large steel Yankee drying cylinder, which comprises the steps of cutting a thick steel plate blanking cylinder body plate, a cylinder cover plate and a central fixer plate, wherein a manhole is pre-opened on the cylinder cover plate; blanking round steel, and manufacturing a shaft head by a forging car combination; rolling the cylinder plate and the central fixer plate into a cylinder shape; welding joints of the rolled steel cylinder; butting two semicircular cylinder cover plates to form a circular cylinder cover; the middle fixer is connected with the spindle head which is subjected to wear-resisting treatment to form a spindle; cutting off welding residual height and processing a diversion trench; drilling a threaded counter bore on the outer surface of the cylinder cover; welding the cylinder cover group on two sides of the cylinder body, then machining the cylinder body again, cutting off the annular welding seam surplus height, and cooling and then fixing by bolts; the manhole cover is installed in a bolt connection mode; detecting the quality of the drying cylinder by a hydrostatic test; and (5) fine processing. Through the process, the large steel Yankee dryer can be successfully manufactured, and has the advantages of being tough in welding line, high in fatigue strength, good in shaft head abrasion resistance and the like.)