大直径的回转干燥窑筒体(见图1)是由不同厚度的钢板卷筒后对焊而成。过渡段的斜面和焊接坡口,一般是在卷筒前先在刨边机或大型龙门刨床上加工出来。我厂缺乏上述设备,采用气割方法解决了这一难题。为了适应气割工艺,首先应按要求的厚度和宽度,将扳料卷焊成圆筒,如图2所示。这样就可变斜面切 Large diameter rotary kiln drying cylinder (see Figure 1) is made of different thickness of the steel plate butt welded together. Transition section of the bevel and weld bevel, usually before the reel in the planing machine or large planer processed. I plant the lack of equipment, the use of gas cutting method to solve this problem. In order to adapt to the gas cutting process, first of all, the required thickness and width of the roll should be welded into a cylinder, as shown in FIG. 2. This will change the incline