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一、管件一般切割法管件的切割,通常都要根据管件的材料、批量、尺寸等不同的条件,选择适宜的加工设备和方法。薄壁管的切割常用剪切法,这种方法的特点是速度相当快,但剪切时管内外都要使用金属模,剪切不同直径的管子,就要制作和更换不同的金属模,同时管径误差的限制也相应提高。如果剪切带焊缝的管子,情况就更加复杂,内表面隆起的焊缝,使有效管径减小,因此增加了模具和管壁的间隙,使切口容易产生歪斜,降低剪切的质量。对于厚壁管,剪切是无能为力的,必须采用相应的切割法。如无缝钢管的切割是其生产中不可缺少的一道工序,该工序至今仍大量采用薄砂轮片作业,虽能满足生产需要,但车间里噪声和粉尘的污染严重,工人的劳动强度大,就砂轮片的耗资来讲,颇引人注目。
First, the general cutting pipe fittings Cutting pipe, usually according to the pipe material, batch size, size and other different conditions, select the appropriate processing equipment and methods. Thin-walled tube cutting commonly used method of shear, this method is characterized by very fast, but when cutting the tube inside and outside have to use the metal mold, cut different diameter tubes, it is necessary to make and replace different metal mold, at the same time The diameter of the error limit is also increased accordingly. If the shear pipe with welded pipe, the situation is more complicated, the inner surface of the raised weld, the effective diameter to reduce, thus increasing the gap between the mold and the wall, the incision is easy to produce skew, reducing the quality of shear. For thick-walled tube, shearing is powerless, you must use the appropriate cutting method. Such as seamless steel pipe cutting is an indispensable part of its production process, the process is still a large number of use of thin sand wheel operation, although to meet production needs, but workshop noise and dust pollution is serious, the labor intensity of workers on Grinding wheel cost is concerned, rather compelling.