塑料软管外包圬工作为一种新管材用于低压管道输水灌溉具有很多优点,深受群众欢迎,因而已得到大面积推广应用。这种管材迄今大都由手工作业来施工。最近笔者研制出专用的机械器具,不仅使施工速度加快了3～5倍,而且还由于提高外包圬工的强度和均匀度而减小了管壁厚度,从而降低了管道的单位造价和投资。该机械器具已经通过鉴定。 Plastic hose outsourcing 圬 work as a new pipe for low pressure pipe water irrigation has many advantages, welcomed by the masses, which has been widely promoted. To date, most of these pipes have been constructed by hand. Recently I developed a special mechanical equipment, not only to speed up the construction of 3 to 5 times, but also because of the increased intensity and uniformity of outsourcing workers to reduce the wall thickness, thereby reducing the pipeline unit cost and investment. The mechanical equipment has passed the appraisal.