论文部分内容阅读
渗灌工作管,是在考虑到管材采用机械方法造孔加工容易,材质的物理力学性能与抗老化性能较好,价格相对低廉的前提下,根据1985～1987年所做的大量试验研究结果,选用φ20、φ16PE管,在PE管上按一定间距冲孔而成。冲孔质量直接影响着出水量的大小、各孔口出水的均匀程度及孔口自身的防堵性能。因此,孔口的加工制作至关重要。孔口应为过流提供良好的水力学条件,这就要求孔口孔径一致、孔形规则、不偏不斜、不带毛刺。为此很需要探索一种理想的冲孔工艺和冲孔工具,并借鉴现有的测试手段和分析方
Permeation of the working tube, taking into account the use of mechanical pipe making hole processing easy, physical and mechanical properties of materials and anti-aging performance is better, the price is relatively low under the premise of a large number of experimental studies done from 1985 to 1987, Use φ20, φ16PE pipe, punched at a certain distance from the PE pipe. Punching quality directly affects the size of the amount of water, the water outlet of each hole and the anti-blocking performance of its own. Therefore, the processing of the orifice is crucial. The orifice should provide good hydraulic conditions for overcurrent, which requires the same orifice aperture, hole rules, not bias not oblique, without burrs. For this reason it is necessary to explore an ideal punching process and punching tools, and learn from existing test methods and analysis