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南京玻璃纤维工业研究设计院,遵照毛主席的“备战、备荒、为人民”的伟大教导,研制了用玻璃纤维增强的聚乙烯滤水丝,以代替电解铜质滤水丝,从而为节约大量铜丝提供了新途径,并降低了成本,也有可能增加水井的寿命。一、代用滤水丝材料的选择代用滤水丝的选择,必须具备一定的抗张强度,无毒、无臭、无味,化学稳定性高,尺寸稳定。1.玻璃纤维:有良好的尺寸稳定性,其断裂伸长率为3.%,抗张强度为35000公斤/厘米~2,均较尼龙性能好,而和铜近似。但玻璃纤维在水中易受缓慢的侵蚀,故须选
Nanjing Fiberglass Industry Research and Design Institute, in accordance with Chairman Mao’s great teaching of “preparation, preparation, and people,” developed a glass fiber-reinforced polyethylene water filter wire to replace the electrolytic copper filter wire. Saving a lot of copper wire provides new ways and reduces costs, and it is also possible to increase the life of wells. First, the choice of alternative water filter material Alternative water filter selection, must have a certain degree of tensile strength, non-toxic, odorless, tasteless, high chemical stability, dimensional stability. 1. Glass fiber: Good dimensional stability, elongation at break of 3.%, tensile strength of 35,000 kg/cm~2, all better than nylon, and similar to copper. However, glass fiber is susceptible to slow erosion in water, so it must be selected