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过去,我们石家庄机务段配属的内燃机车,其循环冷却用水采用自来水加NL型乳化防锈油,浓度在1.0～1.2%之间。但该防锈油质量不稳,价格昂贵,使用中经常发生析油、析皂等失效现象,而且在冷却水系统的内壁上沉淀出一层棕红色粘胶物,降低散热效能,给清洗和检修带来了很大困难。为了改变循环水的性能,提高散热效能,方便检修作业,我段从1979年2月开始研制新的软水配方,经过七个多月上百次的室内筛选,最后选出了一组比较理想的“SJ—1号”有机高分子水质稳定剂。该稳定剂的主要成分包括聚丙稀酸钠、苯骈三氮唑等有机高分子材料。使用时,只是在自来水中加入适量的稳定剂,便可直接注入小水箱内。通过在东风4型0157号机车上两年多的试验表明,防锈、防腐、成本等几个方面,均优于乳化防锈油。
In the past, we Shijiazhuang locomotive depot associated diesel locomotives, the cooling water used circulating water plus NL emulsion antirust oil, the concentration of between 1.0 ~ 1.2%. However, the rust-proof oil is unstable in quality and expensive and often causes failure phenomena such as oil extraction and soap precipitation. In addition, a layer of reddish-brown viscose precipitates on the inner wall of the cooling water system to reduce the heat dissipation efficiency, Maintenance has brought great difficulties. In order to change the performance of circulating water, improve the cooling efficiency, easy maintenance work, I paragraph from February 1979 to develop a new soft water formula, after more than seven months hundreds of indoor screening, and finally selected a group of ideal “SJ-1” organic polymer water stabilizer. The main components of the stabilizer include sodium polyacrylate, benzotriazole and other organic polymer materials. When used, just add an appropriate amount of stabilizer in tap water, you can directly into the small tank. Through Dongfeng 4 0157 locomotive more than two years of tests showed that rust, corrosion, cost, and several other aspects, are better than the emulsion anti-rust oil.