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我段自1983年以来配属了五台东风_4型机车。由于我段位于辽宁省东部山区,冬季严寒且时间长,该型机车在运用中常发生冷却水系统排水管冻裂的故障,影响正常运用。 1984年1～3月有三台机车的散热器底部的φ22×2.5毫米排水管曾先后五次发生冻裂,只好五次放水修理。我段使用的是NL型乳化防锈油冷却水,每吨水的价格为80元,按每台机车上一次水需1.2吨计算,三台机车上五次水就得化费480元,另外在修复该管中还需两小
I paragraph from 1983 since the five Dongfeng _4 locomotives. As I paragraph is located in the eastern mountainous region of Liaoning Province, winter cold and a long time, the locomotive in the use of cooling water system often occurs in the cracking of the fault, affecting the normal operation. From January to March 1984 there were three φ22 × 2.5mm drains at the bottom of the radiators of the three locomotives that had been subjected to fissure cracking five times and had to be repaired five times. I use the paragraph NL emulsion antirust oil cooling water, the price of 80 yuan per ton of water, according to a locomotive on the water once required 1.2 tons of calculation, three locomotives on the water five times have to 480 fee, the other Need to repair the tube in two small