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水玻璃是内燃机车冷却液的主要组分，它的形态将影响冷却液的使用寿命。采用硅钼黄光度法、四氢呋喃萃取法测定冷却液经磁化处理后高聚硅酸、单正硅酸、总硅含量，结果表明稳定性增加。磁化处理在齐齐哈尔机务段使用一年，节省了冷却液制备投资，取得明显的经济效益。
Water glass is the main component of diesel engine coolant, its shape will affect the service life of coolant. The silicon molybdenum yellow luminosity method and tetrahydrofuran extraction method were used to determine the content of high polysilicic acid, mono-orthosilicic acid and total silicon after the magnetization treatment. The results showed that the stability increased. Magnetization in the Qiqihar locomotive depot one year to save the cooling liquid preparation investment, and achieved significant economic benefits.