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冶金行业中使用的液压润滑系统工作环境恶劣， 故障率高，主要是油质污染所致。分析了油质污染产生的原因及其危害性。介绍了系统介质受污染程度的检测方法， 提出了控制污染的具体措施。
The hydraulic lubrication system used in the metallurgical industry has poor working conditions and high failure rate, mainly caused by oil pollution. Analyzed the causes of oil pollution and its harmfulness. The detection method of the contamination degree of the system medium is introduced, and the concrete measures of pollution control are put forward.