The relationship between total polar component in oil and its dielectric constant was analyzed. the deterioration of oil with heated time and heated temperature was studied.
分析了油中的极化成分总含量与油的介电常数的关系，结果表明：提高油温、延长加热时间或长期存放都会使油的介电常数增加，从而导致油质量的恶化。
As there is certain response time for hydraulic valve startup, constant pump has to bear the momentary extremely high pressure impact with a high risk of oil pipe explosion.
液压阀开启有响应时间，定量泵系统启动时，瞬间压力冲击特别大，油管容易爆裂。变量泵启动时只有3mpa左右的待命压力，消除了爆管的隐患。
As there is certain response time for hydraulic valve startup, constant pump has to bear the momentary extremely high pressure impact with a high risk of oil pipe explosion.
液压阀开启有响应时间，定量泵系统启动时，瞬间压力冲击特别大，油管容易爆裂。变量泵启动时只有3mpa左右的待命压力，消除了爆管的隐患。
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