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最近注册了一个国外的网站（网址见文后），经常通过Email给我发送液压领域内的各种注意事项。现共享一封我翻译的邮件，与朋友们共同学习……
Here's four quick tips for you to get the most
out of THE most important component
of every hydraulic system- the oil:
1. Don't change the oil - filter it.
Water or particle contamination rarely necessitates an oil change
- unless the contamination has resulted in additive depletion or
base oil degradation. These contaminants can be removed from
hydraulic fluid by filtration.
2. Eliminate particle contamination to reduce breakdowns...
Research has shown that maintaining fluid cleanliness at ISO 4406
16/14/11 will result in a tenfold increase in the average time
between breakdowns when compared with a fluid cleanliness level
of 24/22/19. This is based on the findings of a three-year study of
117 mobile and industrial hydraulic machines to determine the
correlation between fluid cleanliness and breakdown frequency.
3. ...And extend fluid life.
Particle contamination reduces the service life of hydraulic oil
by stripping additives and promoting oxidation. Additives attach
to particles, which are then removed by the filters or settle to
the bottom of the reservoir. Wear metal caused by particle
abrasion is a catalyst for fluid oxidation.
4. Keep it cool.
Elevated operating temperatures increase the rate at which the
oil oxidizes and this decreases its service life. By-products
of the oil oxidation process - varnish and sludge, can cause
reliability issues such as valve spool stiction and
filter clogging.
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我的翻译
下面是四个快速提示，从中你可以以最快的速度了解每个液压系统最重要的组成部分——液压油的使用注意事项
1。不要更换液压油 - 而应该过滤。
水或颗粒性质的污染很少导致必须更换液压油——除非污染已经导致添加剂耗尽或使原本的液压油降解。这些污染物可以通过过滤的方式从液压油中去除。
2。消除颗粒污染以减少故障……
研究显示，保持油液的洁净度在ISO 4406 16/14/11标准下，相较于保持在标准24/22/19下，将导致两次故障的间隔时间平均增加了10倍。这是根据一项为期三年的、关于117个移动和工业用液压设备的研究所得出的结论，该研究用以确定油液的洁净度和故障率之间的关系。
3。 ……，延长油液的寿命。
颗粒污染通过剥离添加剂和促进氧化降低了液压油的使用寿命。添加剂附着在颗粒上，或者被过滤器滤除或沉积在容器的底部。由于颗粒摩擦所造成的金属磨损是液压油氧化的催化剂。
4。保持液压油冷却。
过高的工作温度加速了液压油的氧化速度，降低其使用寿命。油氧化过程中的副产品——涂料和沉淀物，可能会导致可靠性问题，如滑阀运动的粘滞和过滤器堵塞。 |
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发表于 2013-11-17 11:07:57
楼主