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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……' C) p# Z6 T9 ]/ f
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Here's four quick tips for you to get the most
. ]2 Y( e5 R+ T9 ?7 R" dout of THE most important component
0 S, `5 g0 r/ \/ Vof every hydraulic system - the oil:
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% _) O: x, _0 G1. Don't change the oil - filter it.
7 m9 P/ M W# i% \6 @Water or particle contamination rarely necessitates an oil change
0 Z0 N `0 |0 X. _' I* x- unless the contamination has resulted in additive depletion or
! Q4 g/ @! B4 d' k+ Y/ vbase oil degradation. These contaminants can be removed from
7 P# m; l! A! U+ m$ L. mhydraulic fluid by filtration.
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2. Eliminate particle contamination to reduce breakdowns...# G2 L' s% h4 V& B! f
Research has shown that maintaining fluid cleanliness at ISO 4406
' ]: |0 n! A( C2 l16/14/11 will result in a tenfold increase in the average time ! t/ `! Z, b1 @/ ?
between breakdowns when compared with a fluid cleanliness level
+ l A; E2 |5 Uof 24/22/19. This is based on the findings of a three-year study of" s" Z2 \4 T+ {+ h0 s
117 mobile and industrial hydraulic machines to determine the
3 M' C+ m9 I$ Q0 g/ y5 u6 \1 scorrelation between fluid cleanliness and breakdown frequency. * T+ C( o4 H) m, _- n7 M
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3. ...And extend fluid life.: _# k j2 F4 z& N5 |
Particle contamination reduces the service life of hydraulic oil* N( Y. U+ w/ A3 i1 \
by stripping additives and promoting oxidation. Additives attach - L# B7 i" _" `! p6 h5 F4 M4 `' p& d
to particles, which are then removed by the filters or settle to ' e) c$ N1 p) o! [
the bottom of the reservoir. Wear metal caused by particle
4 c \! l0 d; s$ Pabrasion is a catalyst for fluid oxidation. 4 y) z( r( [( N
4. Keep it cool.
' j0 z/ n) S) p, V CElevated operating temperatures increase the rate at which the & ?) K6 v5 ]# a! N7 f
oil oxidizes and this decreases its service life. By-products
- C8 r, O/ f7 x9 |of the oil oxidation process - varnish and sludge, can cause
) `( h. `9 W0 {. e# T+ A& T$ }reliability issues such as valve spool stiction and
! k1 w6 A+ w5 C$ P2 s- Cfilter clogging.3 O3 l3 g5 f4 Y4 H: F
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我的翻译( C" S P/ r" G% {5 g/ f: Y
' z& x( j. L/ D2 D3 \5 f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
5 w* \* C5 \; T8 k9 i1。不要更换液压油 - 而应该过滤。 / A$ A: Q2 [* ^; \
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。 , I8 Y) j+ D9 ~, {) D+ w
2。消除颗粒污染以减少故障……5 L0 u5 Y, O' _/ N& d+ C C
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。 ) A0 r9 n" r: m r" T8 w" a
3。 ……，延长油液的寿命。 ' _ ?- z& I3 |/ H+ y5 F
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。 5 `. M" o. g) W% [1 A/ m6 [
4。保持液压油冷却。 ; Y' f$ K+ B9 o/ I* g* N
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 2010-7-20 19:31:02
:译得真是很专业！
