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德国机械设备制造业联合会(VDMA)的液压密封培训教材，ppt格式，一共19个压缩包。目录如下：
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E( o( s d" VBasics of Sealing Technology
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( d F+ e0 [' w: WApplication fields for fluid seals
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8 y5 f( U4 P+ ^; v( }Seal types * G2 Y. K0 ]/ \% [
0 t P C0 L. T5 u. i' uSealing mechanism
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3 P" x5 `8 i/ I; sFriction
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Parameters influencing sealing mechanism and friction
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Sealing Materials
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Material overview 5 h% D( U8 J" l' ~( y; x! Q0 @
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Thermoplastic elastomers 5 R5 M! @$ r" d
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Elastomers
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4 s& e% y# k$ d: n0 l: |Thermoplastics % V" g; |# k1 u" H
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$ d( N# {$ d1 f: h5 e* h" X; ?8 r+ lManufacturing Processes for Seals
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Processing of rubber and rubber fabrics
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6 ]7 H2 T4 M. U+ r2 V- bProcessing of plastics by injection moulding " r- a) O9 z" n7 K5 x0 H& N6 p
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Processing of PTFE ; m7 \- P0 d+ @% T/ w* l/ |
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Engineering Design Guidelines
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Introduction
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Basic function of the seal & b1 Z8 F1 t9 o
|( ?5 I9 A4 c* F; t, M& A/ g9 @Seal assembly 1 k8 }6 ~6 C% G. x5 e
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Sealing surfaces 2 u `- Y0 `" w3 ]) o3 n
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Gaps
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Wipers/scrapers
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Flow turbulences 8 X* M* T {. r( Y( @$ g/ | m
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Excess pressure loads
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4 F+ h h, @2 }- n0 a& f) B“Seal-friendly“ surfaces ' W( j2 N8 W# |+ _( f, t% ]
* |6 ~" X. m, g5 F+ o& U5 r3 PConcentricity L# {* c3 {- u- @6 K0 J- e
% W0 z" d# ~7 y: x. uInstallation spaces for O-rings
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6 t7 u8 [8 \, t1 Q0 g! RInstallation spaces for lip seals
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( L# S9 B1 d! M E DInstallation spaces for chevron packings
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Installation spaces rubber-activated coaxial seals7 }- k7 h, f0 j% s, w
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Installation spaces for compact seals
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Installation spaces for guide tapes ; w9 I* n, {7 A3 R" E) F8 a
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Typical design errors involving seals 9 D9 Q5 z7 d; W# f% V9 ~3 y
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Favourable design features for seal assembly
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5 j7 m* } J' {8 Q5 y& D8 e6 YStandards # ~5 z( U8 ~; |' l& a+ M
0 v: _0 d0 b$ L& l; x8 K1 SSeal Types
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- X( i7 {) m* k! ]* d7 _9 a6 |( ]Hydraulic seals ' w4 ^. B7 Y9 o) V( f, t
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Pneumatic seals
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Static seals 5 |9 h1 ]& g9 p5 u. g
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Rotary seals ' u" i" s j' e/ Q- S; y
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Application Examples
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Hydraulics 6 h& q0 b/ I7 O2 Z& J) z2 {7 T
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Pneumatics
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) q! K# O# n4 [% Z6 V6 OFailures
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Failure causes
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5 _8 f9 v3 `; c# Z- rFailures (examples)
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Company Contacts 3 X; K: n: G, m5 Y( |
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7 j& f; H. N( e/ W[ 本帖最后由 schjie 于 2008-10-4 15:53 编辑 ] |
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发表于 2008-10-4 15:46:34
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