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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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Basics of Sealing Technology
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/ J: U7 B' B, c1 }Application fields for fluid seals
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Seal types / D, D' {0 T8 Q
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Sealing mechanism 4 @! e5 `; J/ n2 _. W
6 d6 L* ^+ O WFriction
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6 u- _" {5 J! S/ }/ q. XParameters influencing sealing mechanism and friction
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Sealing Materials
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- X& M9 D# A8 C$ b3 i7 U( m4 tMaterial overview M' }9 d6 I5 ]8 ]! y% l* J( n
& X/ A4 Y% f1 s; R* ^ S6 o$ ^Thermoplastic elastomers
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8 ]8 L8 I3 J$ BElastomers 3 Q5 V& V, \! Q; [. j
" B( d. L- O; [ b3 aThermoplastics 4 F* m4 i) g! p# J# s1 j
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( Z N1 \" X/ A* I! ^Manufacturing Processes for Seals* E( I6 b! m+ F9 G
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Processing of rubber and rubber fabrics % c$ P& J$ F: n% N; J$ L, K4 Y
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Processing of plastics by injection moulding - ^) r" d2 s& y3 O) T
7 v9 ?7 R3 A$ P$ a) [# f! p3 iProcessing of PTFE $ M0 J; O/ v& E1 D7 S# _
. d# P. G9 E/ {5 X3 CEngineering Design Guidelines 4 \( X9 r9 u1 l6 I
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Introduction
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Basic function of the seal 3 M5 G4 u5 n8 C! i+ o) {4 u* E0 R( Q6 j
& A0 R4 X+ }) ?3 d1 ^5 a/ D) PSeal assembly - C) F! ^* K) S7 {9 j+ c2 _0 i
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Sealing surfaces
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" D1 E" A. n0 ?! X! [Gaps
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, ]- }& N6 P8 i* s' y8 x5 ^9 xWipers/scrapers 0 W O! c0 k! A8 n) f, j, u- B1 [
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Flow turbulences % j5 F5 u: j* L- c* S* R6 q
) N( [: f' u8 Z- A+ F7 ?9 z$ a+ X5 xExcess pressure loads
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6 y3 Y! ^8 x$ s“Seal-friendly“ surfaces
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5 u( M7 f) I1 eConcentricity - [! F* G5 l' u( x K, u6 @8 b
5 A: P9 u% D6 h8 ZInstallation spaces for O-rings ; T$ K6 ?, u; |) j8 x; l$ [
5 w, d) E+ \, z' }; E" N# oInstallation spaces for lip seals 2 T& t8 o1 b) P( U6 W' U$ H! a; p
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Installation spaces for chevron packings
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2 o! } R! P( {& X8 QInstallation spaces rubber-activated coaxial seals
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2 M9 \, m8 |8 L$ O! VInstallation spaces for compact seals ! i9 D P6 f9 l. p/ f
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Installation spaces for guide tapes - C5 I% w# f& I0 A% Q
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Typical design errors involving seals 2 P6 Z* F! n7 g* X0 ]* {! C
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Favourable design features for seal assembly6 K* t. x. J, `( j4 Y
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( h: ~! p3 x" j# x/ L; C, ?Standards ; X: k+ ?2 k5 P8 n: ~7 R; L( u8 H7 c6 J
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Seal Types ( t* ?. c2 T. ^6 [3 d* z
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Hydraulic seals 0 u3 `6 b, _/ j! K) @
0 d* `/ q1 h4 J0 RPneumatic seals ; V8 ?7 X- Z W3 ]. d' a
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Static seals $ N! x3 u5 R$ G% C% e
9 H9 A. g I+ E& Y$ h8 U. r4 xRotary seals
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' U( Y/ s" ~- d+ cApplication Examples " |0 k5 h' ^4 O# v L" q# y% {
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Hydraulics ; q+ G3 @+ z k( i' t
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Pneumatics # w: }2 D. l0 m6 g0 i q& m; d. Q/ }4 F0 U
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% M6 H( K" X6 w. yFailures
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9 w8 a- m Q# J- {8 mFailure causes
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; @1 J- P5 z5 Q- TFailures (examples)
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Company Contacts
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[ 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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