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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：
( w5 v2 O! |( [9 GBasics of Sealing Technology * W2 u1 G6 B g. i2 ~
Application fields for fluid seals
: L* ]4 V! F7 Y3 R+ n, k0 j; i0 j7 Z- I5 e! U
Seal types
7 \8 F0 U9 o6 }! t; M5 ?8 WSealing mechanism 6 G: ?/ L8 P+ U7 z K" O& C# ]
Friction D }# ~& O# m' w( ?2 U
Parameters influencing sealing mechanism and friction 5 g. f s* Z* {5 s( J4 f
+ l3 f% x: Q) J$ ~! J9 I8 z" ySealing Materials & v0 `/ H9 ~7 r, Z, ]
Material overview " ]8 ^3 t+ L" A
Thermoplastic elastomers . Z6 t9 @8 S3 e" h- U; h; M4 T- i
Elastomers ) \2 f) v* V' K0 V: s( `3 F
Thermoplastics % r- S5 ?& G( s& ?3 U
$ H' J* ?+ X i7 oManufacturing Processes for Seals
5 `9 h* S6 D3 V' E" L
; L; l z- T3 z! iProcessing of rubber and rubber fabrics $ A5 X2 J% e/ l W( G
Processing of plastics by injection moulding * z7 X6 `6 @# R- k% W8 n7 R
Processing of PTFE : p5 R6 L4 z1 b. r1 V, p5 ]3 R# `
Engineering Design Guidelines / _8 }0 [/ d" i3 Z4 }! L
Introduction 2 o' K p) w# J: H; i2 `+ S
Basic function of the seal / p. W: L) D6 R5 C* k- g
Seal assembly
4 L2 U! u6 W7 B/ X8 F! y M) iSealing surfaces # r6 G3 p- h: u& z Y3 q; }5 M6 P& G
Gaps
+ J/ }1 {, x# y) R' R+ e6 e0 xWipers/scrapers
5 \% G: g- q, C1 B e1 A, N# g1 `Flow turbulences , |6 `. `/ K5 G9 u; |2 a6 A
Excess pressure loads ( j& T6 X2 e7 G
“Seal-friendly“ surfaces 7 v8 y2 ^- E" k: i
Concentricity ) T Y# M$ ^6 z' f- q! L
Installation spaces for O-rings % B/ G* z m5 _6 C$ \
Installation spaces for lip seals
6 A; _* i! X8 a" p8 D; lInstallation spaces for chevron packings
; M6 c& [# s2 _% i) g6 mInstallation spaces rubber-activated coaxial seals
( ]* G1 W+ y% E! M
3 T1 g& S, D6 B" F+ H* s/ SInstallation spaces for compact seals
1 o+ L4 q, E# z; m7 }Installation spaces for guide tapes : C7 j. {0 I* U- G s
Typical design errors involving seals
2 P5 h1 ]% h6 [7 M8 F! H0 XFavourable design features for seal assembly
% p& s8 V) W7 P6 L
' Z k$ a3 }5 R0 H }/ AStandards
% Q* m7 U% q+ T2 P4 q/ D4 XSeal Types ; Y: B! S* }# E& V |0 Q7 f
Hydraulic seals
" H* d5 V4 }! v. W' h; qPneumatic seals
( z7 [: g7 V% |. ?# yStatic seals 4 b; f2 J" i3 `4 S7 \
Rotary seals 1 K( e" Q. k- s, U+ Z$ j+ ]6 v* w
5 d6 t- K, R' oApplication Examples
], ^8 L; O0 F, sHydraulics # ~1 v6 d4 j7 {
Pneumatics
0 g$ F- w7 [( b* o" W9 K x
" o* m- j0 V7 @; z$ ~7 F" q- ~! z# ]Failures # H+ c6 m( F2 Y! O x9 u
Failure causes
! H) t) D3 d N" TFailures (examples)
) Z; N2 k1 F! b
& O% @5 |' i# l( r. ^5 ?" jCompany Contacts |
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发表于 2008-10-4 15:51:43
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