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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：# {" T" ^" c# O7 P
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Basics of Sealing Technology
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1 n Q+ ^5 S0 \9 g' c$ y& U: YApplication fields for fluid seals: A) n* I6 [. k2 i- z/ f2 G$ Y
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Seal types / \3 K2 E9 K. f+ f; f- ^5 j# V- O1 y- Q
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Sealing mechanism ' S2 X2 F( x! J5 j- F1 a1 G% l0 @
) I) A4 q* G- K( X3 UFriction
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Parameters influencing sealing mechanism and friction
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5 Q Q, ~3 s4 O" [8 y
" h6 U; r3 B" uSealing Materials
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6 C0 ]* n8 j. x' V: PMaterial overview
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Thermoplastic elastomers 9 s+ F6 B4 }1 s$ O2 v" w$ y; y
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Elastomers
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6 T5 C# o1 T8 h6 n0 @Thermoplastics
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/ J( ?1 s$ \, Q. h6 u- wManufacturing Processes for Seals' ?; U+ U# }3 z& ^" v4 g
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Processing of rubber and rubber fabrics
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Processing of plastics by injection moulding . e3 o. Z/ e, d& T- x% z
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Processing of PTFE
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5 O5 t! r; B8 {' FEngineering Design Guidelines
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Introduction ( ?" e F: x& N, c- J' O+ @
3 p) E+ [) g8 g& Q T2 y9 r9 XBasic function of the seal 3 m3 t4 _6 E- ] y7 ]. ^
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Seal assembly 7 {$ t9 I; i2 b9 c* o
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Sealing surfaces
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* v v% u: F& f! \9 wGaps
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$ q% A! s# S3 F4 H; p2 nWipers/scrapers , W) ^4 O; T7 h. a$ ?! d4 H
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Flow turbulences . p( J7 H8 r4 b. Y- S
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Excess pressure loads : y5 B c) \0 Y7 i9 t& `. o# D3 F% C
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“Seal-friendly“ surfaces
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2 i, y! `. e" |" K7 |7 eConcentricity
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7 D! }; [9 H8 M# z/ A8 vInstallation spaces for O-rings
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5 {: }( T/ ?. ZInstallation spaces for lip seals $ B8 x& W/ T& ^* n
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Installation spaces for chevron packings % z7 o) J; b0 d( W J
1 {+ m7 J5 L3 z9 RInstallation spaces rubber-activated coaxial seals% G% V+ X, S: K& h5 e( z
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Installation spaces for compact seals
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Installation spaces for guide tapes & W7 ]! k1 E- W6 P( g H, D- o
. w/ K6 ~ {; @. WTypical design errors involving seals
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1 ]0 d7 } g2 M9 ^0 P) o a7 Y+ _Favourable design features for seal assembly
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" B& |6 ] V2 HStandards # S+ G4 P2 R* Q. |% U8 Z3 R
4 n) U5 S+ F; y2 O. C2 XSeal Types & c' `5 W3 n/ ^+ a( k$ ^8 @
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Hydraulic seals
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# l5 e. {! g* [# p+ aPneumatic seals 1 \. C0 u, x6 o2 z
8 h5 ~* w) Z9 \8 r7 ^/ N8 kStatic seals
6 G, g5 k4 [; V' i* }& J$ f3 ^, p/ }" {9 ^0 g' R7 y
Rotary seals 2 l, d" V7 g# C+ A( A- A& ~
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Application Examples 6 m0 I" [4 V2 w" u6 B( ~/ F& W: f
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Hydraulics & t- J% P# e; L2 F
V) G) e! e$ P0 U2 WPneumatics 8 n) L' G& }0 v: S% H. [! D
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Failures 3 F8 L" J$ a: B- p% P; U h
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Failure causes " ]2 V$ r3 |, i& R8 N) J
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Failures (examples)
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, F0 `& m5 D0 @8 f7 pCompany Contacts % |( ?8 k" o9 v
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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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