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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：
/ l4 [( [4 o1 z6 D& PBasics of Sealing Technology % k, d* L; p6 k* ^0 w5 X
Application fields for fluid seals5 J% ?; \% V1 E" S+ N
, {( a) q& S5 E' E* aSeal types
1 }5 m a6 W# C; S4 LSealing mechanism ]$ n3 P! k/ v1 c# t
Friction 3 k0 d" u" ~3 f! J
Parameters influencing sealing mechanism and friction
( o: Q; U- l9 x3 ~) |3 b( i9 j
' d7 N9 F8 J9 Q1 {Sealing Materials 5 Q# F+ O7 u) g3 b8 `: I5 ]: S: m
Material overview
& a2 n* ^7 x) ], S% S6 Z5 R0 x9 \Thermoplastic elastomers 5 L6 Z- b4 `6 |# S8 m9 _* n* @4 ^
Elastomers
8 b! J4 {/ T! q0 u; O7 uThermoplastics , u* J8 M) G8 r# J" E+ U Q
1 p) q$ O+ r: CManufacturing Processes for Seals) ?: I l$ g" r- N, {2 Z( }
4 g7 L% `( j; M; U1 @/ H6 R2 ?
Processing of rubber and rubber fabrics
7 l. a0 d$ I% K7 I! a5 ZProcessing of plastics by injection moulding
+ \5 T+ Y6 E7 q5 n- U) FProcessing of PTFE
! [6 A4 f1 C, L0 CEngineering Design Guidelines
3 p' m/ }) o6 d2 P; XIntroduction
. ]* Z7 G; ^' A: ?3 H2 O4 [Basic function of the seal
& f* G: a* Z1 U7 D7 Q4 cSeal assembly
% k b/ L Z; |) w8 }Sealing surfaces
0 V+ U) F& p# o Y* f2 mGaps
' v9 O/ Z- H& `9 j- ?5 hWipers/scrapers & n$ V7 W" H6 k8 t
Flow turbulences
* v" L6 }' N2 RExcess pressure loads
' _6 j9 ?4 F( G! X' q7 G“Seal-friendly“ surfaces ) ?/ R6 O8 D& U1 a. c
Concentricity . I- j3 L2 E$ u/ |5 w
Installation spaces for O-rings 4 G3 k m+ [, |4 i. I
Installation spaces for lip seals
' ~. M4 z K5 `Installation spaces for chevron packings ! z) Q; [$ v9 y; c8 h6 a
Installation spaces rubber-activated coaxial seals5 j# L( L6 M" `- a7 z
" U7 d1 h! k% w1 H) ~
Installation spaces for compact seals 0 K5 `% ?7 p: d+ I& Q
Installation spaces for guide tapes
& |8 j% u* Z- W7 R* vTypical design errors involving seals
* r* X% w/ E# a0 C iFavourable design features for seal assembly2 V& @7 z8 e/ _# M) `
. Y# e$ _: B# N0 g
Standards
, N, h1 G+ h/ Y m# R- fSeal Types
+ t- c% ~5 D( s' T$ UHydraulic seals $ O9 j9 Z' e" w* ~( g( F
Pneumatic seals
7 {9 ]( B( W1 H/ p3 r" ]" p2 O; {Static seals # `$ ]) S) S9 {" x, e
Rotary seals
P% y, `& S% }3 s0 t- a y1 g8 ~7 F
Application Examples + K! I W& Y) m0 {; y6 i: W e6 q- k6 Y
Hydraulics " p, w% X+ t- [- F
Pneumatics 8 K8 U* @9 o% V
4 { K# U1 X# A2 Z- j
Failures
; @4 {0 j) v- R6 dFailure causes 8 Q& z& `% c% Z! y3 q: M6 z
Failures (examples) 8 M5 h/ p$ K* r. G
! i6 \# V4 b) C3 S1 j7 e5 { M' I/ tCompany Contacts |
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发表于 2008-10-4 15:51:43
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