|
|
德國機(jī)械設(shè)備制造業(yè)聯(lián)合會(huì)(VDMA)的液壓密封培訓(xùn)教材，ppt格式,，一共19個(gè)壓縮包,。目錄如下：9 R5 D& E1 Q5 p. f+ p
Basics of Sealing Technology * n; o& J( E1 E% X/ s" d" a
Application fields for fluid seals
+ T. g' a/ u1 G# d% ?* u2 d: t
, o/ n5 k# T; M. NSeal types
- Q$ Q/ w# H, j' PSealing mechanism
& |% e; o2 Y# z. @7 Y% fFriction / y8 E1 J, b5 t' z: R! C" i) V
Parameters influencing sealing mechanism and friction
8 Z- j. n( e2 l: `7 X0 }+ v, Z
( m, ?# o# n2 lSealing Materials / n$ O/ z n8 g% X- j; U
Material overview . f. Q3 O7 X; P
Thermoplastic elastomers
/ H! Z, `" F: B ?- ]3 sElastomers 4 V' ~* f" W! u) L, L0 F/ F0 ]
Thermoplastics ! E" n m" |7 i( }" b7 N, J
% `2 @% V) D. \) @3 ?
Manufacturing Processes for Seals% D- y1 ^. p& a! I8 P
/ [, y9 a& u2 p# s1 [( V/ P# x0 hProcessing of rubber and rubber fabrics
3 S: l7 ]# o1 XProcessing of plastics by injection moulding 4 ?) q: F8 L' b! c Y' v: K9 c& Z
Processing of PTFE
# p- u9 ]4 {) s, H, Y+ M9 C7 pEngineering Design Guidelines
4 C9 @. I6 R3 \3 V1 NIntroduction
& g' U5 P# b! ?Basic function of the seal
3 U4 i& ^1 x- FSeal assembly ' a) c& ]& p$ G4 a
Sealing surfaces
" K( l* |* c: X: Q: @7 c u( W. rGaps
. y2 g" E, m. P, y# @0 d m- `Wipers/scrapers / L# j1 z: B& v' Z* y2 x
Flow turbulences ! Y$ y# `" y f4 c# L% g% V; m
Excess pressure loads ( P5 y( _6 S- o: Z5 t
“Seal-friendly“ surfaces 1 A V+ N) C# \% n2 D( n2 ~
Concentricity ?' W* U% p* S( B
Installation spaces for O-rings 2 `7 N r" V1 p; `% M. E
Installation spaces for lip seals ! P( s9 S/ Q( b8 Q3 s7 z! K
Installation spaces for chevron packings
; ]8 k! ^ w8 a: x5 \Installation spaces rubber-activated coaxial seals. e1 T- s) l" ^& \& O5 l$ P: q. ~
2 W: q/ m' a3 t9 ]
Installation spaces for compact seals
# h1 T5 R; ?* o( m( ~3 d& A. fInstallation spaces for guide tapes
; j. y0 {# s# P. Z8 y; ~( B4 OTypical design errors involving seals
" k) }- {7 t+ T; r, lFavourable design features for seal assembly
' ~( j$ u# e& f/ z0 |. M& }
. M. _/ R" T( m! ]Standards 5 @7 i) o2 m3 W; W
Seal Types
3 ~3 ?, z, x% u' O* sHydraulic seals
% u8 |( Q( `; @3 A m) G: \Pneumatic seals + s; D6 {/ Y e0 `
Static seals - \( p5 i& n5 n
Rotary seals ' T% w+ X5 Z6 L( s* Y# a
) W, w, d7 v0 e" c3 ^Application Examples
7 a8 G, n, F3 u9 c% uHydraulics
' ]& I$ r) [) MPneumatics ' `. ~8 V* c" J
3 }9 |4 l' o" O6 z* x9 Z! A
Failures
) \% Z% A% O3 rFailure causes . C7 h4 \8 \" N9 M/ T
Failures (examples)
( [; Z1 U7 t$ B$ e+ M6 U8 I2 N, K9 R5 m ~. u$ q
Company Contacts |
|
發(fā)表于 2008-10-4 15:51:43
QQ好友和群
收藏
淘帖
問題專業(yè)，描述清楚
伸手黨/灌水/看不懂
樓主
