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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：/ E1 S3 k! c* b& r/ E
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Basics of Sealing Technology 3 g5 h' I# C+ o2 h/ y
. o2 H3 X$ [/ M: U( Z/ C5 wApplication fields for fluid seals
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+ ^* j, K) _ l6 m
0 X% ?; D; H vSeal types ( f ?5 k* ]% @4 p$ O7 O
( F- c9 H8 h2 ]' G/ rSealing mechanism
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Friction ( l, ^% \" j2 W: h2 w1 F! o C
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Parameters influencing sealing mechanism and friction , K0 l) O1 w& P* @ Q
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Sealing Materials
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& }- [1 F5 d. N( q6 U: q7 OMaterial overview 5 f3 w$ k! n- ]8 i! A
: l" @; s, I2 a6 e/ y4 qThermoplastic elastomers % u" I& O0 ? u
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Elastomers 9 d5 l9 y/ C, O# A% f
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Thermoplastics 4 }9 ?& u$ `- A
7 l4 n; |* C! R- d& u& t8 [( H# q$ `
Manufacturing Processes for Seals
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Processing of rubber and rubber fabrics
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Processing of plastics by injection moulding 3 I8 h& |1 ^$ e1 Q
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Processing of PTFE
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Engineering Design Guidelines
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Introduction
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Basic function of the seal
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" _8 j+ U, s# h, H* y/ { [ zSeal assembly , |) W5 u e0 Z% d7 H& {
1 O4 j1 T9 L1 @ ?5 p: GSealing surfaces - p3 }9 A7 W' j
* T3 B1 A a; l' qGaps
9 O6 H* W, X# Q, _
? ` D+ G, S1 X5 y. j9 iWipers/scrapers
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& g: x, j0 Y& e" D0 G7 ?$ bFlow turbulences
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% ?% d0 G+ \. O: A) K: GExcess pressure loads 1 Q0 M5 O7 _: E& c! c7 y
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“Seal-friendly“ surfaces
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Concentricity
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& D1 M# c; r+ I6 U3 iInstallation spaces for O-rings
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Installation spaces for lip seals 5 g* u2 w( n: @+ Z2 D/ {) U
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Installation spaces for chevron packings
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Installation spaces rubber-activated coaxial seals
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) w5 t7 L2 z4 L* B1 p" z! ZInstallation spaces for compact seals
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Installation spaces for guide tapes # S. j0 k) P' a' J
8 j( r; Q) Z; eTypical design errors involving seals
6 N- A8 n t# X$ _' {9 }4 s2 w( }, c5 {- q/ f, |
Favourable design features for seal assembly
9 X: L4 c# Q' E6 j Z9 N/ j
2 S N7 o+ l0 q, W9 r5 k l6 P$ H3 a: K$ o* Q+ f% V
Standards
' T9 ~% V1 j- E& y$ e$ y! e2 k1 H2 C: F% M$ r
Seal Types , }, [0 k# z+ f" t; s X
8 O) x j# a! F H
Hydraulic seals
$ @' Y& ?' N5 b3 T. Y: K% G; P$ Q8 e% S7 a' E8 U* S5 i5 y
Pneumatic seals 7 i4 `: D8 a; z! e7 j4 e
+ Z3 Z3 i5 X9 k: k: `" w8 oStatic seals 0 l b @+ [& q- h
" v6 S6 q8 ?( ]# Y' ~
Rotary seals 5 y+ H2 Q6 G! N$ r7 c" ^
. ~9 |* o H8 C; Q1 Q# w; i
$ f2 I D0 l% H/ ~1 W+ rApplication Examples
! @( D5 Q5 _/ l& z" C s
$ ?7 b7 R7 m# iHydraulics
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! ?- O4 ^; v t$ j0 ZPneumatics
5 Z' d# `) v4 M7 G' f+ P' q
s2 s% k& n* S' @, Y. c
0 ^. J) o9 `7 E1 S, m) ?Failures
2 `. _5 z1 m O" _( Q* c4 ~8 i: V3 i$ J4 A
Failure causes
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* U, U( S7 R0 v$ y9 |& g6 P8 {Failures (examples)
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8 {* v4 a+ s, Y VCompany Contacts
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/ Q$ `) @8 j0 J3 ~( @& w[ 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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