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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：& n, ^+ M: V2 l9 j/ y9 W7 e
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Basics of Sealing Technology
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Application fields for fluid seals
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( X/ G! L4 E+ E4 |Seal types 0 y+ V+ X0 F6 [8 h& u
; \$ V5 i8 f( }5 _! T* ^+ R9 o- {Sealing mechanism & a2 c/ W5 t5 U4 P$ B: B, I: F
- i( d+ N" i8 e, O) E3 rFriction
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# \7 s. N! J- n/ G3 S7 K. I% k* J- WParameters influencing sealing mechanism and friction
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* W( e9 d! d7 u; u8 JSealing Materials ) m9 a: Z3 P; z1 `/ V: a2 h* d2 j% J
; k1 @! w0 |' t& n9 @' [Material overview
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/ h2 T4 T3 o4 n6 jThermoplastic elastomers
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$ {! Y; L0 @( z% kElastomers
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Thermoplastics , w# G5 p/ B9 I- I
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Manufacturing Processes for Seals: q( f! P+ n; X4 z
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Processing of rubber and rubber fabrics ! B& Z6 t6 A2 v* G' N
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Processing of plastics by injection moulding
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Processing of PTFE
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# j% k- ^2 @9 KEngineering Design Guidelines
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; g+ d9 F. W( X. w) E# B$ [Introduction
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, I9 z h# m" c; tBasic function of the seal
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! g3 Y9 Z* Q" f" Y p0 xSeal assembly 1 R4 X5 {' \0 L U. c k, a
- v9 A% y8 `( O# ~Sealing surfaces ( X/ S+ s2 o% _. q2 T% b
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Gaps
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Wipers/scrapers
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' m( Z: a# N! T) g mFlow turbulences - ~: r5 |2 M' H$ C5 [
* |' t# \4 d- s+ t: |/ |# bExcess pressure loads ' g8 {3 v% f# O
# |; B: R) W) f+ [4 G“Seal-friendly“ surfaces 0 d0 G1 ]! i; V- E ]
# V! h$ \4 Y4 C' GConcentricity 5 P$ v S0 @6 d# e* B
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Installation spaces for O-rings - @6 V: s9 Y/ V
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Installation spaces for lip seals
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0 `. o0 F3 G9 q( e' U( RInstallation spaces for chevron packings ) W* ?5 n+ }) D# `/ |
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Installation spaces rubber-activated coaxial seals
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Installation spaces for compact seals U$ Y3 \2 V$ r+ |/ U' N7 I
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Installation spaces for guide tapes
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Typical design errors involving seals 0 c! L+ {* y# s0 ] t
; h4 } \" b" f% o' @3 p6 LFavourable design features for seal assembly
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Standards $ ], B9 l9 M) X' v
5 o6 N9 p- i! u6 [Seal Types + c3 k, ~( c' U( |7 U9 j& U% Q! e$ X
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Hydraulic seals 9 R* `5 E2 ]4 E
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Pneumatic seals - m3 A) U' m' W6 ~9 @
- }3 _7 t; L) {! GStatic seals ( h7 e Z. x$ e6 g! O9 s0 Q
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Rotary seals 1 s# ?& B. G; G& P$ [) p- R
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" D- u+ n+ y |Application Examples
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Hydraulics 3 c7 E" d! i$ g' A0 a7 n- h
7 @/ J* D) c5 QPneumatics
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" u+ |4 f2 o: j6 e/ c1 o6 NFailures % ]: w& ? Z; t" w6 l& Q- N
6 c( g8 B) U" J* f% o) }5 U9 V4 MFailure causes
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' j* q$ b" v/ b" aFailures (examples) & ?) ~% [+ G- j8 W* k5 [8 w
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$ r( P# B" q" P7 `: Z" Z0 zCompany Contacts + s: H9 P; c2 J% o M
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8 M9 @- F- O7 @2 Y' ?2 n[ 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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