|
|
马上注册，结识高手，享用更多资源，轻松玩转三维网社区。
您需要 登录 才可以下载或查看，没有帐号？注册
x
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- w' F. b3 D8 R' S
8 `6 G0 V% b) ]/ L/ j$ F& R
Basics of Sealing Technology
% x) Y6 n$ v' u% P1 |- e
' a; R& V, ~- [! mApplication fields for fluid seals
3 R% t" c! [' C4 y @. ^. V/ ?% I
- [1 h+ q# X* Y+ W& o+ E) A' @8 d
Seal types
3 v/ e9 Z0 d9 N/ ^" Q7 A# M
$ S: ^8 h+ d$ |0 H4 gSealing mechanism
2 [' A, I3 p3 d2 j8 ^, X: p6 O+ J/ S+ k& C8 c3 N7 M! t! q, H# M
Friction
$ F% H- e! K9 }8 y: p$ X6 d$ V$ G" Z0 w+ K
Parameters influencing sealing mechanism and friction - M/ `* ^/ c3 t: ?/ P
, U/ F z+ u- k8 F- ~& L3 a* M7 P- e& B: w0 `9 i
Sealing Materials 2 i3 L P( J9 W- U
5 Y- z# _% o2 A4 G6 E$ A( fMaterial overview
7 p9 U3 C7 `5 X- u
% t' y+ \9 N3 E3 Z; e$ z4 E% s8 l2 hThermoplastic elastomers 4 @( r/ T; q* e# u
( |. y! t: U3 S$ ~
Elastomers 0 N6 k/ V, \4 W$ {4 }* n
" k/ i0 S# g( e
Thermoplastics
2 r: w L$ X6 L* t& `; I+ ^2 S( d+ n# D) F
4 @6 a/ Y7 m" y
Manufacturing Processes for Seals) Y/ D- ?+ @( d3 n
2 g! W/ W9 z4 S
/ O# [" P0 C& c& r7 oProcessing of rubber and rubber fabrics
. d; l9 G B* \ ]! {7 g4 H, k2 C Z( _' \# z( N3 |
Processing of plastics by injection moulding
; V; I' g* x- j5 T( A. K
7 @5 r' @: v$ e) w3 XProcessing of PTFE : ]3 i) m; d1 \3 D
2 ]3 n8 ] R k; p% NEngineering Design Guidelines
7 X7 x5 f& y3 ^) n9 [, r; @4 P1 L8 }% C7 E
Introduction ( ]% C8 I$ f* C% V. d6 a5 \$ i
4 A5 ~" t9 G/ j% `/ H8 _7 A: A
Basic function of the seal
" u6 b! y$ x) G* k# d
# A4 J5 U. m4 v5 b- ~" S( XSeal assembly
2 Y& h; ~% v7 U$ ]1 z w1 ^- B
* ]; F, M& u2 M) J% f7 {! lSealing surfaces
& H I1 h2 |0 p/ B% p4 c' m) ~
; |+ j) B7 G. A- D; C& F" K6 VGaps
3 c/ J8 S5 q/ x4 R7 w+ M6 V, i
" V8 y( m. D; C) @; _6 OWipers/scrapers ) d6 L! J; T" z
8 ]) D4 {0 Y) t5 E2 t: `# ]0 z9 W1 tFlow turbulences
* c: V$ v( B, I( }* w6 ~
! F( Y: U6 @3 D! {Excess pressure loads 0 y# K+ S! O$ a- r" t
1 z$ h( n/ F! l1 Q H* y7 a+ A* L
“Seal-friendly“ surfaces 8 }+ x# I1 _& U* Z5 l) w% d0 E G
: b0 ^! \ M1 `Concentricity % L& v A( X4 x3 Y! T( H ?+ \
' P8 ~- e4 L5 H- @8 B
Installation spaces for O-rings ( x, P3 d8 V i! z9 g* H; Q* \
2 g. h5 Y- H9 e4 |% N) |Installation spaces for lip seals 3 k& `. Z- [, s- F9 K& j/ c
7 o% r8 f5 \# Q( pInstallation spaces for chevron packings
0 z9 U z0 i: W5 B! }# w6 L# c/ J9 i1 l# P% J( g5 k
Installation spaces rubber-activated coaxial seals9 G( _4 E5 V2 n- W5 N7 O
2 D6 S7 X* R% S* e
4 `0 n3 [) j5 G* e2 MInstallation spaces for compact seals
A+ {4 H s; a
( R5 u& W8 n& Q4 RInstallation spaces for guide tapes , _7 y7 K2 y5 m. s3 j8 L
3 F- h& a7 H1 W6 [! I) `Typical design errors involving seals
, y/ e3 h4 _& X1 L# C
4 c7 T+ \7 S+ \9 ?/ @Favourable design features for seal assembly
, Q" C4 l; ?2 u( ]; D
3 T! x0 Z2 z% Y* k+ h: L C' z, I s3 P, Y. P
Standards , c# v" W$ ]3 c# @' X& `1 ?# W
7 \; p/ U0 H2 }5 R. O
Seal Types
; m" M" e% ?, z" j( ~3 i. Q1 i# n+ B; |1 \& t5 d# J2 _
Hydraulic seals
+ o8 b% ?1 {9 h/ n) s( d) ~6 D4 y# S
Pneumatic seals / y! P+ ?# w+ I9 Q9 ~4 }9 g
3 t `6 @. s" B3 z# Y& m' R/ t
Static seals
8 y5 T1 D9 V) O1 K% [7 t$ C N) i1 G0 u0 t; G7 I8 \
Rotary seals : a, G' |. w; E/ ^* H0 A7 X/ m
) _2 d9 A7 d& E/ x! A0 u; a! i4 m2 [9 Y5 k& h+ O4 L1 M
Application Examples 6 g, s* z; W" t. ^7 V! A3 k
3 A; O( S0 z! DHydraulics 6 Z+ ~; ], e( @: c, D, b& e
6 F, f6 A7 @3 n7 a' hPneumatics ' ^$ Q) e' x$ R; }" S8 n
3 y9 w0 E5 \" X* b+ U1 @+ d
" h; Q( f. Y- w) o0 C' {) dFailures
3 R2 \. W$ L% X
+ h2 `4 E8 H! x- JFailure causes ; Z s6 [8 ^: n" O
4 P- Q8 ]" m" G$ t _( {: p% i6 p% @Failures (examples)
" }$ V" `1 U; I1 O, f1 i# H% m) @: O& C+ Y
' U. L' I: T1 \2 {0 I: iCompany Contacts ' o% P2 \7 M: b) A4 f0 a* d
, v/ e* H; z" B: ]; I
6 r- l, [) f' h. b
; x- F0 C% X" J9 C8 R
. M' i# t1 n. B& y" [3 O# K2 ~
E9 |$ r; S0 A+ m# ]
0 r5 z! C I- I X[ 本帖最后由 schjie 于 2008-10-4 15:53 编辑 ] |
|
发表于 2008-10-4 15:46:34
楼主