Filled
PTFE Article
[ Features ]
Filled PTFE article is manufactured
by moding method with filled PTFE resin. Filled PTFE resin
is manufactured by compounding PTFE granular resin with
fillers of many differents kinds. Amongst the many fillers
suitable for compounding with PTFE, glass fiber, carbon
fiber, Bronze and also lubricating materials like graphite,
molybdenum disulphide, have been widely used in large scale
production, Broadly speaking PTFE compounds have the following
advantage over unfilled.
PTFE. |
Improved compression strength |
|
Improved thermal conductivity |
|
Dereased thermal expansioin |
|
Improved abrasion resistance |
[ Specifications
]
outside
diameter/Inside diameter × high
(mm) |
outside
diameter/Inside diameter × high
(mm) |
outside diameter/Inside
diameter × high (mm) |
outside diameter/Inside
diameter × high (mm) |
15/10×40 |
71/55×90 |
115/65×100 |
170/100×100 |
30/19×70 |
75/42×150 |
115/75×100 |
172/135×50 |
36/24×50 |
77/55×100 |
117/80×110 |
172/145×115 |
40/18×100 |
79/65×80 |
120/98×70 |
187/159×70 |
40/20×100 |
83/30×100 |
122/102×60 |
205/162×90 |
42/25×100 |
83/60×100 |
125/60×100 |
213/189×100 |
48/36×100 |
84/53×70 |
125/80×85 |
220/170×40 |
49/39×50 |
64/60×100 |
127/86×100 |
229/185×70 |
50/28×100 |
90/68×100 |
129/112×62 |
250/214×100 |
57/40×50 |
93/60×100 |
135/92×65 |
284/250×95 |
60/30×50 |
93/65×100 |
140/100×100 |
290/240×120 |
64/30×50 |
100/60×100 |
141/112×100 |
304/364×50 |
66/45×50 |
100/65×100 |
142/112×100 |
325/285×100 |
66/51×50 |
100/75×100 |
148/118×100 |
390/354×120 |
66/55×50 |
100/84×50 |
150/110×100 |
395/355×50 |
68/42×60 |
102/65×100 |
160/130×65 |
516/468×80 |
69/42×100 |
107/65×100 |
162/126×100 |
578/530×90 |
70/45×50 |
110/50×70 |
164/137×62 |
|
|
110/65×125 |
164/124×60 |
|
[ Main properties ]
Produc No. |
Filled compound and Content
by wt |
Tensie strength MPa(min) |
Ultimate strength %(min) |
Compresive strength MPa(min) |
1 |
20% glass
fiber |
10 |
120 |
16 |
2 |
25% glass
fiber |
10 |
100 |
16 |
3 |
20% glass
fiber 5% graphile |
10 |
120 |
16 |
4 |
60% Bronze |
10 |
80 |
20 |
5 |
15% carbon
fiber |
11 |
130 |
16 |
6 |
24% Bronze
12% glass fiber 6% graphile |
9 |
100 |
16 |
7 |
15% glass
fiber 10% Polyikmide 5% graphile |
10 |
120 |
16.7 |
[ Application of filled PTFE ]
Application |
Necessary proerties |
Suggested grades of filled
PTFE |
Gaskets |
Creep resistance,
chemical resistance |
#1 #2 #3
#5 |
Valve seas |
Creep resistance,
Lowfriction, chemical resistance |
#1 #2 #3
#5 |
Packings |
Creep resistance,
Lowfriction, Low wear, chemical resistance,
stiffness |
#1 #3 #5
#7 |
Bearings |
Low wear,
Lowfriction, Creep resistance |
#1 #4 #5
#6 |
Bearing Pads |
Creep resistance,
Lowfriction, resistant to weathering |
#3 |
Piston rings |
Creep resistance,
Lowfriction, chemical resistance, stiffness |
#1 #2 #3
#5 |
|