Fluvis is an antifriction composite of enhanced wear-resistance based on fluoroplast-4 and modified carbon fibres.

The material is remarkable for its chemical resistance, high thermal stability, low coefficient of friction, high wear resistance and high sealing ability. It is intended for manufacturing of friction unit parts: sealing elements of compressors and pumps, friction-type bearings and ball stop valves. It can be used in air and liquid media, in dry and wet gases and can be utilized in vacuum in the temperature range from minus 200 to plus 280 °С.

The main advantage of articles produced of Fluvis compared to articles of steel, bronze, cast iron, graphite and polymer materials is their ability to operate without lubricant. Fluvis enables dramatic extension of service life of any dry friction units totally excluding counterbody wear.

Physical and mechanical properties of Fluvis materials

Properties

Fluvis 20

Vako-fluvis

(containing MoS2)

Super-fluvis

Density, kg/m3

1950 - 1980

2000 - 2100

2000 - 2080

Compressive strength, MPa

90 - 100

110 - 120

120 - 125

Stress at 10% strain (compression), MPa

27 - 30

30 - 32

35 – 36

Compression yield strength, MPa

18 - 21

18 - 21

22 - 25

Tensile strength, MPa

21 - 26

24 - 25

30 - 33

Compressive modulus, MPa

260 - 280

540 - 760

650 - 800

Wear, 10-7 mm3/N*m

2.2 – 4.5

0.5 – 1.5

1.2 – 1.5

HB hardness, MPa

58 - 63

-

74

Wear resistance was determined on compressor piston seal at the pressure of 20 MPa without using cylinder lubricant at the reciprocation rate of 240 rpm and the delivery temperature of 150 °С. In these conditions, wear rate equaled 0.07 mm/1000 h.

So, its wear resistance is 2.5 times higher than that of Flubon and 12 times greater than that ofФ4К20. It is superior to materials produced by foreign companies such as Garlock (Germany) and SPL (England).

Range of billets produced of Fluvis

Outside diam. × inside diam.

Outside diam. × inside diam.

Outside diam. × inside diam.

Outside diam. × inside diam.

1

24×14

24

75×58

47

145×90

70

265×245

2

32.5×14

25

80×50

48

145×115

71

285×209

3

32.5×15

26

80×48

49

155×80

72

285×150

4

32.5×16

27

90×35

50

155×133

73

285×250

5

40×20

28

90×40

51

155×115

74

290×230

6

42×18

29

90×55

52

165×60

75

315×260

7

42×25

30

95×55

53

165×90

76

320×250

8

48×25

31

100×25

54

165×115

77

340×209

9

48×33

32

100×40

55

165×128

78

340×260

10

56×20

33

100×50

56

170×110

79

340×270

11

56×22

34

100×60

57

170×140

80

340×300

12

56×30

35

100×76

58

190×60

81

360×315

13

56×36

36

110×76

59

190×125

82

395×315

14

62×20

37

110×85

60

190×130

83

395×340

15

62×25

38

120×25

61

190×160

84

395×360

16

62×30

39

120×40

62

200×50

85

430×360

17

62×36

40

120×60

63

200×125

86

430×375

18

62×42

41

120×70

64

200×150

87

450×390

19

67×48

42

126×70

65

230×125

88

519×455

20

70×30

43

126×76

66

230×180

89

850×770

21

75×25

44

130×95

67

240×200

90

950×870

22

75×40

45

135×80

68

255×150

23

75×45

46

135×90

69

255×180

Range of rods

Diameter

Diameter

Diameter

Diameter

1

20

6

62

11

120

16

230

2

23

7

70

12

125

17

255

3

32.5

8

80

13

145

4

40

9

90

14

155

5

56

10

100

15

200