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| • PRODUCT >> Copper Alloy Buried Solid Lubricating Bushes |
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Introduction |
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No.500 buried solid lubricating bushes is a kind of high-strength copper alloy,
which the developed casting techniques are adopted.The solide lubricant used
in the bushes is specially compounded.The bushes are heat-resisting and can
bear heavy load. Which are widely used in metallurgical industry.mining machine,petroleum machine,genrating machine,etc. |
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Kinds |
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| Solid Lubricants |
kinds |
General |
High temp |
Sea water
High pressure |
Composition |
Natural Graphite
MoS2 |
Artifical Graphite
Non ferrous
Metal oxide |
Natural Graphite
P.T.E.E Paraffin
wax.etc. |
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| Base Metal |
Mark |
SP |
B |
F |
Material |
HB2C4 |
BC6 |
FC25 |
Main
Applications |
General
Water
High pressure |
General
Speed |
High temp
(+400℃) |
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| Mechanical Physical Properties |
Properties |
Unit |
No.500Sp |
No.500B |
No.500F |
Specific gravity |
g/cm3 |
8.2 |
8.7 |
7.2 |
Thermal expansion ratio |
x10-5/℃ |
1.6-2.0 |
1.6-1.8 |
1.0-1.2 |
Thermal conductivity |
cal/sec.℃.cm |
0.09-0.03 |
0.11-0.15 |
0.1-0.13 |
Tensile strength |
kgf/mm2 |
77 or higher |
20 or higher |
15 or higher |
Impact strength |
kgfcm/cm2 |
400~500 |
400-500 |
20-40 |
Compressive strength |
kgf/mm2 |
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45 or higher |
Hardness |
HB |
210 or higher |
60 or higher |
180 or higher |
Vertical elastic coefficient |
x104kg/mm2 |
100~400 |
95 |
100-130 |
Elongation |
% |
12 or higher |
15or higher |
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Friction coefficient |
u(min) |
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0.03 |
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| Application Range |
Kinds |
Lubricating Condition |
Allowable max.load
(kgf/mm2) |
Allowable max.speed
(m/mm) |
Allowable max.PV Value
(kgf/mm2 · m/min) |
Temperature
(+oC) |
No.500SP |
Non lubrication |
250 |
15 |
1,000 |
250 |
500 |
15 |
2,000 |
Normal |
Periodical lubrication |
250 |
50 |
1,500 |
250 |
Dripping lubrication |
250 |
100 |
2,000 |
250 |
No.500B |
Non lubrication |
150 |
25 |
600 |
400 |
Periodical lubrication |
150 |
150 |
1,000 |
250 |
Dripping lubrication |
150 |
250 |
2,000 |
250 |
No.501F |
Non lubrication |
50 |
15 |
400 |
400 |
Periodical lubrication |
80 |
100 |
800 |
300 |
Dripping lubrication |
80 |
100 |
1,000 |
300 |
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