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Help CenterCopper Graphite Carbon Brush OMC
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copper carbon brush :
Grade |
Density A/cm³ |
Resistivity uΩ·cm |
Shore Hardness Mpa |
Transverse Strength Mpa |
Contact Vol.Drop ΔU(V) |
Coef.Of Friction |
Current Density A/cm³ |
Normal Max.Surface Speed M/s |
OMC |
6.00 |
7 |
77 |
VVL |
L |
25-30 |
20 |
1. About material :
Aobo Carbon provide carbon brushes in all kinds of applications for OEM customers and end users. Our customers have proven the good quality can keep in long -term use. We are sure to offer you the suitable material.
Graphite material ---- for slip ring of high-speed turbine.
Metal graphite material --- for high load and low voltage motors with less commutation task.
Resin bonded graphite material--- for small and middle sized DC(Direct Current) motors and generator plant.
Electro graphite material -----has excellent commutating performance and self-lubricated functions, ha been widely used in all AC(Alternating Current ) and DC(Direct Current) motors that achieve not only product life but also low wear of commutator or slip ring.
2. Our products are designed to cater for:
a. Various generator plant and motor
b. Overcooled applications
c. High temperature application
3 . Detailed product description:
(1) original manufacture processing
(2)for European,American ,Korean, Japanese etc. engines
(3)high quality,design as your request
(4)competitive price
(5)secure service,delivery timely
1. Why choose us ?
- Technical support - Technical people have experience in this period over 35 years.
-
Material support - carbon graphite, soft graphite, electrographitic , impregnated graphite ,
Resin grapihte, metal graphite, impreganated metal graphite ,
Natural grpahite , Resin bonded .
-
Producing support - Using professinal machines and technological guidance .
2.Can we use our design ?
Yes, you can. After getting your detial design drawings , we do same .
3. Can we mix the different design products ?
Yes, you can modify.
4. Failure cause ?
Technical hitches |
Causation |
Repair |
|
Brush spark |
1.Commutator deformed |
1.Loosen the fastening screws to re-adjust |
2. Copper barbed or sharp edges |
2. Re-chamfer |
|
3. Brush pressure is too small |
3. Adjust or replace the spring pressure |
|
Brush overheating |
1. Brush too much pressure |
1. Adjust or replace the spring pressure |
2. Single Brush pressure imbalance |
2. Replacing different carbon brushes |
|
|
Wear fast |
|
1. Clean commutator |
2. Copper barbed or sharp edges obvious |
2. Re-chamfer |
|
3. Load is too small to form an oxide film |
3. Improve load or minus number of brushes |
|
|
4.Work environment is too dry or too wet |
4.Improve the working environment or replacement brush card |
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