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Help CenterFire Resistant Fabric Conveyor Belt
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Fire Resistant Conveyor Belt, Coal Mine Steel Cord Belt, Chemical Resistant Fabric Conveyor Belt Manufacturer
1. Applications
Fire resistant conveyor belt is suitable for transporting non-corrosive, not sharp, lump, granular, powdery materials in flammable and explosive environment on the ground. It applies to power plant, coal mine, chemical industries.
2. Physical Properties of Rubber Cover (before ageing)
Grade |
Tensile Strength/Mpa ≥ |
Breaking Elongation/% ≥ |
Abrasion Loss/mm3 ≤ |
D |
17 |
450 |
175 |
L |
14 |
400 |
200 |
Note:Grade D-used for transporting highly abrasive materials.Grade L-used for transporting medium-abrasion materials. | |||
After-ageing properties of rubber cover(70℃, 7days):
Tensile strength and breaking elongation are both not lower than 75% of before-ageing values.
3. Ply adhesion
Item |
Ply to ply |
Rubber cover to ply |
|
Rubber cover thickness ≤1.5mm |
Rubber cover thickness >1.5mm |
||
All samples average value/ (N/mm) ≥ |
4.5 |
3.2 |
3.5 |
All samples min peak value/ (N/mm) ≥ |
3.9 |
2.4 |
2.9 |
Note: All samples max peak value is not more than 20N/mm. | |||
4. Full-thickness Tensile Properties
a、Longitudinal tensile strength, not less than the below table. (N/mm)
Nominal belt type |
160 |
200 |
250 |
315 |
400 |
500 |
630 |
800 |
1000 |
1250 |
1600 |
2000 |
2500 |
3150 |
b. Full thickness, longitudinal elongation at reference force, not more than 4%。
c. Straightness not more than 25mm
5. Safety property
Item |
Fire resistant grade |
||
K1 |
K2 |
K3 |
|
Duration of flame |
Total value of flame duration of 3 samples with covers plus 3 samples without covers, not more than 45s. Any single value with covers not more than 15s, any single value without covers not more than 20s. |
Total value of flame duration of 6 samples with covers, not more than 45s, any single value not more than 15s. |
Average value of flame duration of 3 samples with covers, not more than 60s. |
Static conductive properties |
≤ 3×108Ω |
||
Reappearance of flame |
not allowed in any sample |
||
Huayue started business by producing rubber belts since 1982. It has been one of Solid Woven Conveyor Belts manufacturers and is the major factory of fabric conveyor belt and Steel Cord Conveyor Belt in China.
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