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According to the framework material:
Nylon (NN) fabric flame retardant conveyor belt
Polyester (EP) fabric flame retardant conveyor belt
It is widely used in coal, mining, port, metallurgy, electric power, chemical industry, casting, building materials and other industries and places. It is especially suitable for material transportation in surface coal washing plant, power plant and non coal underground mining. It is used to transport non corrosive bulk, granular and powder materials, bulk materials or finished articles.
Nylon (NN) canvas core flame-retardant conveyor belt has the advantages of light weight, good elasticity, high strength, impact resistance and grooving. It is suitable for conveying materials in medium and long distance, large volume and high speed.
Polyester (EP) canvas core flame retardant conveyor belt has high initial modulus, good thermal stability of belt body size, high strength, small elongation and impact resistance, which is suitable for conveying materials in medium and long distance, large volume and high speed.
| Item | Type | |||
| NN、EP | ||||
| Adhesion strength | Between coating and fabric cores | Thickness of coating＞1.5mm≥ N/mm | 3.5 | |
| Thickness of coating 0.8~1.5mm ≥ N/mm | 3.2 | |||
| Between layers ≥ N/mm | 4.5 | |||
| Longitudinal tensile strength value of full thickness belt /N/mm | 160~3150 | |||
| Elongation of longitudinal reference force of full thickness belt/ % ≤ | 4 | |||
| Coating performance | D
(high wear) |
L
(moderate wear) |
||
| Breaking strength/ MPa ≥ | 17-18 | 14 | ||
| Elongation at break/ % ≥ | 450 | 400 | ||
| Abrasion / mm3 ≤ | 175 | 200 | ||
| Aging test (70 ℃× 168h)
Median value of tensile strength and elongation at break |
It shall not be less than 75% of the corresponding value before aging. | |||
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