Heat-resistant conveyor belt
·1、standard is same as the normal conveyor belt
·2、the products executes HG2297-92 standard
·3、heat-resistant conveyor belt is divided into three types：
Type 1: test temperature is no more than 100℃. Code name T1
Type 2: test temperature is no more than 125℃. Code name T2 Type 3: test temperature is no more than 150℃. Code name T3
（1）Physical properties of covering layer are accord with regulation in the form |
|
Item
|
Type |
|
Type1 |
Type 2 |
Type 3 |
|
Change area |
|
Strength
|
Difference between before aging and after aging （IRHD）
|
20 |
±20 |
|
Maximum value after aging （IRHD）
|
85 |
|
Tensile strength
|
Fall of property change rate,%
|
25 |
30 |
30 |
|
The minimum value after aging, MPa
|
12 |
10 |
5 |
|
elongation
|
property change rate, %
|
50 |
55 |
|
The minimum value after aging, %
|
200 |
180 |
| （2）abrasion loss of covering layer: |
| Item |
abrasion loss |
| Grade type |
Type1 |
Type2 |
Type3 |
| First-class products |
0.8 |
1.0 |
1.0 |
| Qualified product |
1.0 |
1.2 |
1.2 |
| （3）layer adhesive strength: |
|
Item
|
Layer of cloth
|
Covering layer and cloth layer
|
|
Thickness of covering layer ≤1.5mm
|
Thickness of covering layer ＞1.5mm
|
|
The average value of longitudinal test sample ≥
|
3.0 |
2.2 |
2.6 |
|
Minimum value of longitudinal test sample ≥
|
2.0 |
1.6 |
2.0 | |
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