Heat resistant conveyor belt is made of the multi-ply rubber polyester cotton canvas covered with the high temperature or heat resistant rubbers, which are bonded through high temperature vulcanization, it is applicable to conveying of the coke, cement, clinker and hot casting etc.
1、Heat resistant conveyor belt’s specifications are identical with the conventional conveyor belt.
2、Heat resistant conveyor belt shall be in accordance with HG2297-92.
3、Heat resistant conveyor belt contains three types.
Type I; it is able to resist the test temperature of no more than 100℃, the max. short-time operating temperature is 150℃，the symbol is T1.
Type II; it is able to resist the test temperature of no more than 125℃, the max. short-time operating temperature is 170℃，the symbol is T2.
Type III; it is able to resist the test temperature of no more than 150℃, the max. short-time operating temperature is 200℃，the symbol is T3.
Type IV; it is able to resist the test temperature of no more than 175℃, the max. short-time operating temperature is 230℃，the symbol is T4.
|type II||type III|
|Hardness||Difference before and after aging (IRHD)||±20|
Max. Value after aging (IRHD)
|Tensile strength||variable rate in performance ≤||25||30||40|
|Min. value after aging Mpa||12||10||5|
|Rate of elongation at break|| |
variable rate in performance% ≤
|Min. value after aging||200||180|
|interlayer of cloth||cover layer and cloth interlayer|
|Thickness of the cover layer≤1.5mm||Thickness of the cover layer＞1.5mm|
|The average value of the longitudinal specimen shall be no less than||3.0||2.2||2.6|
|The peak value of the longitudinal specimen||2.0||1.6||2.0|