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Heat Resistant Conveyor Belt

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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.

2、Heat resistant conveyor belt physical property of the cover rubber after heat test shall conform to the values specified in the table.

Item type
 
type I
type II type III
variable range
Hardness Difference before and after aging (IRHD)
±20
 
 Max. Value after aging (IRHD)
85
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% ≤
50 55
Min. value after aging 200 180

3、Heat resistant conveyor belt abrasive wear of the cover rubber

 Type
 
Item
level
Abrasive wear
 
type I
 
type II
 
type III
 
First quality
0.8 1.0 1.0
 
accepts
1.0 1.2 1.2

4、Heat resistant conveyor beltlayer to layer adhesion strength

 
Item
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
 

 

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