Heat-resistant rubber comes into close touch with high-temperature materials, and its heat resistance influences the conveyor belt's heat resistance. Heat-resistant conveyor belts below T2 (125 degrees Celsius) often employ SBR as the principal rubber, whereas those over T3 (150 degrees Celsius) must use high-temperature rubber.
According to relevant surveys, the most widely used high-temperature resistant conveyor belts are EPR and IIR, however, the price of IIR is very high, and the process performance is also bad. EPR's heat resistance and price, as well as EPM's molecular characteristics, are more suited. At a high temperature of 175, it is stable and may be used for a long period. Because of the sluggish vulcanization speed, it is usually mixed with EPDM to increase production efficiency.
Conveyor Belt Vulcanization System Selection
To improve the high-temperature resilience of EPR, boost cross-linking efficiency, and improve the performance of vulcanized rubber, a co-crosslinking agent must be added to the peroxide vulcanization system.
The co-crosslinking agent can avoid propylene chain rupture in the main chain of EPM vulcanization, lower rubber viscosity, and improve the vulcanized rubber's physical and mechanical qualities. Furthermore, sulphur can be utilized as a co-vulcanization system to improve vulcanization speed and tearing performance, however, due to its low solubility in EPDM, it is easy to spray oil and difficult to employ. It should be kept under 1.5 parts per million.
Transported Material's Nature
A conveyor belt's average lifespan under ideal conditions ranges from three to 10 years, depending on length, transfer design, and other factors. The type of items being moved can also have a big impact on how long a belt lasts. Sharp, jagged, abrasive materials, for example, can destroy the belt considerably more quickly. This is why it's critical to select a belt that's been built precisely for your application and is properly supported in the loading zone.
Corrosion-Resistance
Yes, belts can corrode, especially those with metals in their composition. While corrosion is less of a concern in a climate-controlled environment, it can be a problem on underground conveyors where temperatures, UV light, moisture levels, and humidity are all subject to change.
Diameter Of The Pulley
There is a manufacturer-recommended pulley diameter that you'll need to consider based on the thickness of the belt cloth from top to bottom.
Composition Of A Conveyor Belt
Conveyor belts are typically made up of three layers:
The top layer, sometimes known as the cover, is where the product rests during transit. The carcass is the middle layer, which aids in the stability of the belt. Metal or woven cloth is commonly used for the carcass. Then there's the bottom cover, which finishes off the belt's look.
The Final Thoughts
It's critical to seek out manufacturers who are committed to reducing downtime and increasing output. To provide the best production performance, they should follow through with a tight quality assurance program from original tool fabrication to belt completion. The weaving tool engineering is a key differentiation in the production process. They should be able to manufacture the thinnest and most precise belt specifications in the industry thanks to upgraded technology and specialized heat treatment. Ensure to look for metal wire mesh to keep you covered.
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