During the use of conveyor belts, damage is inevitable, and there are many forms of damage, such as: edge delamination, festering, defects and cracks; long-distance longitudinal tearing, deep scratches, holes, large-area wear, covering Bulging or peeling, internal defects in joints, etc. Among them, the longitudinal tear is the most urgent, the edge damage is the most common, the inherent defects of the joint are unavoidable, and the service life after repair is the most concerned.

The commonly used repair methods for conveyor belts mainly include the following three ：

• Hot repair method: Usually, special repairers, vulcanizers and hot vulcanization materials suitable for conveyor belts are used to repair the damaged parts of the conveyor belt with equal strength “no trace”. This kind of repair can completely eliminate the damage of the conveyor belt and restore it to its original state. It is suitable for more important, long-distance, high-speed, and large-volume transportation systems. Of course, specialized equipment and professionals are required to complete this type of maintenance. It is the most reliable and ideal method for conveyor belt maintenance.

• Cold repair method: Usually, special cold adhesives, repair films and special tools for conveyor belts must be used to fill in the damaged parts of the conveyor belt to achieve the purpose of continuous operation. Obviously, this infill repair is a stopgap measure. Therefore, its main purpose is: when the conveyor belt is damaged, timely cold repair can prevent the damaged part of the conveyor belt from continuing to expand and extend, so as to effectively protect the core of the conveyor belt from damage, so as to wait and obtain Time and opportunity for repairs.

• Mechanical repair method: Usually, clips, nails, connecting plates and screws or metal cords and special appliances made of metal materials are used to fix or connect the damaged parts of the conveyor belt to achieve the purpose of maintaining operation. Even in many times and many occasions today, this seemingly simple, rough, and even ugly treatment method can play an emergency function and achieve twice the result with half the effort.