Conveyor rubber belt welding
The conveyer belt is composed of reinforcing material (core), core material (adhesive), covering rubber and adhesive.(1) reinforced material (belt core): it is the key of conveyor belt bearing, it determines the tensile strength of conveyor belt, and can absorb the impact of material on conveyor belt.(2) core material (adhesive): it has good adhesive strength between the reinforcing material and fabric layer, and prevents the lamination of the core during use.(3) covering rubber: it has the functions of protecting and reinforcing material, transmitting power, conveying material, absorbing material and resisting abrasion.(4) side rubber: protect the reinforced material from erosion by medium, absorb the extrusion force from the side of conveyer belt, prevent the lamination of core.
The belt of belt conveyor consists of reinforcing material (core), core material (adhesive), covering rubber and adhesive. Delivery method with connection mechanical connection method, cold glue connection method, heat curing connection method three kinds, including mechanical connection and cold glue connection method is only applicable to fabric conveyor belt, heat curing connection method is suitable for all kinds of rubber conveyor belt.
(1) the performance of the belt is divided into ordinary conveyor belt, heat resistant conveyor belt, flame retardant conveyor belt, wear-resistant conveyor belt, anti tearing conveyor belt and cold resistant conveyer belt.The ordinary conveyor belt is divided into three kinds according to the abrasion and impact of the conveyed material, and their codes are H, D and L respectively,H___ strong splitting working conditions; D___ strong wear working conditions; L___ general working conditions.H type: used for conveying at room temperature below 2.5t/m3 below the density of non corrosive large materials.D type: used for conveying density below 2.5t/m3, at room temperature, non corrosive medium and small pieces of material.L type: used for conveying small density, low wear resistance of room temperature, non corrosive powder material.(2) the conveyor belt according to the reinforced materials varieties: steel cord conveyor belt, fabric conveyor belt, steel mesh belt, the fabric conveyor belt and cotton canvas conveyor belt, nylon belt, CC belt, EP NN polyester fiber conveyor belt conveyor belt, GG.(3) the conveyer belt is divided into the whole core conveyer belt, the laminated conveyer belt, the annular conveyer belt, the retaining belt and the pattern conveyer belt according to the processing mode.Laminated conveyor belt core made of natural fiber synthetic fiber to the development direction, development is composed of multi layer direction to less, from low strength and low elastic modulus to the high strength and high modulus, cotton canvas belt CC has been basically eliminated in foreign countries, has gradually been nylon, polyester fabric conveyor belt replaced in china.(4) conveyor belt according to the processing of different points: belt, cutting edge belt.
Connecting method of conveyer belt(1) transport method with connecting to the mechanical connection method, cold glue connection method, heat curing connection method three kinds, including mechanical connection and cold glue connection method is only applicable to fabric conveyor belt, heat curing connection method is suitable for all kinds of rubber conveyor belt.Mechanical connection method: it has the advantages of simple operation and short connection time, but the joint strength is low, generally only 40% ~ 50% of the conveyor belt strength.The cold glue connection method: Based on the adhesive as the raw material, the method of the conveyor belt are connected together, it has high joint strength, no noise, no vibration, simple operation, short time advantages, the joint strength to reach the general strength of the conveyor belt 60% ~ 70%.The heat curing connection method: through the method of conveying belt vulcanizing together, it has high joint strength, long service life, the joint strength to reach the general strength of the conveyor belt from 80% to 90%, but the joint long time.
