1, mechanical joints: generally refers to the use of belt buckle joint, the joint method convenient convenient, also compare the economy, but the low efficiency of joint, usually used for requiring short maintenance time, joint strength can reach 40-50% of the conveyor belt itself, easily damaged, has certain influence on the service life of conveyor belt products, and cold glue joint can reach 70-80%, hot vulcanization joint can reach 80-90%. The cutting end of conveyor belt is affected by moisture and materials, which will bring harmful effects to the belt. The surface is uneven, making the conveyor use certain equipment (such as the plough type discharging device, scraper type sweeper, etc.) limited. PVC and PVG whole core flame retardant conveyor belt joints, the general level 8 products with the following products adopt this joint method.
2. Normal temperature and cold adhesion joint: that is, the cold adhesive is used to carry on the normal temperature joint. Method is more efficient than mechanical joint, the joint strength, also compares the economy, compared with hot vulcanized adhesive has the construction is convenient, rapid, high initial curing at room temperature strength, ratio of prominent characteristics. But it is high in temperature and humidity. From the practice, as long as the use of fine adhesives, strictly follow the operation process joint, can achieve better joint effect. This method is suitable for the connector of most canvas (CC), nylon (NN), polyester (EP), etc.
3. Hot vulcanization joint: this kind of joint method can guarantee high joint efficiency, smooth and no gap, but also very stable, and the connection life is very long. However, there are disadvantages such as complex operation process, high requirement for personnel (simple short-term training for cold adhesive process), high cost and long connection time. The PVC and PVG core flame retardant conveyor belt and the steel wire rope core (ST) of the class 8 belt are used in this method.
4. Joint of the layered conveyor belt (CC/NN/EP) : mechanical joints, normal temperature and cold joint, hot vulcanization joints and other joint methods can be used as required. General cold stick joint and hot vulcanization joint are made of bench joint.
5. Joint of PVC and PVG core flame retardant conveyor belt:
Because the structure of the whole belt is special, the connector is not easy, so most of the use of mechanical joint method, namely belt buckle joint. But the conveyor belt above level 8, in order to ensure the joint effect, generally still adopts the method of hot vulcanization joint. The joints are constructed of finger joints. The hot vulcanization joint process of PVC and PVG core flame retardant conveyor is more complex and the requirements of equipment are high.
6, the steel cord conveyor belt (ST) : the joint of steel cord conveyor belt conveyor belt (ST) is the joint of all joint technology the most complex, process is more complex, not only the design of the size parameters of the joint is also the most. Different levels of products have different connectors.