Factors Affecting The Performance Of Ring Chain

In the operation process of the scraper conveyor belt, the ring chain bears the tension, and in addition, the friction force is formed with the intermediate trough, coal block and sprocket. The connection of each ring in a chain's own activity. Because the single pulse not only forms sliding friction, but also pulls each other tight and forms compressive internal stress. The two straight edges of the ring are strained. The curved edge is subjected to tension, the inner side of the straight edge and the curved interface is subjected to pressure, and the curved end bears the shear force along the middle section surface of the hard direction. The ring chain passes through the sprocket, and in the operation, it always bears the pulse load of similar frequency as the number of teeth of the sprocket. This type of load will suddenly become larger when the card chain is generated, that is, the vibration amplitude will increase, which will cause the ring chain to break. On the other hand, the ring chain bears great internal stress when it passes through the sprocket.

Several elements that interfere with the characteristics of the ring chain:

(1) The quality of stainless steel plate of the ring chain: under the condition that the geometric specifications and composition of the ring chain stainless steel plate meet the standards, if the non-metallic material slag inclusion in the metallographic organization of the supply situation exceeds the requirements. Austenite crystal pull more than 5, there will be poor laser welding characteristics and other conditions, Tai 'an chain production factory;

(2) Ring chain laser welding process performance: such as cracks, creases, burns, etc.;

(3) Heat treatment method of ring chain;

(4) the pre-tensile internal stress of the ring chain;

(5) The workpiece conditions of the ring chain.