In the case of broken belts in the use of polyamide flat belt, the form of the joint, the jointing process and the quality of the joint have a great influence on the strength of the joint. Practice shows that most of them occur at the joints, so a lot of experimental research work has been carried out on the joints of the newly developed steel core conveyor belt, in addition to the necessary tests on the belt's anti-tearing, impact resistance, flame retardant properties, hygiene features, anti-static and so on, and on the joints of this high-strength grade of polyamide flat belt. Polyamide flat belt joints are subjected to the same alternating stresses as the body of the belt during operation. The form of damage under such alternating stresses is very different from that under static load.
An introduction to the security of polyamide flat belt| Yonghangbelt
2022-09-09
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The maximum internal stress in a polyamide flat belt joint exceeds the limits of the data before the joint is pulled off. The joints of polyamide flat belt, on the other hand, have a high static strength despite the static load. The internal stress is much lower than the limit of the material, however, under the effect of alternating stress, after temporary repetition, it will also present the phenomenon of belt breakage, which is the fatigue breakage ring. Since polyamide flat belt joints are subjected to alternating stresses, it is not enough to determine the static strength of polyamide flat belt joints and this should not be used as a basis for evaluating the strength of conveyor belt joints, but rather the fatigue test of dynamic strength. With the development of polyamide flat belt conveyors to high strength, high capacity and high speed, this test is even more important today.
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