What are the reasons for cracking of rubber joints explained by luoying?

Rubber joints may crack in the process of use, so what are the common reasons?
1.Rubber joints in the production process, due to excessive stretching, wire rope rust and other external factors, the rubber properties change, the rubber strength decreases and cracks may occur.
2. The strength of the connecting part of the rubber joint is relatively low, and if the connection method is not accurate, it may also crack.
3. When installing rubber joints, cracks may appear due to pipeline displacement exceeding rubber joint offset.
4. The rubber joint may also crack if the connection length is insufficient during use, forced to exceed the connection length, and the contraction range is expanded at will.
5. After installing the rubber joint, the free pulling band elsewhere in the pipeline exceeds the expansion range and may also rupture
6. The installation of rubber joints should be carried out under the guidance of technical personnel, and incorrect installation may also produce cracks.
7. Rubber joints are affected by outdoor bad weather, tanning, etc., and lower than the use temperature may also rupture.
8. Poor function of the rubber rubber used in the vulcanization process, self-sulfur failure, excessive grinding, corrosion of steel wire rope, etc., the strength of the joint is greatly reduced and it is easy to fracture when used.
9. Rubber joints aging for a long time under strong light is also the cause of rubber joint rupture.