Rubber hose is a kind of flexible pipe made of rubber material. It has good flexibility and elasticity and can bear certain pressure and tension. Rubber hoses are widely used in petroleum, chemical, mechanical, metallurgical, marine and other fields, used to transport liquid, gas and solid materials, especially in the need for flexible layout and installation of the occasion plays an important role.
In the use of rubber hoses, the properties of rubber will change due to the comprehensive influence of various factors, which will cause the properties of rubber and its products to decrease gradually with the change of time until they are damaged and lose their use value, this process is called rubber aging. The aging of rubber tube will cause economic loss, but to reduce these losses, through slow aging to extend the life of rubber tube is one of the ways, in order to slow aging, we must first understand those factors that cause aging of rubber tube.
Aging hose
1. Oxidation reaction is one of the important reasons for rubber aging, oxygen will react with some substances in the rubber tube, resulting in the change of rubber properties.
2. Increasing the temperature will accelerate the diffusion of nutrients and accelerate the rate of oxidation reaction, accelerate the aging of rubber. On the other hand, when the temperature reaches the corresponding level, the rubber itself will have thermal cracking and other reactions, which affect the performance of rubber.
Oxidation causes aging
3. Light also has energy, the shorter the light wave, the greater the energy. One of the ultraviolet is a high-energy light, rubber can play a destructive role. The free radical of rubber occurs because of the absorption of light energy, which initiates and accelerates the oxidation chain reaction. On the other hand, light also plays a role in heating.
UV damage to rubber
4. When rubber is exposed to wet air or immersed in water, the water-soluble substances in rubber will be extracted and dissolved by water, especially in the case of water immersion and atmospheric exposure, will accelerate the destruction of rubber.
5. Rubber is repeated action, the rubber molecular chain may break, accumulate into many may cause the rubber tube crack and even break.
These are the factors that will lead to the aging of the rubber hose, the appearance of a slight rupture is aging performance, continuous oxidation will make the rubber hose surface brittle. As the oxidation continues, the embrittlement layer will also deepen, showing the use of micro-cracks appear in the bending. In this case, should be timely replacement hose.
Post time: Aug-13-2024