ZhongBo Industry and Mining Machinery Co.,Ltd is mainly engaged in the r&d, manufacturing and sales. Leading products are common, heat-resistant (high temperature), acid and alkali resistant, oil resistant, cold resistant, wear resistant, different properties such as general flame retardant cotton canvas (CC), nylon (NN) conveyor belt, polyester (EP) flat and large dip Angle gear sideband, with decorative pattern, such as conveyor belt. Conveyor belt is in use process, because of the influence of various external environment will produce different degrees of aging, damaged, there are many reasons for.
Hot: raise the temperature could lead to thermal cracking of rubber or thermal crosslinking. This is a widespread aging - hot oxygen aging.
The shorter the light: light waves, the greater the energy. Damage effect to the rubber of the high energy ultraviolet ray. Ultraviolet (uv) light to play the role of a heating. Light effect its another characteristic (unlike thermal effect) mainly in the rubber surface into life. Samples containing high adhesive rate, reticular crack will appear on both sides, namely the so-called "light outer crack".
In rubber and rubber molecules: oxygen free radical chain reaction, the chain break or excessive cross-linking, a change of rubber performance. Oxidation is one of the important reasons for the aging of rubber.
Mechanical stress: conveyor belt under the action of repeated mechanical stress and roller friction process from time to time, can make the rubber generates free radicals, molecular chain fracture caused by oxidation of chain reaction, formation of chemical process. Mechanical fracture of molecular chain and mechanical activation process. Which can be an advantage, depending on its condition. In addition, the stress under the action of ozone is easy to cause crack.
Water: the role of water have two aspects: the rubber in the humid air in the rain, or soak in the water, and easy to damage, this is because the group composition such as rubber and water soluble substance in the water extraction dissolved by water. Hydrolysis or absorption causes especially water immersion and atmospheric exposure under the action of alternating, will accelerate the destruction of the rubber. But in some cases the moisture damage to the rubber is not effect, even has the effect of delaying aging.
Chemical activity of ozone, ozone is much taller than oxygen, more destructive, is to make the same chain break, but the role of ozone on the rubber is different according to the deformation of rubber or not. As used in the deformation of rubber is mainly unsaturated rubber), a crack perpendicular to the direction of stress, known as the "ozone cracking" role in the deformation of rubber, just appearance generates oxidation film but not cracked.
Other: the effect factors of rubber and chemical medium, intending to metal ions, high-energy radiation, electricity and biology etc.