(1) Pitting flaking. Tyre is often supported by the roller, the contact between support roller and tyre produces a large stress, and this stress is a local high stress. If the kiln tyre is in the long-term effect of the pulsating stress, it will produce fatigue pitting, and if the pitting expands, it will have a large area of flaking.

(2) Peeling and collapses. The material of the tyre is generally made of carbon steel or 35SiMn, 42CrMnSi and other materials. Casting defects will cause that the axial hardness of the tyre is not uniform and the organization is inconsistent. Under the high load, the parts with loose structure and lower hardness are easy to be crushed, curled and depressed. In addition, the subcutaneous cavities, large loose and blowhole resulted from causing defects will also cause peeling and indentation.

(3) Fracture: Radial or axial fracture of the tyre. The completely radial fracture and the inner arc changes are difficult to repair on site; the axial cracks, if don’t completely split, can be repaired.
 

CHAENG, as a large casting base in northern Henan, produces a huge annual output of steel castings, and has with obvious advantages especially in the support roller and other grinding equipment parts:
Advantages of CHAENG kiln tyre: