轮胎专题培训.ppt

慢性漏气导致轮胎受损(胎体帘子布脱离) 轮胎在气压极度不足的情况下行驶胎边不但会接地磨耗，而且由于胎边长时间反复屈曲过度导致胎边帘子布及橡胶因过热而剥离，最终导致爆胎。 慢性漏气导致轮胎受损(胎体帘子布脱离) 建议： 按照规定进行充气，并经常检查气压，如果气压过低需要查明 原因,例如：胎面有否扎钉、特别是气门嘴有否老化、断裂。 当碳氢化合物、溶剂或某些酸性物质接触轮胎的橡胶 部分时，就算短时间也会使橡胶产生化学变化，以致发生 膨胀，软化或发粘等现象 。 (十)橡胶退化 谢谢！ * * * * 　 * * * * * * * * * Those illustration shows the each tyre proportions depends on the inflation conditions.Only when tyre inflated properly, tread area contact the ground equally perform as designed.So each improper conditions, will explain later. * This is the typical example of damaged tyre due to low A.P.Excessive heat generated as a result of under-inflation destroyed the adhesion of tyre components caused separation Overdeflection due to under-inflation created abnormal stresses which caused fatigue breaks in the interior cords of tyre. Continued overdeflected operation of a tire in an under-inflated condition caused the fatigue breaks in the inner cords of tyre to progress through the tyre casing rapid air loss. * This is the typical sample of damaged tyre and rim due to overinflation.In China, overloading is very common manner for truck users.To compensate excess loading, customer tend to inflate very high, terrible level, but this over inflation also have a bad effect on tyre performance seriously.Of course, to meet the market requirement, we YRC modified the truck tube tyre this time, However there are limits to everything. So as a tyre manufacture, we strongly recommend to use the tyre under proper load inflation pressure. * Proper inflation is basic to obtain the tyre performance fully.So should be checked periodically and corrected when the tyres are cooled to the outdoor temperature. It is normal for the pressure in a tire to increase as the tyre heats up in service. The amount of pressure increase will be affected by tyre size, type, and operating factors such as speed, load, distance traveled, and surrounding temperature. Generally a build-up of 10 psi to 15 psi should be e