Ko te ratonga ratonga o nga rauemi whakaheke (papa pereti i nga papa o te ceramic) tetahi atu mea nui. I runga ano i te momo o te papanga panui me nga tikanga o te whakamahinga, he rereke hoki nga whakaritenga. For example, how many kilometers of mileage are required for car brake pads?

Wear depends on the conditions of friction and the state of friction. The friction material is mostly in the form of dry friction, and this friction condition without lubrication is a harsh condition for the friction pair, which will inevitably cause wear and increase the matching gap, and affect the braking performance. And under normal circumstances, the wear of the friction pair is uneven wear, and the wear gap caused by all wear is also uneven, which is prominent on the drum brake. The non-uniformity of friction changes the distribution of brake pressure and increases the non-uniform wear of friction pairs. In addition, the friction heating of the braking process and the dust of the operating environment into the friction pair will cause the process of driving wear, which is thermal wear, abrasive wear, adhesive wear, fatigue wear and so on play a role at the same time, that is, wear is inevitable. Heoi, ko te nui me te tere o te kakahu ka taea te whakahaere, na te mea ko te tere o te kakahu ka whakawhirinaki ki te maha me te kaha o te whakamahinga, te whakamahi i te taiao me te taumata whakamahi me te taumata whakamahi.