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如何解决刹车抖动的问题?- How to solve the problem of brake vibration?

作者:广州星展汽车配件有限公司 浏览: 发表时间:2019-04-10 14:54:39

如何解决刹车抖动的问题?

  踩刹车时,刹车踏板产生抖动,相信很多车主都遇到过,有些情况属于“偶发事件”,过几天就消失了,而有些却一直存在,影响驾驶舒适性和行车安全。


刹车抖动故障产生的原因之一

刹车抖动故障产生的原因之一,是由于刹车盘表面存在深浅不一的沟槽,这些沟槽是刹车片和刹车盘摩擦产生的。如何解决这个问题呢?通常的做法是更换刹车盘。

有些修理厂为了降低车辆维修费用,利用机床对刹车盘进行抛光修复,如果刹车盘磨损程度不大,这种方法也可以采用。

刹车盘为何会产生抖动?

有些刹车抖动是在更换刹车片后出现的。如果只更换了刹车片,新刹车片表面平整,而旧刹车盘表面存在很多沟槽,因此它们之间的贴合情况并不好。踩刹车时,刹车盘表面沟槽导致刹车效果不好,而且可能会出现抖动。

因此需要一段时间的磨合,新刹车片与旧刹车盘之间形成了表面造型的互补,接触面积才会逐渐变大,刹车效果才能达到最佳,刹车抖动现象可能会消失。在更换刹车片的同时更换刹车盘,或使用机器将刹车盘表面抛光,可以降低出现刹车抖动的几率。

刹车盘何时需要更换?

在刹车系统中,刹车盘可以说是更换周期最久的一个,刹车盘能用多长时间主要取决于行驶的路况和驾车习惯。

刹车盘并没有磨损提示功能,只能通过测量表面沟槽的深度来判断是否需要更换,当刹车盘双面的总磨损深度达到规定的最小厚度时,建议及时更换刹车盘。按照经验,通常在更换二次刹车片后需要更换一次刹车盘。

如何进行刹车盘修复?

刹车盘修复,通常是利用机床对刹车盘进行抛光或打磨,也有刹车盘修复专用的光碟机,修复过程和效果大致相同。

对于磨损程度未达到更换标准的刹车盘,可以采取刹车盘修复的方式,特别是一些高端品牌车辆,刹车盘的价格多在千元以上,所以采取刹车盘修复的方法比较划算。


但是,进行刹车盘修复时需要选择维修质量有保障的修理厂,如果是技术不过关的修理厂,进行刹车盘修复后不但不能解决刹车抖动的问题,还可能会出现新问题,这是因为在修复过程中,刹车盘没有正确安装,使得打磨后刹车盘表面厚度不一致。

刹车盘修复后如何驾驶?

修复后的刹车盘表面较为光滑,短时间内会存在刹车效果较差的情况,经过一段时间的磨合就会逐渐恢复正常。车盘表面有磨损痕迹是正常的现象,只要不产生抖动等问题就无需处理,如果担心抛光后的刹车效果,建议还是更换刹车盘。


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How to solve the problem of brake vibration?

  Many car owners have surely experienced brake pedal vibrating when the brakes are applied. Some cases are "incidental" and disappear within a few days. Some persist, affecting driving comfort and driving safety.


One of the causes of brake vibration

One of the causes of brake vibration is the presence of deep or shallow grooves on the surface of the brake disc. These grooves are caused by friction between the brake pad and the brake disc. How to solve this problem? The usual practice is to replace the brake disc. In order to reduce vehicle maintenance costs, some repair shops use the machine tool to polish the brake discs as an alternative. This method can also be employed if the brake discs are not worn out.

Why does the brake disc vibrate?

Some brake vibrations occur after the brake pads have been replaced. If only the brake pads are replaced, the new brake pads with a flat surface will not properly fit the old brake discs that have many grooves on the surface. When the brakes are applied, the grooves on the surface of the brake discs result in poor braking performance, and vibrations may occur. 

Therefore, a period of running-in is required to make the surface pattern of the new brake pad and the old brake disc fit, so that the contact area gradually becomes larger to achieve the optimal braking effect, and the brake vibration may disappear. Replacing the brake discs together with the brake pads, or using the machine tool to polish the surface of the brake discs can reduce the chance of brake vibration.

When does the brake disc need to be replaced?

In the brake system, the brake disc can be said to have the longest replacement cycle.How long the brake disc can last depends mainly on the driving conditions and driving habits.


The brake disc does not have a wear indication function, and need for replacement can only be evaluated by measuring the depth of the grooves on the surface. When the total depth of wear on both sides of the brake disc reaches minimum, it is recommended to replace the brake disc in a timely fashion. Based on experience, it is usually necessary to replace the brake disc once after replacing the brake pads twice.


How to perform brake disc repair?

Brake disc repair usually involves using the machine tool to polish or finish the brake discs, and also uses the special disc repair lathe. Both have similar repair process and effect.

The brake disc repair method can be adopted for the brake disc whose degree of wear has not met the replacement criteria. This method is more cost-effective especially for some high-end brand vehicles, for which the brake disc costs more than one thousand yuan.

However, it is necessary to choose a repair factory with reliable repair quality to repair the brake disc. Instead of solving the brake vibration, a repair factory with sub-par technology may cause new problems after repairing the brake disc. This is because the brake disc is not properly installed during the repair, which results in inconsistent surface thickness of the brake disc after polishing.

How to drive after brake disc repair?

The surface of the brake disc after repair is relatively smooth, so that the braking performance will be poor for a short period of time, but will gradually return to normal after a period of running-in. Wear marks on the surface of the brake disc are normal, so there is no need to deal with them as long as no other problems such as vibration occur. If you are concerned about the braking performance after polishing, it is recommended to go for replacement of the brake disc.

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