? Let theПроизводители автомобильных тормозов
The truck travels all year round, and the wear and tear of many accessories on the car is inevitable, and the brake pads are one of the wearing parts, which need to be inspected and replaced from time to time. In the replacement process, some black-hearted businesses, because they want to seek violence, will place some fake and shoddy products on, not only the quality is not guaranteed, but also the serious situation will cause great danger to the driving safety of the владелец. How to tell the truth?
1. Посмотрите на упаковку и сертификацию продукта. Produced by regular manufacturers, the packaging printing is more clear, there is a license number, the specified friction coefficient, the implementation of standards, etc., the packaging box has a certificate, production batch number, production date, etc., so it is necessary to check whether the product packaging is intact, the anti-counterfeiting mark and the packaging mark are consistent with the mark on the product model is consistent with the content of the certificate. If the packaging is simple, the information is incomplete or no, or even "three no" products, you should consider it carefully. In addition, whether it is disc or drum, the manufacturer has strictly specified its thickness, and the owner can measure it by himself.
3. Соблюдайте внешний вид. High quality in the proportion of friction materials in particular, and the appearance looks full of color, there will be a smooth touch, will not easily off the paint, good workmanship. Informal in order to reduce costs, work at will, a large number of cheap metal debris will be used in the production, the color may be red, the surface or has occurred oxidation phenomenon, the red substance is the old saying rust.
4. The friction coefficient of the friction coefficient is too high or too low will affect the brake performance, especially in the high-speed emergency braking, the friction coefficient is too low will appear insensitive, the friction coefficient is too high will appear tire lock явление. According to the SAE standard, the friction plate will choose the FF grade rating coefficient, that is, the friction rating coefficient is 0.35 ~ 0.45. In addition, according to the national standard, the appropriate working temperature of the friction sheet is 100 ~ 350 ° C, and the coefficient of friction will drop sharply when the inferior temperature reaches 250 ° C, and there is a failure.
ВышеупомянутоеПроизводители автомобильных тормозов
Время публикации: февраль-07-2025