Entering April, the rainy days began to become dense. The road surface is slippery and the vehicle is more likely to slip. At this time, it is often necessary to rely on the brake system for control to ensure that if the vehicle is abnormal, decelerate or stop in time.
In the brake system, the most important and most important component is the brake pad.
However, on April 8, the reporter learned that the Guangdong Entry-Exit Inspection and Quarantine Bureau conducted a random inspection of the import and export commodities in Guangdong Province in 2015, and conducted a total of 98 batches of imported brake pads in the relevant ports, domestic markets and imported products. The failure rate is as high as 91%.
What does this high rate of failure mean?
Multiple brands of brake pads fail <br style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px"> Brake pads are closely related to road safety According to the relevant requirements of the AQSIQ, the brake pads are listed in the supervision and spot check of key commodities for import and export outside the 2015 catalogue.
In this sampling, the high-temperature friction coefficients of 16 batches of brake pads, such as Japanese, Korean, and German brands, were unqualified. Among them, the problem of an imported brand disc brake pad is more prominent. In the total number of samples of 8 batches, the 350°C high temperature friction coefficient is all unqualified, and the brand has no specified friction coefficient.
In the national standard GB 5763-2008, fluctuations in the range of 0.08 to 0.12 above and below the specified friction coefficient are considered qualified. In this sampling, the deviation of the specified friction coefficient of 25 batches exceeds this range. “The brake pads are the most important safety parts in the brake system of the car. The most important safety performance indicator of the brake pads is the friction coefficient.†Zhou Qi, a senior engineer of the Guangdong Entry-Exit Inspection and Quarantine Bureau, said that the friction coefficient is too high, which will cause the brakes to be too strong. The ride comfort is poor; the friction coefficient is too low, the braking distance is long, and it is prone to accidents; the high temperature friction coefficient drops too fast, which will cause the brake failure at high temperature, posing a serious threat to the safety of vehicles and pedestrians.
It is understood that the relevant national standards stipulate that for each specific brake pad, a clear specified friction coefficient value must be given and clearly marked on each unit package or certificate for the user to choose correctly. However, in the 98 batches of imported brake pads sampled by the Guangdong Entry-Exit Inspection and Quarantine Bureau, there were 65 batches of unqualified packaging and marking, accounting for 66% of the total number of samples. The main problem is that there is no Chinese mark or no GB. The 5763-2008 regulations identify the specified coefficient of friction.
Zhou Qi explained that, in layman's terms, each brake system needs to have a specific friction plate to match. How to choose the appropriate brake pad is based on the specified friction coefficient. Without this indicator, the consumer would not know if the friction lining matches the brakes of the car.
Inferior brake pads cause multiple safety incidents <br style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px"> Unqualified brake pads often give driving The crew brings great security risks and may even lead to "car crash".
According to the statistics of the Traffic Management Bureau of the Ministry of Public Security, 30% of the annual traffic accidents in the country in recent years are caused by brake failure, and inferior brake pads are the main cause of brake failure.
Mr. Li, who works in Guangzhou, also almost suffered from a dangerous accident in the brake pads. Mr. Li told reporters that he was driving a Japanese car. Once I traveled with my family and encountered a slippery road, I couldn’t stop the car. Fortunately, I switched to the lawn in time and did not cause an accident. Afterwards, Mr. Li drove the car to the local 4S shop for inspection. The maintenance personnel told him that the brake pads of the car were defective and not wearable, so there was a phenomenon that the car could not be stopped.
"I thought that I bought a brand car, the safety system will do better." Mr. Li said that in the future, the purchase of vehicles will pay special attention to the performance of the brake pads.
For the results of this brake pad, Ms. Chen, the owner of the car, also said that she always believed in imported products and did not expect the rate of failure of imported brake pads to be so high. "Go home to the repair shop immediately, it is too dangerous to stop the car."
Ordered production companies to carry out rectification <br style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px"> Guangdong Inspection and Quarantine Bureau said that for imported unqualified goods The company is in a timely manner to discuss the business, and will order the merchants and production operators to carry out rectification, investigate and deal with the goods with quality problems, and strengthen the follow-up inspection of common problems of similar products.
In addition, a brand of brake pads that were found to be 100% unqualified were used on several models. The reporter learned from the Guangdong Entry-Exit Inspection and Quarantine Bureau that they have already had an interview with a brand car company. The bureau also said that it will also talk about the rest of the problem enterprises in the future, and ask them to regulate the quality and logo of the products.
Experts believe that such a high rate of non-conformity, in addition to ordering production companies to carry out rectification, but also need to strengthen supervision.
An expert from the Guangzhou Automobile Service Industry Association said that China has implemented a production license management system for brake pads and implemented the mandatory standard GB 5763-2008, but it has not been included in the 3C voluntary certification, and has not been included in the 3C mandatory certification. Imported brake pads sold in China have not been officially certified, nor have they been approved by automobile OEMs, and have fallen into a blind spot of supervision. Therefore, experts said that it is necessary for the relevant government departments to include brake pads in 3C compulsory certification, strengthen supervision, and eliminate these hidden dangers.
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