Everyone sees a lot of cars on weekdays. For a car, the quality of the braking performance seriously affects the quality of the car; and the decisive role for the braking performance is the brake pad; the brake pad is the most basic and The most important component, the quality of the brake pads plays a decisive role in the braking effect, which is directly related to the driving safety. Therefore, Xiaoyi will talk about the relevant details of the import of brake pads today.
In order to further strengthen the quality control of brake pads, since June 1, 2020, automobile brake pads have been officially included in the "Catalogue of Compulsory Product Certification". From June 1, 2021, the brake lining products for automobiles that have not obtained the compulsory product certification certificate and the compulsory certification mark shall not leave the factory, sell, import or use in other business activities.
Classification of brake pads
According to standards such as "Automotive Brake Linings" (GB5763-2018) and "Road Vehicles, Vehicles and Trailers - Terms and Definitions of Brake Names", car brake pads can be divided into two categories according to the type of brake:
1. Disc brake pads: a component of the disc brake system, which is fixed with the tires of the vehicle and rotates at the same speed, and cooperates with the calipers to brake the vehicle.
2. Drum lining: It forms a drum brake together with the relevant connecting rods, springs, pins and brake drums such as the brake base plate and the brake cylinder. Drum brakes are only commonly used on the rear wheels.
In terms of material, it can be divided into:
—Resin-based brake material
— Powder metallurgy brake material
- Carbon/carbon composite brake material
—Ceramic-based brake material
The quality and safety of brake pads cannot be ignored
1. Beijing Customs seized imported unqualified brake pads
According to information released on the official website of Beijing Customs, in 2021, Tongzhou Customs and Shunyi Customs under Beijing Customs seized two batches of unqualified imported disc brake pads, which will be returned or destroyed as required.
According to laboratory testing, the shear strength of some unqualified brake pads is only 0.9-1.7MPa (megapascal), which is lower than the national standard of 2.5MPa. The friction coefficient of some brake pads is only 0.294, which is not within the range of the national standard of 0.36 (±15%). The friction coefficient is too low, which may lead to brake failure and speed loss, which may easily cause driving accidents. .
2. CCTV exposed that nearly half of the imported brake pads were unqualified in the supervision and spot check
In 2017, CCTV's "Weekly Quality Report" reported that the former General Administration of Quality Supervision, Inspection and Quarantine conducted a random inspection of the quality of domestic imported automobile brake pads, and the overall unqualified rate reached 48.4%! Land Rover, Toyota, Mercedes-Benz, Audi, Volkswagen and other brands are on the list. Among them, 71 batches of imported brake pads were randomly checked from the port, and 8 batches were unqualified; 388 batches were randomly checked from the circulation field, and 211 batches were unqualified; 8 batches were randomly checked from the e-commerce platform, and 7 batches were unqualified.
3. Market supervision spot check brake pads are unqualified
The market supervision and management departments of Shanghai, Jilin Province, Zhejiang Province, Shandong Province, Guizhou Province and other market supervision and management departments released the 2020 report on the quality supervision and sampling of auto parts and related products. %, 5.26%, 5%, 6.5%, the main reason for failure is the failure of friction coefficient.
According to the "Announcement of the State Administration for Market Regulation on the Implementation Requirements for the Conversion of Automobile Brake Liners from Production Licenses to Compulsory Product Certification Management" (No. 19, 2020), from June 1, 2020, automobile brake linings officially Included in the Catalogue of Compulsory Product Certification.
According to the "Import and Export Commodity Inspection Law of the People's Republic of China" and its implementing regulations, the customs implements the verification management of the import and export commodities that must be certified under the licensing system and state regulations, examines the documents, and checks whether the certificates and goods are consistent.
