机车车辆用制动盘（TB\T2980-2014 英文版）

　　This standard is drafted in accordance with rules in GB/T 1.1-2009.This standard replaces TB/T 2980-2000 Technical Specification of Brake Disc for PassengerCar. This edition includes the following main technical changes with regards to TB/T 2980-2000.——Terms and definitions of disc body are amended （see 3.3， 3.1 in edition 2000）；——Requirements of brake disc body material， mechanical property and metallographicstructure are amended （see Table 1， Table 1 and 2 in edition 2000） ；——Requirements of brake disc hub material and mechanical property are added （see Table 2） ；——Requirements of brake disc interface dimension are amended （see Table 4， 4. 2. 2 in edition 2000） ；——Requirements of applying lubricant during assembly are deleted （see 4. 4. 3 in edition 2000）——Requirements of controlling the defect on the surface of brake disc body are amended （see 4.6.3， 4.3.3 in edition 2000）Requirements of controlling the defect on the surface of brake disc hub are amended （see 4.6.4， 4.3.4 in edition 2000） ；——Requirements of surface roughness are added （see 4. 10） ；~Requirements of real mass of brake disc are added （see 4.11） ；——Requirements of 1 ： 1 dynamometer test and fatigue test of braking are added （see 4.12） ；~Test rules of impact absorbing energy are amended （see 6.2.6， 5.5 in edition 2000）——Requirements of quality assurance are deleted （see Chapter 6 in edition 2000） ；——Requirements of transportation and storage are added （see 7.3）——Requirements of qualification certificate are added （see Chapter 8） ；——Procedures of 1 \

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