Standard No.:	TB/T 2980-2023
English Name:	Foundation brake rigging for rolling stockDisc brakes - Brake disc
Chinese Name:	机车车辆基础制动装置 盘形制动 制动盘
Professional Classification:	TB    Professional Standard - Railway Transport
Source Content Issued by:	NRA
Issued on:	2023-12-20
Implemented on:	2024-7-1
Status:	valid
Superseding:	TB/T 2980-2014 Brake disc rolling stock
Target Language:	English
File Format:	PDF
Word Count:	20500 words
Translation Price(USD):	615.0
Delivery:	via email in 1 business day

FTB/T 2980-2023 Foundation brake rigging for rolling stockDisc brakes - Brake disc 1 Scope This document specifies the terms and definitions, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality certificate for brake discs used for rolling stock (hereinafter referred to as "brake discs"). This document is applicable to the following brake discs: ——Wheel mounted brake discs used for rolling stock with a maximum operating speed of 200km/h and below; ——Axle mounted brake discs used for passenger coaches with a maximum operating speed of 160km/h and below; ——Axle mounted and wheel mounted brake discs used for EMUs with a maximum operating speed ranging from 200km/h to 350km/h. This document may serve as a reference for brake discs used for other rail transit rolling stock. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 223.23 Iron, steel and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature GB/T 229 Metallic materials - Charpy pendulum impact test method GB/T 231.1 Metallic materials - Brinell hardness test - Part 1: Test method GB/T 1184-1996 Geometrical tolerancing - Geometrical tolerance for features without individual tolerance indications GB/T 1804-2000 General tolerances - Tolerances for linear and angular dimensions without individual tolerance indications GB/T 6414-2017 Castings - Dimensional tolerances and geometrical tolerances and machining allowances GB/T 7216 Metallographic test for grey cast iron GB/T 7233.1 Steel castings - Ultrasonic testing - Part 1: Steel castings for general purposes GB/T 9441 Metallographic test method for spheroidal graphite cast iron GB/T 9444-2019 Steel and iron castings - Magnetic particle inspection GB/T 12362-2016 Steel die forgings - Tolerance and machining allowance GB/T 13298 Inspection methods of microstructure for metals GB/T 24234 Cast iron - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (Routine method) GB/T 26656 Metallographic test for compacted (vermicular) graphite cast irons TB/T 3575.1-2022 Non-destructive testing of steel forgings for rolling stock - Part 1: Magnetic particle testing TB/T 3575.4 Non-destructive testing of steel forgings for rolling stock - Part 4: Ultrasonic testing 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 axle mounted brake disc component installed on the axle and forming a brake friction pair with the brake pads [Source: TB/T 3453.3-2016, 3.6.5, modified] 3.2 wheel mounted brake disc component installed on both sides of the wheel spokes and forming a brake friction pair with the brake pads [Source: TB/T 3453.3-2016, 3.6.6, modified] 3.3 brake ring part of a brake disc that cooperates with the brake pads to perform friction braking 3.4 disc hub part of an axle mounted brake disc that connects the brake ring and the axle 3.5 friction face surface of the brake ring that comes into frictional contact with the brake pads 3.6 ventilated brake disc brake disc with a ventilation and heat dissipation structure between the two friction faces of the brake ring 3.7 non-ventilated brake disc brake disc without a ventilation and heat dissipation structure between the two friction faces of the brake ring 3.8 wear limit the maximum allowable wear dimension of the brake ring of a brake disc 4 Technical requirements

Contents Foreword II 1 Scope 2 Normative references 3 Terms and definitions 4 Technical requirements 5 Test methods 6 Inspection rules 7 Marking, packaging, transportation and storage 8 Quality certificate Annex A (Normative) 1:1 braking performance test and fatigue test procedures for wheel mounted brake discs used for rolling stock Annex B (Normative) 1:1 braking performance test and fatigue test procedures for axle mounted brake discs used for passenger coaches Annex C (Normative) 1:1 braking performance test and fatigue test procedures for brake discs used for EMUs Annex D (Normative) Requirements for braking pressure rise time in 1:1 braking performance test and fatigue test Annex E (Normative) Requirements for test speed and ventilation conditions for 1:1 braking performance test bench Annex F (Normative) Records of 1:1 braking performance test and fatigue test Annex G (Normative) Temperature measurement methods for 1:1 braking performance test and fatigue test Bibliography ............................................................................................................