TB/T 46-2020 in English
VALIDCenter plate and wear plate of railway vehicle
- Issued on:2020-05-29
- Implemented on:-
- File Format:PDF
- Delivery:Via email within 5 business days
$485.00
| Standard No: | TB/T 46-2020 |
| Document status: | VALID |
| Title in English: | Center plate and wear plate of railway vehicle |
| Title in Chinese: | 铁路车辆心盘及磨耗盘 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2020-05-29 |
| Superseding: |
TB/T 3011-2001 Railway generic trucks got the idea to disk fatigue test and evaluation methods
TB/T 3270-2011 Center Wear Plate of Railway Freight Wagons TB/T 46-2015 Railway Vehicle Center Plate |
| Professional Classification: | TB-Railway Transport |
| Related Keywords: | wear plate
center plate railway vehicle introduction standard overview railway vehicle bogie systems wear disc use |
| Related Topics: | tb/t46-1995
hj/t 46 TB/T2325.3-2020 Eccentric disc grinding european wear tb/t 46-2020 tb/t 3065-2020 |
本标准规定了铁路车辆用平面上、下心盘及心盘磨耗盘的型式与尺寸，技术要求，检验方法，检验规则，标志、包装、运输与储存。
本标准适用于铁路车辆用平面上、下心盘(以下简称心盘)及平面心盘磨耗盘(以下简称心盘磨耗盘)。
Introduction
Standard Overview
The TB/T 46-2020 standard is issued by China Railway Publishing House and is applicable to the design and manufacture of core components of railway vehicle bogie systems - center plate and wear plate. The standard replaces the old version TB/T 46-1993, mainly updating material performance indicators and wear detection methods.
Key Technical Requirements
| Parameters | TB/T 46-2020 | TB/T 46-1993 |
|---|---|---|
| Material Hardness | HRC 58-62 | HRC 55-60 |
| Wear Limit | ≤1.5mm/100,000km | ≤2.0mm/100,000km |
| Impact Toughness | ≥35J/cm² | Not Specified |
Analysis of Standard Evolution
The main improvements of the 2020 version of the standard are reflected in:
- New bench test method for wear disc
- Use finite element analysis to verify structural strength
- Increase anti-rust treatment process requirements
Implementation Recommendations
Vehicle manufacturers are advised to focus on:
- Narrowing of heat treatment process control window
- Use 3D profilometer for wear detection
- Establish digital archives of key dimensions
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