1 Scope
This standard specifies the types and dimensions, technical requirements, inspection, inspection rules as well as marking, packaging, transportation and storage of center plate on upper/lower plane (hereinafter referred to as center plate) for railway rolling stock.
This standard is applicable to the manufacture and inspection of forged steel and cast steel center plate for railway rolling stock.
2 Normative References
The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 223.5 Steel and Iron-Determination of Acid-Soluble Silicon and Total Silicon Content-Reduced Molybdosilicate Spectrophotometric Method (GB/T 223.5-2008, ISO 4829-1: 1986, MOD; ISO 4829-2: 1988, MOD)
GB/T 223.11 Iron Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method (GB/T 223.11-2008, ISO 4937-1986, MOD)
GB/T 223.23 Iron, Steel and Alloy - Determination of Nickel Content - The Dimethylglyoxime Spectrophotometric Method
GB/T 223.26 Iron Steel and Alloy-Determination of Molybdenum Content - The Thiocyanate Spectrophotometric Method
GB/T 223.53 Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrophotometric Method for The Determination of Copper Content (GB/T 223.53-1987, eqv ISO/DIS 4943: 1986)
GB/T 223.59 Iron Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method
GB/T 223.63 Methods for Chemical Analysis of Iron, Steel and Alloy; The Sodium (Potassium) Periodate Photometric Method for the Determination of Manganese Content
GB/T 223.68 Methods for Chemical Analysis of Iron, Steel and Alloy - The Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the Determination of Sulfur Content
GB/T 223.69 Iron Steel and Alloy - Determination of Carbon Contents - Gas-Volumetric Method after Combustion in the Pipe Furnace
GB/T 228.1 Metallic Materials - Tensile Testing - Part 1: Method of Test at Room Temperature (GB/T 228.1-2010, ISO 6892-1: 2009, MOD)
GB/T 229 Metallic Materials - Charpy Pendulum Impact Test Method (GB/T 229-2007, ISO 148-1: 2006, MOD)
GB/T 231.1 Metallic Materials - Brinell Hardness Test - Part 1: Test Method (GB/T 231.1-2009, ISO 6506-1: 2005, MOD)
GB/T 699 Quality Carbon Structural Steels
GB/T 1184 Geometrical Tolerancing - Geometrical Tolerance for Features without Individual Tolerance Indications (GB/T 1184-1996, eqv ISO 2768-2: 1989)
GB/T 1804 General Tolerances－Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications (GB/T 1804-2000, eqv ISO 2768-1: 1989)
GB/T 4336 Standard Test Method for Spark Discharge Atomic Emission Spectrometric Analysis of Carbon and Low-Alloy steel (Routine Method)
GB/T 6414 Castings - System of Dimensional Tolerances and Machining Allowances (GB/T 6414-1999, eqv ISO 8062: 1994)
GB/T 11352 Carbon Steel Castings for General Engineering Purpose (GB/T 11352-2009, ISO 3755: 1991, ISO 4990: 2003, MOD)
GB/T 12361 General Specification of Steel Die Forgings
GB/T 12362 Tolerances and Machining - Allowances of Steel Die Forging
TB/T 2942 General Specifications of Steel Castings for Rolling Stock
TB/T 2944 Carbon Steel Forgings for Railway
TB/T 3011 Fatigue Test and Assessment Methods for Upper Center Plate of Railway General Freight Car
TB/T 3198.1 Dedicated Measuring Tools for the Center Plate and Wear Plate on Freight Car - Part 1: Measuring Tools for the Manufacture of Center Plate and Wear Plate
3 Types and Dimensions
3.1 The types and dimensions of center plate for passenger car shall meet the requirements of the product drawings.
3.2 See Figure 1 for the types and dimensions of upper center plate for freight car, see Figure 2 for the types and dimensions of lower center plate for freight car, and other or special requirements shall be specified in the product drawings.
Foreword II
1 Scope
2 Normative References
3 Types and Dimensions
4 Technical Requirements
4.1 Materials and Performance Requirements
4.2 Manufacturing Requirements
4.3 Painting Requirements
5 Inspection
6 Inspection Rules
6.1 Type Inspection
6.2 End-of-manufacturing Inspection
7 Marking, Packaging, Transportation and Storage
7.1 Marking
7.2 Packaging
7.3 Transportation and Storage
