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GB/T 32660.3-2016: Metallic materials -- Webster hardness test -- Part 3: Calibration of reference blocks
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| GB/T 32660.3-2016 | English | 239 |
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Metallic materials -- Webster hardness test -- Part 3: Calibration of reference blocks
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GB/T 32660.3-2016
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Basic data | Standard ID | GB/T 32660.3-2016 (GB/T32660.3-2016) | | Description (Translated English) | Metallic materials -- Webster hardness test -- Part 3: Calibration of reference blocks | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N71 | | Classification of International Standard | 19.060; 77.040.10 | | Word Count Estimation | 12,194 | | Date of Issue | 2016-06-14 | | Date of Implementation | 2017-01-01 | | Quoted Standard | GB/T 230.3-2012; GB/T 3505-2009; GB/T 32660.1; GB/T 32660.2 | | Regulation (derived from) | National Standard Announcement No. 8 of 2016 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the technical requirements and calibration methods for standard Webster hardness blocks. This standard is applicable to the standard Wechsler hardness block (hereinafter referred to as standard block) used for Indirect Inspection of Webster Hardness Tester according to GB/T 32660.2. | GB/T 32660.3-2016: Metallic materials -- Webster hardness test -- Part 3: Calibration of reference blocks
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Metallic materials - Webster hardness test - Part 3. Calibration of reference blocks
ICS 19.060; 77.040.10
N71
National Standards of People's Republic of China
Metallic materials - Wechsler hardness test
Part 3. calibration of standard hardness blocks
Part 3. Calibrationofreferenceblocks
2016-06-14 release
2017-01-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Directory
Preface III
1 Scope 1
2 normative reference document 1
Manufacture of standard blocks
4 standard machine 2
5 Calibration method 2
6 indentation number 2
7 hardness uniformity 2
8 logo 2
9 validity 3
Appendix A (informative) Standard measurement of average hardness of standard blocks Uncertainty evaluation Example 4
Appendix B (informative) Webster's hardness (HW) and Rockwell hardness (HRE) conversion value 7
Foreword
GB/T 32660 "metal material Wechsler hardness test" is divided into the following three parts.
- Part 1. Test methods;
- Part 2. Inspection and calibration of hardness;
Part 3. Calibration of standard hardness blocks.
This part is part 3 of GB/T 32660.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. The issuer of this document does not assume responsibility for the identification of these patents.
This part is made by the China Machinery Industry Federation.
This part is headed by the National Standardization Technical Committee of Testing Machines (SAC/TC122).
This part of the drafting unit. Shanghai Institute of Metrology and Testing Technology, Changchun Institute of Mechanical Science and Technology Co., Ltd., Shenyang Star test equipment
Co., Ltd., China Aviation Industry Corporation Beijing Great Wall Metrology and Testing Technology Research Institute, Quanzhou Fengze Donghai Instrument Hardness Block Factory.
This part of the main drafters. Yu Weiliang, Wang Xuezhi, Zhang Fenglin, Shi Wei, Chen Jun pay.
Metallic materials - Wechsler hardness test
Part 3. calibration of standard hardness blocks
1 Scope
This part of GB/T 32660 specifies the technical requirements and calibration methods for standard Webster hardness blocks.
This part applies to the standard Wechsler hardness block (hereinafter referred to as standard block) for indirect testing of Webster hardness according to GB/T 32660.2.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 230.3-2012 Metallic materials - Rockwell hardness test - Part 3. Standard hardness blocks (A, B, C, D, E, F, G, H, K,
N, T scale) (ISO 6508-3..2005, MOD)
GB/T 3505-2009 Geometrical product specifications (GPS) - Surface texture - Terminology - Terms, definitions and surface structure parameters
(ISO 4287..1997, IDT)
Metallic materials - Webster 's hardness test - Part 1. Test methods GB/T
GB/T 32660.2 Metallic materials - Wechsler hardness test - Part 2. Inspection and calibration of durometers
3 standard block manufacturing
3.1 The standard block shall be specially manufactured, and the manufacturing process shall be such that the standard block obtains the necessary homogeneity, tissue stability and surface hardness
Uniformity.
3.2 The geometric dimensions and technical requirements of the standard block are shown in Table 1.
Table 1 Geometric dimensions and technical requirements for standard blocks
Geometric dimensions
mm
length Width Thickness
Test surface and bearing surface
Flatness
mm
Test surface and bearing surface
Parallelism
mm/mm
Surface roughness parameter Raa
μm
Test surface bearing surface
150 25 1.60 ± 0.05 ≤ 0.10 ≤ 0.10/50 ≤ 0.8 ≤ 0.8
a Measure the surface roughness of the sampling length l = 0.8mm (see GB/T 3505-2009 3.1.9).
3.3 Standard block hardness range and hardness uniformity in Table 2.
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