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GB/T 32660.2-2016: Metallic materials -- Webster hardness test -- Part 2: Verification and calibration of hardness testers
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| GB/T 32660.2-2016 | English | 239 |
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Metallic materials -- Webster hardness test -- Part 2: Verification and calibration of hardness testers
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GB/T 32660.2-2016
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Basic data | Standard ID | GB/T 32660.2-2016 (GB/T32660.2-2016) | | Description (Translated English) | Metallic materials -- Webster hardness test -- Part 2: Verification and calibration of hardness testers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N71 | | Classification of International Standard | 19.060; 77.040.10 | | Word Count Estimation | 12,146 | | Date of Issue | 2016-06-14 | | Date of Implementation | 2017-01-01 | | Quoted Standard | GB/T 4340.1; GB/T 32660.1; GB/T 32660.3 | | 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 testing and calibration methods of the Webster hardness tester (hereinafter referred to as hardness tester) for the Vickers hardness test face according to GB/T 32660.1. This standard applies to test the basic functions of the hardness of the direct test method and the hardness of the indirect test of the comprehensive test. The indirect test method can be used independently for periodic routine testing of durometer in use. | GB/T 32660.2-2016: Metallic materials -- Webster hardness test -- Part 2: Verification and calibration of hardness testers
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Metallic materials - Webster hardness test - Part 2. Verification and calibration of hardness testers
ICS 19.060; 77.040.10
N71
National Standards of People's Republic of China
Metallic materials - Wechsler hardness test
Part 2. inspection and calibration of durometers
Part 2. Verificationandcalibrationofhardnesstesters
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
3 hardness tester 1
General requirements
5 direct test 2
6 indirect test 3
7 inspection cycle 4
8 inspection report and/or calibration certificate 4
Appendix A (informative) Evaluation of Indirect Test Results of Hardness Tester Uncertainty Evaluation Example 6
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 2 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. Shenyang Star Star Experimental Instrument Co., Ltd., Changchun Institute of Mechanical Science and Technology Co., Ltd., Shanghai metering test technology
Research Institute, China Aviation Industry Corporation Beijing Great Wall Metrology and Testing Technology Research Institute, Heilongjiang Huaan Lean Metrology Technology Research Institute Limited
Company, Quanzhou Fengze Donghai instrument hardness block factory.
This part of the main drafters. Zhang Fenglin, Wang Xuezhi, Yu Weiliang, Shi Wei, Liu Yubo, Chen Jun pay.
Metallic materials - Wechsler hardness test
Part 2. inspection and calibration of durometers
1 Scope
This part of GB/T 32660 specifies the Wechsler hardness tester for the Wechsler hardness test according to GB/T 32660.1 (hereinafter referred to as hardness
Technical requirements and inspection and calibration methods.
This part applies to the direct test of the basic functions of the hardness tester and the indirect test of the hardness test. Indirect test method
Used independently for routine routine inspection of the durometer used.
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.
Metallic materials - Vickers hardness test - Part 1. Test methods GB/T
Metallic materials - Webster 's hardness test - Part 1. Test methods GB/T
GB/T 32660.3 Metallic materials - Webster hardness test - Part 3. Calibration of standard hardness blocks
3 hardness tester classification
According to the different geometric shapes of the pressure pin and the spring of the elastic modulus of the nominal value of the different combinations of hardness tester is divided into A type, B type and
Type C three types. The hardness of the hardness of the various types of needle shape and force spring elastic modulus nominal in Table 1.
Table 1 hardness model, pressure needle shape and force spring elastic coefficient nominal value
Hardness gauge type Needle shape
Force spring elasticity coefficient nominal value
N/mm
A Cone 75
B cylinder 145
C cylinder 75
4 General requirements
Before the test, the hardness tester should be checked to ensure that.
a) the application of test force, the pressure pin movement should be flexible, no friction and jamming phenomenon;
b) The pointer of the analogue indicating device shall be sensitive, without beating and jamming; the display of the digital indicating device shall be clear and complete,
Continued and stable;
c) the tip of the pressure pin should be located in the center of the small hole of the pressure cylinder. When the pressure needle falls, the tip of the pressure needle should be at the highest point of the arc of the anvil,
See the offset;
d) When holding the handle, so that the end of the pressure cylinder on the anvil, the pressure between the end of the needle and the anvil should be no visible light gap.
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