GB/T 4341.2-2016 in English
VALIDMetallic materials―Shore hardness test―Part 2:Verification of hardness testers
- Issued on:2016-10-13
- Implemented on:2017-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 4341.2-2016金属材料 肖氏硬度试验 第2部分：硬度计的检验》由TC122（全国试验机标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Interpretation of GB/T4341.2-2016 Shore Hardness Tester Inspection Standard
The Shore hardness test is one of the important methods for measuring the hardness of metal materials, and the accuracy and reliability of the hardness tester are directly related to the validity of the test results. GB/T4341.2-2016 "Metallic Material Shore Hardness Test Part 2: Inspection of Hardness Tester" specifies the inspection method of Shore hardness tester in detail, including direct inspection and indirect inspection, and puts forward specific requirements for inspection cycle and report.
Standard Formulation Background and Technology Evolution Analysis
The Shore hardness test originated in the early 20th century and has been continuously improved with the development of metal material testing technology. Since the first release of the GB/T4341 series of standards in 1983, it has been revised many times and gradually formed a complete system. This part (GB/T4341.2) mainly focuses on the inspection method of hardness tester to ensure the accuracy and consistency of hardness measurement.
Comparative analysis of direct inspection and indirect inspection
| Inspection type | Scope of application | Inspection content | Technical requirements |
|---|---|---|---|
| Direct inspection | D-type Shore hardness tester | Inspection of key components such as punch, frame, and test bench | Punch rod diameter: 7.94±0.02mm; punch mass: 36.2±0.5g |
| Indirect inspection | D-type and C-type Shore hardness testers | Performance tests such as indication error and indication repeatability | Indication error: ±2.5HS; indication repeatability: ≤2.5HS |
Direct inspection method of hardness tester
Direct inspection steps:
- Before inspection, make sure the hardness tester is installed correctly and the test table is level.
- Use a level to check the flatness of the test table. The error should not exceed 0.1mm/m.
- Inspect the punch rod diameter and surface roughness to ensure that they meet the technical requirements.
- Measure the punch drop height, which should be (19±0.5) mm.
Indirect inspection method of hardness tester
Indirect inspection steps:
- Use standard Shore hardness blocks (such as 91HS~99HS, 56HS~64HS, etc.) for testing.
- Pre-punch three times to ensure that the hardness tester is in good condition.
- Measure the hardness values at five points and calculate the error between the average value and the calibration value.
Implementation suggestions
To ensure the accuracy and reliability of the Shore hardness tester, it is recommended that:
- Perform indirect inspection regularly (up to 12 months).
- Use calibration blocks and measuring instruments that meet the standards.
- Establish complete inspection records and report files.
- Operators should receive professional training to ensure the correct use of the hardness tester.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB 6270-1986 in English
Standard blocks of Brinell hardness
- -
GB/T 22067.3-2008 in English
Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 3: Calibration of reference blocks
2008-06-20 -
GB/T 32660.2-2016 in English
Metallic materials—Webster hardness test—Part 2: Verification and calibration of hardness testers
2016-06-14 -
GB/T 230.2-2022 in English
Metallic materials—Rockwell hardness test—Part 2: Verification and calibration of testing machines and indenters
2022-07-11 -
GB/T 38250-2019 in English
Metallic materials—Verification of the alignment of fatigue testing machines
2019-10-18 -
GB/T 16825.2-2018 in English
Verification of static uniaxial testing machines—Part 2:Tension creep testing machines—Verification of the applied force
2018-06-07 -
GB/T 25917.1-2019 in English
Uniaxial fatigue testing systems—Part 1:Calibration of dynamic force
2019-10-18 -
GB 7663-1987 in English
Standardized blocks of Vickers hardness
-
