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GB/T 35385-2017: Non-destructive testing -- Practice for electromagnetic (eddy-current) sorting of ferrous metals
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Non-destructive testing -- Practice for electromagnetic (eddy-current) sorting of ferrous metals
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GB/T 35385-2017
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Basic data | Standard ID | GB/T 35385-2017 (GB/T35385-2017) | | Description (Translated English) | Non-destructive testing -- Practice for electromagnetic (eddy-current) sorting of ferrous metals | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J04 | | Classification of International Standard | 19.100 | | Word Count Estimation | 10,153 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2018-04-01 | | 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 | GB/T 35385-2017: Non-destructive testing -- Practice for electromagnetic (eddy-current) sorting of ferrous metals
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Non-destructive testing-Practice for electromagnetic (eddy-current) sorting of ferrous metals
ICS 19.100
J04
National Standards of People's Republic of China
Non-destructive testing
Ferromagnetic metal electromagnetic (eddy current) sorting method
(eddy-current) sortingofferrousmetals
2017-12-29 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard by the National Standardization Technical Committee nondestructive testing (SAC/TC56) and focal point.
This standard was drafted unit.National Nuclear Power Station Service Technology Co., Ltd., Edson (Xiamen) Electronics Co., Ltd., Chinese Academy of Sciences metal
Institute, Tsinghua University.
The main drafters of this standard. Zhang Junlin, Ye Chen, Lin Junming, Cai Guixi, Huang Songling.
Non-destructive testing
Ferromagnetic metal electromagnetic (eddy current) sorting method
1 Scope
This standard specifies the application of electromagnetic (eddy current) detection technology for ferromagnetic metal sorting method, that is, using absolute or comparative line
Circle to distinguish ferromagnetic metal in quality, shape, conductivity, permeability changes, as well as the distinction between hardness, alloy composition and ferromagnetic metal
Electromagnetic properties are closely related to the variety of properties.
This standard applies to ferromagnetic metal materials sorting.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 9445 non-destructive testing personnel qualification and certification
GB/T 12604.6 non-destructive testing term eddy current testing
3 Terms and definitions
GB/T 12604.6 defined terms and definitions apply to this document.
4 Method summary
4.1 General
The absolute (single) coil method and the comparative (double) coil method are two commonly used techniques in electromagnetic sorting. Mining is usually based on the selection decision
With absolute coil method or comparative coil method.
4.2 sorting method
4.2.1 Absolute (single) coil method
4.2.1.1 Through the coil method
Will be different contrast test blocks in turn into the detection coil, adjust the instrument to obtain the appropriate signal. Usually use 3 respectively on behalf of the file, mid-range
And the next file level comparison test block set. Then the workpiece to be seized into the test coil, the test equipment to determine whether the seizure of the workpiece
Within the required range.
4.2.1.2 placed coil method
Place the placement coil in turn on the contrast test block and adjust the instrument to obtain the appropriate signal. Usually use 3 respectively on behalf of the file, mid-range
And the next file level comparison test block set. Then the coil is placed on the workpiece under inspection, testing equipment to determine whether the workpiece under inspection
Within the required range.
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