HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (11 Oct 2025)

GB/T 3658-2022 English PDF

US$529.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3658-2022: Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens
Status: Valid

GB/T 3658: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 3658-2022English529 Add to Cart 5 days [Need to translate] Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens Valid GB/T 3658-2022
GB/T 3658-2008English919 Add to Cart 4 days [Need to translate] Methods of measurement of a.c. magnetic properties of magnetically soft materials Obsolete GB/T 3658-2008
GB/T 3658-1990English359 Add to Cart 3 days [Need to translate] Soft magnetic alloys--Measuring method for alternative magnetic properties Obsolete GB/T 3658-1990

PDF similar to GB/T 3658-2022


Standard similar to GB/T 3658-2022

GB/T 3249   GB/T 2523   GB/T 3655   GB/T 3656   

Basic data

Standard ID GB/T 3658-2022 (GB/T3658-2022)
Description (Translated English) Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H21
Classification of International Standard 77.040.99
Word Count Estimation 25,254
Date of Issue 2022-10-12
Date of Implementation 2022-10-12
Older Standard (superseded by this standard) GB/T 3658-2008
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 3658-2022: Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens



---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens ICS 77.040.99 CCSH21 National Standards of People's Republic of China Replacing GB/T 3658-2008 Soft magnetic metal materials and powder metallurgy materials 20Hz~100kHz frequency range of magnetic properties Measuring method of ring sample (IEC 60404-6.2018, Magneticmaterials- 2022-10-12 release 2022-10-12 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General rules of measurement 1 4.1 Principle of ring test method 1 4.2 Sample 1 4.3 Winding 2 5 Temperature measurement 2 6 Determination of relative amplitude permeability and AC magnetization curve 3 6.1 Overview 3 6.2 Devices and Connections 3 6.3 Waveforms of secondary voltage and magnetizing current 4 6.4 Measurement of magnetic properties 4 6.4.1 Determination of peak magnetic field intensity 4 6.4.2 Determination of the peak value of magnetic flux density 5 6.4.3 Determination of effective amplitude magnetic permeability and relative amplitude magnetic permeability 5 6.4.4 Determination of magnetization curve 6 7 Measuring the specific total loss with the power meter method 6 7.1 Measuring principle 6 7.2 Voltage measurement 7 7.2.1 Average Voltmeter 7 7.2.2 RMS voltmeter 7 7.3 Power measurement 7 7.4 Measurement procedure for specific total loss 7 7.5 Determination of specific total loss 8 8 Reproducibility8 9 Test report 8 Appendix A (informative) Technical differences between this document and IEC 60404-6.2018 and their reasons 10 Appendix B (Informative) Calibration Scheme for Magnetic Measuring Equipment 11 Appendix C (Informative) Requirements for Windings and Instruments Used to Minimize Additional Losses 14 Appendix D (Informative) Digital Sampling Techniques for Magnetic Properties Measurement and Air Flux Compensation 15 Appendix E (Informative) Digital Control Method of Sine Waveform 19 Reference 20

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. This document replaces GB/T 3658-2008 "Measurement method for ring specimens of AC magnetic properties of soft magnetic materials", and GB/T 3658-2008 In comparison, except for structural adjustments and editorial changes, the main technical changes are as follows. a) Electrical steel is added to the scope of materials (see Chapter 1); b) The frequency range is changed from 20Hz~20kHz to 20Hz~100kHz (see Chapter 1, 6.1, Chapter 1, 5.1 of the.2008 edition); c) Modified the technical requirements for various voltmeters and power meters (see 6.2, 7.2, 7.3, 5.2.1, 6.1.1, 6.1.2,.2008 version 6.1.3); d) The use of digital impedance bridges to measure magnetic properties and the use of digital methods to measure magnetic properties have been deleted (see Chapter 7 and Chapter 8 of the.2008 edition). This document is modified to adopt IEC 60404-6.2018 "Magnetic Materials Part 6.Soft Magnetic Metal Materials and Powder Metallurgy Materials 20Hz~ Method for measuring the magnetic properties of ring specimens in the frequency range of 100kHz". Compared with IEC 60404-6.2018, this document has made the following structural adjustments. --- Added Appendix A; --- Added Appendix B; ---Appendix C corresponds to Appendix A in IEC 60404-6.2018; ---Appendix D corresponds to Appendix B in IEC 60404-6.2018; ---Appendix E corresponds to Appendix C in IEC 60404-6.2018. Compared with IEC 60404-6.2018, this document has more technical differences, and vertical Straight line (|) is marked. See Appendix A for a list of these technical differences and their causes. The following editorial changes were made to this document. --- In order to coordinate with existing standards, change the name of the standard to "20Hz~100kHz frequency range for soft magnetic metal materials and powder metallurgy materials Measurement method of ring sample with surrounding magnetic properties"; --- Added note (see 6.1, 7.1, Chapter 8, D.2); --- Deleted Note 1 of 7.2.1 in IEC 60404-6.2018; --- Increased Appendix B (informative) magnetic measuring equipment calibration scheme. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Iron and Steel Industry Association. This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183). This document was drafted by. Baoshan Iron and Steel Co., Ltd., Changsha Tianheng Measurement and Control Technology Co., Ltd., Hengyang Jinzeli Special Alloy Co., Ltd. Co., Ltd., Metallurgical Industry Information Standard Research Institute, Hunan Metrology and Testing Research Institute, Chongqing Wangbian Electric (Group) Co., Ltd. The main drafters of this document. Tang Ling, Zhou Xinhua, Wang Yujie, Shen Jie, Xu Guanghui, Zou Xueliang, Zou Hong, Xu Yu, Liu Baoshi, Zhou Xing, He Chao, Tian Hao. This document was first released in 1983 and revised for the first time in.1990.When it was revised for the second time in.2008, GB/T 5026-1985 "Soft magnetic Alloy Amplitude Magnetic Permeability Measurement Method" was incorporated, this is the third revision. Soft magnetic metal materials and powder metallurgy materials 20Hz~100kHz frequency range of magnetic properties Measuring method of ring sample

1 Scope

This document specifies the AC magnetic performance test method for soft magnetic materials other than ferrite in the frequency range of 20Hz~100kHz. Book The materials involved in the document include electrical steel, castings and soft magnetic composite materials, special alloys listed in GB/T 21220 and GB/T 24296 Pressed, sintered and metal injection molded components listed in The purpose of this document is to clarify the general principles and technical details for testing the magnetic properties of soft magnetic materials with ring test pieces. For powdered materials, through appropriate The extrusion method is used to make ring samples. Refer to GB/T 13012 for the measurement method of the ring-shaped sample of the DC magnetic properties of soft magnetic materials; for the determination of the magnetic properties of soft magnetic components, see GB/T 28869.1. It is usually tested at an ambient temperature of (23±5)°C, and the ring sample is demagnetized before the test. After negotiation between the supplier and the buyer, the test can also be carried out in other within the temperature range.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 2900.60 Electrotechnical Terms Electromagnetics [GB/T 2900.60-2002, eqvIEC 60050(121).1998] GB/T 3655 Method for Measuring Magnetic Properties of Electrical Steel Strip (Sheet) Using Epstein Square (GB/T 3655-2022, IEC 60404-2. 1996, MOD) GB/T 9637 Electrotechnical terms Magnetic materials and components [GB/T 9637-2001, eqvIEC 60050(221).1990]

3 Terms and Definitions

The terms and definitions defined in GB/T 2900.60 and GB/T 9637 apply to this document.

4 General principles of measurement

4.1 Principle of ring test method The closed magnetic circuit constructed by the ring sample and the two windings around it form an unloaded transformer for measurement. Note. See Appendix B for the calibration scheme of magnetic measuring equipment. 4.2 Specimen The sample should be a circular sample with a rectangular cross-section, which can be obtained by any of the following methods. a) A thin strip or wire wound into a clock spring-shaped core;

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 3658-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 3658-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 3658-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 3658-2022_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 3658-2022?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3658-2022 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.