GB/T 13560-2017 PDF EnglishUS$185.00 · In stock · Download in 9 seconds
GB/T 13560-2017: Sintered neodymium iron boron permanent magnets Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 13560: Historical versions
Similar standardsGB/T 13560-2017: Sintered neodymium iron boron permanent magnets---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT13560-2017NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.150.99 H 65 Replacing GB/T 13560-2009 Sintered neodymium iron boron permanent magnets Issued on. OCTOBER 14, 2017 Implemented on. MAY 01, 2018 Issued by. General Administration of Quality Supervision Inspection and Quarantine of PRC; Standardization Administration of PRC. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 6 4 Material classification and grades... 7 5 Requirements... 8 6 Test methods... 11 7 Inspection rules... 11 8 Marking, packaging, transportation, storage and quality certificate... 12 Appendix A (Normative) Size and shape & position deviation of sintered neodymium iron boron permanent magnets... 14 Appendix B (Informative) Additional magnetic properties and main mechanical and physical properties of sintered neodymium iron boron permanent magnets ... 15 Appendix C (Informative) Chemical composition, manufacturing process and application of sintered neodymium iron boron permanent magnets... 17 Appendix D (Informative) Magnetic properties unit system, conversion table and grade magnetic properties comparison of sintered neodymium iron boron permanent magnets... 191 ScopeThis standard specifies the requirements, test methods, inspection rules and markings, packaging, transportation, storage and quality certificates of sintered neodymium iron boron permanent magnets. This standard applies to sintered neodymium iron boron permanent magnets produced by powder metallurgy.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard. GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1. Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 3217 Permanent magnet (magnetically hard) materials - Methods of measurement of magnetic properties GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 9637 Electrotechnical terminology - Magnetic materials and components GB/T 15676 Terms for rare earths GB/T 24270 Method of measurement of temperature coefficient of magnetic properties of permanent magnetic materials GB/T 29628 Guides for methods of measurement of the magnetic properties of permanent (magnetically hard) materials by pulsed field magnetometry GB/T 34491 Coatings for sintered neodymium iron boron permanent magnets3 Terms and definitionsThe terms and definitions as defined in GB/T 9637 and GB/T 15676 as well as the following terms and definitions apply to this document. 3.1 Principal magnetic properties It mainly includes residual magnetization of permanent magnets Br, magnetic polarization coercivity (inner coercivity) HcJ, magnetic induction coercivity HcB, maximum magnetic energy product (BH)max. 3.2 Additional magnetic properties It mainly includes the relative recoil permeability μrec of the permanent magnet, the remanence temperature coefficient α (Br), the magnetic polarization coercivity (inner coercivity) temperature coefficient α (HcJ), the Curie temperature Tc. 3.3 Irreversible flux losses In an open circuit state, the irreversible amount of relative change in the magnetic flux of the permanent magnet as a function of temperature increases. The calculation method of irreversible flux loss is as shown in formula (1). 3.4 Maximum operating temperature A permanent magnet cylinder sample with a thermal demagnetization state of L/D = 0.7 (diameter D, height L), after saturation magnetization, is heated from room temperature to a constant temperature for 2 h in an open circuit state, then cooled to room temperature, its open circuit irreversible flux loss ≤ 5% of the maximum holding temperature.4 Material classification and grades4.1 Material classification Sintered neodymium iron boron permanent magnet is divided into low coercivity N, medium coercivity M, high coercivity H, super-high coercivity SH, ultra-high coercivity UH, extremely high coercivity EH, top high coercivity TH in accordance with the intrinsic coercivity. 4.2 Material grade Each type of product is divided into several grades in accordance with the maximum magnetic energy product. Each grade of material can be processed into permanent magnet parts of various shapes and specifications such as discs, cylinders, rings and tiles. 4.3 Character grade representation method The grade of sintered neodymium iron boron permanent magnets is composed of material manufacturing characteristics, main name and magnetic characteristics. The first part S indicates the manufacturing characteristics of the material, which uses the Chinese phonetic alphabet S to indicate the sintered material produced by the powder metallurgy sintering process; the second part is the main name, which is composed of the element symbol Nd of neodymium, the element symbol Fe of iron and the element symbol B of boron, that is, NdFeB;5 Requirements5.1 The principal magnetic properties and squareness of the material at room temperature 20 °C shall comply with the requirements of Table 1.Table 1 does not include the parameters of other grades produced by the dysprosium diffusion new process. If there are special requirements by the purchaser, the supplier and the purchaser may negotiate separately. 5.2 The material of each grade can be divided into blank state and machining state. The dimensional deviation, shape and position deviation of the material (referred to as the shape and position deviation) can be found in Appendix A. Special requirements can be determined by both parties through negotiation. 5.3 The additional magnetic properties and main mechanical and physical properties of the materials are listed in Appendix B. They are for reference only for user design and use, they are not used as the basis for acceptance and rejection. 5.6 For the chemical composition, manufacturing process and application of the product, see Appendix C. 5.7 For the magnetic properties unit system, conversion table and grade Type Character grade Principal magnetic properties Squareness minimum value minimum value minimum value minimum value range value6 Test methods6.1 The principal magnetic property test methods for type N, M, H, SH and UH materials shall be carried out in accordance with the provisions of GB/T 3217. The principal magnetic property test methods for EH and TH materials shall be carried out in accordance with the provisions of GB/T 29628. 6.2 The test method of the remanence temperature coefficient and the intrinsic coercivity temperature coefficient of the material shall be carried out in accordance with the provisions of GB/T 24270. 6.3 Product size and shape & position deviation shall be tested by gages that meet the accuracy requirements and meet the national measurement standards, or otherwise tested by special gauges confirmed by both parties through negotiation. 6.4 Appearance quality of the product shall be visually inspected. 6.5 Coating test method shall be carried out in accordance with the provisions of GB/T 34491. 6.6 The numerical rounding off shall be carried out in accordance with the provisions of GB/T 8170.7 Inspection rules7.1 Inspection and acceptance 7.1.1 The product shall be inspected by the supplier’s quality inspection department, to ensure that the materials meet the requirements of this standard, meanwhile the quality certificate shall be filled. 7.1.2 The acquirer shall inspect the products received in accordance with the provisions of this standard. If the inspection result is inconsistent with the provisions of this standard, it shall be submitted to the supplier within one month from the date of receipt of the product, to be settled through negotiation between the supplier and the purchaser. If arbitration is required, it shall be jointly sampled at the purchaser’s premise and tested by the organization which is jointly recognized by both parties. 7.2 Batching Each batch of product shall consist of the materials of the same specification and size made by same grades through same production process. 7.3 Inspection items Each batch of product shall be inspected for principal magnetic properties, dimensional deviations, shape & position deviations, appearance quality or items specified in the contract. 7.4 Sampling The sampling quantity for inspection shall be carried out in accordance with the provisions of GB/T 2828.1-2012.The principal magnetic property qualification level of the product is 1.5 grades of special inspection level S2, the inspection qualification level of the other items is grade 1.5 of inspection level II. 7.5 Determination of inspection results8 Marking, packaging, transportation, storage andquality certificate 8.1 Marking, packaging 8.2 Transportation, storage The product shall be handled with care during transportation and stored in a well-ventilated, dry, non-corrosive atmosphere. 8.3 Quality certificate Each batch of products shall be accompanied by a quality certificate, indicating. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 13560-2017 be delivered?Answer: The full copy PDF of English version of GB/T 13560-2017 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 13560-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 13560-2017_English will be deemed to be sold to your employer/organization who actually paid 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+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 13560-2017 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.Question 5: Should I purchase the latest version GB/T 13560-2017?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13560-2017 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.How to buy and download a true PDF of English version of GB/T 13560-2017?A step-by-step guide to download PDF of GB/T 13560-2017_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB/T 13560-2017". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
