GB/T 19345.1-2017 PDF EnglishUS$145.00 · In stock · Download in 9 seconds
GB/T 19345.1-2017: Amorphous and nanocrystalline alloys - Part 1: Fe-based amorphous soft magnetic alloy strips 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 19345.1: Historical versions
Similar standardsGB/T 19345.1-2017: Amorphous and nanocrystalline alloys - Part 1: Fe-based amorphous soft magnetic alloy strips---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/GBT19345.1-2017 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.040.99 H 58 GB/T 19345.1-2017 Partially replacing GB/T 19345-2003 Amorphous and nanocrystalline alloys – Part 1.Fe-based amorphous soft magnetic alloy strips Issued on. OCTOBER 14, 2017 Implemented on. JULY 1, 2018 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 5 4 Classification and designation display method... 6 5 General requirements... 7 6 Technical requirements... 8 7 Inspection and measurement... 12 8 Packaging, storage, marks and quality certificate... 15 9 Order content... 16 Annex A (informative) Part of the basic physical parameters of Fe-based amorphous soft magnetic alloy strips... 17 Annex B (normative) Measurement method for AC magnetic properties of amorphous alloy monolithic sample... 18 Annex C (normative) Measurement method of lamination factor of amorphous alloy strips... 28 Annex D (normative) Measurement method for toughness of amorphous alloy strips... 321 ScopeThis Part specifies the terms and definitions, classification and display method of designation, general requirements, technical requirements, inspection and measurement, packaging, storage, marks and quality certificate of Fe-based amorphous soft magnetic alloy strips manufactured with fast quenching process. This Part is applicable to Fe-based amorphous soft magnetic alloy strips used for iron core of distribution transformer, medium frequency transformer, reactor, filter inductor (hereinafter referred to as the strips).2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2900.1, Electrotechnical terminology Fundamental terms GB/T 9637, Electrotechnical terminology - Magnetic materials and components3 Terms and definitionsFor the purposes of this document, the terms and definitions specified in GB/T 2900.1, GB/T 9637 and GB/T 15019 as well as the followings apply. 3.1 specific total loss the total power absorbed by the homogeneous magnetized material per unit mass, in watts per kilogram (W/kg) 3.2 specific apparent power the apparent power the total apparent power delivered to a unit mass of uniform magnetized material, in volt-amperes per kilogram (VA/kg) 3.3 lamination factor the ratio of the cross-sectional area of the magnetic material to the total cross- sectional area of the stack4 Classification and designation display methodThe designation of the strips uses chemical element symbols and English letters combined with the Arabic numerals by a connector. The general form of the strip designation is.5 General requirements5.1 Production process The production process and chemical composition of the strips are decided by the supplier. 5.2 Delivery form 5.2.5 The strips shall be wound tightly, no local relaxation, no wrinkles, no collapse, no falling off during handling due to self-weight, no lateral offset during unwinding. 5.2.6 The strips may be spliced by removing defects. The front and back parts of splicing shall be of same designation, same nominal width. The part of splicing shall be marked. 5.2.7 The particular requirements for strip delivery form shall be determined by the supplier and the purchaser. 5.3 Delivery conditions The strips are normally delivered in non-sheared semi-processed state (prepared state) with the absence of a top coat. The particular requirements for strip delivery form shall be determined by the supplier and the purchaser. 5.4 Surface quality 5.4.1 The surface of the strips shall not have rusts, greases, fingerprints, foreign materials or the continuous visible oxidation. 5.5 Shear adaptability When using suitable equipment for cutting, any part of the strips shall be able to be cut into the usual shape.6 Technical requirements6.1 Physical properties 6.1.1 The strips delivered in the semi-processed state (prepared state) shall be heat-treated properly to obtain the desired magnetic properties. 6.1.2 The magnetic properties of the strips shall comply with the provisions of Table 1, Table 2, Table 3, respectively. The heat treatment process is provided by the supplier and indicated in the quality certificate. Any particular requirements for magnetic properties may be determined by the supplier and the purchaser. 6.1.3 See Table A.1 for other basic physical parameters of the strips. 6.2 Geometric characteristics 6.2.1 Thickness and allowable deviation 6.2.1.1 The nominal thicknesses of the strips are 0.020 mm, 0.025 mm, 0.030 mm. 6.2.2 Width and allowable deviation 6.2.2.1 The width scope of the strips is 10mm ~ 300mm. The specific size shall be determined in the contract. 6.3 Technical characteristics 6.3.1 Density The density used for the calculations of strip magnetic properties and lamination factor is supplied by the supplier. 6.3.2 Lamination factor The strip lamination factor shall comply with Table 1.7 Inspection and measurement7.1 General requirements 7.1.1 The strips shall be submitted for inspection and measurement. Each casting furnace is an acceptance batch. 7.1.2 When the strips are supplied in divided coils. The measurement results on the original acceptance batch apply to this divided coil. 7.2 Sampling 7.2.1 It shall extract a sample respectively on the head, the end of each batch of the strips. When more than one coil is continuously produced in a casting furnace, a sample shall be taken at the end of each coil. The particular requirements shall be determined by the supplier and the purchaser. 7.3 Sample preparation 7.3.1 Physical properties 7.3.1.1 Measurements of DC magnetic properties and AC magnetic properties by toroidal sample 7.3.2 Geometric characteristics 7.3.2.1 The sample preparation used to measure thickness shall comply with the requirements of C.1.1. 7.3.2.2 The sample used for width measurement is usually a strip of a length of 200 mm. 7.3.3 Technical characteristics 7.4 Measurement method 7.4.1 Physical properties 7.4.1.1 The measurement method of using a toroidal sample to measure DC magnetic properties shall be in accordance with GB/T 13012. 7.4.3 Technical characteristics 7.4.3.1 For the strip used to product the distribution transformer iron core, the measurement method of its lamination factor shall be in accordance with C.2.1. 7.5 Re-inspection and determination rules If an inspection item fails, it shall allow to take samples double the number for the re-inspection. Should an item fail in the re-inspection results, then this batch of strips shall be unqualified.8 Packaging, storage, marks and quality certificate8.1 Packaging The strip coil shall use moisture-proof packaging to ensure that the strips do not have quality degradation due to corrosion within 6 months under unopened conditions. 8.2 Storage The packaged strips shall be stored in a dry and ventilated environment. Avoid storage in humid or corrosive atmospheres. The reel of strip coil shall be placed perpendicular to the horizontal plane. 8.3 Marks The reel and packaging box of strip coil shall have firm mark that meets the traceability requirements. 8.4 Quality certificate Each batch of strips delivered shall be attached with quality certificate that proves that this batch of strips comply with the provisions of this Part and order contract. The quality certificate shall contain the following information.9 Order contentThe contract or order according to this Part shall include the following information. ......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 19345.1-2017 be delivered?Answer: The full copy PDF of English version of GB/T 19345.1-2017 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 19345.1-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 19345.1-2017_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. 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