BS EN IEC 60404-8-11:2018
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Magnetic materials – Specifications for individual materials. Fe-based amorphous strip delivered in the semi-processed state
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 28 |
IEC 60404-8-11:2018 defines the grades of Fe-based amorphous strip delivered in the semi?processed state, i.e. without final heat treatment, of nominal thickness 0,025 mm. Other nominal thicknesses in the range from 0,020 mm to 0,030 mm can be specified by agreement between the manufacturer and the purchaser at the time of enquiry and order. In particular, it gives general requirements, magnetic properties, geometric characteristics, tolerances and technological characteristics, as well as inspection procedures. This document applies to the rapidly-solidified Fe-based amorphous strip supplied in coils with as-cast edges and intended for the construction of magnetic circuits. The grades are grouped into two classes: – conventional grades; – high permeability grades. They correspond to Class I1 of IEC 60404-1.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | English CONTENTS |
| 9 | FOREWORD |
| 11 | INTRODUCTION |
| 12 | 1 Scope 2 Normative references 3 Terms and definitions |
| 13 | 4 Classification 5 Designation 6 General requirements 6.1 Production process |
| 14 | 6.2 Form of supply 6.3 Delivery condition 6.4 Surface condition 6.5 Suitability for cutting |
| 15 | 7 Technical requirements 7.1 Magnetic properties 7.1.1 Reference condition 7.1.2 Magnetic polarization 7.1.3 Specific total loss |
| 16 | Tables Table 1 – Technological properties and magnetic propertiesof the conventional grades of Fe-based amorphous strip |
| 17 | 7.2 Geometrical characteristics and tolerances 7.2.1 Thickness Table 2 – Technological properties and magnetic properties ofthe high permeability grades of Fe-based amorphous strip |
| 18 | 7.2.2 Width 7.2.3 Length 7.2.4 Edge camber 7.2.5 Edge wave (wave factor) 7.2.6 Residual curvature 7.2.7 Burr height 7.3 Technological characteristics 7.3.1 Density Table 3 – Tolerances on the nominal width of Fe-based amorphous strip |
| 19 | 7.3.2 Stacking factor 7.3.3 Strip tear ductility 7.3.4 Internal stresses 7.3.5 Surface insulation resistance 8 Inspection and testing 8.1 General Table 4 – Ductility code and number of brittle spots of Fe-based amorphous strip |
| 20 | 8.2 Selection of test samples 8.3 Preparation of test specimens 8.3.1 Magnetic properties 8.3.2 Geometrical characteristics and tolerances |
| 21 | 8.3.3 Technological characteristics 8.4 Test methods 8.4.1 General 8.4.2 Magnetic properties 8.4.3 Geometrical characteristics and tolerances |
| 22 | 8.4.4 Technological characteristics 8.5 Retests 9 Marking, labelling and packaging 10 Complaints |
| 23 | 11 Information to be supplied by the purchaser 12 Information to be supplied by the manufacturer |
| 24 | Annex A (informative)Non-specified magnetic properties Table A.1 – Non-specified magnetic propertiesof Fe-based amorphous strip |
| 25 | Annex B (normative)Test method of determination of the stacking factor for Fe-based amorphous strips B.1 General B.2 Test specimen B.3 Measurement procedure |
| 26 | Figure B.1 – Schematic diagram of a stacking specimen and a linear measuring device on side view (a) and on top view (b) |
| 27 | B.4 Reproducibility |
