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SN/T 3112-2012 English PDF

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SN/T 3112-2012: Method of distinguishing grain orientation and non-orientation of cold-rolled silicon steel sheets
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SN/T 3112-2012English209 Add to Cart 3 days [Need to translate] Method of distinguishing grain orientation and non-orientation of cold-rolled silicon steel sheets Valid SN/T 3112-2012

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Basic data

Standard ID SN/T 3112-2012 (SN/T3112-2012)
Description (Translated English) Method of distinguishing grain orientation and non-orientation of cold-rolled silicon steel sheets
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard H54
Classification of International Standard 77.140.50
Word Count Estimation 8,890
Quoted Standard GB/T 3655; GB/T 13789
Regulation (derived from) National Quality Inspection (2012) 237; industry standard filing Notice 2012 No. 9 (Total No. 153);
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the cold-rolled grain-oriented silicon steel sheet identification method. This standard applies to a thickness of not more than 0. 65mm cold rolled non-oriented silicon steel sheet and cold rolled grain oriented silicon steel sheet

SN/T 3112-2012: Method of distinguishing grain orientation and non-orientation of cold-rolled silicon steel sheets


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Method of distinguishing grain orientation and non-orientation of cold-rolled silicon steel sheets People's Republic of China Entry-Exit Inspection and Quarantine Standards Cold-rolled silicon steel grain-oriented identification methods Issued on. 2012-05-07 2012-11-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. Tianjin People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. FU Zhi-Qiang, Wei Hongbing, Zhao Jiangyong, Guojun Cheng, HE Tracy. Cold-rolled silicon steel grain-oriented identification methods

1 Scope

This standard specifies the method of identifying a grain-oriented silicon steel cold rolling resistance. This standard applies to a thickness no greater than 0.65mm cold-rolled non-oriented silicon steel and cold-rolled silicon steel sheet orientation discrimination.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 3655 Method (band) magnetic properties with Epstein measuring electrical steel sheet GB/T 13789 single sheet tester measurement of electrical steel sheet (strip) of magnetic energy

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Iron loss specifictotalloss When the magnetic flux density over time by sine law change, its peak for a scaling value, a change in frequency when the calibration frequency in quality The amount of the core at temperature 20 ℃ power consumption as the total loss ratio, referred to as iron loss, in units of watts per kilogram (W/kg). 3.2 Grain-oriented grainorientation Preferred orientation silicon steel by deformation and annealing process recrystallized grains generated.

4 principle of the method

The first method by measuring the thickness of cold-rolled silicon steel sheet, the preliminary determination of its orientation, and for the next magnetic measurement parameters to identify indicators Number, and then test the iron loss through horizontal and vertical ratio of iron loss to the final determination of grain-oriented silicon steel.

5 identification procedures and methods

5.1 Sampling In accordance with the appropriate sampling protocols to extract a representative sample of the whole consignment, the sample volume should be less prepared to meet the required test items. sample Good surface quality, there should be no scratches, rust, folding and other visible defects. 5.2 sample preparation Magnetic measurement sample was cut into 500mm × 500mm priority monolithic samples, to ensure compliance with the cutting direction and angle GB/T 13789 monolithic test sample requirements. If samples are not cut into 500mm × 500mm, then cut into 30mm × 300mm square sample ring, the vertical and horizontal of a group, to ensure compliance with its sample of GB/T 3655's.

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