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YS/T 733-2010 English PDF

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YS/T 733-2010: Determination of the graphitization degree of the graphitized cathode used for aluminium production
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Basic data

Standard ID YS/T 733-2010 (YS/T733-2010)
Description (Translated English) Determination of the graphitization degree of the graphitized cathode used for aluminium production
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard Q52
Classification of International Standard 71.100.10
Word Count Estimation 6,671
Date of Issue 2010-11-22
Date of Implementation 2011-03-01
Regulation (derived from) MIIT (2010) No. 126
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the graphitized cathode products graphitization degree (G value) method. This standard applies to products graphitized cathode graphitization degree (G value) was measured. Measuring range: 70. 0%

YS/T 733-2010: Determination of the graphitization degree of the graphitized cathode used for aluminium production


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Determination of the graphitization degree of the graphitized cathode used for aluminium production ICS 71.100.10 Q52 People's Republic of China Nonferrous Metals Industry Standard Aluminum graphitized cathode products graphitization degree measurement method Issued on. 2010-11-22 2011-03-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard by the Aluminum Corporation of China Guizhou Branch is responsible for drafting. Participated in the drafting of this standard. Zhengzhou Haoyu Carbon Materials Co., Qingtongxia City Green Xin carbon limited liability company. The main drafters of this standard. Panyue Zhi, Wang Qiang, Wu Ye Ling, Wang Baosheng, Ye Qian, Xi Yang Zhao, Yan Xun copper, Mr Chan Jun, Li Chunhu. Aluminum graphitized cathode products graphitization degree measurement method

1 Scope

This standard specifies the graphitized cathode products graphitization degree (G value) measurement method. This standard applies to products graphitized cathode degree of graphitization (G value) was measured. Measurement range. 70.0% \u003cG\u003c100.0%。 If this measurement standard non-graphitized cathode products (semi-graphite, high-quality graphite cathode product) used, which measures the value of the measured cathode system Products in the artificial graphite (graphite scrap) degree of graphitization. Determination of artificial graphite (graphite scrap) content of the proposed reference method for the quantitative determination of α-Al2O3.

2 Definitions

2.1 Graphitization degree GraphitizationDegree Graphitization degree is the chance of an orderly arrangement of the carbon network level. The nature of the degree of graphitization is easy to turbostratic graphite carbon material, graphite as the temperature rises gradually changing, approaching graphite crystal structure The degree of structure. Graphitization degree expressed by the letter G, G value expressed as a percentage (%).

3 PRINCIPLE OF THE METHOD

The crystal structure parameters of the graphite crystal plane of electrolytic cathode spacing d (002) is an important index of graphitization degree. This part of the Add internal standard analysis and processing of graphite cathode X-ray diffraction pattern of the sample, accurately detect the spacing d (002), and then calculated by the formula The degree of graphitization G value.

4 Instrument

4.1 X-ray powder diffraction. General stability better than 1%, goniometer 20 ° ~ 30 ° (2θ) accuracy better than ± 0.01 ° (2θ), capable of Velocity ≤0.1 °/s (step ≤0.01 °) is scanned. 4.2 test model. the ability to load abraded samples. 4.3 standard sieve. the preparation of wire mesh test sieve (φ200 × 50-0.075/0.05). 4.4 drying box. room temperature ~ 200 ℃, ± 5 ℃ controllable. 4.5 Balance. a sense of the amount of 0.0001g. 4.6 agate mortar. smooth surface, no scratches. 4.7 dryer. built-in desiccant.

5 Sample

5.1 internal standard α-Al2O3 powder standard. 5.2 Diffraction Sample 5.2.1 About 20g sample (4.6) grinding in an agate mortar until all the standards by 0.075mm sieve (4.3), will be good research sample

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