YS/T 63.26-2012 English PDF

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YS/T 63.26-2012: Carbonaceous materials used in the production of aluminium. Part 26: Dense refractory bricks. Determination of cryolite resistance
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 63.26-2012	174	Add to Cart	3 days	Carbonaceous materials used in the production of aluminium. Part 26: Dense refractory bricks. Determination of cryolite resistance	Valid

Similar standards

GB/T 8719   YB/T 042   YS/T 575.1   YS/T 63.14   YS/T 63.20   YS/T 63.19   

Basic data

Standard ID: YS/T 63.26-2012 (YS/T63.26-2012)
Description (Translated English): Carbonaceous materials used in the production of aluminium. Part 26: Dense refractory bricks. Determination of cryolite resistance
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: Q52
Classification of International Standard: 71.100.10
Word Count Estimation: 9,951
Adopted Standard: ISO 20292-2009, IDT
Regulation (derived from): Ministry of Industry and Information Technology Bulletin 2012 No. 20; industry standard filing Notice 2012 No. 10 (No. 154 overall)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the determination of dense refractories molten cryolite with excess sodium permeability approach. This standard applies to aluminum refractories.

YS/T 63.26-2012: Carbonaceous materials used in the production of aluminium. Part 26: Dense refractory bricks. Determination of cryolite resistance

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Carbonaceous materials used in the production of aluminium.Part 26. Dense refractory bricks.Determination of cryolite resistance ICS 71.100.10 Q52 People's Republic of China Nonferrous Metals Industry Standard Aluminum Carbonaceous material Part 26. refractories cryolite Determination of permeability Part 26. Denserefractorybricks- (ISO 20292.2009, IDT) Issued on. 2012-05-24 2012-11-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 63 "Carbonaceous material for aluminum," a total of 26 parts. --- Part 1. firing process, firing weightlessness measurement sample measurement cathode paste and green specimens apparent density; --- Part 2. Determination of cathode blocks and prebaked anodes room temperature resistivity; --- Part 3. Determination of the thermal conductivity of Comparative Law; --- Part 4. Determination of thermal expansion coefficient; --- Part 5. Determination of pressure at the bottom there is sodium expansion of carbon block; --- Part 6. Determination of open porosity hydrostatic law; --- Part 7. Determination of apparent density size method; --- Part 8. Determination of density in xylene Pyknometer; --- Part 9. Determination of true density of helium hydrometer method; --- Part 10. Determination of air permeability; --- Part 11. Determination of the reactivity to air mass loss method; --- Part 12. Determination of the reactivity prebaked anode CO2 mass loss method; --- Part 13. Determination of Young's modulus of the static measurement method; --- Part 14. Determination of flexural strength of three-point method; --- Part 15. Determination of compressive strength; --- Part 16. Determination of Trace Elements in X-ray fluorescence spectrometry method; --- Part 17. Determination of volatile matter; --- Part 18. Determination of moisture content; --- Part 19. Determination of ash content; --- Part 20. Determination of sulfur; --- Part 21. cathode paste firing the expansion/contraction of determination; --- Part 22. Determination of equivalent temperature roasting degree method; --- Part 23. Determination of the reactivity to air prebaked anode thermal gravimetry; --- Part 24. Determination of prebaked anodes CO2 reactivity thermogravimetric method; --- Part 25. Determination of pressure at the bottom there is sodium expansion of carbon block; --- Part 26. Determination of refractories cryolite penetration ability. Part is divided into 26 sections. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with ISO 20292.2009 "carbonaceous materials used in aluminum refractories cryolite penetration measured set". This part identical with ISO 20292.2009, the Introduction and delete its references, the standard name in accordance with the requirements of this standard series We were unified. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. Cable-Development Co., Ltd., Zhengzhou Research Institute, Aluminum Corporation of China, China Nonferrous Metals Industry Standards and Metrology Institute for Quality. Participated in the drafting of this section. Shandong Nanshan Aluminum Co., Ltd. The main drafters of this section. Lang Shining, Wang Liming, GAO Shou Lei, Zheng Ping. Aluminum Carbonaceous material Part 26. refractories cryolite Determination of permeability

1 Scope

YS/T of the provisions of section 63 of the determination of dense refractories cryolite with an excess of sodium permeability molten state approach. This section applies to aluminum electrolytic refractories. Principle 2 The dense refractory material to be measured made into a crucible type specimens loaded cryolite and sodium fluoride powder in the sample mixture (particle size < 100μm), the sample is placed in a furnace, at a reaction temperature of 950 deg.] C, the reaction in the air 24h. Reflecting the strength of refractories cryolite penetration penetration area can be calculated. In addition to the results, the proposed plus table It shows refractories cryolite penetration range of responses visual descriptions and pictures can explain erosion.

3 Sampling

Remove the number of pieces from the same batch of refractories, and then removed from at least two samples are prepared.

4 Reagents

4.1 powder cryolite (Na3AlF6). mass fraction of ≥97%, a particle size of less than 100μm. Powder 4.2 sodium fluoride (NaF). mass fraction of ≥99%, a particle size of less than 100μm. Important. during the electrolysis of aluminum, the electrolyte layer material will penetrate into charcoal, then penetrate refractories. Typically, electrolytic The reaction was mixed with refractory occurrence will prevent further penetration. Therefore, experiment with different refractory penetration resistance is very important. This test Industrial cells and infiltration occurs in good correlation.

5 test device

5.1 water-cooled diamond saw. 5.2 Core drilling. with standard water-cooling rig. 5.3 Rig three components. a) φ50mm diamond core drill bit, drill a hole φ57mm ± 1mm; b) φ30mm core drill bit; c) mounted on the bar of 48mm ~ 50mm diameter steel disc. The bottom surface of the disc has a core drill diamond paste sheet thickness Degree of 3mm, a steel disc with the same radius of curvature (see Fig. 1). ......

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