YS/T 63.10-2012Carbonaceous materials used in the production of aluminium. Part 10: Determination of the air permeability (English PDF)

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 the reactivity prebaked anode carbon dioxide thermal gravimetry;

--- Part 25. Determination of no pressure sodium expansion of the bottom of the carbon block;

--- Part 26. Determination of refractories cryolite penetration ability.

This section 10.

This section drafted in accordance with GB/T 1.1-2009 given rules.

The partial replacement of YS/T 63.10-2006.

This section uses redrafted Law Amendment uses ISO 15906:2007 "carbonaceous materials used in the production of aluminum air permeability of prebaked anodes Determination. " This part of ISO 15906:2007 made the following editorial changes.

--- Remove the ISO 15906:2007 Foreword Introduction;

--- Standard name in accordance with the requirements of this series of standards has been modified.

This part of ISO 15906:2007, compared with more adjustment in the structure, listed in Appendix A of this part of the ISO 15906:2007 the reg number control list.

This part of ISO 15906:2007 technical differences exist compared to the terms of these differences has been involved through its outer margin bits Set a single vertical line (|) have been marked, Appendix B gives a list of corresponding technical differences and their causes.

The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.

This section is responsible for drafting units. Aluminum Corporation of China Zhengzhou Research Institute, China Nonferrous Metals Industry Quality Standards and Metrology Institute the study.

Participated in the drafting of this section. Shandong Chenyang Carbon Co., Ltd., Shandong Yankuang Carbon Products Co., Ltd., Shanxi Jinyang carbon stocks Parts Ltd., Shandong Nanshan Aluminum Co., Ltd.

1 Scope

YS/T of the provisions of section 63 of the method for the determination of air permeability of prebaked anodes. Measuring range. 0.01 × 10-9 m2 ~ 20 × 10-9m2.

This section applies to the determination of air permeability of prebaked anodes. Not available for unfired anode.

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 26297.3 carbonaceous materials used in aluminum sampling methods - Part 3 prebaked anode Principle 3 Air permeability measurement sample by comparison. A volume of air through the test specimen of time, this time with the same volume the results of air permeability of the air by a known standard sample is compared, whereby the air permeability of the sample.

4 Device

Caliper 4.1. accuracy of 0.02mm.

4.2 air permeability measuring apparatus comprising.

4.2.1 Vacuum pump. a vacuum degree of 10Pa can import and export to generate high pressure 400Pa, the maximum flow rate can be achieved 25L/min.

4.2.2 Air permeation apparatus. 1, designed to ensure that the chamber sealed sample four weeks. Compressed air hose pressed specimens from Leaving the sample sealed cylindrical. Porous filter paper and sponge rubber protective effect, dust particles and samples can not enter the pump.