TEST METHOD FOR THE DETERMINATION OF ABRASION STRENGTH AND ABRASIVE ABILITY OF FOUNDRY COKE
https://doi.org/10.17073/0368-0797-2016-3-149-153
Abstract
Nowadays there are no standard methods for the determination of abrasion strength and abrasive ability of foundry coke under conditions close to the conditions of coke moving on a conveying belt, conveyer or in a furnace shaft. The present work presents the test method for the determination of foundry coke abrasion strength and abrasive ability. For tests making the coke samples with particle sizes of 40–60 and 60–80 mm were selected from four diff erent coke lots. The testing was carried out in the vibration machine with total amplitude of vibration of 1.6 mm. Vibrator was equipped with a special tool of the form of container with the aluminum plate fi xed at the bottom. It created vibrations which were communicated to the coke sample and created testing conditions. The testing time was 30 min. The fractional losses of coke sample mass indicate its abrasion strength and the fractional losses of aluminum plate – the coke abrasive ability. Obtained values of abrasion strength and abrasive ability after testing were in agreement with M40 strength index. The coke of 60–80 mm size has more abrasive ability than coke of 40–60 mm. At this time, the coke abrasion strength decreases about 22 and 41 % correspondingly for coke of 40–60 and 60–80 mm with increase in foundry coke strength, and the abrasive ability increases by 7.6 and 2.3 times correspondingly.
About the Authors
V. A. Ivanova
Yaroslavl State Technical University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor, Head of the Chair of Materials Technology, Standardization and Metrology,
Yaroslavl
K. N. Vdovin
Magnitogorsk State Technical University named after G.I. Nosov
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Head of the Chair “Materials Science and Foundary”,
Magnitogorsk
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Review
For citations:
Ivanova V.A., Vdovin K.N. TEST METHOD FOR THE DETERMINATION OF ABRASION STRENGTH AND ABRASIVE ABILITY OF FOUNDRY COKE. Izvestiya. Ferrous Metallurgy. 2016;59(3):149-153. (In Russ.) https://doi.org/10.17073/0368-0797-2016-3-149-153
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