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Insights into metal wear and particle breakage using Bond's abrasiveness test
Minerals Engineering ( IF 4.8 ) Pub Date : 2024-03-24 , DOI: 10.1016/j.mineng.2024.108672
Alan A.A. Tino , Gabriel K.P. Barrios , Luís Marcelo Tavares

Nearly 80 years ago Fred Bond proposed his abrasiveness test, also known as Allis Chalmers abrasion test, together with empirical equations that have been used to predict the wear of mill and crusher liners, besides grinding media. Although those equations have been widely criticized over the years, in particular owing to the limited accuracy of the correlations originally proposed to predict wear, it remains the most widely used test to measure ore abrasiveness in the minerals industry. The work analyzes the test, through experiments conducted under conditions that differ from those originally proposed by Bond in order to gain insights on metal wear and particle breakage. The effects of particle size, ore competence, metal hardness and time of batch operation are analyzed. It is shown that initial particle size strongly affects the rate of wear, that the intensity of fragmentation varies with hardness of the paddle and that the size distribution from the ground material offers a valid proxy for ore competence that may be useful in geometallurgical studies.

中文翻译:

使用 Bond 磨料测试深入了解金属磨损和颗粒破碎

大约 80 年前,Fred Bond 提出了他的磨损性测试(也称为 Allis Chalmers 磨损测试)以及经验方程,这些方程已用于预测磨机和破碎机衬板(除研磨介质外)的磨损情况。尽管这些方程多年来受到广泛批评,特别是由于最初提出的用于预测磨损的相关性的准确性有限,但它仍然是矿物工业中测量矿石磨蚀性最广泛使用的测试。这项工作通过在与邦德最初提出的条件不同的条件下进行的实验来分析测试,以便深入了解金属磨损和颗粒破碎。分析了粒度、矿石能力、金属硬度和间歇操作时间的影响。结果表明,初始颗粒尺寸对磨损率有很大影响,破碎强度随桨叶硬度的变化而变化,并且磨碎材料的尺寸分布为矿石能力提供了有效的代表,这可能在地质冶金研究中有用。
更新日期:2024-03-24
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