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Study of Inhibition Function of Grinding Fluid Additive to Leaching Cobalt from Cemented Carbide

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Abstract:

Grinding fluid is the essential supplementary material in cemented carbide grinding process. The amine-base additive can make cobalt leach from cemented carbide. Through grinding test, this paper mainly studies the influence of TEA-containing solution on cobalt leaching from cemented carbide and the leaching mechanism by SEM and AES, and then identifies the effective inhibitor. The results are as follows: (1) TEA additive can make cobalt leach from cemented carbide. (2) Additive of triethanolamine oleate in the solution can obviously inhibit the leaching of cobalt from cemented carbide. (3) Additive of benzotriazole in the solution can obviously inhibit the leaching of cobalt from cemented carbide. (4)The mixture of triethanolamine oleate, borax and benzotriazole has the best inhibition function. So it can conclude: The mixture of triethanolamine oleate, borax and benzotriazole can obviously reduce the leaching of cobalt from the cemented carbide, and reduce the danger of the fluid to human body.

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Periodical:

Key Engineering Materials (Volume 416)

Pages:

381-385

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.416.381

Citation:

Cite this paper

Online since:

September 2009

Authors:

Hao Qiang Zhang, Xiao Ming Jia, Fei Wang

Keywords:

Cemented Carbide, Cobalt Leaching, Grinding Fluid, Inhibitor

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