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Aqueous acid-aided corrosion products removal from the surface of the brass elements of heat exchangers
https://doi.org/10.22349/1994-6716-2019-98-2-110-115
Abstract
The paper studies complex effect of various factors on the process of cleaning brass brand L-68, used for the manufacture of heat exchange equipment. It has been established that acids of various strengths can be used as working solutions. The speed of the cleaning process depends on the nature of the acid and its initial concentration. For strong acids, a working solution with low concentration is recommended, followed by an increase in their concentration during the cleaning process. Additional input of oxygen into the system and an increase of the working solution temperature increase the cleaning rate of brass. The cleaning process proceeds without significant changes in the surface configuration, and, consequently, the expenditure of metal.
About the Authors
L. M. Mironovich
Southwest State University
Russian Federation
Dr Sc. (Eng)
Russian Federation
Dr Sc. (Eng)
A. Yu. Eliseev
Southwest State University
Russian Federation
Russian Federation
A. Yu. Eliseeva
Southwest State University
Russian Federation
Russian Federation
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Review
For citations:
Mironovich L.M., Eliseev A.Yu., Eliseeva A.Yu. Aqueous acid-aided corrosion products removal from the surface of the brass elements of heat exchangers. Voprosy Materialovedeniya. 2019;(2(98)):110-115. (In Russ.) https://doi.org/10.22349/1994-6716-2019-98-2-110-115
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