Study of precipitation hardening in lead calcium tin anodes for copper electrowinning

C. Camurri; C. Carrasco; O. Prat; R. Mangalaraja; A. Pagliero; R. Colàs

doi:10.1179/174328409X443245

Study of precipitation hardening in lead calcium tin anodes for copper electrowinning

C. Camurri, C. Carrasco, O. Prat, R. Mangalaraja, A. Pagliero, R. Colàs

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

A suitable yield stress for Pb anodes with 0•07%Ca and 1•3%Sn of 6 mm thickness for copper electrowinning is achieved by means of deformation and precipitation hardening processes, their useful life being dependent on this yield stress. The objective of the present work was to optimise the precipitation hardening, by finding the best cooling conditions for the anodes in the moulds and the optimum hot rolling temperature. The results show that increasing the cooling rate of ingots beyond the rate of natural cooling enhances the precipitation hardening. At least 45 days of aging are necessary to reach stable conditions for the precipitation hardening, with precipitates formation as CaSn₃. The hot rolling temperature does not have a significant effect on the precipitation hardening of the anodes.

Original language	English
Pages (from-to)	210-214
Number of pages	5
Journal	Materials Science and Technology
Volume	26
Issue number	2
DOIs	https://doi.org/10.1179/174328409X443245
State	Published - 1 Feb 2010
Externally published	Yes

Keywords

Lead base anodes
Precipitation and deformation hardening
Yield stress

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10.1179/174328409X443245

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title = "Study of precipitation hardening in lead calcium tin anodes for copper electrowinning",

abstract = "A suitable yield stress for Pb anodes with 0•07%Ca and 1•3%Sn of 6 mm thickness for copper electrowinning is achieved by means of deformation and precipitation hardening processes, their useful life being dependent on this yield stress. The objective of the present work was to optimise the precipitation hardening, by finding the best cooling conditions for the anodes in the moulds and the optimum hot rolling temperature. The results show that increasing the cooling rate of ingots beyond the rate of natural cooling enhances the precipitation hardening. At least 45 days of aging are necessary to reach stable conditions for the precipitation hardening, with precipitates formation as CaSn3. The hot rolling temperature does not have a significant effect on the precipitation hardening of the anodes.",

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T1 - Study of precipitation hardening in lead calcium tin anodes for copper electrowinning

AU - Camurri, C.

AU - Carrasco, C.

AU - Prat, O.

AU - Mangalaraja, R.

AU - Pagliero, A.

AU - Colàs, R.

PY - 2010/2/1

Y1 - 2010/2/1

N2 - A suitable yield stress for Pb anodes with 0•07%Ca and 1•3%Sn of 6 mm thickness for copper electrowinning is achieved by means of deformation and precipitation hardening processes, their useful life being dependent on this yield stress. The objective of the present work was to optimise the precipitation hardening, by finding the best cooling conditions for the anodes in the moulds and the optimum hot rolling temperature. The results show that increasing the cooling rate of ingots beyond the rate of natural cooling enhances the precipitation hardening. At least 45 days of aging are necessary to reach stable conditions for the precipitation hardening, with precipitates formation as CaSn3. The hot rolling temperature does not have a significant effect on the precipitation hardening of the anodes.

AB - A suitable yield stress for Pb anodes with 0•07%Ca and 1•3%Sn of 6 mm thickness for copper electrowinning is achieved by means of deformation and precipitation hardening processes, their useful life being dependent on this yield stress. The objective of the present work was to optimise the precipitation hardening, by finding the best cooling conditions for the anodes in the moulds and the optimum hot rolling temperature. The results show that increasing the cooling rate of ingots beyond the rate of natural cooling enhances the precipitation hardening. At least 45 days of aging are necessary to reach stable conditions for the precipitation hardening, with precipitates formation as CaSn3. The hot rolling temperature does not have a significant effect on the precipitation hardening of the anodes.

KW - Lead base anodes

KW - Precipitation and deformation hardening

KW - Yield stress

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JO - Materials Science and Technology

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Study of precipitation hardening in lead calcium tin anodes for copper electrowinning

Abstract

Keywords

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