Method and Apparatus for Assessing the Properties of Slags

• Autorzy: Biernat S. , Bydałek A. W. , Wołczyński W. , Holtzer M.

Identyfikatory

DOI

10.1515/afe-2017-0082

• Języki publikacji: EN

Abstrakty

EN

A special Slag-Prop Cu database has been developed to archive data from laboratory and industrial tests related to post-reduction slags. In order to enrich the data areas, it was decided to design a system for measuring the temperature of the liquid slag and its viscosity. Objectives of research work are to gather information on the properties of post-slags such as the temperature of liquid slag and its viscosity. The discussed issues are especially important in the foundry practice. Designed research stand and using of database applications can greatly facilitate the work of metallurgists, foundrymen, technologists and scientists. The viscosity measurement was developed and presented earlier. The author's analytical methodology was supplemented by a thyristor measuring system (described in the article). The system temperature measurement can be performed simultaneously in 3 ways to reduce the measurement error. Measurement of the voltage mV - using the Seebeck effect can be measured throughout the entire range of thermocouple resistance, up to 1300 °C. Direct temperature measurement ⁰C - measurement only below 1000 ⁰C. Additional measurement - the measurement can also be read from the pyrometer set above the bath. The temperature and the reading frequency depend on the device itself. The principle of measurement is that in a molten metal / slag crucible, we put a N-type thermocouple. The thermocouples are hung by means of a tripod above the crucible and placed in a crucible. The thermocouple is connected to a compensating line dedicated to this type of thermocouple. The cable is in turn connected to a special multimeter that has the ability to connect to a computer and upload results. Temperature measurement can be performed simultaneously in 3 ways to reduce the measurement error. The Sn-Pb alloy has been subjected to testing for proper operation of the device. In this foot should be observed the supercooling of the liquid, which initiates the crystallization process and in which latent heat begins to exude raising the temperature until the coagulation temperature is reached.

Słowa kluczowe

EN

environmental protection; innovative materials; innovative casting technologies; laboratory station; slags

PL

ochrona środowiska; innowacyjne materiały odlewnicze; technologie innowacyjne; stanowisko laboratoryjne; żużle

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 3
• Strony: 13--18
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Biernat S.

• State Higher Vocational School in Głogów, Głogów, Polska

autor

Bydałek A. W.

• State Higher Vocational School in Głogów, Głogów, Polska
• University of Zielona Góra, Faculty of Mechanical Engineering, ul. Podgórna 50, 65-246 Zielona Góra, Polska

autor

Wołczyński W.

• Institute of Metallurgy And Materials Science of Polish Academy Of Sciences, ul. Reymonta 25, 30-059 Kraków, Poland

autor

Holtzer M.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Reymonta 23, 30-059 Krakow, Poland

Bibliografia

• [1] Holappa, L. & Taskinen, P. (2017). Process innovations and sustainability in Finnish metallurgical industries. Transactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy. 126 (1-2), 70-80.ISSN (03717844).
• [2] Karwan, T. (2013). Metallurgy of non-ferrous metal (in Polish). Kraków – Bukowno: Wydaw. Beltrani. ISBN (978-83-913252-7-8).
• [3] Madej, P. & Kucharski, M. (2015). Influence of temperature on the rate of copper recovery from the slag of the flash direct-to-blister process by a solid carbon reducer. Archives of Metallurgy and Materials. 60(3A), 1663-1671. ISSN (2300-1909).
• [4] Sarfo, P., Wyss, G., Ma, G., Das, A. & Young, C. (2017) Carbothermal reduction of copper smelter slag for recycling into pig iron and glass. Minerals Engineering. 107, 8-19. ISSN (0892-6875).
• [5] Fernández-Caliani, J.C., Moreno-Ventas, I., Bacedoni, M. & Ríos, G. (2017). Mineral chemistry and phase equilibrium constraints on the origin of accretions formed during copper flash smelting. Minerals and Metallurgical Processing. 34 (1), 36-43. ISSN (0747-9182).
• [6] Bydałek, A.W., Wołczyński, W., Bydałek, A., Schlafka, P. & Kwapisiński, P. (2015). Analysis of separation mechanism of the metallic phase of slag in the direct-to-blister process, Archives of Metallurgy and Materials. 60(3), 2347-2353. ISSN (2300-1909).
• [7] Schlafka, P., Bydałek, A.W., Holtzer, M. & Wołczyński, W. (2016). The Influence of The Ionic Reactions on the Refining Secondary Raw Materials; Metalurgija, 55(4), 609-612. ISSN (0543-5846).
• [8] Jura, Z. (2000). Method of crystallization heat definition in temperature function for metal alloys. Solidification of Metals and Alloys. 43(2), 299-302. ISSN (0208-9386).
• [9] Park, J.H., Park, S., Han, X.-F. & Yi, K.W. (2016). Numerical analysis on fluid flow and heat transfer in the smelting furnace of mitsubishi process for Cu refining. Metals and Materials International. 22(1), 118-128. ISSN (1598-9623).
• [10] Dudyk, M., Wasilewski, P., Ciućka, T. & Pezda, J. (1998). Simultaneous recording of crystallization process of aluminium alloys with ATD and AED methods. Archives of Metallurgy. 43(4), 321-328. ISSN (1733-3490).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)