Bench life (work time) of moulding and core sands with chemical binders – a new, ultrasound investigation method

• Autorzy: Zych J.
• Języki publikacji: EN

Abstrakty

EN

The obtained results of the investigations of influences of the selected technological factors on the bench life (work time) of moulding and core sands with chemical binders are presented in the hereby paper. The bench life assessment is performed by the new, author’s method with the application of the ultrasound technique. This method was patented by the author. The influence of such factors as: matrix (surroundings) temperature, matrix water content, ratio of binding components hardener/binder (h/b) and the reclamation – on the bench life of furan moulding sands was determined. The empirical dependencies (regressions) were determined, which allowed forecasting the bench life (B_L) of moulding sands as functions: B_L = f(W%), B_L = f(T) for the fresh and after the reclamation sands, B_L = f(h/b). These dependencies should be treated as examples of the new method application for investigating the bench life of moulding sands with chemical binders.

Słowa kluczowe

EN

bench life; ultrasound; binding sand; moulding sand; investigation method

PL

ultradźwięk; materiał wiążący; masa formierska; metoda badawcza

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2013
• Tom: Vol. 13, iss. 4
• Strony: 117--122
• Opis fizyczny: Bibliogr. 12 poz., wykr.

Twórcy

autor

Zych J.

• AGH University of Science and Technology, Faculty of Foundry Engineering, al. A. Mickiewicza 30, 30-059 Krakow

Bibliografia

• [1] Lewandowski, J.L. (1997). Materials for Moulds. Kraków: Wydawnictwo Akapit.
• [2] Lewandowski, J.L. (1992). Materials for Moulds – Research- Part II. Kraków, Wydawnictwa AGH, skrypt uczelniany Nr 1233.
• [3] Ignaszak, Z. (2011). Contribution to determination of the life time of chemically self-hardening mould sand. Archives of Foundry engineering. 11(4), 55-60.
• [4] Zych, J. (2001). Research of kinetics hardening of chemical bonding mould sand by ultrasonic method. Acta Metallurgica Slovaca, Košice. 7(3), 141-146.
• [5] Zych, J. (2002). The novel ultrasonic method of monitoring the setting process of moulding sands with chemical binders. Przegląd Odlewnictwa. 52(5), 162-168.
• [6] Zych, J. (2003). Novo metodo ultra - sonico de monitoracao do processo de cura. Fundicao e Servicos, (Agosto). 128. 146-156.
• [7] Zych, J. (2000). Ultraschallmethode bei der Verfahrenkontrolle der Bindung chemisch gebundener Formsande. Giesserei – Rundschau, Jän/Febr., Heft. 1/2, 10-14.
• [8] Zych, J. (1999). Method of examining the hardening process of core and moulding sand mixes containing a hardenable binder; Patent PL 192-202 (P.-334-715 z dnia 29.07. 1999, AGH).
• [9] Drożyński, D. (2002). Surface phenomena in the process of binding the masses cold-box technology. Unpublished doctoral dissertation, AGH, Kraków.
• [10] Dobosz, S.M. (2006). Water in sand molds and cores. Kraków: Wydawnictwo Akapit.
• [11] Zych, J. (2004). Nondestructive methods of forecasting of the quality of castings produced in moulds made of moulding sands with binders. Archiwum Odlewnictwa. 4(13), 253-260.
• [12] Zych. J.S. (2012). Durability of moulding sands and core sands – a new method of testing. III Konferencja Huttenes-Albertus Polska: Materiały formierskie i rdzeniarskie – teoria i praktyka : 20–22 maj 2012 r., Zakopane (pp. 107–111).