Influence of the technology of melting and inoculation preliminary alloy AlBe5 on change of concentration of Al and microstructure of the bronze CuAl10Ni5Fe4

• Autorzy: Pisarek B.
• Języki publikacji: EN

Abstrakty

EN

Examining was the aim of the work: influence of the permanent temperature 1300°C ± 15°C and changing time of isothermal holding in the range 0÷50 minutes on the melting loss of aluminum in the bronze CuAl10Ni5Fe4; the quantity the slag rafining - covering Unitop BA-1 (0÷1,5%) on the effectiveness of the protection of liquid bronze before the oxygenation, the quantity of the preliminary alloy - in-oculant AlBe5 (0÷1,0%) on the effective compensation melting loss of aluminum and time of isothermal holding on the effect of the in-oculation of the bronze and the comparison of the effectiveness of the inoculation of the bronze in furnace and in the form. Introduced investigations resulted from the study of the new grades of the Cu-Al-Fe-Ni bronze with additions singly or simultaneously Si, Cr, Mo and/or W, to melting which necessary it is for high temperature and comparatively long time isothermal holding indispensable to the occur of the process of diffusive dissolving the high-melting of the bronze components. High temperature and lengthening the time of isothermal holding the liquid bronze in casting furnace the melting loss of Al influences the growth. Addition the slag of covering-refining Unitop BA-1 in the quantity 1,5% the bronze protects before the melting loss of aluminum by the time of isothermal holding in the temperature 1300°C about 15 minutes. Addition of the preliminary alloy AlBe5 in the quantity 0,6% it assures the effective compensation of the aluminum which melting loss undergoes for the studied parameters of the melting. The effect of the inoculation of the bronze together with diminishes the preliminary alloy AlBe5 with lengthening the time of isothermal holding. Because of this, use of the method of introducing the preliminary alloy it is seems good solution on the inoculation of aluminum bronzes directly to form, unsensitive on the time of isothermal holding the bronze.

Słowa kluczowe

EN

innovative casting technologies; innovative casting materials; slag; melting; alloy AlBe5; bronze CuAl10Ni5Fe4; inoculant

PL

materiały odlewnicze; innowacyjne technologie odlewnicze; odlewnictwo; żużel; topienie; modyfikator

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 2
• Strony: 127--134
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Pisarek B.

• Technical University of Łódź, Department of Materials Engineering and Production Systems, 1/15 Stefanowskiego Str., 90-924 Łódź, Poland

Bibliografia

• [1] Korzec R., Fajkiel A., Czekaj E.: Instruction of melting of the alloys of non-ferrous metals. The alloys of the copper, Publishing house Founding Institute, Cracow 2002 (In Polish).
• [2] Górny Z., Sobczak J.: Modern casting materials on the base of non-ferrous metals, Publishing house ZA-PIS, Cracow 2005 (In Polish).
• [3] Górny Z.: Casting aluminium bronzes, Part I and II, Publishing house Founding Institute, Cracow 2006 (In Polish).
• [4] PEDMO S.A. [online] [access: 26-04-2010] Accessible in Internet: http://www.pedmo.com.pl/index.php?oferta=1&page=5 (In Polish).
• [5] Romankiewicz F.: The inoculation of copper and its alloys, Poznan - Zielona Gora : Scientific Publishing House Committee on Science of Materials Sciences, Branch in Poznan and University of Zielona Gora, 1999 (In Polish).
• [6] Jurczak W., Schmidt J.: The investigation of present materials designed on shipping propeller, Scientific Papers of the Naval Academy, Vol. XLX, no 2 (177), pp. 19-32, 2009 (In Polish).
• [7] Pisarek B.: The crystallization of the bronze with additions of Si, Cr, Mo and/or W, Archives of Materials Science and Engineering, vol. 28, Issue 8, pp. 461-466, August 2007.
• [8] Pisarek B.: Influence Cr on crystallization and the phases transformations of the bronze BA1044, Archives of Foundry Engineering, Vol. 7, issue 3, pp. 129-136, July-September 2007.
• [9] Pisarek B.: Abrasive wear of BA1055 bronze with additives of Si, Cr, Mo and/or W, Archives of Foundry Engineering, Vol. 8, issue 3, pp. 209–216, July–September 2008.
• [10] Pisarek B.: The influence of wall thickness on the microstructure of bronze BA1055 with the additions of Si, Cr, Mo and/or W, Archives of Foundry Engineering, Vol. 8, issue 4, pp. 185-192, Octomber–December 2008.