Influence of the technology of melting and inoculation preliminary alloy AlBe5 on change of concentration of Al and microstructure of the bronze CuAl10Ni5Fe4
Journal Title: Archiwum Odlewnictwa - Year 2010, Vol 10, Issue 2
Abstract
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 - inoculant AlBe5 (0÷1,0%) on the effective compensation melting loss of aluminum and time of isothermal holding on the effect of the inoculation 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.
Authors and Affiliations
B. Pisarek
Keywords
Related Articles
- EP ID EP72263
- DOI -
- Views 109
- Downloads 0
Application of Microwaves for Binder Content Assessment in Moulding Sands
The paper presents results of preliminary examinations on possibility of determining binder content in traditional moulding sands with the microwave method. The presented measurements were carried-out using a special sta...
The influence of remelting parameters of the electric arc and conventional tempering on the tribological resistance of high speed steel HS 6-5-2
The present thesis depicts the results of the research of tribological high speed steel HS 6-5-2 remelted with the electric arc. Steel was remelted with different parameters. The amperage of electric arc was changed, the...
Effect of applied pressure on the quality of squeeze cast parts made from AlSi9Mg alloy
The results of the study of an influence of pressure in the direct squeeze casting process on the physical and mechanical properties of an AlSi9Mg alloy are presented. The specimens were made by casting the tested AlSi9M...
Influence of the microstructure and loads on tribological properties of G155CrNiMo4-3-3 cast steel
Materials for mill rolls, fulfilling high requirements due to difficult exploitation conditions, are cast steels of adamite grade. Those are cast steels of pearlitic matrix with uniformly distributed cementite precipitat...
Bainitic nodular cast iron with carbides obtaining with use of Inmold method
In these paper bainitic nodular cast iron with carbides as-cast obtaining has been presented. This cast iron has been obtained with use of Inmold method. It was shown, that there is the possibility of bainite and carbide...