Water mist effect on cooling process of casting die and microstructure of AlSi9 alloy

• Autorzy: Władysiak R.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of crystallization and cooling process of silumin AlSi9 and temperature distribution in the wall of research casting dies made of cast iron and steel in the temperature range 650÷100 ^oC during casting of silumin using water mist cooling consisting with air compressed (0,3÷0,4 MPa) and water (0,35÷0,45 MPa). It’s shown the nature and rate of change of casting die temperature and the formation of the temperature gradient at the wall thickness in the axis of the nozzle cooling the outer surface of the wall of casting die. Using derivative curves and regression models were compared to the temporary and average speed of crystallization and cooling of the casting in the 75÷200 ^oC temperature range. The differences of microstructure resulting from a change in the type of casting die, wall thickness of casting and the use of cooling water mist. It has been shown that the use of water mist and the changing wall thickness of die and the casting cooled pointwise lets you control the crystallization process, microstructure and quality of the silumin casting.

Słowa kluczowe

EN

innovative casting materials; innovative casting technologies; cooling; water mist; die casting; silumin

PL

materiały odlewnicze; nowoczesne technologie odlewnicze; chłodzenie; mgła wodna; odlewnia; silumin

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 2
• Strony: 185--194
• Opis fizyczny: Bibliogr. 4 poz., fot., rys., wykr.

Twórcy

autor

Władysiak R.

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

Bibliografia

• [1] Władysiak R.: Zastosowanie mgły wodnej w procesie odlewania kół samochodowych, Archiwum Odlewnictwa nr 22, 2006, 552-561.
• [2] Władysiak R.: Intensyfikacja procesu odlewania kokilowego kół samochodowych - Conference proceedings „Polish Metallurgy in Years 2002-2006”, Comitee of Metallurgy, 2006, 359-366.
• [3] Władysiak R.: Reengineering of permanent mould casting with lean manufacturing methods, Archives of foundry, v. 7, issue 3, 2007, 205-212.
• [4] Władysiak R.: Water mist effect on heat transfer coefficient in cooling of casting die, Archives of foundry, v. 8, issue 3, 2008, 227-236.