Water mist effect on cooling process and microstructure of silumin

• Autorzy: Władysiak R.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of the process of crystallization and cooling of the AlSi11 silumin and temperature distribution in the wall of iron and bronze research casting die in the temperature field of 750 to 100oC in casting of the silumin with use of water cooling mist in the air at a pressure of 0.30 to 0.40MPa and the water from 0.35 to 0.45MPa. Showing the nature and rate of change of temperature in die casting and the formation of temperature gradient on the thickness of the die casting wall in the direction of the nozzle surface of the outer wall of the cooling die casting. Using derivation curves and regression equations there has been compared: the mean and instantaneous rates of crystallization and cooling cast in values of 750 - 200oC. In addition, there are presented the differences arising from the microstructure change of the die's type and thickness of its walls, the thickness of cast and the fact of using cooling water mist. The conduct of the changes of the hardness of the cast as a result of the applied cooling method of the die casting. It has been shown that the use of water mist with a variability of the die's wall thickness in the cooling zone gives control of the crystallization process, microstructure and mechanical properties of the final silumin cast.

Słowa kluczowe

EN

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

PL

materiały innowacyjne; technologie innowacyjne; odlewanie; chłodzenie; mgła wodna; odlewanie kokilowe; silumin

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 3
• Strony: 205--210
• Opis fizyczny: Bibliogr. 5 poz., rys., wykr.

Twórcy

autor

Władysiak R.

• Department of Material Technologies and Production Systems, Technical University of Lodz 1/15 Stefanowskiego Street, 90-924 Łódź, Poland,

Bibliografia

• [1] R. Władysiak: Zastosowanie mgły wodnej w procesie odlewania kół samochodowych, Archiwum Odlewnictwa nr 22, (2006), 552-561.
• [2] R. Władysiak: Intensyfikacja procesu odlewania kokilowego kół samochodowych - Conference proceedings "Polish Metallurgy in Years 2002-2006", Comitee of Metallurgy, (2006), 359-366.
• [3] R. Władysiak: Reengineering of permanent mould casting with lean manufacturing methods, Archives of Foundry, Vol. 7, issue 3, (2007), 205-212.
• [4] R. Władysiak: Water mist effect on heat transfer coefficient in cooling of casting die, Archives of Foundry, Vol. 8, issue 3, (2008), 227-236.
• [5] S. Wiśniewski, T. S. Wiśniewski: Wymiana ciepła, WNT (2000).