Water mist effect on cooling process of casting die and microstructure of AlSi9 alloy
Journal Title: Archiwum Odlewnictwa - Year 2010, Vol 10, Issue 2
Abstract
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 C 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 C 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.
Authors and Affiliations
R. Władysiak
Keywords
Related Articles
- EP ID EP72269
- DOI -
- Views 66
- Downloads 0
Microstructure of high-pressure die-casting AM50 magnesium alloy
Microstructure analyses of high-pressure die-casting AM50 magnesium alloy are presented. Investigated pressure casting was produced on a cold chamber die-casting machine with locking force at 1100 tones in “FINNVEDEN Met...
Thermal analysis and microstructure of master alloys used for modification of silumins
The study presents the technological backgrounds of the process of melting and casting Al-Co, Al-Ni, and Al-Ti master alloys, used as refiners of the microstructure of cast silumins. Basing on the analysis of phase equil...
Effect of thickness of refractory coating on the Lost Foam Process
The analysis of the influence of the thickness of refractory coating on the production process of casts in the Lost Foam process was introduced in the work. It was conducted in the peculiarity the analysis simulating inv...
Microhardness and tribological wear of the steels remelted with an electric arc
This study presents results of a research on the surface strengthening of the C15, C45 and C90U steels by application of concentrated heat stream with the GTAW methodology. Utilizing the GTAW methodology remelting of the...
The estimation of ability to reclame of moduling sands with biopolymer binders
Applied up till now organic binding materials, on the basis of synthetic resins are characterised by good technological properties, but cause high emission of harmful substances. That’s why contemporary scientific resear...