Investigation on heat-transfer-coefficient between aluminum alloy and organic/inorganic sand mold based on inverse method
| Autor: | Hong-wei Huo, Qi-chi Le, Xu Zhao, Chiri Wang, Tong Wang, Wei-sen Shi, Jing-ying Sun |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Alloy chemistry.chemical_element 02 engineering and technology Heat transfer coefficient engineering.material medicine.disease_cause lcsh:Technology 01 natural sciences Cylinder (engine) law.invention law Aluminium lcsh:Manufactures Mold 0103 physical sciences Materials Chemistry medicine Composite material Inverse method 010302 applied physics lcsh:T Metals and Alloys 021001 nanoscience & nanotechnology Casting Phase line chemistry engineering 0210 nano-technology lcsh:TS1-2301 heat-transfer-coefficient aluminum alloy organic inorganic inverse method |
| Zdroj: | China Foundry, Vol 16, Iss 5, Pp 336-341 (2019) |
| ISSN: | 2365-9459 1672-6421 |
| DOI: | 10.1007/s41230-019-9065-y |
| Popis: | A kind of cylinder sand mold was designed to investigate the heat-transfer-coefficients (HTCs) between aluminum alloy and organic/inorganic binder bonded sand mold during the solidification processes. Temperature during the solidification process was recorded and input into the simulation software. The inverse model of MAGMA was used to calculate the HTC based on the actual temperature. Results show that the temperature of the inorganic sand mold increased faster than the organic sand mold; while the temperature of the casting part with the inorganic sand mold decreased faster. The optimal HTCs between Al and the organic/inorganic sand mold are confirmed to be 300 to 700 and 1000 to 1800 W·m-2·K-1, respectively, along with the change of solid-liquid phase line. The simulated temperature curves show the same trend as the measured ones. The maximum deviation between the two temperature curves are 17.32 °C and 18.77 °C for castings by inorganic and organic sand molds. |
| Databáze: | OpenAIRE |
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