The feasibility of acquiring a thermal analysis cooling curve by wet sample cup made of green sand

Abstract

How would you……describe the overall significance of this paper?In traditional thermal analysis applied in foundry, dry sample cups made of resin-bonded sands are widely used. If the cups could be made of green sand, traditional dry sample cups could be replaced and thus reduce costs and emissions of irritating gases. The purpose of this study is to determine whether it is feasible to acquire the cooling curve with obvious characteristic points by the wet sample cups made of green sand.…describe this work to a materials science and engineering professional with no experience in your technical specialty?In this study, we proposed a new idea that the dry sample cups in traditional thermal analysis applied in foundry may be replaced by wet sample cups made of green sand. A set of molds was designed to make different wet sample cups, and a measuring system constructed to automatically acquire and record the cooling curve. By experiments on eutectic Al-Si alloys and LY12 aluminum alloys, the feasibility of acquiring the cooling curve with obvious characteristic points by the wet sample cups has been proved. …describe this work to a layperson?Thermal analysis is widely used in the foundry and the cooling curve is often acquired by dry sample cups. They have the disadvantage of high cost and pollution. So, if the dry sample cups could be replaced by the wet sample cups made of green sand, it would be very important for foundry production. In this paper, a set of molds was designed to make wet sample cups, and a measuring system constructed to acquire the cooling curve. By experiments on aluminum alloys, the feasibility of acquiring the cooling curve by the wet sample cups has been proven.The purpose of this study is to determine whether it is feasible to acquire the cooling curve with obvious characteristic points by the wet sample cups made of green sand. If it were feasible, this would replace the traditional dry sample cup and thus reduce the expenditure. Taking full consideration of the thermocouple position, and the volume and thickness of the sample cups, a set of molds is designed to make the wet sample cups with different dimensions. Also, a measuring system is constructed to automatically acquire and record the cooling curve during solidification. Using these wet sample cups with several different thicknesses and volumes, many experiments on the eutectic Al-Si alloys and LY12 aluminum alloys have been performed and the recorded cooling curves have been analyzed, respectively.

Influence of FeS2 and FeSi75 in Double-Chamber Sample Cup on Thermal Analysis Curve and Graphite Morphology of Molten Iron

“…Through comparative testing of each cup type to gage repeatability and reproducibility, it was concluded that when the cups are used for real-time control of the respective carbon equivalent, carbon, and silicon contents of ductile base iron, the "round and plain" and "square and tellurium" cups perform superiorly to the "round and tellurium" and "square and plain" cups. Shi et al [19] studied the feasibility of achieving cooling curves with obvious characteristic points using a wet sample cups made of green sand. Taking full consideration of the thermocouple position in addition to the volume and thickness of the sample cups, a set of molds was designed to make wet sample cups of differing dimensions.…”