Influence of waxes remelting used in investment casting on their thermal properties and linear shrinkage

Metalurgija

关键词: investment casting;    thermal properties;    waxes;    linear shrinkage;    DSC;   

DOI  :  

来源: DOAJ

【 摘 要 】

This paper presents the results of thermal properties and linear shrinkage of jewelry waxes utilized in investment casting. Three types of jewelry waxes were cyclically processed (by heating, holding in a molten state and cooling)in the temperature range between 25 and 90 °C for about 7 hours. The samples were tested after 5th, 10th and 15thcycle. The remelting was designed to simulate the process of waxes reusability for production of patterns. Changes in thermal properties of waxes were determined using differential scanning calorimetry (DSC) and linear shrinkage values were specified. The conducted examinations allowed to establish the way of multiple utilization of waxes in producing precise models.

【 授权许可】

Unknown