Öntése

Öntése is a Hungarian noun derived from the verb önteni, meaning to pour or to cast. In everyday and technical usage, öntése refers to the act of pouring a liquid, and in industrial contexts it is closely associated with the casting of molten metal into a mold. The term is related to öntés, the broader process of casting, while the finished product is called an öntvény (a cast part or product). The form with -sé is commonly used to denote the action or process itself.

In manufacturing and metalworking, öntése describes the pouring step within the broader casting process. The typical sequence includes melting the material, preparing and preheating the mold, pouring the molten material into the mold, allowing solidification, and post-processing such as shake-out, cleaning, and finishing. Öntése can occur in various casting methods, with the choice of method influencing mold material, cooling rate, and final part properties.

Common casting methods associated with öntése include sand casting (homoköntés), where a sand mold is used, and other methods such as investment casting or centrifugal casting, each with specific advantages for detail, surface finish, and production volume. The suitability of a method depends on material, geometry, tolerances, and production cost.

Quality considerations for öntése focus on defects such as porosity, cold shuts, misruns, and inclusions, which can arise from improper pouring temperature, mold design, or handling. Proper process control and inspection are essential to achieve reliable öntvény components. See also öntés and öntvény.