Keramikkärnor

Keramikkärnor are essentially ceramic cores used in industrial casting processes. They are crucial for creating intricate internal cavities or hollow spaces within metal castings. The process typically involves creating a mold of the desired internal shape using a ceramic material, which is then fired to achieve high strength and thermal stability. This ceramic core is then placed within the outer mold of the metal casting. When the molten metal is poured, it surrounds the ceramic core. After the metal has cooled and solidified, the ceramic core is removed, leaving behind the desired hollow space.

The use of keramikkärnor allows for the production of complex geometries that would be impossible or prohibitively expensive to achieve through other manufacturing methods. This is particularly important in industries like aerospace, automotive, and turbine manufacturing, where lightweight and high-performance components with internal cooling channels or intricate passageways are required. The ceramic material chosen for the core needs to withstand the high temperatures of the molten metal without degrading or reacting with it. Common ceramic materials used include silica, alumina, and zirconia, selected based on the specific casting alloy and process requirements. The precision and integrity of the keramikkärna directly impact the quality and accuracy of the final casting.