Razvoj in preizkus nove kokile vrste 8k za ulivanje ingotov iz orodnega jekla

摘要

The traditional production of machinery and tools at ŽĎAS, a. s., and the increasing requirements placed on the final product,particularly those related to the internal quality of forgings, requires new technological measures for the ingot’s casting andsolidification. The development and use of the new mould type 8K9.2 for tool-steel ingot casting has reduced the share offorgings with unacceptable quality. A substantial improvement has been achieved, especially in terms of the occurrence ofdefects, such as cavities and cracks in the ingot body.