DEVELOPING AND TESTING A NEW TYPE-8K MOULD FOR TOOL-STEEL INGOT CASTING

摘要

The traditional production of machinery and tools at ZDAS, 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 and solidification. The development and use of the new mould type 8K9.2 for tool-steel ingot casting has reduced the share of forgings with unacceptable quality. A substantial improvement has been achieved, especially in terms of the occurrence of defects, such as cavities and cracks in the ingot body.