Fabrication technology upgrade of TiC-based high manganese steel bonded cemented carbide

Modern advanced degreasing and sintering furnace was applied to the industrial production of TiC-based high manganese steel bonded cemented carbide. The full binder removal, the effective control plus collection of Mn volatilized at high temperature, and the improvement of sintering ability during sintering process were realized by the technical innovation. The results show that, compared with the traditional equipment and technology, the density of the TM60 and TM52 alloys prepared by the upgrade technology is increased by 1.7%~1.8%, and both the TiC particle growing plus coarsening and the impurities caused by degreasing in the matrix are effectively reduced. In the case that the hardness is basically unchanged, the bending strength of the TM60 and TM52 alloys prepared by the upgrade technology is raised by more than 30%, and the impact toughness can be multiplied. The upgrade technology is beneficial to expand the application of TiC-based high manganese steel bonded cemented carbides and gives full play to the excellent impact abrasive wear resistance of the steel bonded cemented carbide.