| 摘要 |
The invention relates to a hard metal made from WC for tools for the mechanical working of stone, concrete and asphalt in particular, with 5 to 25 wt. % of binder made from Co or Co and Ni and with a coercivity field strength of up to 30.0 kA/m or whereby the binder is made from at least 5 vol. % of nanoparticles with ordered phases of W, Co and/or C. The hard metal has a magnetic saturation ( sigma or 4 pi sigma , each in units of microtesla cubic meters per kilogram) depending on the co-proportion (X) in wt. % of the hard metal in a range of sigma = 0.11X to sigma = 0.137X or 4 pi sigma = 0.44 pi X to 4 pi sigma = 0.548 pi X. |
