Patent ID: 8523976

Claim:
A process for producing a cemented hard material mixture which comprises mixing a) at least one prealloyed powder selected from the group consisting of iron/nickel, iron/cobalt, iron/nickel/cobalt and nickel/cobalt; b) at least one element powder selected from the group consisting of iron, nickel and cobalt or a prealloyed powder selected from the group consisting of iron/nickel, iron/cobalt, iron/nickel/cobalt and nickel/cobalt which is different from component a); c) hard material powder, wherein the overall composition of the components a) and b) together contains not more than 90% by weight of cobalt and not more than 70% by weight of nickel and the iron content satisfies the inequality Fe ≥ 100 ⁢ % - % ⁢ ⁢ Co · 90 ⁢ % ( % ⁢ ⁢ Co + % ⁢ ⁢ Ni ) - % ⁢ ⁢ Ni · 70 ⁢ % ( % ⁢ ⁢ Co + % ⁢ ⁢ Ni ) .