| 摘要 |
The invention relates to a method of producing a steel moulding using a sinter powder with a base of iron containing at least one non-ferrous metal selected from a group comprising Mn, Cr, Si, Mo, Co, V, B, Be, Ni and Al, the rest being Fe and unavoidable impurities resulting from the manufacturing process, comprising the steps of preparing the sinter powder, compacting the sinter powder to produce a green compact in a mould, sintering the green compact under a reducing atmosphere and then cooling and hardening, characterised in that the total proportion of non-ferrous metals in the sinter powder is selected from a range with a lower limit of 1% by weight and an upper limit of 60% by weight, and the sinter powder is sintered to an at least approximately completely austenitic structure, and hardening takes place by subjecting the steel moulding to mechanical load so that the austenitic structure is transformed at least partially to a martensitic structure.
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