Mixed steel powder containing mn for powder metallurgy and preparation method thereof
A technology for powder metallurgy and alloy steel powder is applied in the field of Mn-containing mixed steel powder for powder metallurgy and its preparation. Good pressing performance, enhance strengthening effect, good pressing performance
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Embodiment 1
[0048] The composite manganese source powder was used to prepare Mn-containing mixed powder, and the composition was Fe-XMn-0.6C (wherein X was 1, 2, 2.5, 3).
[0049] Composition of Mn-containing mixed powder prepared from composite manganese source powder: 60wt.% composition is Fe-X 1 Mn-0.6C (where X 1 1, 2, 2.5, 3) simple mechanical mixing powder, composed of water atomized pure iron powder, FeMn alloy powder, graphite powder. Among them, the iron content of water atomized pure iron powder is >99.6wt%, the oxygen content is ≤0.15wt%, and the average particle size is 100-150 μm; the FeMn alloy powder has a manganese content of 50wt%, an oxygen content of ≤1.5wt%, and an average particle size of 10μm; graphite, the average particle size is 20μm. 40wt.% composition is Fe-X 2 Mn-0.6C (where X 2 1, 2, 2.5, 3) pre-alloyed steel powder mixed powder, composed of pre-alloyed steel powder (composition is Fe-X 2 Mn-0.02C), graphite powder. Among them, the average particle size ...
Embodiment 2
[0057] The Mn-containing mixed powder prepared by using composite manganese source powder is Fe-XMn-0.6C (wherein X is 1, 2, 2.5, 3).
[0058] Composition of Mn-containing mixed powder prepared from composite manganese source powder: 30% of the composition is Fe-X 1 Mn-0.6C (where X in Table 4.1 1 1, 2, 2.5, 3) simple mechanical mixing powder, composed of water atomized pure iron powder, FeMn alloy powder, graphite powder. Among them, the iron content of water atomized pure iron powder is >99.6wt%, the oxygen content is ≤0.15wt%, and the average particle size is 100-150 μm; the FeMn alloy powder has a manganese content of 70wt%, an oxygen content of ≤1.5wt%, and an average particle size of 10μm; graphite, the average particle size is 20μm. 70wt% composition is Fe-X 2 Mn-0.6C (where X 2 1, 2, 2.5, 3) pre-alloyed steel powder mixed powder, composed of pre-alloyed steel powder (composition is Fe-X 2 Mn-0.02C), graphite powder. Among them, the average particle size of the pr...
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