Oxide-based iron-based composite intermediate alloy and preparation method and application thereof
A technology of master alloy and iron-based alloy, which is applied in the field of oxide-based iron-based composite master alloy and its preparation, which can solve the problem of unproven addition of oxide particles, poor workpiece performance, soft and wear-resistant steel matrix, etc. problems, to achieve the effect of improving performance, improving performance, and refining the organization
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Embodiment 1
[0043] Embodiment 1 - high manganese steel
[0044] The oxide components and their mass contents added to high manganese steel are shown in Table 1.
[0045] Table 1 The types and contents of oxides added to high manganese steel
[0046] Corundum powder Bauxite Silica powder boron oxide Aluminum oxide Titanium oxide 25％ 25％ 5.0％ 10.0％ 15％ 20.0％
[0047] Preparation:
[0048] After weighing the oxides in Table 1 according to their respective mass contents, put them into a ball mill and grind them to a particle size of 0.1 μm to 2 μm, and then take 1 kg of the oxides in Table 1 after grinding and 3 kg of iron powder with a particle size of 30 μm to 1 mm into V Mix thoroughly in a mixer. Put the mixed powder into an intermediate frequency induction furnace, and raise the temperature to 1520°C at a constant speed within 100 minutes, and the heating rate is 12°C / min to 16°C / min, so that the powder becomes a sintered body, and after taking it out,...
Embodiment 2—45
[0060] The oxide components and their mass contents added to 45 steel are shown in Table 5.
[0061] Table 5 Types and contents of oxides added to 45 steel
[0062] Corundum powder Bauxite Silica powder boron oxide Aluminum oxide Yttrium oxide Titanium oxide 30.0％ 15.0％ 10.0％ 12.0％ 25.0％ 0.5％ 7.5％
[0063] Preparation:
[0064] After weighing the oxides in Table 5 according to their respective mass contents, put them into the grinding equipment and grind them to a particle size of 0.5 μm to 6 μm, and then take 1 kg of the oxides in Table 3 after grinding and put them together with 7 kg of 20 steel with a particle size of 100 μm to 3 mm. Mix thoroughly in a mixing device. Put the mixed powder into the medium-frequency induction furnace, and raise the temperature to 1520°C at a uniform speed within 120 minutes, and the heating rate is 10°C / min-14°C / min, so that the powder becomes a sintered body, and after taking it out, use a blower to forc...
Embodiment 3
[0074] Embodiment 3—high carbon Cr2Al steel
[0075] The oxide components and their mass contents added to the high-carbon low-alloy steel are shown in Table 9.
[0076] Table 9 Types and contents of oxides added to high carbon Cr2Al steel
[0077] Zirconia boron oxide 89.0％ 11.0％
[0078] Preparation:
[0079]After weighing the oxides in Table 9 according to their respective mass contents, put them into the grinding equipment and grind them to a particle size of 0.2 μm to 10 μm, and then take 1.0 kg of the oxides in Table 9 after grinding and 5 kg of T10 steel with a particle size of 500 μm to 5 mm Place in a mixing device and mix well. Put the mixed powder into a high-temperature furnace, raise the temperature to 1480°C at a constant speed within 180 minutes, and the heating rate is 8°C / min to 12°C / min, so that the powder becomes a sintered body, and after taking it out, it is cooled with water, and the product based on Oxides of iron-based composite...
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