High wear-resistant and corrosion-resistant large-depth rotary tiller material and preparation method thereof
A highly wear-resistant, rotary blade technology, applied in metal material coating process, solid-state diffusion coating, coating and other directions, can solve the problems affecting the emergence, growth, and ploughing depth of crops in the later season, and can not fully meet the requirements and reduce soil fertility. and other problems, to achieve excellent soil corrosion resistance, reduce C content, and overcome limitations.
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Embodiment 1
[0040] In this embodiment, a high wear-resistant and corrosion-resistant large-depth rotary tiller material mainly includes:
[0041] C 0.35%, Si 0.60%, Mn 1.95%, Cr 3.00%, Ni 0.10%, V 0.26%, Al 0.30%, Nb 0.01%, P 0.030%, S 0.023%, Fe balance.
[0042] The preparation steps are as follows:
[0043] (1) Smelting: Converter smelting until the mass fraction of C in the molten steel is less than 0.06%, and the mass fraction of P and S is less than 0.02%, and the steel is tapped, and ferrosilicon, ferromanganese, ferrochrome, ferronickel and ferrovanadium are added during the tapping process Carry out alloying of Si, Mn, Cr, Ni and V elements, and add aluminum block for deoxidation; blow argon throughout the refining process of LF furnace, keep white slag for 30 minutes, carry out alloying of Nb and Al before tapping, and control the composition of final molten steel , after being transferred to the degassing station, RH vacuum degassing treatment is carried out, the vacuum degree...
Embodiment 2
[0062] In this embodiment, a high wear-resistant and corrosion-resistant large-depth rotary tiller material mainly includes:
[0063] C 0.40%, Si 0.20%, Mn 2.30%, Cr 1.95%, Ni 0.18%, V 0.30%, Al 0.10%, Nb 0.03%, P 0.027%, S 0.022%, Fe balance.
[0064] The preparation steps are as follows:
[0065] (1) Smelting: Converter smelting until the mass fraction of C in the molten steel is less than 0.06%, and the mass fraction of P and S is less than 0.02%, and the steel is tapped, and ferrosilicon, ferromanganese, ferrochrome, ferronickel and ferrovanadium are added during the tapping process Carry out alloying of Si, Mn, Cr, Ni and V elements, and add aluminum block for deoxidation; blow argon throughout the refining process of LF furnace, keep white slag for 30 minutes, carry out alloying of Nb and Al before tapping, and control the composition of final molten steel , after being transferred to the degassing station, RH vacuum degassing treatment is carried out, the vacuum degree...
Embodiment 3
[0082] In this embodiment, a high wear-resistant and corrosion-resistant large-depth rotary tiller material mainly includes:
[0083] C 0.45%, Si 0.30%, Mn 1.50%, Cr 1.50%, Ni 0.30%, V 0.10%, Al 0.22%, Nb 0.05%, P 0.028%, S 0.025%, Fe balance.
[0084] The preparation steps are as follows:
[0085] (1) Smelting: Converter smelting until the mass fraction of C in the molten steel is less than 0.06%, and the mass fraction of P and S is less than 0.02%, and the steel is tapped, and ferrosilicon, ferromanganese, ferrochrome, ferronickel and ferrovanadium are added during the tapping process Carry out alloying of Si, Mn, Cr, Ni and V elements, and add aluminum blocks for deoxidation; blow argon throughout the refining process of LF furnace, keep white slag for 20 minutes, carry out Nb and Al alloying before tapping, and control the final composition of molten steel , after being transferred to the degassing station, RH vacuum degassing treatment is carried out, the vacuum degree i...
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