A kind of preparation method of high-strength, high-hardness water-atomized pre-alloyed steel powder
A technology of alloy steel powder and high hardness, which is applied in the field of preparation of high-strength, high-hardness water atomized pre-alloyed steel powder, which can solve the problems such as the degradation of matrix material performance, achieve performance improvement, overcome high hydrogen loss, and improve application performance Good results
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Embodiment 1
[0057] A method for preparing high-strength, high-hardness water-atomized pre-alloyed steel powder, including batching, smelting process, atomization, reduction, and post-treatment.
[0058] 1. Ingredients
[0059] The composition content meets the following requirements: Mn<0.50%, P<0.04%, Si<0.2%, S<0.04%, Cr+Ni+Cu+Mo≤0.20% of high-quality ordinary carbon steel scrap and pig iron as raw materials, spare.
[0060] The weight ratio of the high-quality common carbon steel scrap: pig iron is 1:2.
[0061] 2. Smelting process
[0062] The smelting process includes EBT electric furnace smelting, electric furnace tapping, and LF refining furnace smelting.
[0063] The EBT electric furnace is smelted, and the smelting temperature is 1550°C.
[0064] When the EBT electric furnace is smelted and the electric furnace is tapping, the carbon content at the control end point is ≥0.15%.
[0065] The EBT electric furnace smelting, when the composition of the electric furnace molten stee...
Embodiment 2
[0094] A method for preparing high-strength, high-hardness water-atomized pre-alloyed steel powder, including batching, smelting process, atomization, reduction, and post-treatment.
[0095] 1. Ingredients
[0096] The composition content meets the following requirements: Mn<0.50%, P<0.04%, Si<0.2%, S<0.04%, Cr+Ni+Cu+Mo≤0.20% of high-quality ordinary carbon steel scrap and pig iron as raw materials, spare.
[0097] The weight ratio of high-quality common carbon steel scrap: pig iron is 1:1.
[0098] 2. Smelting process
[0099] The smelting process includes EBT electric furnace smelting, electric furnace tapping, and LF refining furnace smelting.
[0100] The EBT electric furnace is smelted, and the smelting temperature is 1550°C.
[0101] When the EBT electric furnace is smelted and the electric furnace is tapping, the carbon content at the control end point is ≥0.15%.
[0102] The EBT electric furnace smelting, when the composition of the electric furnace molten steel me...
Embodiment 3
[0131] A method for preparing high-strength, high-hardness water-atomized pre-alloyed steel powder, including batching, smelting process, atomization, reduction, and post-treatment.
[0132] 1. Ingredients
[0133] The composition content meets the following requirements: Mn<0.50%, P<0.04%, Si<0.2%, S<0.04%, Cr+Ni+Cu+Mo≤0.20% of high-quality ordinary carbon steel scrap and pig iron as raw materials, spare.
[0134] The weight ratio of the high-quality common carbon steel scrap: pig iron is 1:2.
[0135] 2. Smelting process
[0136] The smelting process includes EBT electric furnace smelting, electric furnace tapping, and LF refining furnace smelting.
[0137] The EBT electric furnace is smelted, and the smelting temperature is 1550°C.
[0138] When the EBT electric furnace is smelted and the electric furnace is tapping, the carbon content at the control end point is ≥0.15%.
[0139] The EBT electric furnace smelting, when the composition of the electric furnace molten stee...
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