Ultralow-oxygen dual-phase steel 2507 powder preparation method
A technology for powder preparation and dual-phase steel is applied in the field of ultra-low oxygen dual-phase steel 2507 powder preparation. Effects of uneven texture, correctness and uniformity
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Embodiment 1
[0018] A method for preparing ultra-low oxygen dual-phase steel 2507 powder, comprising the following steps:
[0019] Step 1, smelting of dual-phase steel 2507 master alloy rod; the alloy composition is carried out according to GB / T20878-2007;
[0020] Step 2, machining the dual-phase steel 2507 alloy master alloy billet, the diameter of the electrode rod after processing is 90mm, the length is 1000mm, and the deviation of the straightness of the electrode rod is controlled at 0.1mm / m;
[0021] Step 3, place the dual-phase steel 2507 alloy electrode rod in a closed reaction chamber containing helium and rotate it at high speed, and use a plasma gun to heat the end of the electrode rod to melt it;
[0022] Step 4, the molten metal of the electrode rod in step 3 is atomized and flies out under the action of centrifugal force to form fine liquid droplets, which are rapidly cooled in He gas to form spherical particles, which fall into the collection container at the bottom of the ...
Embodiment 2
[0025] A method for preparing ultra-low oxygen dual-phase steel 2507 powder, comprising the following steps:
[0026] Step 1, smelting of dual-phase steel 2507 master alloy rod; the alloy composition is carried out according to GB / T20878-2007;
[0027] Step 2, machining the dual-phase steel 2507 alloy master alloy billet, the diameter of the electrode rod after processing is 45mm, the length is 550mm, and the straightness deviation of the electrode rod is controlled at 0.05mm / m;
[0028] Step 3, place the dual-phase steel 2507 alloy electrode rod in a closed reaction chamber containing inert gas containing argon and rotate it at high speed, and use a plasma gun to heat the end of the electrode rod to melt it;
[0029] Step 4, the molten metal of the electrode rod in step 3 is atomized and flies out under the action of centrifugal force to form fine droplets. The droplets are rapidly cooled in He+Ar gas to form spherical particles and fall into the collection container at the b...
Embodiment 3
[0032] A method for preparing ultra-low oxygen dual-phase steel 2507 powder, comprising the following steps:
[0033] Step 1, smelting of dual-phase steel 2507 master alloy rod; the alloy composition is carried out according to GB / T20878-2007;
[0034] Step 2, machining the dual-phase steel 2507 alloy master alloy billet, the diameter of the electrode rod after processing is 10mm, the length is 100mm, and the straightness deviation of the electrode rod is controlled at 0.01mm / m;
[0035] Step 3, place the dual-phase steel 2507 alloy electrode rod in a closed reaction chamber with inert gas argon and rotate it at high speed, and use a plasma gun to heat the end of the electrode rod to melt it;
[0036] Step 4, the molten metal of the electrode rod in step 3 is atomized and flies out under the action of centrifugal force to form fine droplets, which are quickly cooled in Ar gas to form spherical particles, which fall into the collection container at the bottom of the atomization...
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