Preparation method of superalloy electrode rod for plasma rotating electrode
A high-temperature alloy and rotating electrode technology, which is applied in the field of preparation of high-temperature alloy electrode rods for ion rotating electrodes, can solve the problems of high element content, unsatisfactory compactness and purity, difficult control of internal shrinkage cavities and inclusions, etc., to achieve Low preparation cost, good batch stability, no effect of concentrated shrinkage cavity
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Embodiment approach 1
[0017] To prepare a high-temperature alloy electrode rod with a brand name of GH3536 and a diameter of Φ80mm for a plasma rotating electrode on a vacuum induction melting continuous casting furnace with a furnace capacity of 2 tons, including the following steps:
[0018] Step 1, batching, according to the composition range of the GH3536 alloy specified in the standard HB 5497-1992 (as shown in Table 1), respectively add 0.1% C, 22% Cr, 1.5% Co, 0.6% W, 9% Mo, 18% Fe, 0.01% B, 48.8% Ni.
[0019] Table 1 Chemical composition of GH3536 alloy (wt%)
[0020]
[0021] Step 2, feeding, Ni, Cr, Co, W, Mo are inert raw materials, put them into the crucible of the vacuum induction melting furnace, B and C are active raw materials, put them into the hopper and add them later.
[0022] Step 3, refining and alloying, keeping the vacuum at 5Pa, after the inert raw materials Ni, Cr, Co, W and Mo in the crucible of the vacuum induction melting furnace are completely melted, add 20kg of C...
Embodiment approach 2
[0027] To prepare a high-temperature alloy electrode rod with a brand name of FGH4096 and a diameter of Φ50mm for a plasma rotating electrode on a vacuum induction melting continuous casting furnace with a furnace capacity of 1 ton, including the following steps:
[0028] Step 1, batching, according to the composition range of FGH4096 alloy stipulated in the standard GB / T 14992 (as shown in Table 2), respectively add 0.04% C, 16% Cr, 13% Co, 4% W, 4% Mo, 2.3% Al, 0.8% Nb, 3.8% Ti, 0.01% B, 0.04% Zr, 0.01% Ce, 56% Ni.
[0029] Table 2 Chemical composition of FGH4096 alloy (wt%)
[0030] C Cr co W Mo Al 0.02~0.05 15.0~16.5 12.5~13.5 3.8~4.2 3.8~4.2 2.0~2.4 Nb Ti B Zr Ce Ni 0.6~1.0 3.5~3.9 0.006~0.015 0.025~0.05 0.005~0.01 Remain
[0031] Step 2, feeding, put the inert raw materials Ni, Cr, Co, W, Mo, Nb into the crucible of the vacuum induction melting furnace, put the active raw materials B, C, Al, Ti, Zr and Ce into the hoppe...
Embodiment approach 3
[0037] To prepare a high-temperature alloy electrode rod with a brand name of K4169 and a diameter of Φ80mm for a plasma rotating electrode on a vacuum induction melting continuous casting furnace with a furnace capacity of 2 tons, including the following steps:
[0038]Step 1, batching, according to the composition range of the K4169 alloy stipulated in the standard Q / 5B453-1995 (as shown in Table 3), add 0.05% C, 19% Cr, 3% Mo, 0.5% Al, 1% Ti, 5% Nb, 0.006% B, 0.03% Zr, 52% Ni, 19.41% Fe.
[0039] Table 3 Chemical composition of K4169 alloy (wt%)
[0040] C Cr Ni Mo Al 0.02~0.08 17.0~21.0 50.0~55.0 2.8~3.3 0.3~0.7 Ti Nb+Ta B Zr Fe 0.65~1.15 4.4~5.4 ≤0.006 ≤0.05 Remain
[0041] Step 2, feeding, put the inert raw materials Ni, Cr, Fe, Mo and Nb into the crucible of the vacuum induction melting furnace, and the active raw materials B, C, Al, Ti and Zr are put into the hopper and added later.
[0042] Step 3, refining and alloying...
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