Pre-molten slag for smelting electroslag remelting continuous directional solidification high-temperature alloy ingot and application thereof
A technology of directional solidification and electroslag remelting, applied in the field of superalloy smelting, can solve the problems of inability to meet the smelting needs of continuous directional solidification by electroslag remelting, uneven axial composition of ingots, and changes in element content, etc. To ensure the uniformity of chemical composition, improve the unevenness of composition, and improve the effect of surface quality
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[0034] Example 1
[0035] Electroslag remelting of GH4096 alloy and continuous directional solidification ingot smelting
[0036] This embodiment uses the pre-melted slag provided by the present invention to carry out the electroslag remelting and continuous directional solidification smelting process of the superalloy GH4096 containing titanium and zirconium to obtain the GH4096 alloy ingot. The smelting process includes the following steps:
[0037] S1. The raw material components of the pre-melted slag are baked in a slag baking furnace at 650°C for 8 hours, where the pre-melted slag contains the following components by weight:
[0038]
[0039] S2. The slagging furnace is used to fully melt the baked slag. The amount of slag in the slagging furnace is 25kg, the slagging voltage is 46V, and the slagging current is 3750A;
[0040] S3. The molten slag after slagging is placed in the electroslag remelting continuous directional solidification device disclosed in the application publicat...
Example Embodiment
[0043] Example 2
[0044] According to the electroslag remelting continuous directional solidification smelting process provided in Example 1, GH4096 alloy ingots are obtained, except that the pre-melted slag in step S1 contains the following components by weight percentage:
[0045]
Example Embodiment
[0046] Example 3
[0047] According to the electroslag remelting continuous directional solidification smelting process provided in Example 1, GH4096 alloy ingots are obtained, except that the pre-melted slag in step S1 contains the following components by weight percentage:
[0048]
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