Five melting methods for niobium titanium superconducting alloy

(1) True blank electric arc furnace melting casting method with powder as raw material -- Niobium and titanium powder are used as raw material, mixed in appropriate proportion, moulded into electrodes, and after high temperature curing and welding, niobium titanium alloy ingot is produced by true blank electric arc furnace melting casting twice or more.

(2) True blank consumable arc furnace casting method of making electrodes with strips or rods -- niobium and titanium raw materials are respectively smelted and processed to make strips or bars. After they are made into electrodes, niobium titanium alloy ingots are fused and cast twice or more in vacuum consumable arc furnace.

(3) The joint melting casting method of vacuum electron beam furnace and vacuum consumable arc furnace with electrodes combined with strips or rods -- the same as the above method, niobium and titanium are respectively made into strips or rods, and electrodes are prepared. Niobium titanium alloy ingots are obtained by joint melting of vacuum electron beam furnace and true blank consumable arc furnace.

(4) Vacuum electron-beam furnace melting casting method of electrodes prepared by strips or rods -- niobium and titanium are respectively made into strips or rods, which are prepared as electrodes and fused cast twice or more in vacuum electron-beam furnace to produce niobium titanium alloy ingot.

(5) with high quality sponge titanium and niobium rods prepared electrode for the purification of electron beam is blank electricity arc furnace with true shell furnace smelting method, by the high quality sponge titanium compressed into rods, with the vacuum electron beam furnace melting mixture electrode, purification of niobium rods in true blank electricity arc furnace and shell furnace inside two kinds of furnace type, joint into niobium titanium alloy ingot casting.