The casting methods of niobium-titanium superconducting alloy

(1) with powder as raw material of true blank arc furnace melting casting method - using niobium and titanium powder as raw material, mixed in appropriate proportion, molded into electrode, after high temperature curing, welding after true blank arc furnace melting casting twice or more than two times, niobium titanium alloy ingot.

(2) true blank consumable arc furnace melting casting method with strip or rod to prepare electrode -- niobium and titanium raw materials are respectively melted and processed to produce strip or rod. After they are prepared into electrode, niobium titanium alloy ingot is fused and cast twice or more in vacuum consumable arc furnace.

(3) the joint casting method of vacuum electron beam furnace and vacuum consumable arc furnace with strip or rod combined electrode -- same as the above method, niobium and titanium are made into strip or rod respectively, and the electrode is prepared, and niobium titanium alloy ingot is obtained by joint casting of vacuum electron beam furnace and true blank consumable arc furnace.

(4) vacuum electron beam furnace melting casting method with strip or rod preparation electrode - to niobium, titanium strip or rod made respectively, they are prepared as electrode, in the vacuum electron beam furnace melting casting twice or more than two times, 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.