Vanadium nitride is an important vanadium alloy additive in metallurgical industry,V-N microalloying technology can increase the steel intensity significantly and reduce the cost of steel.A patent application for the production method of vanadium nitride had been filed by Panzhihua Iron and Steel Corporation in December,2001 and it initiated the industrialized process of vanadium nitride in China.VT cored wire(a kind of cored wire in which vanadium nitride powder and ferrotitanium powder are mixed in certai...