Production process of vanadium-nitrogen alloy

Abstract

The invention discloses a method for making vanadium-nitrogen alloy. In the method, vanadium pentexide is ground and added with iron powders, carbon powders and binding agent and evenly mixed, making a ball; the ball is sent in a horizontal type push plate kiln which is filled with nitrogen gas, and the slightly positive pressure in the kiln is always kept; the ball undergoes carbonization and nitridation reactions in the kiln, and the temperature of the carbonization reaction is between 1350 and 1500 DEG C and the reaction time is 2 to 3.5 hours, and the temperature of the nitridation reaction is between 1000 and 1150 DEG C and the reaction time is 0.5 to 1.5 hours; the ball is gradually cooled, and the vanadium-nitrogen alloy is obtained. Due to the adoption of the technical proposal in which the vacuum equipment is unnecessary, the method lowers equipment cost and simplifies the operation flow; due to the continuous production, the method obviously improves the production efficiency; moreover, according to tests, the nitrogen content of the vanadium-nitrogen alloy made by the method is no more than 16 percent, so that the method is more suitable for steel-making requirements in the iron and steel industry.

Description

A kind of production method of vanadium nitrogen alloy technical field The invention belongs to metal additives, in particular to a production method of a vanadium nitrogen alloy. Background technique Vanadium is an essential raw material for high-strength, low-alloy steels, micro-alloyed steels, and other special steels. Vanadium can improve the strength, toughness, wear resistance and impact load resistance of steel. Over the years, the iron and steel industry has mostly put FeV50 into steelmaking. Its production cost is high and impurities are large, and the quality of steel is difficult to meet higher requirements. The quality of the steel reduces the cost of the steel, and the nitrogen element in the vanadium-nitrogen alloy is a favorable element in steelmaking. It can interact with the steel. By increasing the nitrogen content in the steel, the strengthening effect of the vanadium is improved. At the same time, vanadium-nitrogen alloy is rich in nitrogen, which is ...

AI Technical Summary

Problems solved by technology

The disadvantages of the above methods are: 1. Vacuum system is required, the equipment investment is high, and the operation is cumbersome

2. Batch production of one furnace by one furnace, long production cycle, low labor productivity and high production cost