The effect of adding alum on thread steel
The melting point of vanadium is very high, often with niobium, tantalum, tungsten, molybdenum, called refractory metal. Ductile, hard, without magnetism. Resistant to hydrochloric acid and sulfuric acid ability, and resistance to salt water corrosion performance than most stainless steel.
Vanadium can remarkably improve the weldability of ordinary low carbon low alloy steel. Vanadium is an excellent deoxidizer for steel. 0.5% of the vanadium in the steel can refine the grain and improve the strength and toughness. The carbides formed by vanadium and carbon can improve hydrogen corrosion resistance under high temperature and high pressure.
If the steel is a tiger, so is the wing steel containing vanadium vanadium, like the tiger wings. Only a few percent of vanadium in the steel, can make the elastic strength of steel, increase abrasion resistance and spalling resistance excellent, high temperature resistance and resistance in the car, no wonder the bitterly cold, aviation, railway, electronics, defense industry and other departments, can be seen everywhere traces of vanadium. In addition, vanadium oxide has become one of the best catalysts in the chemical industry, called vanadium, the "chemical bread". Mainly used in the manufacture of high speed cutting steel and other alloy steels and catalysts. The vanadium doped vanadium steel can be made into steel. A more compact structure than ordinary steel vanadium steel, toughness, elasticity and higher mechanical strength. Preparation of vanadium steel penetrators, can penetrate 40 cm thick steel plate. However, in the iron and steel industry, is not the pure metal vanadium steel to make vanadium steel, the vanadium ore smelting vanadium steel.
Vanadium has many excellent physical and chemical properties, so vanadium has a wide range of uses. Most of the initial vanadium was applied to steel. By refining the microstructure and grain of steel, the grain coarsening temperature was increased, thus increasing the strength, toughness and wear resistance of steel. Later, people gradually discovered the outstanding improvement of vanadium in titanium alloys, and applied it to the aerospace field, which made the aerospace industry made a breakthrough progress. With the rapid development of science and technology, the demand for new materials is increasing. Vanadium is used more and more widely in the field of non iron and steel. Its range includes aerospace, chemistry, batteries, pigments, glass, optics, medicine and many other fields.
