Introduction to the use of special alloys and rare earth
Special alloys, rare earth metals or fluoride and silicides in steel can play the effect of essence, desulphurization, neutralization and low melting point harmful impurities, and can improve the processing function of steel. Rare earth silicon iron alloy and rare earth silicon magnesium alloy produce rare earth nodular cast iron as spheroidizing agent, because this kind of spheroidal graphite cast iron is unique. It is widely used in automobile, tractors, diesel engines and other non-ferrous metals such as magnesium, aluminum, copper, zinc, nickel and other non-ferrous alloys, which can improve the physical and chemical function of the alloy and improve the function of the alloy room temperature and high temperature machinery.
The military rare earth has the name of "gold" in industry. Because of its excellent physical properties such as photoelectricity and magnetism, it can successfully use different kinds of new materials with the other data groups. The most obvious function is to make great progress in the quality and function of other products. For example, great progress has been made in the tactical functions of steel, aluminum alloy, magnesium alloy and titanium alloy for tanks, aircraft and missiles. Moreover, rare earth is also a variety of high-tech lubricants such as electronics, laser, nuclear industry, superconductivity and so on. Once used in military affairs, rare earth technology will surely bring about the leap of military technology. In a certain sense, it is due to the superman of the rare earth science and technology in the field of rare earth science and technology that the US forces are manipulating the local war several times after the fight and unscrupulously revealing the slaughter of the enemy.
The molecular sieve catalyst made of rare earth with rare earth has high activity, good selectivity and strong resistance to heavy metal poisoning. Therefore, it replaced the aluminum silicate catalyst in the process of oil catalytic cracking. In the process of producing ammonia, a few rare earth nitrate is used as a catalytic agent, and its disposal gas is 1 larger than that of the nickel aluminum catalyst. . 5 times, in the process of forming CIS and isoamyl rubber, the rare earth naphthenic acid rare-earth - three isobutyl aluminum catalyst is selected, the obtained products have excellent function, less equipment, stable work and short post treatment process. Compound rare earth oxide can be used as a catalyst for purifying exhaust gas of internal combustion engine and cerium naphthenate is also available. As a paint drier, etc.
Rare earth oxide of glass ceramics or processed rare earth concentrate can be used as polishing powder widely in polishing of optical glass, glasses, picture tube, oscilloscope tube, flat glass, plastic and metal tableware. In the process of melting glass, two cerium oxide can be used to oxidize iron very strongly and decrease the iron in glass. The content, to reach the intention of removing the green in the glass, increases the use of rare earth oxides to produce different use of optical glass and special glass, which includes infrared, ultraviolet absorption glass, acid and heat-resistant glass, and X- ray proof glass, and the addition of rare earth in ceramic glaze and enamel can reduce the glaze. Fragmentation, and can make products appear different color and luster, is widely used in ceramic industry.