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Pink and what is the difference between rare earth polishing powder
More than 10 kinds of metal oxides, such as aluminum, zinc, chromium, manganese, titanium, zirconium, silicon, iron and rare earth, have been used in industry.In the polishing powder polishing effect of cerium based polishing powder is best, it has been replaced by other polishing powder (such as SiO2, ZrO2 and Fe2O3) applications, so there will be a cerium based rare earth polishing powder, known as the "king of polishing powder".
What's the use of rare earth?
Is the chemistry of rare earth elements in the periodic table lanthanides (La) cerium, lanthanum, praseodymium (Ce) (Pr), neodymium (Nd), promethium (Pm), samarium (Sm) and europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium, holmium (Ho (Dy)), ER (Er), (Tm), thulium ytterbium lutetium (Yb), (Lu), and 15 with lanthanide two elements closely related to scandium (Sc) and yttrium (Y) a total of 17 kinds of elements known as rare earth elements (Rare, Earth). Rare earths (RE or R). Rare earth (rare, earth) has "industrial vitamins" laudatory name. Now it has become a very important strategic resource. Rare earth oxide refers to the elements in the periodic table of atomic number from 57 to 71 of the 15 Lanthanide Oxides, as well as with the lanthanide elements similar to the chemical properties of scandium (Sc) and yttrium (Y) oxides of 17 elements. Rare earth elements have been widely used in the fields of petroleum, chemical, metallurgy, textile, ceramics, glass, permanent magnet materials, with the continuous progress of science and technology breakthrough and application technology, rare earth oxide value will become more and more large.
Rare earth in the end what to do ah?
Rare earth is generally separated from the oxide state, although the earth's reserves are very large, but smelting and purification difficult, it seems relatively rare, named after rare earth. In general, rare earths on earth exist in the form of rare earth oxides.
Use of rare earth? Which industries depend on him?
The rare earth industry "gold", because of its excellent photoelectric magnetic and other physical properties, and other materials composed of new materials, the performance of different varieties, the most obvious function is to greatly improve the quality and performance of other products. For example, the tactical performance of steels, aluminum alloys, magnesium alloys and titanium alloys for tanks, aircraft and missiles has been greatly improved. What's more, rare earth is also a high-tech lubricant for electronics, lasers, nuclear industry, superconductivity, and so on. Once used in military affairs, rare earth technology will inevitably bring about a leap in military technology. In a sense, the US military's partial wars in the cold war, the backward sex control, and the unbridled and open killing of the enemy are due to the superman in the field of rare earth science and technology.
What's the use of rare earth? Why Japan wants to buy Chinese rare earth?
In the aspect of glass ceramics with rare earth oxide or rare earth concentrate after processing, can be used as a polishing powder is widely used in polishing of optical glass, glass sheet, tube, tube, plate glass, plastic and metal tableware; in the glass melting process, using two cerium oxide has very strong oxidation of iron. Reduce the content of iron in glass, in order to achieve the purpose of removing the green glass; rare earth oxides can be made of optical glass and special glass for different purposes, including through infrared, ultraviolet absorbing glass, acid resistant and heat-resistant glass, - X- - ray glass; rare earth in ceramic glaze and glaze. Fragmentation can reduce the glaze, and can make the products show different color and luster, is widely used in ceramic industry. In terms of new material of rare earth cobalt and neodymium iron boron permanent magnetic material, with high remanence, high coercivity and high energy product, is widely used in electronic and aerospace industries; pure rare earth oxides and iron oxide into combinations of garnet single crystal and polycrystal, can be used in microwave and electronic industry;
Why should China export rare earths at a low price?
Indium, an important raw material for LCD panels. China banned the export of rare earth, so that the Taiwan region, Japan and South Korea and other countries of the LCD manufacturers tremble with fear, the international market, the LCD facial prices rose!
What's the stability of rare earth calcium zinc stabilizer? What are the advantages?
The dispersion and anti decomposition properties of rare earth calcium zinc stabilizer are better than that of lead salt stabilizer, and the color, brightness and firmness of the product are improved. Besides, the defects that lead salts are easy to generate sulfuration pollution are avoided.
What is the difference between a multicomponent alloy and a rare earth alloy?
Aluminum is an alloy of aluminum and copper, magnesium and manganese. This alloy is suitable for pressing and forming. The strength and hardness of the alloy are much larger than those of general aluminum.