Knowledge,and,application,boro business, insurance Knowledge and application of boron
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Amorphous boron powder is a kind of powder that the color from dark brown to black. Crystal boron is hard andbrittle solid with black to silver metallic luster. Boron conductivity was increasingwith the temperature increased. Borons chemical property depends on itsphysical state, amorphous boron can slowly oxidize in the air even at roomtemperature, and the crystal boron is stable even heated, only can slowly reactwith strong oxidant. Amorphous boron powder at high temperatures can burn inthe air, produce red flame; also can react with halogens, nitrogen and metals,forming boron halides, boron nitride and metal boride, but does not directlyinteract with the hydrogen.Boron oreis a widely used chemical mineral, can burn with the compounds of hydrogen,lithium, beryllium and so on, is a kind of high-energy jet fuel. Boron andboron compounds are widely used in chemical industry, metallurgy, optical glass,defense, nuclear, pharmaceutical, rubber and light industry. In the chemicalindustry, borax, boric acid can be used as soaps, detergents and otherhousehold chemical products, additives. Boron-containing detergent has hair-protection,strong detergency, no pollution and other properties. Certain borides can alsobe made of good reducing agents, catalysts, bromide, etc.In themetallurgical industry, borax has the ability to melt metal oxides, used for ametallurgical flux. Colemanite can be instead of fluorite used in alkaline oxidationconverter steelmaking. Copper alloy with traces boron can increase itsconductivity. Boron at high temperatures can react with the oxygen and nitrogen,commonly used for degassing agent. Plus 0.001-0.005% boron to the steel canimprove the high temperature strength, refine the steel grain, improvedhardenability. After steel surfaces boronizing, can significantly increase thesurface hardness, also improve the chemical stability. 0.001-0.003% boron addedto the malleable iron, can shorten the treatment time, refine the graphite,distributed evenly. In the machinery industry, boron is used in grinding,drilling and polishing hard metal, precious stones and other hard materials."Boronizing" is a new process in mechanical processing industry, itcan improve parts surface hardness and wear resistance, oxidation resistance.In theelectronics industry, some of boride compounds in boron series are insulatingmaterials, and some borides are good conductive materials, having the propertiesof semiconductors, and electron emission properties, can be used to manufacturevarious electronic element, device, used as the ignition tube of ignitionelectrode, telecommunications equipment, capacitors, semiconductors admixtures,high frequency electric and plasma arc insulator, radar delivery window, etc.In thedefense industry, boron compounds can be used as high-energy jet fuel androcket fuel. Boron carbide used for manufacturing jet blades and cermet. Boronnitride is a ultra-high temperature, super-hard material, for manufacturingrocket nozzles. Isotope boron with strong neutron absorption ability, so borideis used as control rods and shield material in nuclear reactor regulator. Addingboron to plastic will have radiation performance.Accordingto metal powdersupplier, boron is also extensively usedfor glass, ceramic industry, manufacturing high-quality heat-resistantborosilicate glass, glass fibers, optical lens, insulation material andfiberglass. Boron and cobalt, titanium, nickel and the like can be made ofcermet. Boron is also used for manufacturing enamel, glaze and so on. Inaddition, boron is also used as a preservative, solder for manufacturingsuperhard abrasive.Source:http://www.mhcmp.com
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