Cov kev siv selenium hauv kev lag luam yog dab tsi?
Kev lag luam hluav taws xob
Selenium muaj cov khoom photosensitivity thiab semiconductor, thiab feem ntau siv hauv kev lag luam hluav taws xob los tsim cov photocells, photosensors, laser devices, infrared controllers, photocells, photoresistors, optical instruments, photometers, rectifiers, thiab lwm yam. Kev siv selenium hauv kev lag luam hluav taws xob suav txog li 30% ntawm tag nrho cov kev thov. High purity selenium (99.99%) thiab selenium alloys yog cov khoom siv nqus lub teeb tseem ceeb hauv photocopiers, siv rau hauv cov ntawv theej thiab photoreceptors rau laser presses. Qhov tseem ceeb ntawm grey selenium yog tias nws muaj cov khoom semiconductor ib txwm muaj thiab tuaj yeem siv rau kev tshawb nrhiav thiab kho xov tooj cua nthwv dej. Selenium rectifier muaj cov yam ntxwv ntawm kev tiv thaiv load, tiv taus kub siab thiab ruaj khov hluav taws xob zoo.
Kev lag luam iav
Selenium yog ib qho tshuaj zoo uas ua rau cov xim tsis zoo thiab feem ntau siv rau hauv kev lag luam iav. Yog tias cov khoom siv iav muaj cov hlau ions, lub iav yuav qhia lub teeb ntsuab, thiab selenium yog ib qho khoom khov kho nrog cov xim hlau ci ntsa iab, ntxiv me ntsis selenium tuaj yeem ua rau lub iav zoo li liab, ntsuab thiab liab sib txuas ua ke, ua rau lub iav tsis muaj xim, yog tias ntxiv selenium ntau dhau, koj tuaj yeem ua lub iav ruby nto moo - selenium iav. Selenium thiab lwm yam hlau tuaj yeem siv ua ke los muab cov iav sib txawv xim xws li grey, tooj liab thiab liab dawb. Cov iav dub siv hauv tsev thiab tsheb kuj muaj selenium, uas txo qhov muaj zog ntawm lub teeb thiab qhov ceev ntawm kev hloov pauv cua sov. Tsis tas li ntawd, selenium iav kuj tseem tuaj yeem siv los tsim lub teeb ntawm lub teeb liab ntawm qhov kev sib tshuam.
Kev lag luam hlau
Selenium tuaj yeem txhim kho qhov ua haujlwm ntawm cov hlau, yog li nws feem ntau siv rau hauv kev lag luam metallurgical. Ntxiv 0.3-0.5% selenium rau cov hlau cam khwb cia, stainless hlau thiab tooj liab alloys tuaj yeem txhim kho lawv cov khoom siv kho tshuab, ua rau cov qauv ntom dua, thiab qhov chaw ntawm cov khoom siv tshuab du dua. Cov alloys ua los ntawm selenium thiab lwm yam ntsiab lus feem ntau siv rau hauv kev tsim cov rectifiers qis-voltage, photocells, thiab cov ntaub ntawv thermoelectric.
Kev lag luam tshuaj lom neeg
Selenium thiab nws cov tshuaj feem ntau siv ua cov tshuaj catalysts, vulcanizers thiab antioxidants. Kev siv selenium ua catalyst muaj qhov zoo ntawm cov tshuaj tiv thaiv me me, pheej yig, tsis muaj kuab paug rau ib puag ncig, yooj yim kho tom qab, thiab lwm yam. Piv txwv li, elemental selenium yog cov tshuaj catalyst hauv cov txheej txheem ntawm kev npaj cov elemental sulfur los ntawm sulfite reaction. Hauv cov txheej txheem ntawm kev tsim roj hmab, selenium feem ntau siv ua tus neeg sawv cev vulcanizing los txhim kho kev hnav tsis kam ntawm roj hmab.
Kev lag luam kho mob
Selenium yog ib feem tseem ceeb ntawm qee cov enzymes antioxidant (glutathione peroxidase) thiab selenium-P protein hauv tsiaj txhu thiab tib neeg, uas tuaj yeem txhim kho tib neeg lub cev tiv thaiv kab mob, mob qog noj ntshav, mob plab, mob plawv thiab mob hlwb, mob prostate, mob pom kev, thiab lwm yam, yog li selenium yog siv dav hauv kev kho mob rau kev kho mob thiab kev txo qis ntawm ntau yam kab mob uas tshwm sim los ntawm selenium tsis txaus. Txij li thaum selenium yog ib qho tseem ceeb rau lub cev tib neeg thiab muaj kev cuam tshuam tseem ceeb rau tib neeg kev noj qab haus huv, kev lag luam kev kho mob tau pib tsim ntau yam khoom noj selenium, xws li malt selenium.
Lwm cov ntawv thov
Hauv kev ua liaj ua teb, selenium tuaj yeem ntxiv rau hauv cov chiv kom txhim kho qhov xwm txheej ntawm cov av selenium tsis txaus thiab txhawb kev loj hlob ntawm cov nroj tsuag. Selenium kuj tseem siv rau hauv cov tshuaj pleev ib ce, thiab qee cov tshuaj pleev ib ce uas muaj selenium muaj cov teebmeem tiv thaiv kev laus. Tsis tas li ntawd, kev ntxiv selenium rau hauv cov tshuaj plating tuaj yeem txhim kho qhov zoo li ntawm cov khoom plating, yog li nws kuj yog ib qhosiv rau kev lag luam plating.