Cov Khoom thiab Cov Teeb Meem ntawm Manganese ua ib qho Alloying Element

Hauv kev lag luam sector,manganeseyog ib qho tseem ceeb ntawm cov khoom siv alloying, pom nyob rau hauv ntau yam kev lag luam xws li steel, aluminium alloys, thiab roj teeb. Nws cov khoom tshwj xeeb muaj kev cuam tshuam loj heev rau qhov zoo thiab kev ua haujlwm ntawm ntau yam alloys. Kab lus no yuav delve rau hauv cov khoom ntawm manganese raws li cov khoom siv alloying thiab cov teebmeem uas nws tsim.

Manganeseyog ib qho tshuaj lom neeg hlau nrog lub cim Mn thiab tus lej atomic 25 nyob rau hauv daim ntawv teev sijhawm. Visually, nws zoo nkaus li nyuaj, greyish - hlau dawb thiab feem ntau pom nyob rau hauv ua ke nrog rau lwm yam.

Raws li ib qho khoom siv hlau, manganese tau yooj yim tsim cov tebchaw nrog lwm cov ntsiab lus. Tam sim no, ntiaj teb manganese reserves tau kwv yees kwv yees li ntawm 630 lab tons, muab cov peev txheej zoo rau nws cov ntawv thov kev lag luam thoob plaws.

Lub cev muaj zog

Manganese muaj zog thiab nkig lub cev, nrog rau qhov ceev ntawm kwv yees li 7.43 g / cm³, melting point nyob ib ncig ntawm 1,244 degree, thiab lub boiling point ze 2,095 degree.

Cov khoom siv lub cev no ua rau cov manganese zoo heev rau cov txheej txheem alloying, vim nws tuaj yeem yooj yim sib xyaw rau hauv cov hlau tsis muaj teeb meem loj lossis theem tsis ruaj khov.

Chemical Properties

Manganese nthuav tawm ntau yam tshuaj lom neeg. Nws pom muaj zog reactivity, muaj ntau lub xeev oxidation, thiab muaj lub siab electronegativity, ua rau nws nyiam cov electrons hauv cov tshuaj tiv thaiv.

Lub solubility ntawm nws cov tebchaw sib txawv heev nyob ntawm seb lawv cov khoom; Piv txwv li, manganese sulfate yog soluble heev, thaum manganese dioxide tsis zoo soluble. Tsis tas li ntawd, manganese tuaj yeem tsim cov complexes nrog ntau yam ligands xws li dej thiab ammonia, thiab cov complexes feem ntau muaj cov khoom tshwj xeeb thiab muaj txiaj ntsig.

Qhov cuam tshuam rau steel

Manganesetseem ceeb txhim kho cov cuab yeej cuab tam ntawm steel,nce nws hardness thiab lub zog, txawm tias qhov kev txhim kho no yog cuam tshuam los ntawm cov ntsiab lus carbon.

Hais txog hardenability,manganese txo cov cua txias tseem ceeb thaum lub sij hawm quenching, yog li txhim kho cov hlau hardenability, nrog rau nws cov nyhuv yog superior rau lwm yam alloying ntsiab.

Cov qib tshwj xeeb steel zoo li Hardfield steel,uas muaj 10%-14% manganese, muaj peev xwm ua haujlwm zoo heev. Tsis tas li ntawd, manganese accelerates tus nqi nkag ntawm carbon thaum carburization.

Manganese sulfide (MnS) tsim los ntawm nws cov tshuaj tiv thaivnrog leej faj tsis tsuas yog pab txhawb kev ua haujlwm ntawm cov hlau, tab sis kuj tiv thaiv lub brittleness tshwm sim los ntawm leej faj, txhim kho nto tiav ntawm cov hlau. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias thaum cov ntsiab lus ntawm manganese thiab carbon siab dhau lawm, cov hlau yog nquag embrittlement.

Qhov cuam tshuam rau aluminium alloys

Noj AA6063 alloy ua piv txwv, ntxiv manganese tuaj yeem txhim kho nws lub zog tensile, ua kom cov aluminium alloy tswj lub teeb yuag thaum ua tiav kev ua haujlwm zoo tshaj plaws.

Kev lag luam hlau (suav txog kwv yees li 90% ntawm kev siv manganese thoob ntiaj teb)

Hauv kev lag luam steel, manganese muaj kev siv dav heev. Nws txhim khu cov khoom steel, nrog rau lub zog, hardness, hnav tsis kam, corrosion kuj, txo brittleness, thiab txhim kho hardenability.

Me me ntawm manganese kuj ua rau deoxidizer, tshem tawm cov pa oxygen los ntawm cov hlau. Tsis tas li ntawd, nws hloov cov hlau sulfide (FeS) los tsim manganese sulfide (MnS).

Manganese yog siv los tsim ntau hom hlau, xws li manganese hlau, silicon-manganese alloy, thiab iav hlau. Ntawm cov no, siab -lub zog qis- hlau alloy (HSLA) yog siv dav hauv kev tsim kho thiab kev thauj mus los; Manganese steel (Hardfield steel) yog siv rau nws qhov kev ua tau zoo hauv kev tsim khoom siv mining, railway lem, thiab ntau dua.

Kev lag luam Aluminium Alloy

Ntxiv manganese rau aluminium alloys txhim khu lawv lub zog, toughness, thiab corrosion kuj. Vim yog cov khoom zoo tshaj no, manganese- muaj cov aluminium alloys tau siv dav hauv kev lag luam tsheb, feem ntau yog siv rau kev tsim cov cav ntoo, cov khoom sib kis, thiab lwm yam.

Roj teeb teb

Manganese kuj tseem muaj cov ntawv thov tseem ceeb hauv cov roj teeb, suav nrog ntau hom xws li alkaline roj teeb, zinc- roj teeb carbon, thiab lithium{1}} roj teeb ion.

Hauv cov roj teeb alkaline, manganese dioxide yog siv los ua qhov zoo electrode; nyob rau hauv zinc- roj teeb carbon, nws ua hauj lwm raws li ib tug depolarizer; thiab hauv lithium- roj teeb ion, manganese ua ke nrog cov hlau xws li npib tsib xee thiab cobalt los ua cov khoom siv electrode zoo.

Resistor Kev Lag Luam

Los ntawm kev sib xyaw manganese dioxide nrog cov pa roj carbon monoxide, cov resistors nrog cov nqi sib txawv tuaj yeem tsim tau, nrog rau qhov muaj nuj nqis los ntawm ob peb ohms mus rau ob peb megohms, ua tau raws li qhov xav tau ntawm ntau yam circuits.

Lwm Daim Ntawv Thov

Hauv kev lag luam ceramics, manganese feem ntau yog siv los ua cov xim rau xim av nplaum, ua ntau yam xim xws li dub, xim av, thiab ntshav.

Hauv kev ua liaj ua teb, ntxiv manganese rau cov chiv tau raug pov thawj los txhim kho cov qoob loo zoo thiab tawm los thaum txhim kho kab mob.

Tsis tas li ntawd, manganese tuaj yeem siv rau hauv cov txheej txheem kho dej kom tshem tawm cov hlau thiab hydrogen sulfide los ntawm dej.

Manganese yog cov deoxidizer zoo heev uas tuaj yeem tshem tawm cov pa oxygen ntawm cov hlau. Piv nrog rau lwm cov ntsiab lus alloying, nws tsis tshua muaj kev sib cais thiab muaj kev ruaj ntseg zoo dua.

Nyob rau hauv cov nqe lus ntawm kev txhim kho machinability, manganese ua ke nrog sulfur los ua cov mos inclusions, uas pab txhawb kev tsim cov chips ruaj khov thiab nti tawg thaum lub sij hawm machining.

Tsis tas li ntawd, nws tuaj yeem ua ke nrog cov sulfur hauv cov hlau kom txo qhov tsim ntawm pyrite, yog li tiv thaiv kev tawg hauv cov hlau thaum lub sij hawm siab - kub dov thiab nce steel zeb ntau lawm.

Tsis tas li ntawd, manganese txhim kho lub zog tensile thiab hardenability ntawm alloys, txawm hais tias nws yuav txo tau me ntsis ductility. Nws kuj tseem muab cov manganese sulfide kheej kheej uas yuav tsum tau ua dawb - txiav steels, ua kom lawv cov machinability zoo heev.

Nyob rau hauv cov ntsiab lus, manganese, raws li ib tug tseem ceeb alloying caij, muaj cov yam ntxwv ntawm lub cev thiab tshuaj lom neeg cov khoom uas ua rau ib tug tseem ceeb lub luag hauj lwm ntawm ntau yam alloys xws li hlau thiab txhuas alloys.

Nws muaj cov ntawv thov tseem ceeb hauv ntau qhov chaw xws li steel, aluminium alloys, roj teeb, thiab resistors. Raws li kev lag luam txuas ntxiv txhim kho, manganese lub luag haujlwm tseem ceeb hauv cov ntawv thov kev lag luam yuav nyob ruaj khov, pab txhawb kev nce qib thoob plaws ntau yam kev lag luam.