Qhov sib txawv ntawm cov hlau nplaum muaj xws li:
Alnico hlau nplaum
Alnico hlau nplaum muaj nyob rau hauv cam khwb cia, sintered, thiab bonded versions. Feem ntau yog cam khwb cia alnico hlau nplaum. Lawv yog ib pab pawg tseem ceeb heev ntawm cov hlau nplaum ruaj khov. Cov hlau nplaum alnico muaj Ni, A1, Fe, thiab Co nrog qee qhov me me ntxiv ntawm Ti thiab Cu. Cov alnicos muaj coercivities siab heev vim yog cov duab anisotropy ntawm Pe los yog Fe, Co hais. Cov khoom no yog precipitated nyob rau hauv ib tug tsis muaj zog ferromagnetic los yog non-ferromagnetic Ni-Al matrix. Tom qab txias, lub isotropic alnicos 1-4 yog tempered rau ob peb teev ntawm qhov kub thiab txias.
Spinodal decomposition yog cov txheej txheem ntawm theem sib cais. Qhov loj thiab cov duab kawg ntawm cov khoom yog txiav txim siab nyob rau hauv cov theem thaum ntxov ntawm spinodal decomposition. Alnicos muaj qhov zoo tshaj plaws kub coefficients yog li dhau qhov kub hloov pauv lawv muaj qhov hloov pauv tsawg tshaj plaws hauv cov zis tawm. Cov hlau nplaum no tuaj yeem ua haujlwm ntawm qhov kub siab tshaj plaws ntawm cov hlau nplaum.
Demagnetization ntawm Alnicos tuaj yeem txo tau yog tias qhov kev ua haujlwm tau zoo dua li ua ntej lub cev ua haujlwm uas yog txoj cai ua haujlwm zoo ntawm cov pastige alnico. Txawm li cas los xij, tag nrho cov txheej txheem demagnetizing sab nraud yuav tsum tau muab coj los xav. Ib qhov ntev loj rau txoj kab uas hla thiab qhov sib nqus zoo sib nqus kuj yuav tsum tau.
Bar Magnets
Bar hlau nplaum yog cov duab plaub ntawm cov khoom, uas yog tsim los ntawm cov hlau, hlau los yog lwm yam khoom ferromagnetic uas muaj cov yam ntxwv lossis muaj zog sib nqus. Lawv muaj ob tug ncej, ib tug ncej qaum teb thiab ib tug ncej qab teb.
Thaum lub bar hlau nplaum raug tshem tawm ywj pheej, nws aligns nws tus kheej kom sab qaum teb ncej taw qhia rau kev taw qhia ntawm cov hlau nplaum sab qaum teb ntawm lub ntiaj teb.
Muaj ob hom bar hlau nplaum. Cylindrical bar hlau nplaum tseem hu ua rod hlau nplaum thiab lawv muaj lub thickness siab heev nyob rau hauv txoj kab uas hla ua rau lawv cov khoom muaj hlau nplaum siab. Cov pab pawg thib ob ntawm cov hlau nplaum yog cov hlau nplaum sib npaug. Cov hlau nplaum no pom cov ntawv thov feem ntau hauv kev tsim khoom thiab engineering sectors vim lawv muaj zog sib nqus thiab teb ntau dua li lwm cov hlau nplaum.
Yog hais tias ib tug bar hlau nplaum tawg los ntawm nruab nrab, ob daim tseem yuav muaj ib tug sab qaum teb ncej thiab ib tug sab qab teb ncej, txawm tias qhov no yog rov qab ob peb zaug. Lub bar hlau nplaum lub zog sib nqus yog qhov muaj zog tshaj plaws ntawm tus ncej. Thaum ob daim hlau nplaum raug coj los ze rau ib leeg, lawv tsis zoo li cov ncej yeej nyiam thiab zoo li cov ncej yuav tawm tsam ib leeg. Bar hlau nplaum nyiam cov ntaub ntawv ferromagnetic xws li cobalt, nickel, thiab hlau.
Bonded Magnets
Cov hlau nplaum nplaum muaj ob lub ntsiab lus tseem ceeb: ib qho tsis muaj hlau nplaum polymer thiab cov hmoov sib nqus nyuaj. Cov tom kawg tuaj yeem tsim los ntawm txhua yam khoom sib nqus, suav nrog alnico, ferrite thiab neodymium, cobalt thiab hlau. Ob lossis ntau dua cov hmoov sib nqus kuj tuaj yeem sib xyaw ua ke yog li tsim cov hmoov sib tov sib xyaw. Cov khoom ntawm cov hmoov yog ua tib zoo optimized los ntawm chemistry thiab cov kauj ruam los ntawm kev ua cov kauj ruam uas lub hom phiaj siv cov hlau nplaum sib txuas txawm tias cov ntaub ntawv zoo li cas.
Bonded hlau nplaum muaj ntau qhov zoo nyob rau hauv qhov ze net zoo tsim tsim yuav tsum tsis muaj lossis qis ua tiav thaum piv rau lwm cov txheej txheem metallurgical. Yog li cov nqi ntxiv tuaj yeem ua rau kev lag luam hauv ib qho kev ua haujlwm. Cov hlau nplaum no yog cov khoom siv ntau yam thiab lawv muaj ntau yam kev xaiv. Qee qhov zoo ntawm cov hlau nplaum sib txuas yog tias lawv muaj cov khoom siv zoo heev thiab cov hluav taws xob tiv thaiv zoo thaum piv nrog cov ntaub ntawv sintered. Cov hlau nplaum no kuj muaj nyob rau hauv ntau qhov sib txawv thiab cov duab. Lawv muaj qhov zoo geometric kam rau ua nrog kev ua haujlwm qis qis. Lawv kuj muaj nrog multipole magnetization.
Ceramic Magnets
Lub sij hawm ceramic magnet yog hais txog Ferrite hlau nplaum. Cov hlau nplaum ceramic no yog ib feem ntawm tsev neeg hlau nplaum ruaj khov. Lawv yog cov nqi qis tshaj plaws thaum piv rau lwm cov hlau nplaum. Cov khoom siv hlau nplaum ceramic yog hlau oxide thiab strontium carbonate. Cov hlau nplaum ferrite no muaj qhov nruab nrab sib nqus zog piv thiab lawv tuaj yeem siv rau qhov kub thiab txias. Ib qho tshwj xeeb kom zoo dua lawv muaj yog tias lawv muaj corrosion resistant thiab yooj yim heev rau magnetize, ua rau lawv thawj xaiv rau ntau tus neeg siv khoom, kev lag luam, kev siv thiab kev lag luam. Cov hlau nplaum ceramic muaj cov qib sib txawv nrog rau feem ntau yog Qib 5. Lawv muaj nyob rau hauv cov duab sib txawv xws li cov blocks thiab cov duab nplhaib. Lawv kuj tuaj yeem ua kev cai tsim kom tau raws li cov neeg siv khoom tshwj xeeb.
Cov hlau nplaum Ferrite tuaj yeem siv rau qhov kub thiab txias. Cov khoom sib nqus ntawm cov hlau nplaum ceramic poob qis nrog qhov kub thiab txias. Lawv kuj yuav tsum tau tshwj xeeb machining kev txawj ntse. Lwm qhov ntxiv kom zoo dua yog tias lawv tsis tas yuav muaj kev tiv thaiv los ntawm cov xeb xeb vim tias lawv muaj cov yeeb yaj kiab ntawm cov hlau nplaum hmoov ntawm lawv qhov chaw. Ntawm kev sib txuas, lawv feem ntau txuas nrog cov khoom siv los ntawm kev siv superglues. Ceramic Magnets yog nkig thiab tawv heev, tawg yooj yim yog poob los yog smashed ua ke, yog li yuav tsum tau ceev faj ntxiv thiab saib xyuas thaum tuav cov hlau nplaum no.
Hluav taws xob
Electromagnets yog cov hlau nplaum uas muaj hluav taws xob tam sim no ua rau cov hlau nplaum sib nqus. Feem ntau lawv muaj cov hlau uas raug mob rau hauv ib lub kauj. Cov tam sim no tsim ib qho chaw sib nqus los ntawm cov hlau. Thaum lub tam sim no raug muab tua lub magnetic teb ploj. Electromagnets muaj cov xaim xaim uas feem ntau raug mob nyob ib puag ncig cov tub ntxhais hlau nplaum uas yog tsim los ntawm ferromagnetic teb. Lub magnetic flux yog concentrated los ntawm cov hlau nplaum, uas ua rau cov hlau nplaum muaj zog dua.
Ib qho txiaj ntsig ntawm electromagnets piv rau cov hlau nplaum tas mus li yog qhov kev hloov pauv tuaj yeem siv sai sai rau cov hlau nplaum los ntawm kev tswj cov hluav taws xob tam sim no hauv winding. Txawm li cas los xij, qhov teeb meem tseem ceeb ntawm electromagnets yog qhov yuav tsum tau muaj cov khoom siv txuas ntxiv ntawm tam sim no los tswj cov hlau nplaum. Lwm qhov tsis zoo yog tias lawv ua kom sov sai heev thiab siv ntau lub zog. Lawv kuj tso tawm ntau lub zog hauv lawv qhov chaw sib nqus yog tias muaj kev cuam tshuam ntawm cov hluav taws xob tam sim no. Cov hlau nplaum no feem ntau siv los ua cov khoom ntawm ntau yam khoom siv hluav taws xob, xws li cov tshuab hluav taws xob, relays, electro-mechanical solenoids, motors, loudspeakers, thiab cov khoom sib nqus sib nqus. Lwm qhov kev siv zoo hauv kev lag luam yog txav cov khoom hnyav thiab khaws cov hlau thiab hlau crap. Qee cov khoom ntawm electromagnets yog cov hlau nplaum nyiam cov khoom siv ferromagnetic xws li npib tsib xee, cobalt, thiab hlau thiab zoo li cov hlau nplaum feem ntau zoo li cov ncej txav deb ntawm ib leeg thaum tsis zoo li cov ncej sib nyiam.
Flexible Magnets
Cov hlau nplaum yooj yim yog cov khoom sib nqus tsim los ua kom tsis muaj kev tawg lossis lwm yam kev puas tsuaj. Cov hlau nplaum no tsis yog tawv lossis tawv, tab sis tuaj yeem khoov tau. Ib qho saum toj no qhia hauv daim duab 2: 6 tuaj yeem muab dov. Cov hlau nplaum no tshwj xeeb vim tias lwm cov hlau nplaum tsis tuaj yeem khoov. Tshwj tsis yog nws yog cov hlau nplaum hloov tau, nws yuav tsis khoov yam tsis muaj deforming lossis tawg. Ntau cov hlau nplaum hloov tau yooj yim muaj cov khoom siv hluavtaws uas muaj txheej nyias ntawm ferromagnetic hmoov. Lub substrate yog cov khoom ntawm cov khoom siv tau yooj yim, zoo li vinyl. Cov hluavtaws substrate yuav sib nqus thaum cov hmoov ferromagnetic siv rau nws.
Ntau txoj hauv kev tsim khoom siv rau kev tsim cov hlau nplaum no, txawm li cas los xij yuav luag txhua tus ntawm lawv koom nrog daim ntawv thov ferromagnetic hmoov rau cov khoom siv hluavtaws. Cov hmoov ferromagnetic yog tov ua ke nrog ib tug nplaum binding tus neeg sawv cev kom txog rau thaum nws sticks rau cov hluavtaws substrate. Cov hlau nplaum yooj yim tuaj nyob rau hauv ntau hom piv txwv cov ntawv sib txawv, cov duab, thiab qhov ntau thiab tsawg feem ntau yog siv. Lub cev muaj zog, qhov rooj, cov txee hlau thiab cov tsev siv cov hlau nplaum hloov tau yooj yim. Cov hlau nplaum no kuj muaj nyob rau hauv ib daim hlab, cov strips yog nyias thiab ntev dua piv rau cov ntawv txheeb.
Nyob rau hauv kev ua lag luam lawv feem ntau yog muag thiab ntim rau hauv yob. Cov hlau nplaum yooj yim muaj ntau yam nrog lawv cov khoom khoov tau thiab lawv tuaj yeem qhwv ib ncig ntawm cov tshuab kom yooj yim nrog rau lwm qhov chaw thiab cov khoom. Cov hlau nplaum hloov tau tau txais kev txhawb nqa txawm tias cov chaw uas tsis zoo tag nrho du lossis tiaj tus. Cov hlau nplaum yooj yim tuaj yeem txiav thiab ua rau hauv cov duab uas xav tau thiab ntau thiab tsawg. Feem ntau ntawm lawv tuaj yeem txiav tau txawm tias muaj cov cuab yeej txiav tsoos. Cov hlau nplaum yooj yim tsis cuam tshuam los ntawm kev drilling, lawv yuav tsis tawg tab sis lawv yuav tsim qhov tsis ua rau cov khoom sib nqus ib puag ncig.
Industrial Magnets
Cov hlau nplaum muaj zog yog cov hlau nplaum muaj zog heev uas siv rau hauv kev lag luam. Lawv yoog tau rau ntau hom kev lag luam thiab lawv tuaj yeem pom nyob rau hauv txhua yam duab lossis loj. Lawv kuj tseem nrov rau lawv cov qib ntau thiab zoo rau khaws cov khoom ntawm cov hlau nplaum seem. Cov hlau nplaum ruaj khov tuaj yeem ua los ntawm alnico, tsis tshua muaj ntiaj teb, lossis ceramic. Lawv yog cov hlau nplaum uas yog tsim los ntawm cov khoom ferromagnetic uas yog magnetized los ntawm sab nraud magnetic teb, thiab muaj peev xwm nyob rau hauv ib tug magnetized lub xeev nyob rau lub sij hawm ntev. Cov hlau nplaum muaj peev xwm tswj hwm lawv lub xeev yam tsis muaj kev pab sab nraud, thiab lawv muaj ob tug ncej uas qhia txog kev siv zog nyob ze ntawm tus ncej.
Samarium Cobalt Cov hlau nplaum muaj peev xwm tiv taus qhov kub thiab txias txog li 250 ° C. Cov hlau nplaum no tiv taus corrosion heev vim lawv tsis muaj cov kab hlau nyob hauv lawv. Txawm li cas los xij, hom hlau nplaum no yog kim heev los tsim vim cov nqi ntau lawm ntawm cobalt. Txij li cov hlau nplaum cobalt muaj nqis rau cov txiaj ntsig lawv tsim cov hlau nplaum siab heev, samarium cobalt muaj cov hlau nplaum feem ntau yog siv rau hauv qhov kub thiab txias, thiab ua rau motors, sensors, thiab generators.
Alnico Industrial Magnet muaj kev sib xyaw zoo ntawm cov ntaub ntawv uas yog aluminium, cobalt, thiab npib tsib xee. Cov hlau nplaum no kuj muaj xws li tooj liab, hlau, thiab titanium. Nyob rau hauv kev sib piv rau yav dhau los, alnico hlau nplaum yog ntau tshav kub-resistant thiab muaj peev xwm tiv taus kub heev txog li 525 ° C. Lawv kuj yooj yim dua rau demagnetize vim lawv yog cov rhiab heev. Industrial Electromagnets yog kho tau thiab tuaj yeem hloov mus rau thiab tawm.
Cov hlau nplaum muaj peev xwm siv tau xws li:
Lawv yog siv los nqa cov ntawv hlau, hlau castings, thiab hlau phaj. Cov hlau nplaum muaj zog no yog siv hauv ntau lub tuam txhab tsim khoom raws li cov khoom siv hlau nplaum uas muaj zog heev uas ua rau cov neeg ua haujlwm yooj yim. Cov hlau nplaum muaj nyob rau sab saum toj ntawm cov khoom thiab tom qab ntawd cov hlau nplaum yog qhib los tuav cov khoom thiab ua kom hloov mus rau qhov chaw xav tau. Qee qhov zoo ntawm kev siv cov hlau nplaum nqa cov khoom lag luam yog tias muaj kev pheej hmoo tsawg heev ntawm cov leeg nqaij thiab pob txha teeb meem ntawm cov neeg ua haujlwm.
Kev siv cov hlau nplaum no pab tsim cov neeg ua haujlwm tiv thaiv lawv tus kheej los ntawm kev raug mob, tshem tawm qhov xav tau ntawm lub cev nqa cov khoom hnyav. Cov hlau nplaum muaj zog txhim kho cov khoom tsim tau hauv ntau lub tuam txhab tsim khoom, vim tias kev nqa thiab nqa cov khoom hnyav manually yog siv sijhawm ntev thiab lub cev ntws tawm rau cov neeg ua haujlwm, lawv cov khoom tsim tau cuam tshuam zoo heev.
Sib nqus sib cais
Cov txheej txheem ntawm kev sib nqus sib nqus koom nrog kev sib cais ntawm cov khoom sib tov los ntawm kev siv cov hlau nplaum kom nyiam cov khoom sib nqus. Sib nqus sib cais yog qhov tseem ceeb heev rau kev xaiv ob peb cov zaub mov uas yog ferromagnetic, uas yog cov zaub mov uas muaj cobalt, hlau, thiab npib tsib xee. Ntau cov hlau, xws li nyiaj, txhuas, thiab kub tsis yog hlau nplaum. Ib qho kev sib txawv loj heev ntawm kev siv tshuab feem ntau yog siv los cais cov khoom sib nqus. Thaum lub sij hawm txheej txheem sib nqus sib nqus, cov hlau nplaum tau teem rau hauv ob lub nruas sib cais uas muaj cov kua dej, vim yog cov hlau nplaum, cov hlau nplaum sib nqus tau raug tsav los ntawm lub nruas txav. Qhov no tsim ib qho sib nqus concentrate piv txwv li ore concentrate.
Cov txheej txheem ntawm kev sib nqus sib nqus kuj tseem siv rau hauv electromagnetic cranes uas cais cov khoom sib nqus los ntawm cov khoom tsis xav tau. Qhov no ua rau pom kev siv rau kev tswj cov khib nyiab thiab cov khoom siv thauj khoom. Cov hlau tsis tsim nyog kuj tuaj yeem raug cais tawm ntawm cov khoom nrog txoj kev no. Tag nrho cov khoom yog khaws cia kom huv si. Ntau qhov chaw rov ua dua tshiab thiab cov chaw ua haujlwm siv cov sib nqus sib nqus kom tshem tawm cov khoom siv rov ua dua tshiab, cais cov hlau, thiab ntxuav cov ores, sib nqus pulleys, cov hlau nplaum saum taub hau, thiab cov nruas hlau nplaum yog cov txheej txheem keeb kwm rau kev rov ua dua tshiab hauv kev lag luam.
Sib nqus sib cais yog qhov tseem ceeb heev hauv cov hlau mining. Qhov no yog vim hlau yog heev attracted rau ib tug hlau nplaum. Txoj kev no kuj tseem siv rau hauv kev lag luam kev lag luam kom cais cov kab mob hlau los ntawm cov khoom. Cov txheej txheem no tseem yog ib qho tseem ceeb hauv kev lag luam tshuaj thiab kev lag luam zaub mov. Txoj kev sib nqus sib nqus feem ntau yog siv rau hauv cov xwm txheej uas yuav tsum tau saib xyuas cov pa phem, tswj kev ua qias tuaj, thiab kev ua cov tshuaj. Txoj kev sib nqus tsis muaj zog sib nqus kuj tseem siv los tsim cov khoom siv hlau nplua nuj uas tuaj yeem rov siv dua. Cov khoom no muaj cov kab mob tsawg heev thiab muaj cov hlau hnyav heev.
Sib Nqus Stripe
Magnetic stripe technology tau tso cai rau cov ntaub ntawv khaws cia rau ntawm daim npav yas. Qhov no tau ua tiav los ntawm kev them cov khoom me me magnetically hauv ib kab hlau nplaum ntawm ib kawg ntawm daim npav. Qhov kev siv tshuab hlau nplaum no tau coj mus rau kev tsim cov qauv credit thiab debit card. Qhov no tau hloov pauv nyiaj ntsuab hauv ntau lub tebchaws thoob plaws ntiaj teb. Magnetic stripe kuj tseem hu ua magstrripe. Kev tsim cov ntawv sib nqus stripe uas muaj qhov ua tau zoo heev thiab cov ntaub ntawv tsis muaj kev sib haum xeeb, cov tuam txhab nyiaj txiag thiab cov tsev txhab nyiaj tau ua tiav txhua yam ntawm daim npav raws li kev lag luam thiab cov txheej txheem.
Cov kab txaij sib nqus yog nyob rau hauv cov lej suav tsis tau ntawm kev hloov pauv txhua hnub thiab tau ua kom muaj txiaj ntsig zoo hauv ntau hom ntawv teev npe. Cov neeg uas tshwj xeeb hauv kev nyeem daim npav pom nws yooj yim kom tshem tawm cov ntsiab lus ntawm daim npav hlau nplaum, uas tom qab ntawd xa mus rau lub txhab nyiaj tso cai. Txawm li cas los xij, nyob rau hauv xyoo tas los no, lub hom phiaj-txheej txheem tshiab tau nce zuj zus tuaj rau kev sib tw daim npav sib nqus. Ntau tus kws tshaj lij hais txog txoj kev niaj hnub no raws li kev them nyiaj tsis sib cuag vim tias nws cuam tshuam nrog cov xwm txheej uas cov ntsiab lus pauv yuav raug xa mus, tsis yog los ntawm cov hlau nplaum, tab sis los ntawm cov teeb liab xa los ntawm cov nti me me. Lub tuam txhab Apple Inc. tau pioneered contactless them systems.
Neodymium hlau nplaum
Cov hlau nplaum tsis tshua muaj ntiaj teb no yog cov hlau nplaum ruaj khov. Lawv tsim cov hlau nplaum muaj zog heev, thiab Cov hlau nplaum uas tsim los ntawm cov hlau nplaum neodymium no dhau 1.4 teslas. Neodymium hlau nplaum muaj ntau daim ntawv thov tau teev tseg hauv qab no. Lawv yog siv nyob rau hauv kev tsim cov hard disk drives uas muaj lem thiab ntu uas feature sib nqus hlwb. Tag nrho cov hlwb no yog magnetized thaum twg cov ntaub ntawv sau rau lub tsav. Lwm qhov kev siv cov hlau nplaum no yog nyob rau hauv cov suab nrov, lub mloog pob ntseg, microphones, thiab pob ntseg.
Cov coils tam sim no uas muaj nyob hauv cov khoom siv no yog siv ua ke nrog cov hlau nplaum ruaj khov los hloov hluav taws xob rau hauv lub zog siv tshuab. Lwm daim ntawv thov yog qhov me me neodymium hlau nplaum feem ntau yog siv los muab cov hniav hniav zoo meej rau hauv qhov chaw. Cov hlau nplaum no yog siv rau hauv cov tsev nyob thiab kev lag luam ntawm lub qhov rooj rau kev nyab xeeb thiab kev ruaj ntseg tag nrho. Lwm qhov kev siv ntawm cov hlau nplaum no yog hauv kev kho cov hniav nyiaj hniav kub, caj dab, thiab cov hniav nyiaj hniav kub. Neodymium hlau nplaum yog siv tau zoo heev los tiv thaiv lub xauv nres sensors, cov nres nres nres yog ntsia rau hauv tsheb thiab ntau lub tsheb.
Lub sij hawm xa tuaj: Plaub Hlis-05-2022