Bar hlau nplaum tuaj yeem muab faib ua ib qho ntawm ob hom: mus tas li thiab ib ntus.Cov hlau nplaum tas mus li yeej ib txwm nyob rau hauv txoj hauj lwm "on";uas yog, lawv cov magnetic teb yeej ib txwm nquag nquag thiab tam sim no.Cov hlau nplaum ib ntus yog cov khoom siv hlau nplaum thaum ua los ntawm cov hlau nplaum uas twb muaj lawm.Tej zaum koj tau siv cov hlau nplaum ua si nrog koj niam lub hairpins thaum nws tseem yog menyuam yaus.Nco ntsoov yuav ua li cas koj thiaj li siv tau ib lub hairpin txuas nrog cov hlau nplaum kom sib nqus tau ib lub hairpin thib ob?Tias yog vim li cas thawj hairpin tau los ua ib qho hlau nplaum ib ntus, ua tsaug rau lub zog ntawm cov hlau nplaum nyob ib puag ncig nws.Electromagnets yog ib hom hlau nplaum ib ntus uas dhau los ua "ua haujlwm" tsuas yog thaum lub tshuab hluav taws xob dhau los ntawm lawv tsim ib qho chaw sib nqus.
Dab tsi yog Alnico Magnet?
Ntau cov hlau nplaum niaj hnub no raug hu ua "alnico" hlau nplaum, lub npe muab los ntawm cov khoom ntawm cov hlau alloys uas lawv tau ua: Aluminum, NIckel thiab CObalt.Alnico hlau nplaum feem ntau yog bar- lossis horseshoe-puab.Nyob rau hauv ib tug bar hlau nplaum, cov ncej opposite yog nyob rau ntawm opposite xaus ntawm lub bar, thaum nyob rau hauv ib tug horseshoe hlau nplaum, cov ncej nyob kuj nyob ze ua ke, nyob rau hauv lub kawg ntawm horseshoe.Bar hlau nplaum kuj tseem muaj cov ntaub ntawv tsis tshua muaj hauv ntiaj teb - neodymium lossis samarium cobalt.Ob lub tiaj tiaj bar hlau nplaum thiab puag ncig bar hlau nplaum hom muaj;hom uas siv feem ntau yog nyob ntawm daim ntawv thov uas siv cov hlau nplaum.
Kuv Magnet tawg hauv ob.Nws Puas Tseem Ua Haujlwm?
Tsuas yog qee qhov ua tau poob ntawm cov hlau nplaum raws li qhov tawg, cov hlau nplaum uas tau tawg hauv ob feem ntau yuav tsim ob lub hlau nplaum, txhua tus yuav muaj zog ib nrab li qub, cov hlau nplaum tsis tawg.
Kev txiav txim siab
Tsis yog tag nrho cov hlau nplaum raug cim nrog "N" thiab "S" los xaiv tus ncej.Txhawm rau txiav txim siab tus ncej ntawm cov hlau nplaum bar, tso lub tshuab ntsuas ze ze ntawm cov hlau nplaum thiab saib lub koob;qhov kawg uas ib txwm taw qhia rau lub ntiaj teb sab qaum teb tus ncej yuav ua viav vias mus rau taw tes rau sab qab teb ncej ntawm cov hlau nplaum.Qhov no yog vim hais tias cov hlau nplaum nyob ze rau ntawm lub compass, ua rau ib tug attraction uas muaj zog tshaj lub ntiaj teb nws tus kheej magnetic teb.Yog tias koj tsis muaj lub compass, koj tuaj yeem ntab lub bar rau hauv lub thawv dej.Cov hlau nplaum yuav maj mam tig mus txog rau thaum nws cov ncej qaum teb yog raws li lub ntiaj teb sab qaum teb.Tsis muaj dej?Koj tuaj yeem ua tiav qhov txiaj ntsig zoo ib yam los ntawm kev ncua cov hlau nplaum ntawm nws qhov chaw nrog ib txoj hlua, tso cai rau nws txav thiab tig tau ywj pheej.
Magnet Ratings
Bar hlau nplaum raug ntsuas raws li peb qhov kev ntsuas: residual induction (Br), uas qhia txog lub zog ntawm cov hlau nplaum;lub zog siab tshaj plaws (BHmax), uas ntsuas qhov sib nqus lub zog ntawm cov khoom sib nqus saturated;thiab coercive force (Hc), uas qhia tias nws yuav nyuaj npaum li cas rau demagnetize cov hlau nplaum.
Qhov Sib Nqus Sib Nqus Lub Zog Muaj Zog Ntawm Cov Hlau nplaum nyob qhov twg?
Lub zog sib nqus ntawm ib lub hlau nplaum yog qhov siab tshaj plaws los yog feem ntau concentrated ntawm tus ncej kawg thiab tsis muaj zog nyob rau hauv nruab nrab ntawm cov hlau nplaum thiab ib nrab ntawm tus ncej thiab cov hlau nplaum qhov chaw.Lub zog sib npaug ntawm ob tus ncej.Yog tias koj muaj kev nkag mus rau cov ntaub ntawv hlau, sim ua qhov no: Muab koj cov hlau nplaum tso rau ntawm qhov chaw tiaj tus, pom tseeb.Tam sim no sprinkle hlau filings nyob ib ncig ntawm nws.Cov ntawv thov yuav tsiv mus rau txoj haujlwm uas yog qhov pom ntawm koj lub zog uas muaj zog tshaj, kis sib txawv raws li lub teb tsis muaj zog.
Khaws Bar Magnets
Yuav kom cov hlau nplaum ua haujlwm zoo tshaj plaws, yuav tsum tau saib xyuas kom ntseeg tau tias lawv khaws cia zoo.
Ceev faj tsis txhob cia cov hlau nplaum txuas rau ib leeg;kuj yuav tsum ceev faj tsis txhob cia cov hlau nplaum sib tsoo nrog ib leeg thaum muab tso rau hauv qhov chaw cia.Kev sib tsoo tuaj yeem ua rau muaj kev puas tsuaj rau cov hlau nplaum thiab tuaj yeem ua rau raug mob rau cov ntiv tes uas tuaj ntawm ob lub zog nyiam cov hlau nplaum.
Xaiv lub thawv kaw rau koj cov hlau nplaum kom tiv thaiv cov khib nyiab hlau los ntawm kev nyiam cov hlau nplaum.
Khaws cov hlau nplaum hauv qhov chaw nyiam;Thaum lub sij hawm, qee cov hlau nplaum uas khaws cia rau hauv qhov chaw repelling tuaj yeem poob lawv lub zog.
Khaws cov hlau nplaum alnico nrog "keepers," daim hlau siv los txuas cov ncej ntawm ntau cov hlau nplaum;Cov neeg khaws cia pab tiv thaiv cov hlau nplaum los ntawm kev demagnetized dhau sijhawm.
Khaws cov thawv ntim cia kom deb ntawm cov khoos phis tawj, VCRs, credit cards thiab txhua yam khoom siv lossis xov xwm uas muaj cov hlau nplaum sib nqus lossis microchips.
Kuj tseem khaws cov hlau nplaum muaj zog hauv thaj chaw nyob deb ntawm txhua qhov chaw uas tuaj yeem tuaj xyuas los ntawm cov tib neeg uas muaj pacemakers vim tias cov hlau nplaum yuav muaj zog txaus los ua rau lub pacemaker ua haujlwm tsis zoo.
Post lub sij hawm: Mar-09-2022
