Magnetic zvinhu zvinogona kuiswa muzvikamu zviviri: isotropic magineti uye anisotropic magineti:
Isotropic magineti anoratidza akafanana magineti zvivakwa munzvimbo dzese uye anogona kupihwa magineti mune chero nzira.
Anisotropic magineti anoratidza akasiyana magineti emhando munzira dzakasiyana, uye ane yaanofarira kutungamira kune yakakwana magineti kuita, inozivikanwa seyekutarisisa nzira.
Anowanzo anisotropic magineti anosanganisiraSintered NdFeBuyeSintered SmCo, izvo zvese zviri zviviri zvakaoma magineti zvinhu.
Oriental idanho rakakosha mukugadzira sintered NdFeB magineti
Iyo magineti yemagineti inotangira kubva kune magineti kurongeka (apo magineti ega ega anorongeka mune imwe nzira). Sintered NdFeB inoumbwa nekumanikidza magineti poda mukati me molds. Maitiro acho anosanganisira kuisa magineti poda muforoma, kushandisa simba remagineti uchishandisa electromagnet, uye panguva imwe cheteyo kuita dzvinyiriro nemuchina kuti uenzanise iyo nyore magnetization axis yehupfu. Mushure mekudzvanya, iyo miviri yakasvibira inobviswa magineti, inobviswa kubva muforoma, uye izvo zvinokonzeresa zvivharo zvine yakanyatso tariswa magineti nzira inowanikwa. Aya ma blanks anozochekwa kuita zviyero zvakatemwa kugadzira yekupedzisira magineti simbi zvigadzirwa zvinoenderana nezvinodiwa nevatengi.
Powder orientation inzira yakakosha mukugadzira yakakwirira-inoshanda NdFeB magineti echigarire. Hunhu hwekutarisa panguva yechikamu chekugadzira chisina chinhu chinopesvedzerwa nezvinhu zvakasiyana, zvinosanganisira kusimba kwemunda, chimiro cheupfu uye saizi, nzira yekugadzira, hukama hwenzvimbo yekutarisa uye kuumba kudzvanywa, uye yakasununguka density yehupfu hwakanangana.
Iyo magineti skew inogadzirwa mumashure-ekugadzirisa nhanho ine imwe mhedzisiro pakugoverwa kwemagineti yemagineti.
Magnetization ndiyo nhanho yekupedzisira yekupa magineti kuneSintered NdFeB.
Mushure mekucheka magineti blanks kune yavanoda zviyero, ivo vanopinda maitiro senge electroplating kudzivirira kuora uye kuve iwo magineti ekupedzisira. Nekudaro, panguva ino, magineti haaratidzi ekunze magineti uye anoda magnetization kuburikidza nemaitiro anozivikanwa se "charging magnetism."
Midziyo inoshandiswa kuita magineti inonzi magnetizer, kana kuti magnetizing muchina. Iyo magnetizer inotanga kuchaja capacitor ine yakakwira DC voltage (kureva, inochengeta simba), yozoiburitsa kuburikidza nekoiri (magnetizing fixture) ine kushomeka kwakanyanya. Iyo peak ikozvino ye discharge pulse inogona kunge yakakwira zvakanyanya, inosvika makumi ezviuru zveamperes. Uku kupuruzira kwazvino kunoburitsa simba remagineti mukati meiyo magnetizing fixture, iyo inogadzika magineti akaiswa mukati.
Tsaona dzinogona kuitika panguva yemagnetization process, senge isina kukwana saturation, kuputika kwematanda emagnetizer, uye kutsemuka kwemagineti.
Kuzara kusina kukwana kunonyanya kukonzerwa nekusakwana kwekuchaja voltage, uko iyo magineti inogadzirwa necoil haisviki 1.5 kusvika 2 nguva yekuzara magineti yemagneti.
Kune akawanda magineti emagetsi, magineti ane gobvu yekumisikidza nzira anonetsawo kuzara zvizere. Izvi zvinodaro nekuti chinhambwe chiri pakati pemapango ekumusoro neazasi emagnetizer chakakurisa, zvichikonzera kusakwana kwesimba remagineti kubva pamatanda kuti riite rakavharika rakavharika redunhu. Nekuda kweizvozvo, iyo magnetization process inogona kutungamirira kune kusagadzikana magineti mapango uye kusakwana kwesimba remunda.
Kutsemuka kwemapango emagnetizer kunonyanya kukonzerwa nekumisa voltage yakawandisa, ichipfuura yakachengeteka voltage muganho wemuchina wemagnetizing.
Magineti asina unsaturated kana magineti akaiswa demagnetized zvishoma anonyanya kunetsa kuzara nekuda kwekutanga kusagadzikana kwemagineti domains. Kuti uwane saturation, kupokana kubva pakutamiswa uye kutenderera kwemadomasi aya kunoda kukundwa. Nekudaro, kana magineti isina kuzara zvizere kana kuti yasara magineti, pane matunhu ereverse magineti mukati mayo. Ingave ichiita magineti kumberi kana kumashure, dzimwe nzvimbo dzinoda reverse magnetization, zvichidikanwa kukunda kwesimba rekumanikidza remukati mumatunhu aya. Naizvozvo, simba remagineti rakasimba kupfuura dzidziso inodiwa inodiwa kune magnetization.
Nguva yekutumira: Aug-18-2023