Okwangoku, izinto eziqhelekileyo zemagnethi ezisisigxina yimagnethi ye-ferrite,NdFeb umazibuthe, Imagnethi ye-SmCo, Alnico umazibuthe, umazibuthe werabha njalo njalo.Ezi kulula ukuzithenga, kunye nokusebenza okuqhelekileyo (kungekhona imigangatho ye-ISO) ongakhetha kuyo.Nganye kwezi magnethi zingentla zineempawu zayo kunye nemimandla eyahlukeneyo yesicelo, ukwaziswa ngokufutshane ngolu hlobo lulandelayo.
Imagnethi yeNeodymium
I-NdFeb yimagnethi esetyenziswa ngokubanzi kwaye iphuhla ngokukhawuleza.
Imagnethi yeNeodymium isetyenziswa ngokubanzi ukusuka ekuyilweni ukuza kuthi ga ngoku, kodwa nangaphezulu kweminyaka engama-20.Ngenxa yeempawu zayo eziphakamileyo zamagnetic kunye nokucutshungulwa ngokulula, kwaye ixabiso aliphezulu kakhulu, ngoko intsimi yesicelo iyanda ngokukhawuleza.Okwangoku, i-NdFeb yorhwebo, imveliso yayo yamandla kazibuthe inokufikelela kwi-50MGOe, kwaye ngamaxesha angama-10 e-ferrite.
I-NdFeb ikwangumgubo wemveliso yesinyithi kwaye icutshungulwa ngendlela efanayo nemagnethi ye-samarium cobalt.
Okwangoku, ubushushu bokusebenza beNdFeb bumalunga ne-180 degrees Celsius.Kwizicelo ezinzima, kucetyiswa ngokubanzi ukuba ungadluli kwi-140 degrees Celsius.
I-NdFeb idleka ngokulula.Ngoko ke, uninzi lweemveliso ezigqityiweyo kufuneka zifakwe kwi-electroplated okanye zifakwe.Unyango oluqhelekileyo lomphezulu lubandakanya i-nickel plating (nickel-copper nickel), i-zinc plating, i-aluminium plating, i-electrophoresis, njl. Ukuba usebenza kwindawo evaliweyo, ungasebenzisa kwakhona i-phosphating.
Ngenxa yeempawu eziphezulu zemagneti ze-NdFeb, ngamaxesha amaninzi, isetyenziselwa ukubuyisela ezinye izinto zombane ukunciphisa umthamo weemveliso.Ukuba usebenzisa iimagnethi ze-ferrite, ubungakanani befowuni yeselula yangoku, ndiyoyika ukuba akukho ngaphantsi kwesiqingatha sesitena.
Ezi magnethi zimbini zingentla zinokusebenza ngcono.Ke ngoko, ukunyamezela komgangatho wemveliso kungcono kakhulu kunoko kwe-ferrite.Kwiimveliso eziqhelekileyo, ukunyamezela kunokuba (+/-) 0.05mm.
Samarium Cobalt umazibuthe
I-Samarium cobalt magnets, izithako eziphambili ziyi-samarium kunye ne-cobalt.Ngenxa yokuba ixabiso lezinto eziphathekayo libiza kakhulu, imagnethi ye-samarium cobalt yenye yezona ntlobo zibiza kakhulu.
Imveliso yamandla kazibuthe yemagnethi ye-samarium cobalt okwangoku inokufikelela kwi-30MGOe okanye nangaphezulu.Ukongeza, iimagnethi ze-samarium cobalt zinyanzeliswa kakhulu kwaye zixhathisa ubushushu obuphezulu, kwaye zinokusetyenziswa kumaqondo obushushu ukuya kuthi ga kwi-350 degrees Celsius.Ke ngoko ayinakuthathelwa indawo kwizicelo ezininzi
Imagnethi ye-cobalt yaseSamarium yeyemveliso yesinyithi somgubo.Abavelisi ngokubanzi ngokobukhulu kunye nokumila kweemfuno zemveliso egqityiweyo, batshiswe kwisikwere esingenanto, baze basebenzise i-blade yedayimane ukusika ubungakanani bemveliso egqityiweyo.Ngenxa yokuba i-samarium cobalt iqhuba umbane, inokunqunyulwa ngomgca.Ngokwethiyori, i-cobalt ye-samarium inokunqunyulwa ibe yimo enokuthi inqunywe ngokulandelelana, ukuba i-magnetization kunye nobukhulu obukhulu akuqwalaselwa.
Imagnethi ye-cobalt yaseSamarium inokumelana nokugqwesa okugqwesileyo kwaye ayifuni ngokubanzi i-anti-corrosion plating okanye ukutyabeka.Ukongeza, imagnethi ye-cobalt ye-samarium i-brittle, kunzima ukwenza iimveliso ezinobungakanani obuncinci okanye iindonga ezincinci.
Alnico umazibuthe
I-Alnico umazibuthe ineendlela ezimbini ezahlukeneyo zokuphosa kunye nokuphosa.Imveliso yasekhaya iphosa ngakumbi iAlnico.Imveliso yamandla kazibuthe ye-Alnico umazibuthe inokufikelela kwi-9MGOe, kwaye inophawu olukhulu lolo lokumelana nobushushu obuphezulu, ubushushu obusebenzayo linokufikelela kuma-550 degrees Celsius.Nangona kunjalo, i-Alnico umazibuthe ilula kakhulu ukwenza i-demagnetize kwintsimi yamagnetic eguqulweyo.Ukuba utyhala iipali zemagnethi ezimbini zeAlnico kwicala elinye (iiN ezimbini okanye ii-S ezimbini) kunye, intsimi yenye yeemagnethi iya kurhoxiswa okanye ibuyiselwe umva.Ngoko ke, ayifanelekanga ukusebenza kwintsimi yamagnetic inverted (njengemoto).
I-Alnico inobulukhuni obuphezulu kwaye inokucolwa kunye nokusikwa kocingo, kodwa ngexabiso eliphezulu.Ukunikezelwa ngokubanzi kweemveliso ezigqityiweyo, kukho iindidi ezimbini zokugaya okulungileyo okanye ukungasila.
Umazibuthe weFerrite / umazibuthe weCeramic
I-Ferrite luhlobo lwemathiriyeli kazibuthe engeyiyo eyentsimbi, ekwabizwa ngokuba ziiseramiki zemagnethi.Sithatha unomathotholo oqhelekileyo ngokwahlukileyo, kunye nemagnethi yophondo kuyo i-ferrite.
Iimpawu zemagnethi ze-ferrite aziphezulu, imveliso yamandla kazibuthe yangoku (enye yeeparamitha zokulinganisa ukusebenza kwemagnethi) inokwenza kuphela i-4MGOe ephezulu.Izinto eziphathekayo zinenzuzo enkulu yokuba zingabizi.Okwangoku, isasetyenziswa ngokubanzi kwiinkalo ezininzi
I-Ferrite yi-ceramic.Ke ngoko, ukusebenza komatshini kuyafana nokwekeramics.Iimagnethi zeFerrite ziyabumba, ziphuma ngaphandle.Ukuba kuyimfuneko ukucutshungulwa, ukugaya okulula kuphela kunokuqhutywa.
Ngenxa yobunzima bokucutshungulwa komatshini, ngoko uninzi lwemilo ye-ferrite ilula, kwaye ukunyamezela ubungakanani kukhulu.Iimveliso zemilo yesikwere zilungile, zinokusilwa.Isetyhula, ngokuqhelekileyo kusila iinqwelomoya ezimbini kuphela.Okunye ukunyamezelwa kwe-dimensional kunikwa njengepesenti yemilinganiselo yegama.
Ngenxa yokuba imagnethi ye-ferrite isetyenziswe amashumi eminyaka, abavelisi abaninzi banemisesane esele yenziwe, izikwere kunye nezinye iimveliso zeemilo eziqhelekileyo kunye nobukhulu bokukhetha.
Ngenxa yokuba i-ferrite iyinto ye-ceramic, akukho ngxaki yokubola.Iimveliso ezigqityiweyo azifuni unyango olungaphezulu okanye ukugquma okunje nge-electroplating.
Ixesha lokuposa: Nov-22-2021