Imagnethi esisigxina ye-Sintered NdFeB, njengenye yezinto ezibalulekileyo ukukhuthaza itekhnoloji yeli xesha kunye nenkqubela phambili yentlalo, zisetyenziswa ngokubanzi kule mimandla ilandelayo: ihard disk yekhompyuter, i-nuclear magnetic resonance imaging, izithuthi zombane, ukuveliswa kwamandla omoya, iimotor zemagnethi ezisisigxina, i-electronics yabathengi. (i-CD, iDVD, iiselfowuni, iaudio, iikopi, iiskena, iikhamera zevidiyo, iikhamera, iifriji, iiseti zeTV, ii-air conditioners, njl.njl.) kunye noomatshini bemagnethi, ubuchwepheshe bemagnetic levitation, transmission magnetic kunye namanye amashishini.
Kwiminyaka engama-30 edlulileyo, ishishini lehlabathi elisisigxina lemagnethi liye lakhula ukususela ngo-1985, xa ishishini laqala ukuba nemizi-mveliso eJapan, eChina, eYurophu naseUnited States, kwaye iipropathi zemagneti beziseta iirekhodi ezintsha kunye nokwandisa inani leemveliso. iintlobo zezinto eziphathekayo kunye namabanga.Kanye kunye nokwandiswa kweemarike, abavelisi bayanda, kwaye abathengi abaninzi ngokuqinisekileyo babanjwe kule ngxabano, indlela yokugweba ukufaneleka kwemveliso?Eyona ndlela ibanzi yokugweba: okokuqala, ukusebenza kwemagnethi;okwesibini, ubukhulu bemagnethi;okwesithathu, ukutyabeka umazibuthe.
Okokuqala, isiqinisekiso sokusebenza kwemagnethi sivela kulawulo lwenkqubo yokuvelisa izinto eziluhlaza
1, Ngokuphathelele kwiimfuno zeshishini lokwenziwa kwebakala eliphezulu okanye eliphakathi okanye elisezantsi le-sintered NdFeB, ukwakheka kwezinto ekrwada ngokomgangatho wesizwe wokuthenga izinto ekrwada.
2, Inkqubo yemveliso ephucukileyo imisela ngokuthe ngqo umgangatho wokusebenza kwemagnethi.Okwangoku, ubugcisa obuphezulu kakhulu bubuchwepheshe be-Scaled Ingot Casting (SC), i-Hydrogen Crushing (HD) iteknoloji kunye ne-Airflow Mill (JM) ubuchwepheshe.
Iziko ezincinci zokunyibilikisa zokunyibilikisa (10kg, 25kg, 50kg) zithathelwe indawo ngumthamo omkhulu (100kg, 200kg, 600kg, 800kg) itekhnoloji yokufakwa kwevacuum, iteknoloji yeSC (StripCasting) ithe chu kancinci yathatha indawo yee-ingots ezinkulu (ii-ingots ezinobukhulu obungaphezulu kwama-20). I-40mm kwicala lokupholisa), iteknoloji ye-HD (i-Hydrogen Crushing) kunye ne-gas flow mill (JM) endaweni ye-jaw crusher, i-disc mill, i-ball mill (ukwenza umgubo omanzi), ukuqinisekisa ukufana komgubo, kwaye ihambelana nesigaba solwelo. i-sintering kunye nokucocwa kweenkozo.
3 Ishishini leNdFeB.
Okwesibini, isiqinisekiso sobungakanani bemagnethi sixhomekeke kumandla okusebenza komzi-mveliso
Ukusetyenziswa kwangempela kweemagnethi ezisisigxina ze-NdFeB zineemilo ezahlukeneyo, ezinje ngerawundi, i-cylindrical, i-cylindrical (enomngxuma ongaphakathi);isikwere, isikwere, ikholamu yesikwere;ithayile, fan, trapezoid, polygon kunye neemilo ezahlukeneyo ezingaqhelekanga.
Imilo nganye yeemagnethi esisigxina inobukhulu obahlukeneyo, kwaye inkqubo yemveliso inzima ukuyilwa ngexesha elinye.Inkqubo yemveliso jikelele yile: UMnu. imveliso enkulu (ubungakanani obukhulu) izithuba, emva kokucoca kunye nokuthambisa unyango, emva koko ngokulungiswa koomatshini (kubandakanywa nokusika, ukubethelwa) kunye nokusila, ukugubungela umphezulu (ukwaleka) ukusetyenzwa, emva koko ukusebenza kwemagnethi, umgangatho womphezulu kunye Uvavanyo lokuchaneka komgangatho, kunye nemagnetization, ukupakishwa kunye nefektri.
1, ukucutshungulwa koomatshini kwahlulahlulwe ngokweendidi ezintathu: (1) ukusika ukusetyenzwa: ukusika isilinda, iimagnethi ezimilise okwesikwere zibe zingqukuva, ezimile okwesikwere, (2) ukusetyenzwa kwemilo: ukusetyenzwa komjikelo, imagnethi yesikwere ibe yifan-shape, emilise ithayile okanye ezinegrooves okanye ezinye iimilo ezintsonkothileyo zoomazibuthe, (3) ukubethelwa kwemagnethi: ukusetyenzwa kungqukuva, iimagnethi ezimilise okwesikweri zibe ziimagnethi ezimile okwesilinda.Iindlela zokucutshungulwa zezi: ukugaya kunye ne-slicing processing, i-EDM ye-cutting processing kunye ne-laser processing.
2, Umphezulu we-sintered NdFeB izakhi zemagnethi ezisisigxina ngokubanzi zifuna ukuguda kunye nokuchaneka okuthile, kunye nomphezulu wemagnethi ohanjiswe ngeemfuno ezingenanto zokusetyenzwa komphezulu wokusila.Iindlela eziqhelekileyo zokusila kwi-square NdFeB i-alloy yemagnethi esisigxina yi-plane yokusila, i-double end grinding, i-double end grinding, i-grinding yangaphandle, i-Cylindrical isetyenziswa ngokuqhelekileyo i-coreless grinding, i-double end grinding, njl. iyasetyenziswa.
Umazibuthe ofanelekileyo awufuni nje ukuhlangabezana nomgangatho wokusebenza, kodwa nolawulo lonyamezelo olune-dimensional luchaphazela ngqo ukusetyenziswa kwayo.Isiqinisekiso sobukhulu ngokuthe ngqo sixhomekeke kumandla okusebenza komzi-mveliso.Izixhobo zokulungisa zihlaziywa rhoqo kunye nemfuno yezoqoqosho kunye nemarike, kwaye umkhwa wezixhobo ezisebenza ngakumbi kunye ne-automation ye-industrial ayikona nje ukuhlangabezana nemfuno ekhulayo yabathengi ukuchaneka kwemveliso, kodwa kunye nokugcina abasebenzi kunye neendleko, okwenza kube nokhuphiswano ngakumbi imarike.
Kwakhona, umgangatho we-magnet plating umisela ngokuthe ngqo ubomi bokusetyenziswa kwemveliso
Ngokomvavanyo, i-1cm3 sintered NdFeB umazibuthe iya konakala yi-oxidation ukuba ishiywe emoyeni kwi-150 ℃ kangangeentsuku ezingama-51.Kwisisombululo se-asidi esibuthathaka, kunokwenzeka ukuba sidle.Ukuze wenze iimagnethi ezisisigxina ze-NdFeB zisebenze, kufuneka ubomi benkonzo obungama-20-30 eminyaka.
Kufuneka iphathwe ngonyango lokunqanda ukubola ukuxhathisa ukubola kwemagnethi ngamajelo eendaba adlayo.Okwangoku, imagnethi ye-NdFeB ene-sintered idla ngokugqunywa ngentsimbi, i-electroplating + chemical plating, i-electrophoretic coating kunye nonyango lwephosphate ukukhusela umazibuthe kwindawo engcolisayo.
I-1, ngokubanzi, i-galvanized, i-nickel + yobhedu + i-nickel plating, i-nickel + yobhedu + imichiza ye-nickel yokufaka iinkqubo ezintathu, ezinye iimfuno zokubeka isinyithi, zisetyenziswa ngokubanzi emva kokufakwa kwe-nickel kunye nokunye ukufakwa kwesinyithi.
I-2, kwezinye iimeko ezikhethekileyo nazo ziya kusebenzisa i-phosphating: (1) kwiimveliso zemagneti ze-NdFeB ngenxa yokuguqulwa, ukugcinwa kwexesha elide kakhulu kwaye akucaci xa indlela yokunyanga komhlaba elandelayo, ukusetyenziswa kwe-phosphating kulula kwaye kulula;2Inkqubo ye-Phosphating inokuphucula umphezulu wesakhono semagnethi sokungena.
I-3, ukutyabeka kwe-electrophoretic kuye kwaba yenye yetekhnoloji yonyango lomphezulu osetyenziswa ngokubanzi.Ngenxa yokuba ayinabo nje ukudityaniswa okufanelekileyo kunye nomphezulu wemagnethi ovuzayo, kodwa inokumelana nokugqwala kwisitshizi setyuwa, iasidi, ialkali, njl., anti-corrosion ebalaseleyo.Nangona kunjalo, ukumelana kwayo nokufuma kunye nobushushu akubikho kakuhle xa kuthelekiswa nokugquma kokutshiza.
Abathengi banokukhetha ukutyabeka ngokweemfuno zabo zokusebenza kwemveliso.Ngokwandiswa kwebala lesicelo semoto, abathengi baneemfuno eziphezulu zokuxhathisa umhlwa kwe-NdFeB.Uvavanyo lwe-HAST (ekwabizwa ngokuba luvavanyo lwe-PCT) kukuvavanya ukuxhathisa kokutya kweemagnethi ezisisigxina ze-NdFeB phantsi kokufuma kunye nokusingqongileyo kobushushu obuphezulu.
Kwaye umthengi unokugweba njani ukuba i-plating iyahlangabezana neemfuno okanye hayi?Injongo yovavanyo lokutshiza ityuwa kukwenza uvavanyo olukhawulezayo lokuchasana nomhlwa kwimagnethi ye-NdFeB ene-sintered umphezulu wayo oye wanyangwa nge-anti-corrosion coating.Ekupheleni kovavanyo, isampulu iyakhutshwa kwigumbi lovavanyo, yomiswe, kwaye ijongwe ngamehlo okanye iglasi yokukhulisa ukuze kubonwe ukuba kukho amabala kumphezulu wesampulu, ubungakanani bebhokisi yendawo yokutshintsha umbala.
Ixesha lokuposa: Jan-06-2023
