Iimagnethi zeemoto ze-servo ziqinisekisa iimotor ze-servo ukwenza ulawulo oluchanekileyo kunye nokuchaneka kwesikhundla, kwaye unokuguqula umqondiso wombane kwi-torque kunye nesantya sokuqhuba into yokulawula. Isantya se-rotor se-servo motor silawulwa ngumqondiso wegalelo kwaye sinokusabela ngokukhawuleza.
Ukusukela oko isebe le-Indramat le-Rexroth lasungula ngokusesikweni i-MAC yemagnethi esisigxina ye-AC servo motor kunye nenkqubo yokuqhuba kumboniso worhwebo wase-Hannover ngo-1978, oku kuphawula ukuba esi sizukulwana sitsha sobuchwephesha be-AC servo singene kwinqanaba lokwenziwa. Phakathi no-1980 ekupheleni, inkampani nganye yayinoluhlu olupheleleyo lweemveliso. Imarike yonke ye-servo iguqukela kwiinkqubo ze-AC. Uninzi lweenkqubo ze-servo zombane ezisebenza kakhulu zisebenzisa imagnethi esisigxina ye-AC servo motor, kwaye umqhubi wolawulo uninzi lwamkela inkqubo ye-servo yendawo yedijithali ngokukhawuleza nangokuchanekileyo. Kukho abavelisi abaqhelekileyo abafana no-Siemens,Kollmorgen, iPanasonic,Yaskawa, njl.
Ngenxa yomsebenzi ochanekileyo we-servo motor, inemfuno engqongqo malunga nokuchaneka kokusebenza kunye nokusebenza okuphezulu, okuxhomekeke ikakhulu kumgangatho wemagnethi ye-Neodymium yeemoto ze-servo. Ngenxa yoluhlu olubanzi lweepropathi zemagneti eziphezulu, i-Neodymium umazibuthe yenza ukuba iimotor ze-servo zenzeke ngobunzima obuphantsi kunye nobukhulu obuncinci xa kuthelekiswa nezixhobo zemagneti zemveli, njengemagnethi yeFerrite, Alnico okanye iSmCo.
Kwimagnethi yeemoto ze-servo, okwangoku i-Horizon Magnetics ivelisa uthotho lwamabanga aphezulu emagnethi ye-Neodymium, efana ne-H, SH, UH, EH kunye ne-AH eneempawu ezintathu ezilandelayo:
1.High intrinsic coercivity Hcj: phezulu ukuya >35kOe (>2785 kA/m) eyonyusa uxhathiso lwemagnetic demagnetizing kwaye emva koko i-servo motor ukusebenza uzinzo
I-2.I-coefficients ephantsi yokuguqulwa kweqondo lokushisa: ephantsi ukuya ku-α (Br)< -0.1% /ºC kunye ne-β (Hcj)< -0.5% /ºC eyandisa ukuzinza kobushushu bemagnethi kwaye iqinisekisa iimotor ze-servo ukuba zisebenze ngokuzinza okuphezulu
3. Ukwehla kobunzima obuphantsi: ngaphantsi ukuya kwi-2 ~ 5mg/cm2 kwimeko yovavanyo lwe-HAST: 130ºC, 95% RH, 2.7 ATM, iintsuku ezingama-20 ezonyusa ukuxhathisa kwemagnethi ukuze kwandiswe ixesha lobomi beenjini ze-servo
Enkosi kumava ethu atyebileyo ekuboneleleni abavelisi beemoto ze-servo ngoomazibuthe, i-Horizon Magnetics iyaqonda ukuba imagnethi ye-servo motor idinga uvavanyo olubanzi lokuqinisekisa umgangatho wayo ongqongqo, onjedemagnetization curveskwiqondo lokushisa eliphezulu ukubona ukusebenza kozinzo, i-PCT kunye ne-SST ukufunda umgangatho we-coating layers, i-HAST ukufumana ukwehla kobunzima, ukufudumeza kwiqondo lokushisa eliphezulu ukuze ufunde izinga lokulahlekelwa okungaguqukiyo, ukuphambuka kwemagnethi ukunciphisa i-motor jitter, njl.
