Sintered NdFeB magnets e sa feleng, e le e 'ngoe ea lintho tsa bohlokoa ho khothaletsa thekenoloji ea sejoale-joale le tsoelopele ea sechaba, e sebelisoa haholo mafapheng a latelang: hard disk ea komporo, imaging ea nuclear magnetic resonance, likoloi tsa motlakase, phepelo ea matla a moea, li-motor tsa magnete tsa indasteri, lisebelisoa tsa elektroniki tsa bareki. (CD, DVD, liselefouno, li-audio, likopi, li-scanner, lik'hamera tsa video, lik'hamera, lihatsetsi, li-TV, li-air conditioner, joalo-joalo) le mechine ea makenete, theknoloji ea magnetic levitation, magnetic transmission le liindasteri tse ling.
Lilemong tse 30 tse fetileng, indasteri ea lefats'e ka bophara ea magnet e ntse e eketseha ho tloha ka 1985, ha indasteri e qala ho ntlafatsoa Japane, Chaena, Europe le United States, 'me thepa ea makenete e ntse e beha litlaleho tse ncha le ho eketsa palo ea liindasteri. mefuta ea lintho tse bonahalang le limaraka.Hammoho le ho atolosoa ha 'maraka, bahlahisi ba boetse ba eketseha,' me bareki ba bangata ba ts'oaroa ka mokhoa o ke keng oa qojoa pherekanong ena, ho ahlola melemo ea sehlahisoa joang?Mokhoa o pharaletseng oa ho ahlola: pele, ts'ebetso ea makenete;ea bobeli, boholo ba makenete;ea boraro, ho roala ka makenete.
Taba ea pele, tiisetso ea ts'ebetso ea makenete e tsoa taolong ea ts'ebetso ea tlhahiso ea lisebelisoa tse tala
1, Ho ea ka litlhoko tsa khoebo e etsang boemo bo phahameng kapa bohareng ba sehlopha sa NdFeB, sebopeho sa thepa e tala ho latela maemo a naha ho reka thepa e tala.
2, Ts'ebetso e tsoetseng pele ea tlhahiso e supa ka kotloloho boleng ba ts'ebetso ea makenete.Hona joale, mekhoa e tsoetseng pele ka ho fetisisa ke theknoloji ea Scaled Ingot Casting (SC), Hydrogen Crushing (HD) le theknoloji ea Airflow Mill (JM).
Lisebelisoa tse nyenyane tsa ho qhibilihisa li-vacuum induction (10kg, 25kg, 50kg) li nkeloe sebaka ke matla a maholo (100kg, 200kg, 600kg, 800kg) lisebelisoa tsa ho kenya li-vacuum, theknoloji ea SC (StripCasting) e nkile sebaka sa li-ingots tse kholo (li-ingots tse nang le botenya bo boholo ho feta 20). 40mm ka tsela e pholileng), theknoloji ea HD (Hydrogen Crushing) le leloala la phallo ea khase (JM) sebakeng sa leloala la mohlahare, leloala la disc, leloala la bolo (ho etsa phofshoana e metsi), ho netefatsa ho ts'oana ha phofo, 'me e loketse mohato oa mokelikeli. sintering le ntlafatso ea lijo-thollo.
3, Ka tjantjello ea matla a khoheli, China ke naha e le 'ngoe feela lefatšeng e amohelang mochini oa khatiso oa mehato e' meli, e nang le mochini o monyane oa khatello e otlolohileng bakeng sa tlhophiso le ho bopa ha quasi-isostatic qetellong, e leng e 'ngoe ea likarolo tsa bohlokoahali tsa sintered ea China. indasteri ea NdFeB.
Ea bobeli, tiiso ea boholo ba makenete e itšetlehile ka matla a ho sebetsa a fektheri
Ts'ebeliso ea 'nete ea limakete tse sa feleng tsa NdFeB e na le libopeho tse fapaneng, joalo ka chitja, cylindrical, cylindrical (e nang le lesoba le ka hare);sekwere, sekwere, kholomo e sekoere;tile, fan, trapezoid, polygon le libopeho tse fapaneng tse sa tloaelehang.
Sebopeho se seng le se seng sa limakete tse sa feleng se na le boholo bo fapaneng, 'me mokhoa oa tlhahiso o thata ho etsoa ka nako e le' ngoe.Ts'ebetso ea tlhahiso e akaretsang ke: likheo tsa Monghali tse kholo (tse kholo), kamora kalafo ea sintering le tempering, ebe ka ts'ebetso ea mochini (ho kenyeletsoa ho itšeha, ho otla) le ho sila, ho sebetsa ka holim'a sefahleho (ho roala), ebe ts'ebetso ea makenete, boleng ba bokaholimo le ts'ebetso. tlhahlobo ea ho nepahala ha dimensional, ebe joale magnetization, lipakete le feme.
1, ts'ebetso ea mochini e arotsoe ka mekhahlelo e meraro: (1) ts'ebetso ea ho seha: ho seha li-cylindrical, limmanete tse nang le sebopeho sa lisekoere ho pota-pota, sebopeho sa lisekoere, (2) ts'ebetso ea sebopeho: ho sebetsa ho pota-pota, limatlase tse lisekoere hore li be le sebopeho sa fan, sebopeho sa thaele kapa e nang le li-grooves kapa libopeho tse ling tse rarahaneng tsa limakete, (3) ts'ebetso ea ho phunya: ho sebetsana le limmete tse chitja, tse bopehileng joaloka lisekoere ho limmanete tsa cylindrical kapa sekoere.Mekhoa ea ts'ebetso ke: ts'ebetso ea ho sila le ho slicing, ts'ebetso ea ho itšeha ea EDM le ts'ebetso ea laser.
2, bokaholimo ba lisebelisoa tsa makenete tse sa feleng tsa NdFeB hangata li hloka boreleli le ho nepahala ho itseng, 'me bokaholimo ba makenete bo fanoeng bo hloka ts'ebetso ea ho sila.Mekhoa e tloaelehileng ea ho sila bakeng sa lisekoere tsa NdFeB tse sa feleng tsa magnet alloy ke ho sila ka sefofane, ho sila habeli, ho sila ka hare, ho sila ka ntle, joalo-joalo. e sebelisoa.
Magnet e tšoanelehang ha e hloke feela ho kopana le maemo a ts'ebetso, empa hape le taolo ea mamello ea dimensional e ama ts'ebeliso ea eona ka kotloloho.Tiisetso ea dimensional ka ho toba e itšetlehile ka matla a ho sebetsa a fektheri.Thepa ea ts'ebetso e lula e ntlafatsoa ka tlhokahalo ea moruo le 'maraka,' me mokhoa oa lisebelisoa tse sebetsang hantle le li-automation tsa indasteri ha se feela ho fihlela tlhoko e ntseng e eketseha ea bareki bakeng sa ho nepahala ha sehlahisoa, empa hape le ho boloka basebetsi le litšenyehelo, ho etsa hore e be le tlholisano ho feta. marakeng.
Hape, boleng ba plating ea makenete bo supa ka kotloloho bophelo ba ts'ebeliso ea sehlahisoa
Ka liteko, makenete ea 1cm3 sintered NdFeB e tla silafatsoa ke oxidation haeba e siuoa moeeng ho 150 ℃ matsatsi a 51.Tharollong e fokolang ea asiti, ho ka etsahala hore e ka senyeha.E le ho etsa hore li-magnets tsa NdFeB li tšoarelle nako e telele, ho hlokahala hore ho be le bophelo ba tšebeletso ea lilemo tse 20-30.
E tlameha ho phekoloa ka phekolo ea anti-corrosion ho hanela ho bola ha makenete ka mecha ea phatlalatso e senyang.Hajoale, limmanete tsa sintered NdFeB hangata li koahetsoe ka tšepe ea tšepe, electroplating + lik'hemik'hale tsa plating, ho roala ka electrophoretic le kalafo ea phosphate ho thibela makenete ho tsoa sebakeng se senyang.
1, ka kakaretso galvanized, nickel + koporo + nickel plating, nickel + koporo + lik'hemik'hale nickel plating dithulaganyo tse tharo, litlhoko tse ling tšepe plating, ka kakaretso sebelisoa ka mor'a nickel plating ebe joale tse ling tse tšepe plating.
2, maemong a mang a khethehileng a tla boela a sebelise phosphating: (1) ka lihlahisoa tsa makenete tsa NdFeB ka lebaka la thekiso, ho boloka nako e telele haholo 'me ha e hlake ha mokhoa o latelang oa phekolo ea holim'a metsi, tšebeliso ea phosphating e bonolo le e bonolo;(2) ha makenete e hloka epoxy glue bonding, penta, joalo-joalo, sekhomaretsi, pente le lintho tse ling tsa epoxy organic adhesion e hloka ts'ebetso e ntle ea ho kenella ha substrate.Phosphating process e ka ntlafatsa bokaholimo ba matla a makenete a ho kenella.
3, ho roala ka electrophoretic e se e le e 'ngoe ea theknoloji e sebelisoang haholo e thibelang kutu.Hobane ha e na tlamahano e ntle feela le bokaholimo ba porous magnet, empa hape e na le ho hanyetsa ho bola ha letsoai, acid, alkali, joalo-joalo, anti-corrosion e ntle haholo.Leha ho le joalo, ho hanyetsa ha eona mongobo le mocheso ho fokola ha ho bapisoa le ho roala ha spray.
Bareki ba ka khetha ho roala ho ea ka litlhoko tsa bona tsa ho sebetsa sehlahisoa.Ka katoloso ea sebaka sa ts'ebeliso ea makoloi, bareki ba na le litlhoko tse phahameng tsa ho hanyetsa kutu ea NdFeB.Teko ea HAST (eo hape e bitsoang tlhahlobo ea PCT) ke ho leka ho hanyetsa kutu ea limmete tse sa feleng tsa NdFeB tlas'a tikoloho e mongobo le mocheso o phahameng.
Mme moreki a ka ahlola joang hore na plating e fihlela litlhoko kapa che?Sepheo sa tlhahlobo ea sefafatsi sa letsoai ke ho etsa tlhahlobo e potlakileng ea ho thibela ho bola ho limmanete tsa NdFeB tse sirelelitsoeng tseo bokaholimo ba tsona bo kentsoeng ka anti-corrosion coat.Qetellong ea tlhahlobo, sampole e ntšoa ka phaposing ea teko, e omisitsoe, 'me e shejoa ka mahlo kapa khalase e hōlisitsoeng ho bona hore na ho na le matheba holim'a sampuli, boholo ba sebaka sa sebaka sa sebaka se fetoha.
Nako ea poso: Jan-06-2023
