Hoo e ka bang ts'ebetso e 'ngoe le e' ngoe ea kopano e ka etsoa ka litsela tse 'maloa.Kgetho eo moetsi kapa mokopanyi a e khethang bakeng sa liphello tse molemo ka ho fetisisa hangata ke e lumellanang le theknoloji e tiisitsoeng ho kopo e itseng.
Brazing ke ts'ebetso e 'ngoe e joalo.Brazing ke ts'ebetso ea ho kopanya tšepe eo likarolo tse peli kapa ho feta tsa tšepe li kopantsoeng ka ho qhibiliha tšepe ea ho tlatsa le ho e phalla ka har'a motsoako.Tšepe ea ho tlatsa e na le ntlha e tlaase ea ho qhibiliha ho feta likarolo tsa tšepe tse haufi.
Mocheso oa ho chesoa o ka fanoa ka litoche, libōpi kapa li-coils tsa induction.Nakong ea ho kenya letsoho, coil ea induction e etsa hore ho be le matla a khoheli a chesang substrate ho qhibilihisa tšepe ea ho tlatsa.Induction brazing e ipaka e le khetho e ntle ka ho fetisisa bakeng sa palo e ntseng e eketseha ea likopo tsa kopano.
"Induction brazing e bolokehile haholo ho feta toche, e potlakile ho feta ho besa sebōpi, 'me e phetoa ho feta ka bobeli," ho boletse Steve Anderson, molaoli oa mahlale a masimong le liteko ho Fusion Inc., mohokahanyi ea lilemo li 88 oa Willoughby, Ohio Said, o ipabola ka mekhoa e fapaneng ea kopano, ho kenyelletsa le brazing.Ha ho bapisoa le mekhoa e meng e 'meli, sohle seo u se hlokang ke motlakase o tloaelehileng. ”
Lilemong tse 'maloa tse fetileng, Fusion e ile ea hlahisa mochine o ikemetseng oa liteishene tse tšeletseng bakeng sa ho kopanya li-carbide burrs tse 10 bakeng sa ho sebetsa ka tšepe le ho etsa lithulusi.
Anderson oa hlalosa: “Roboto e nang le li-axis tse ’nè e nka mohele tereing, e e nehelana ka mochine o ntšang solder paste, ebe e o kenya ka sehlaheng sa gripper.Induction brazing e etsoa ka khoele ea motlakase e pota-potiloeng ka holimo ho pota-pota likarolo tse peli 'me e tlisa tšepe ea silevera ho mocheso oa liquidus oa 1,305 F. Ka mor'a hore karolo ea burr e lokisoe le ho pholile, e ntšoa ka chute ea ho ntša metsi ebe e bokelloa bakeng sa ts'ebetso e tsoelang pele.
Tšebeliso ea li-induction brazing bakeng sa kopano e ntse e eketseha, haholo-holo hobane e etsa hore ho be le kamano e matla pakeng tsa likarolo tse peli tsa tšepe le hobane e atleha haholo ho kopanya lisebelisoa tse sa tšoaneng.Matšoenyeho a tikoloho, theknoloji e ntlafetseng, le likopo tse sa tloaelehang li boetse li qobella baenjiniere ba tlhahiso ea lihlahisoa hore ba shebisise ka ho hlaka ho induction brazing.
Induction brazing e bile teng ho tloha lilemong tsa bo-1950, le hoja khopolo ea ho futhumatsa mocheso (ho sebelisa electromagnetism) e ile ea sibolloa lilemo tse fetang lekholo pele ke setsebi sa rasaense oa Brithani Michael Faraday. Litoche tsa letsoho e ne e le mohloli oa pele oa mocheso oa ho chesa, o lateloa ke libōpi lilemong tsa bo-1920. Nakong ea Ntoa ea II ea Lefatše, mekhoa e entsoeng ka sebōpi e ne e atisa ho sebelisoa ho etsa likarolo tse ngata tsa tšepe le litšenyehelo tse fokolang.
Tlhokahalo ea bareki bakeng sa moea o pholisang lilemong tsa bo-1960 le bo-1970 e thehile likopo tse ncha bakeng sa brazing ea induction.
"Ho fapana le ho hotetsa ha toche, ho besa ha motlakase ha ho kopane 'me ho fokotsa kotsi ea ho chesa haholo," ho bolela Rick Bausch, mookameli oa thekiso oa Ambrell Corp., inTEST.temperature.
Ho ea ka Greg Holland, mookameli oa thekiso le oa ts'ebetso ho eldec LLC, mokhoa o tloaelehileng oa brazing oa induction o na le likarolo tse tharo.Tsena ke motlakase, hlooho e sebetsang e nang le coil ea induction le tsamaiso e pholileng kapa e pholileng.
Motlakase o hokahane le hlooho ea mosebetsi 'me li-coil li tloaelehile ho lekana ho pota-potile lenonyeletso.Li-inductors li ka etsoa ho tloha melamu e tiileng, likhoele tse tenyetsehang, li-billet tse entsoeng ka mochine, kapa 3D e hatisitsoeng ho tloha ho li-alloys tsa koporo tse phofo. ho bokellana ka har'a li-coil ka lebaka la ho ba teng khafetsa ha nako e fapaneng le phetisetso e sa sebetseng ea mocheso.
Holland o hlalosa hore: “Ka linako tse ling mochini o behoang holim’a khoele ho matlafatsa matla a khoheli sebakeng se le seng kapa ho feta moo mateanong.” Li-concentrator tse joalo e ka ba tsa mofuta oa laminate, tse entsoeng ka litšepe tse tšesaane tsa motlakase tse khomaretsoeng hammoho, kapa li-tubes tsa ferromagnetic tse nang le phofshoana ea ferromagnetic le li-dielectric bond tse hatelletsoeng tlas'a khatello e matla.Sebelisa leha e le efe Molemo oa concentrator ke hore e fokotsa nako ea potoloho ka ho tlisa matla a mangata libakeng tse itseng tsa lenonyeletso ka potlako, ha libaka tse ling li ntse li pholile. "
Pele o beha likarolo tsa tšepe bakeng sa brazing ea induction, opareitara o hloka ho beha hantle maqhubu le maemo a matla a sistimi.
Lisebelisoa tsa matla hangata li khona ho hlahisa li-kilowatt tse makholo tsa motlakase. Leha ho le joalo, ho roala karolo ea boholo ba palema ka metsotsoana e 10 ho isa ho e 15 ho hloka feela 1 ho 5 kilowatts. Ha ho bapisoa, likarolo tse kholo li ka hloka 50 ho 100 kilowatts ea matla le ho nka metsotso e 5 ho senya.
"Joaloka molao o akaretsang, lisebelisoa tse nyane li sebelisa matla a fokolang, empa li hloka maqhubu a phahameng joalo ka 100 ho isa ho 300 kilohertz," Bausch o itse.
Ho sa tsotellehe boholo ba tsona, likarolo tsa tšepe li lokela ho behoa ka tsela e nepahetseng pele li koalloa.Tlhokomelo e lokela ho nkoa ho boloka lekhalo le thata pakeng tsa lisebelisoa tsa motheo ho lumella hore ho be le khato e nepahetseng ea capillary ka tšepe e phallang.
Mekhoa ea khale kapa ea ho itokisa e ea amoheleha.Lisebelisoa tse tloaelehileng li lokela ho etsoa ka lisebelisoa tse fokolang tse kang tšepe e sa hloekang kapa ceramic, 'me li ame likaroloana hanyenyane kamoo ho ka khonehang.
Ka ho etsa likarolo tse nang le li-seams tse kopantsoeng, ho senya, ho tepella maikutlong kapa li-knurls, ho ikemela ho ka finyelloa ntle le tlhokahalo ea tšehetso ea mechine.
Joale manonyeletso a hloekisoa ka emery pad kapa solvent ho tlosa litšila tse kang oli, grease, rust, scale le grime.Mohato ona o ntlafatsa ka ho eketsehileng ketso ea capillary ea tšepe e entsoeng ka ho qhibilihisoa e hulang ka boeona ka libaka tse haufi tsa motsoako.
Ka mor'a hore likarolo li lule hantle 'me li hloekisoe, mosebeletsi o sebelisa motsoako o kopanetsoeng (hangata ke peista) ho motsoako.Motsoako ke motsoako oa tšepe ea ho tlatsa, flux (ho thibela oxidation) le sekontiri se tšoarang tšepe le ho phalla hammoho pele ho qhibiliha.
Litšepe tse tlatsoang le li-fluxes tse sebelisoang ha ho etsoa brazing li entsoe ho mamella mocheso o phahameng ho feta o sebelisoang ho soldering.Litšepe tse tlatsang tse sebelisoang bakeng sa brazing li qhibiliha ka mocheso oa bonyane 842 F 'me li matla ha li pholile.Li kenyelletsa aluminium-silicon, koporo, koporo-silevera, koporo, boronse, khauta-silevera, silevera le li-nickel alloys.
Opereishene ebe o beha khoele ea induction, e tlang ka meralo e fapaneng. Li-coil tsa Helical li chitja kapa li sebopeho sa oval 'me li pota-potile karolo ka ho felletseng, ha likhoele tsa fereko (kapa pincer) li fumaneha ka lehlakoreng le leng le le leng la lenonyello le li-channel hook holim'a karolo.Likhoele tse ling li kenyelletsa bophara ba ka hare (ID), ID/Outer Diameter (OD), Open, Pancake, le Pancake.
Mocheso o ts'oanang o bohlokoa bakeng sa likhokahano tsa brazed tsa boleng bo holimo. Ho etsa sena, mosebeletsi o hloka ho etsa bonnete ba hore sebaka se emeng lipakeng tsa loop e 'ngoe le e' ngoe ea induction e nyane le hore sebaka sa ho kopanya (bophara ba lekhalo ho tloha ho coil OD ho ea ho ID) se lula se ts'oana.
Ka mor'a moo, opareitara e bulela matla a ho qala ts'ebetso ea ho futhumatsa lenonyeletso. Sena se kenyelletsa ho fetisa ka potlako maqhubu a mahareng kapa a phahameng a chenchana ho tloha mohloling oa matla ho ea ho inductor ho theha matla a khoheli a fapanyetsanang ho e potoloha.
Matla a khoheli a etsa hore motlakase o be teng holim'a motsoako, o hlahisang mocheso ho qhibilihisa tšepe ea ho tlatsa, e lumellang hore e phalle le ho koloba holim'a karolo ea tšepe, ho theha maqhama a matla.Ho sebelisa li-coil tsa maemo a mangata, mokhoa ona o ka etsoa likarolong tse ngata ka nako e le 'ngoe.
Ho kgothaletswa ho hloekisa ho qetela le ho hlahloba karolo e 'ngoe le e' ngoe ea brazed. Ho hlatsoa likarolo ka metsi a futhumetseng ho fihlela bonyane 120 F ho tla tlosa masala a flux le tekanyo leha e le efe e entsoeng nakong ea brazing.Karolo e lokela ho qoelisoa ka metsing ka mor'a hore tšepe ea filler e tiee empa kopano e ntse e chesa.
Ho itšetlehile ka karolo, tlhahlobo e fokolang e ka lateloa ke liteko tse sa senyeheng le tse senyang.Mekhoa ea NDT e kenyelletsa tlhahlobo ea pono le radiographic, hammoho le tlhahlobo ea ho lutla le bopaki.Mekhoa e tloaelehileng ea liteko tse senyang ke metallographic, peel, tensile, shear, mokhathala, phetisetso le tlhahlobo ea torsion.
"Induction brazing e hloka matsete a maholo ho feta mokhoa oa torch, empa ho bohlokoa hobane o fumana ts'ebetso le taolo e eketsehileng," ho boletse Holland.Ha u sa etse joalo, ua hatella.”
Eldec e etsa mefuta e mengata ea mehloli ea matla bakeng sa ho kenya letsoho, joalo ka ECO LINE MF intermediate frequency line, e fumanehang ka mekhoa e sa tšoaneng ho lumellana hantle le kopo e 'ngoe le e' ngoe. Lisebelisoa tsena tsa motlakase li fumaneha ka litekanyetso tsa matla ho tloha ho 5 ho ea ho 150 kW le maqhubu ho tloha ho 8 ho isa ho 40 Hz. Mefuta eohle e ka hlomelloa ka ho eketsa matla a eketsehileng a 10% ho eketsa matla a eketsehileng a 10%. 50% ka hare ho metsotso ea 3. Likarolo tse ling tsa bohlokoa li kenyelletsa taolo ea mocheso oa pyrometer, mochine oa mocheso le insulated heke ea bipolar transistor power switch. Lisebelisoa tsena li hloka tlhokomelo e fokolang, li sebetsa ka khutso, li na le maoto a manyenyane, 'me li kopantsoe habonolo le balaoli ba lisele tsa mosebetsi.
Baetsi ba liindasteri tse 'maloa ba ntse ba tsoela pele ho sebelisa brazing ea induction ho bokella likarolo.Bausch e supa ho likoloi, sefofane, lisebelisoa tsa bongaka le baetsi ba thepa ea merafo e le basebelisi ba kholo ka ho fetisisa ba Ambrell induction brazing equipment.
"Palo ea likarolo tsa aluminium tsa induction brazed indastering ea likoloi e ntse e eketseha ka lebaka la mehato ea ho fokotsa boima ba 'mele," Bausch o bontša. "Lefapheng la lifofane, nickel le mefuta e meng ea liphahlo tsa ho apara hangata li khabisoa ho li-jet blades.Liindasteri ka bobeli li boetse li kenya lisebelisoa tse fapaneng tsa lipeipi tsa tšepe. ”
Mekhoa eohle e tšeletseng ea EasyHeat ea Ambrell e na le maqhubu a 150 ho ea ho 400 kHz 'me e loketse bakeng sa brazing ea induction ea likarolo tse nyenyane tsa li-geometries tse sa tšoaneng.Li-compacts (0112 le 0224) li fana ka taolo ea matla ka har'a qeto ea 25 watts;mehlala ea letoto la LI (3542, 5060, 7590, 8310) e fana ka taolo ka har'a qeto ea 50 watts.
Lihlopha tsena ka bobeli li na le hlooho ea mosebetsi e tlosoang ho fihlela ho maoto a 10 ho tloha mohloling oa matla. Litaolo tse ka pele tsa tsamaiso ea tsamaiso li ka lokisoa, li lumella mosebedisi ho qetela ho hlalosa litlaleho tse 'nè tse fapaneng tsa ho futhumatsa, e' ngoe le e 'ngoe e na le mehato e mehlano le matla.
Rich Cukelj, Mookameli oa Tsoelo-pele ea Khoebo ea Fusion oa hlalosa: “Bareki ba rōna ba ka sehloohong ba ho kenya tšepe ke bahlahisi ba likarolo tse nang le k’habone kapa likarolo tse khōlō tse nang le tšepe e ngata,” ho hlalosa Rich Cukelj, Mookameli oa Ntlafatso ea Khoebo ea Fusion.” Tse ling tsa lik’hamphani tsena li sebeletsa liindasteri tsa likoloi le tsa lifofane, ha tse ling li etsa lithunya, lithulusi tsa ho seha, lipompo tsa lipeipi le liphaephe, kapa liboloko tsa kabo ea motlakase le li-fuse.”
Fusion e rekisa mekhoa e tloaelehileng ea rotary e ka khonang ho kenya likarolo tse 100 ho isa ho tse 1,000 ka hora. Ho ea ka Cukelj, lihlahisoa tse phahameng li ka khoneha bakeng sa mofuta o le mong oa karolo kapa bakeng sa letoto le itseng la likarolo.
"Sistimi e 'ngoe le e' ngoe e na le indexer e tsoang ho Stelron Components Inc. e nang le li-workstation tse 8, 10 kapa 12," ho hlalosa Cukelj. "Lisebelisoa tse ling li sebelisetsoa ho betla, ha tse ling li sebelisetsoa ho hlahloba, ho sebelisa lik'hamera tsa pono kapa lisebelisoa tsa ho lekanya laser, kapa ho etsa liteko tsa ho hula ho netefatsa manonyeletso a boleng bo phahameng."
Bahlahisi ba sebelisa lisebelisoa tsa motlakase tse tloaelehileng tsa ECO LINE tsa eldec bakeng sa mefuta e sa tšoaneng ea lisebelisoa tsa ho kenya letsoho, tse kang shrink-fitting rotor le shafts, kapa ho kopanya li-motor housings, Holland e boletse.Haufinyane tjena, mohlala oa 100 kW oa jenereithara ena o ile oa sebelisoa karolong e kholo ea kopo e kenyelletsang mehele ea potoloho ea koporo bakeng sa likhokahano tsa pompo ea metsi a koporo.
Eldec e boetse e hlahisa lisebelisoa tsa motlakase tse nkehang tsa MiniMICO tse ka tsamaisoang habonolo ho pota fektheri e nang le maqhubu a 10 ho isa ho 25 kHz. Lilemong tse peli tse fetileng, moetsi oa li-tubes tsa mocheso oa likoloi o ile a sebelisa MiniMICO ho kenya li-elbows tsa braze ho e 'ngoe le e' ngoe.
Jim ke mohlophisi e moholo ho ASSEMBLY ea nang le phihlelo ea lilemo tse fetang 30. Pele a kena ASSEMBLY, Camillo e ne e le PM Engineer, mohlophisi oa Mokhatlo oa The Equipment Engineering Journal le Milling Journal.Jim o na le lengolo la Senyesemane ho tloha Univesithing ea DePaul.
Kenya Kopo ea Tlhahiso (RFP) ho morekisi eo u mo khethileng ebe o tobetsa konopo e hlalosang litlhoko tsa hau
Batla tataiso ea bareki ba rona ho fumana barekisi ba mefuta eohle ea theknoloji ea ho kopanya, mechini le litsamaiso, bafani ba litšebeletso le mekhatlo ea khoebo.
Lean Six Sigma e 'nile ea khanna boiteko bo tsoelang pele ba ntlafatso ka lilemo tse mashome, empa mefokolo ea eona e bonahala.Pokello ea data e sebetsa ka matla' me e ka nka feela lisampole tse nyenyane.Data joale e ka nkoa ka nako e telele le libakeng tse ngata ka karoloana ea litšenyehelo tsa mekhoa ea khale ea matsoho.
Liroboto li theko e tlaase ebile li bonolo ho li sebelisa ho feta leha e le neng pele.Theknoloji ena e fumaneha habonolo esita le bakeng sa bahlahisi ba banyenyane le ba mahareng.Mamela puisano ena e khethehileng ea phanele e nang le batsamaisi ba tsoang ho barekisi ba bane ba liroboto ba phahameng ba Amerika: ATI Industrial Automation, Epson Robots, FANUC America, le Universal Robots.