Yuav luag txhua txoj kev sib dhos tuaj yeem ua tau ntau txoj hauv kev.Qhov kev xaiv uas lub chaw tsim khoom lossis kev sib koom ua ke xaiv rau cov txiaj ntsig zoo tshaj plaws yog feem ntau yog ib qho uas phim cov cuab yeej pov thawj rau ib daim ntawv thov tshwj xeeb.
Brazing yog ib qho txheej txheem zoo li no.Brazing yog cov txheej txheem hlau sib koom ua ke uas ob lossis ntau qhov hlau tau koom ua ke los ntawm melting muab tub lim hlau thiab ntws mus rau hauv kev sib koom ua ke.Cov hlau muab tub lim muaj qhov qis qis dua li cov hlau uas nyob ib sab.
Thaum tshav kub kub rau brazing yuav muab tau los ntawm torches, furnaces los yog induction coils.Nyob rau hauv induction brazing, ib tug induction kauj tsim ib tug magnetic teb uas heats lub substrate rau yaj cov muab tub lim hlau.Induction brazing yog ua pov thawj tias yog qhov zoo tshaj plaws kev xaiv rau ib tug loj hlob ntawm daim ntawv thov los ua ke.
"Induction brazing muaj kev nyab xeeb ntau dua li lub teeb ci, nrawm dua qhov cub tawg, thiab rov ua dua dua li ob qho tib si," said Steve Anderson, tus thawj coj ntawm kev tshawb fawb thiab kev sim ntawm Fusion Inc., uas muaj hnub nyoog 88 xyoo sib koom ua ke hauv Willoughby, Ohio hais tias, tshwj xeeb hauv ntau txoj hauv kev los ua ke, suav nrog brazing. "Plus, induction brazing yog qhov yooj yim dua.
Ob peb xyoos dhau los, Fusion tau tsim lub tshuab rau lub chaw nres tsheb tag nrho rau kev sib sau ua ke 10 carbide burrs rau hlau ua haujlwm thiab kev tsim cov cuab yeej.Cov burrs yog tsim los ntawm kev txuas cov cylindrical thiab conical tungsten carbide blanks rau steel shank.Tus nqi ntau lawm yog 250 qhov chaw hauv ib teev, thiab cov khoom sib cais tuaj yeem tuav tau 14 4 pcs.
Anderson piav qhia tias "Ib tug plaub-axis SCARA neeg hlau siv ib tug kov los ntawm lub tais, muab nws mus rau lub solder paste dispenser, thiab loads nws mus rau hauv lub gripper zes," Anderson piav qhia. "Tus neeg hlau ces muab ib daim ntawm lub tais thiab muab nws tso rau ntawm qhov kawg ntawm lub shank uas nws yog glued. Induction brazing yog ua los ntawm ib tug ob lub qhov hluav taws xob coiler nyob ib ncig ntawm cov hlau. Cov kua dej kub ntawm 1,305 F. Tom qab cov burr tivthaiv yog ua raws thiab txias, nws yog ejected los ntawm ib tug paug chute thiab sau rau ntxiv ua. "
Kev siv ntawm induction brazing rau kev sib dhos yog nce, feem ntau vim nws tsim kev sib txuas ntawm ob qhov hlau thiab vim tias nws muaj txiaj ntsig zoo hauv kev koom nrog cov khoom sib txawv. Kev txhawj xeeb ntawm ib puag ncig, kev siv tshuab zoo dua qub, thiab cov ntawv tsis yog ib txwm siv kuj tseem yuam cov kws tsim khoom siv los saib ze dua ntawm induction brazing.
Induction brazing tau nyob ib puag ncig txij li xyoo 1950, txawm hais tias lub tswv yim ntawm induction cua sov (siv electromagnetism) tau tshawb pom ntau tshaj li ib puas xyoo ua ntej los ntawm British tus kws tshawb fawb Michael Faraday.Hand torches yog thawj qhov chaw kub kub rau brazing, tom qab los ntawm furnaces nyob rau hauv 1920s.Thaum Ntiaj Teb Tsov Rog II, lub cub tawg-raws li txoj hauv kev tau nquag siv cov khoom siv hlau thiab cov khoom siv hlau.
Cov neeg siv khoom xav tau cua txias hauv xyoo 1960 thiab 1970s tau tsim cov ntawv thov tshiab rau induction brazing.Qhov tseeb, qhov loj brazing ntawm txhuas nyob rau hauv lig 1970s ua rau muaj ntau yam khoom nyob rau hauv niaj hnub automotive cua txias tshuab.
Rick Bausch, tus thawj tswj kev muag khoom rau Ambrell Corp., inTEST.temperature hais tias "Tsis zoo li lub teeb ci ntsa iab, induction brazing tsis sib cuag thiab txo qis kev pheej hmoo ntawm overheating,".
Raws li Greg Holland, tus thawj tswj kev muag khoom thiab kev ua haujlwm ntawm eldec LLC, tus qauv induction brazing system muaj peb yam.Cov no yog cov khoom siv hluav taws xob, lub taub hau ua haujlwm nrog lub induction coil thiab lub tshuab cua txias lossis cua txias.
Cov khoom siv hluav taws xob txuas nrog lub taub hau ua haujlwm thiab cov coils yog kev cai tsim kom haum nyob ib puag ncig ntawm kev sib koom ua ke.Inductors tuaj yeem tsim los ntawm cov khoom siv, cov hlua hloov tau, machined billets, lossis 3D luam tawm los ntawm cov hmoov tooj liab alloys.Feem ntau, txawm li cas los xij, nws yog ua los ntawm hollow tooj liab tubing, los ntawm cov dej ntws los ntawm ntau qhov laj thawj. kuj tseem tiv thaiv cov cua sov tsim hauv cov coils vim muaj qhov sib txawv ntawm qhov tam sim no thiab qhov ua rau tsis muaj hluav taws xob hloov pauv.
"Qee lub sij hawm ib tug flux concentrator tau muab tso rau ntawm lub kauj kom ntxiv dag zog rau lub magnetic teb ntawm ib los yog ntau lub ntsiab lus nyob rau hauv lub junction," Holland piav qhia. mus rau hauv ib cheeb tsam ntawm kev sib koom ua ke sai dua, thaum ua kom lwm qhov chaw txias dua. "
Ua ntej muab cov hlau qhov chaw rau induction brazing, tus neeg teb xov tooj yuav tsum tau teeb tsa qhov zaus thiab lub zog ntawm qhov system kom zoo.Qhov zaus muaj peev xwm nyob ntawm 5 txog 500 kHz, qhov ntau dua, qhov nrawm dua qhov kub.
Cov khoom siv hluav taws xob feem ntau muaj peev xwm ua tau ntau pua kilowatts ntawm hluav taws xob.Txawm li cas los xij, brazing ib lub xibtes loj hauv 10 mus rau 15 vib nas this yuav tsum tsuas yog 1 mus rau 5 kilowatts.Los ntawm kev sib piv, qhov loj tuaj yeem xav tau 50 mus rau 100 kilowatts ntawm lub zog thiab siv sijhawm li 5 feeb rau braze.
"Raws li txoj cai dav dav, cov khoom me me siv lub zog tsawg dua, tab sis yuav tsum muaj ntau zaus, xws li 100 txog 300 kilohertz," Bausch hais.
Txawm hais tias lawv loj npaum li cas, cov khoom hlau yuav tsum tau muab tso rau kom raug ua ntej fastened.Kev saib xyuas yuav tsum tau ua kom muaj qhov sib txawv nruj ntawm cov hlau hauv paus kom tso cai rau kev txiav txim siab capillary los ntawm cov dej ntws ntws los ntawm cov khoom siv hlau.Butt, ncej puab thiab pob tw pob qij txha yog qhov zoo tshaj plaws los xyuas kom meej qhov kev tshem tawm no.
Ib txwm siv los yog kho tus kheej yog qhov tsim nyog tau.Standard fixtures yuav tsum tau ua los ntawm cov khoom siv hluav taws xob tsawg xws li stainless hlau lossis ceramic, thiab kov cov khoom kom tsawg li sai tau.
Los ntawm kev tsim cov khoom nrog kev sib txuas ntawm seams, swaging, kev nyuaj siab lossis knurls, kev kho tus kheej tuaj yeem ua tiav yam tsis tas yuav muaj kev txhawb nqa txhua yam.
Cov pob qij txha yog tom qab ntawd ntxuav nrog ib qho emery ncoo los yog hnyav kom tshem tawm cov kab mob xws li roj, roj, xeb, nplai thiab grime.Qhov kauj ruam no ntxiv dag zog rau kev txiav txim siab capillary ntawm molten muab tub lim hlau rub nws tus kheej los ntawm qhov chaw nyob ib sab ntawm qhov sib koom ua ke.
Tom qab cov khoom tau zaum thiab ntxuav kom zoo, tus neeg teb xov tooj siv ib qho kev sib koom ua ke (feem ntau yog muab tshuaj txhuam) rau qhov sib koom ua ke.Cov khoom sib xyaw yog cov khoom sib xyaw ua ke ntawm cov hlau, flux (kom tiv thaiv oxidation) thiab cov ntaub ntawv uas tuav cov hlau thiab flux ua ke ua ntej melting.
Filler metals thiab fluxes siv hauv brazing yog tsim los tiv thaiv qhov kub siab dua li cov siv hauv cov khoom siv soldering.Filler hlau siv rau brazing yaj ntawm qhov kub ntawm tsawg kawg yog 842 F thiab muaj zog dua thaum txias.Lawv muaj xws li txhuas-silicon, tooj liab, tooj liab-nyiaj, tooj dag, tooj liab, kub-nyiaj, nyiaj, thiab nickel alloys.
Tus neeg teb xov tooj ces tso lub induction coil, uas tuaj nyob rau hauv ntau yam designs.Helical coils yog ncig los yog oval nyob rau hauv cov duab thiab tag ib ncig ntawm ib feem, thaum diav rawg (los yog pincer) coils nyob rau ntawm txhua sab ntawm lub sib koom tes thiab channel coils nuv mus rau part.Lwm coils muaj xws li Inner Diameter (ID), ID/Outer Diameter (OD), Pancake, Qhib, thiab.
Thaum tshav kub kub tsis sib xws yog qhov tseem ceeb rau kev sib txuas zoo ntawm brazed.Yuav ua li cas, tus neeg teb xov tooj yuav tsum xyuas kom meej tias qhov kev ncua deb ntawm txhua qhov induction kauj voj yog me me thiab qhov sib txuas ntawm qhov sib nrug (qhov dav ntawm coil OD mus rau ID) tseem zoo ib yam.
Tom ntej no, tus neeg teb xov tooj tig rau lub hwj chim los pib cov txheej txheem ntawm cov cua sov ntawm qhov sib koom ua ke.Qhov no yuav tsum ceev nrooj hloov nruab nrab lossis siab zaus hloov tam sim no los ntawm lub zog hluav taws xob mus rau inductor los tsim ib qho chaw sib nqus sib nqus nyob ib ncig ntawm nws.
Cov hlau nplaum induces ib tug tam sim no nyob rau saum npoo ntawm qhov sib koom ua ke, uas generates tshav kub kom yaj cov muab tub lim hlau, cia nws ntws thiab ntub cov nto ntawm cov hlau, tsim ib tug muaj zog daim ntawv cog lus.Siv ntau txoj hauj lwm coils, cov txheej txheem no yuav ua tau nyob rau hauv ntau yam ib txhij.
Kev ntxuav zaum kawg thiab kev tshuaj xyuas ntawm txhua qhov sib xyaw brazed yog pom zoo.Kev ntxuav qhov chaw nrog dej rhaub kom tsawg kawg 120 F yuav tshem tawm cov khoom seem thiab cov nplai tsim thaum lub sij hawm brazing.Qhov yuav tsum tau muab tso rau hauv dej tom qab cov hlau muab tub lim tau ruaj khov tab sis lub rooj sib txoos tseem kub.
Nyob ntawm ib feem, kev tshuaj xyuas tsawg kawg nkaus tuaj yeem ua raws li kev kuaj tsis muaj kev puas tsuaj thiab kev puas tsuaj.NDT cov txheej txheem suav nrog kev kuaj pom thiab duab hluav taws xob, nrog rau kev xau thiab pov thawj kev sim.Cov kev sim kev puas tsuaj feem ntau yog metallographic, tev, tensile, shear, qaug zog, hloov, thiab torsion kuaj.
Holland tau hais tias "Induction brazing xav tau kev nqis peev loj dua pem hauv ntej dua li txoj kev teeb, tab sis nws tsim nyog vim tias koj tau txais kev ua haujlwm ntxiv thiab kev tswj hwm," Holland tau hais.
Eldec tsim ntau yam khoom siv hluav taws xob rau induction brazing, xws li ECO LINE MF intermediate zaus kab, uas muaj nyob rau hauv ntau yam configurations kom zoo tshaj plaws haum rau txhua daim ntawv thov.Cov khoom siv fais fab no muaj nyob rau hauv cov kev ntsuas hluav taws xob xws li 5 txog 150 kW thiab zaus ntawm 8 mus rau 40 Hz.Txhua tus qauv hluav taws xob 10% tuaj yeem ua kom muaj peev xwm ua kom muaj zog ntxiv. Lub luag hauj lwm ntsuam xyuas los ntawm ib qho ntxiv 50% nyob rau hauv 3 feeb.Lwm yam tseem ceeb muaj xws li pyrometer kub tswj, kub recorder thiab insulated rooj vag bipolar transistor fais fab hloov.Cov khoom siv no yuav tsum tau saib xyuas me ntsis, ua haujlwm ntsiag to, muaj lub hneev taw me me, thiab tau yooj yim koom nrog cov neeg ua haujlwm ntawm tes.
Cov neeg tsim khoom hauv ntau qhov kev lag luam tau nce siv induction brazing los sib sau ua ke.Bausch cov ntsiab lus rau tsheb, aerospace, khoom siv kho mob thiab cov khoom siv mining manufacturers yog cov neeg siv loj tshaj plaws ntawm Ambrell induction brazing khoom.
"Tus naj npawb ntawm induction brazed aluminium Cheebtsam hauv kev lag luam automotive tseem nce ntxiv vim qhov pib txo qhov hnyav," Bausch taw qhia. "Nyob rau hauv aerospace sector, npib tsib xee thiab lwm yam ntawm cov ntaub qhwv yog feem ntau brazed rau dav hlau hniav.
Tag nrho rau ntawm Ambrell's EasyHeat systems muaj ntau zaus ntawm 150 txog 400 kHz thiab zoo tagnrho rau induction brazing ntawm me me ntawm ntau yam geometries.Cov compacts (0112 thiab 0224) muab lub zog tswj hauv 25 watts daws teeb meem; cov qauv hauv LI series (3542, 5060, 7590, 8310) muaj kev tswj tsis pub dhau 50 watts daws teeb meem.
Ob lub koob muaj lub taub hau ua haujlwm tshem tau mus txog 10 ko taw los ntawm lub zog hluav taws xob.Lub kaw lus pem hauv ntej vaj huam sib luag tswj tau yog programmable, tso cai rau cov neeg siv kawg los txiav txim siab txog plaub qhov sib txawv cua sov profiles, txhua tus muaj txog tsib lub sij hawm thiab cov kauj ruam fais fab.Remote power control is available for contact or analog input, or optional serial data port.
"Peb cov neeg siv khoom tseem ceeb rau induction brazing yog cov chaw tsim khoom uas muaj qee qhov carbon, lossis loj qhov chaw uas muaj cov feem pua ​​​​ntawm cov hlau," piav qhia Rich Cukelj, Fusion Business Development Manager.
Fusion muag kev cai rotary tshuab uas tuaj yeem induction braze 100 mus rau 1,000 qhov chaw hauv ib teev.Raws li Cukelj, yields ntau dua yog ua tau rau ib hom ntawm ib feem lossis rau ib qho tshwj xeeb ntawm cov khoom.Cov khoom no muaj qhov loj ntawm 2 txog 14 square inches.
"Txhua qhov system muaj tus ntsuas ntsuas los ntawm Stelron Components Inc. nrog 8, 10 lossis 12 chaw ua haujlwm," piav qhia Cukelj.
Cov neeg tsim khoom siv eldec tus qauv ECO LINE cov khoom siv hluav taws xob rau ntau yam induction brazing daim ntawv thov, xws li shrink-fitting rotors thiab shafts, los yog koom nrog lub cev muaj zog, Holland said.Ntau tsis ntev los no, 100 kW qauv ntawm lub tshuab hluav taws xob no tau siv rau hauv ntau qhov chaw thov uas koom nrog brazing tooj liab Circuit Court rings rau tooj liab kais dej sib txuas rau nas.
Eldec kuj tseem tsim cov khoom siv hluav taws xob MiniMICO uas tuaj yeem txav tau yooj yim nyob ib ncig ntawm lub Hoobkas nrog ntau zaus ntawm 10 mus rau 25 kHz.Ob xyoos dhau los, cov chaw tsim khoom siv hluav taws xob hloov hluav taws xob siv MiniMICO rau induction braze rov qab lub luj tshib rau txhua lub raj.Ib tug neeg tau ua tag nrho cov brazing, thiab nws siv sijhawm tsawg dua 30 vib nas this.
Jim yog tus kws kho mob loj ntawm ASSEMBLY nrog ntau tshaj 30 xyoo ntawm kev sau ntawv.Ua ​​ntej koom ASSEMBLY, Camillo yog PM Engineer, editor ntawm Association for Equipment Engineering Journal thiab Milling Journal.Jim muaj degree hauv lus Askiv los ntawm DePaul University.
Xa Daim Ntawv Thov Kev Pom Zoo (RFP) rau tus neeg muag khoom ntawm koj qhov kev xaiv thiab nyem lub pob qhia txog koj cov kev xav tau
Tshawb xyuas peb cov neeg yuav khoom cov lus qhia txhawm rau nrhiav cov neeg muag khoom ntawm txhua hom kev sib dhos tshuab, tshuab thiab tshuab, cov chaw muab kev pabcuam thiab cov koom haum ua lag luam.
Lean Six Sigma tau tsav tsheb kev txhim kho txuas ntxiv mus rau ntau xyoo, tab sis nws qhov tsis txaus tau pom meej. Cov ntaub ntawv sau tau siv zog thiab tuaj yeem ntes cov qauv me me xwb.Cov ntaub ntawv tam sim no tuaj yeem ntes tau ntev lub sijhawm thiab nyob rau ntau qhov chaw ntawm ib feem ntawm tus nqi ntawm cov laus phau ntawv txoj kev.
Cov neeg hlau pheej yig dua thiab siv tau yooj yim dua li yav dhau los.Cov thev naus laus zis no tau yooj yim txawm tias cov chaw tsim khoom me thiab nruab nrab.Mloog cov lus sib tham tshwj xeeb no uas muaj cov thawj coj los ntawm plaub ntawm Asmeskas cov neeg siv khoom sab saum toj: ATI Industrial Automation, Epson Robots, FANUC America, thiab Universal Robots.