Radiator profile yog me me, thiab cov khoom siv nrog cov duab sib luag yog yooj yim dua los tsim. Feem ntau cov radiator profiles yog tiaj thiab dav, nrog rau sab nraud loj dua, thiab qee qhov yog asymmetrical. Qhov tob thiab dav ntawm cov fins yog qhov loj, ua rau nws nyuaj rau kev tsim khoom. Nyob rau hauv lub ingot, pwm, thiab extrusion txheej txheem, ntau yam yuav tsum tau kev koom tes nyob rau hauv thiaj li yuav ua tau zoo tsim lub radiator profile. Cov alloy siv rau extruding tshav kub dab dej profiles yuav tsum muaj zoo extrusion quab yuam thiab thermal conductivity. Feem ntau siv cov alloys yog 1A30, 1035, 6063, thiab lwm yam. 6063 alloy muaj cov khoom zoo txhua yam ntxiv rau kev ua tau zoo extrusion, yog li 6063 alloy yog dav siv tam sim no.
Kev tsim cov aluminium radiator profiles yuav tsum pib nrog qhov zoo ntawm ingots, pwm cov ntaub ntawv thiab tsim, txo extrusion quab yuam thiab extrusion txheej txheem.
1. Ingot zoo yuav tsum
Thaum lub sij hawm casting txheej txheem, cov ntsiab lus impurity nyob rau hauv lub alloy yuav tsum tau nruj me ntsis tswj kom lub purity ntawm lub alloy yaj. Txhawm rau tswj cov ntsiab lus Fe.Mg.Si hauv 6063 alloy. Cov ntsiab lus ntawm cov poov tshuaj sulfate yuav tsum tsawg dua 0.2 feem pua , thiab cov ntsiab lus ntawm cov poov tshuaj sulfate feem ntau tswj tsis pub dhau qhov txwv qis uas tau teev tseg los ntawm lub xeev, cov ntsiab lus Mg yog 0.45 feem pua ~{{7 }}.55 feem pua , thiab Si cov ntsiab lus yog 0.25 feem pua ~ 0.35 feem pua . Nyob rau hauv cov txheej txheem casting, kev kho kom txaus homogenization yuav tsum tau ua los xyuas kom meej lub uniformity ntawm cov qauv thiab cov khoom ntawm lub ingot.
Qhov saum npoo ntawm lub ingot yuav tsum du thiab tsis muaj kev sib cais ntawm cov qog thiab cov xuab zeb nplaum. Lub ntsej muag kawg ntawm lub ingot yuav tsum tiaj tus, thiab nws yuav tsum tsis txhob muab txiav mus rau hauv ib tug kauj ruam duab los yog txiav txoj kab nqes yuav tsum loj heev (qhov txiav txoj kab nqes yuav tsum tsis pub dhau 3 hli). Vim yog cov duab stepped los yog qhov txiav txoj kab nqes loj heev, thaum lub tiaj tus tuag yog siv los extrude lub tshav kub-dissipating profile, qhov kawg ntsej muag ntawm lub ingot thiab cov tuag tsis zoo li tsis muaj tus tsim ntawm lub baffle. Qee qhov chaw hu rau pwm ua ntej, ua rau muaj kev ntxhov siab, uas yooj yim rau nyem cov hniav profile ntawm cov pwm, los yog ua rau cov kab mob tsis sib xws, uas yooj yim ua rau pwm txhaws lossis tsis zoo extrusion molding.
2. Pwm xav tau
Txij li feem ntau ntawm cov radiator profiled nto pwm yog cov hniav, lawv yuav tsum tiv taus ntau dua squeezing quab yuam, thiab txhua tus hniav yuav tsum muaj zog dua thiab toughness. Yog tias qhov kev ua tau zoo sib txawv ntawm ib leeg, nws yog ib qho yooj yim ua rau cov hniav tsis zoo ntawm lub zog los yog toughness. . Yog li ntawd, qhov zoo ntawm cov hlau tuag yuav tsum txhim khu kev qha, thiab nws yog qhov zoo tshaj plaws los xaiv H13 steel tsim los ntawm cov chaw tsim khoom zoo, lossis xaiv cov hlau zoo tuaj. Kev kho cua sov ntawm pwm yog qhov tseem ceeb heev. Nws yog ib qho tsim nyog yuav tsum siv lub tshuab nqus tsev cua sov thiab quenching, nyiam dua high-pressure ntshiab nitrogen quenching, kom ntseeg tau tias qhov kev ua tau zoo ntawm txhua feem ntawm cov pwm yog sib xws tom qab quenching. Rau lub hauv paus ntawm HRC48 ~ 52, nws yog quenched thiab tempered peb zaug kom cov pwm hardness muaj txaus toughness. Qhov no tuaj yeem tiv thaiv cov hniav tawg.
Tus yuam sij rau kev ua tau zoo extrusion yog tsim pwm tsim thiab ua haujlwm siab. Feem ntau, ncaj qha extrusion ntawm ingot mus rau lub pwm siv yuav tsum zam kom ntau li ntau tau. Rau qhov dav tiaj tiaj tiaj radiator profile, cov ntawv qhia me me nruab nrab thiab loj tuag ntawm ob sab tuaj yeem ua rau cov hlau ntws mus rau ob sab, txo qhov extrusion siab ntawm txoj siv sia tuag, thiab lub siab sib npaug. Vim tias phab ntsa tuab qhov sib txawv ntawm lub tshuab hluav taws xob yog qhov loj, qhov sib txawv yuav tsum tau khaws cia kom zoo thaum tsim cov pwm ua haujlwm siv, uas yog, ntu radiator yuav tsum tau nthuav dav tshwj xeeb, uas tuaj yeem loj li 20mm ~ 30mm, thiab txoj hauj lwm ntawm cov hniav hau yuav tsum ua txhaum lub rooj sib txoos. Txo nws txoj haujlwm ua haujlwm. Nyob rau hauv tag nrho, nws yog ib qho tsim nyog los xyuas kom meej tias tag nrho cov hlau ntws sib npaug. Rau cov pav ca thiab dav radiators, lub thickness ntawm cov pwm yuav tsum tau nce kom tsim nyog los xyuas kom meej tias cov pwm muaj ib co degree ntawm rigidity. Lub thickness ntawm daim tawv nqaij nce li ntawm 30 mus rau 60 feem pua. Cov pwm yuav tsum zoo heev. Cov riam khoob yuav tsum nce, nqis, sab laug, thiab sab xis, thiab nruab nrab yuav tsum sib npaug. Qhov kev ua haujlwm yuam kev ntawm cov hniav thiab cov hniav yuav tsum tsawg dua 0.05mm. Qhov loj machining yuam kev yuav ua rau cov hniav eccentric, uas yog, lub thickness ntawm lub dab dej kub yog txawv. Qhov sib npaug, txawm tias cov hniav tawg yuav tshwm sim.
Nyob rau ntau qhov kev paub tab, nws kuj yog ib txoj hauv kev zoo siv cov hlau alloy steel nested pwm, uas muaj qhov zoo rigidity, hnav tsis kam, thiab tsis ua rau deformation, uas yog qhov zoo rau molding ntawm radiator profiles.
3. Txo extrusion siab
Txhawm rau kom tsis txhob muaj cov hniav tawg, lub siab extrusion yuav tsum raug txo kom ntau li ntau tau, thiab lub siab extrusion yuav tsum yog proportional rau qhov ntev ntawm lub ingot. Tus nqi ntawm alloy deformation kuj muaj feem xyuam rau yam xws li lub xeev ntawm lub ingot thiab degree ntawm deformation. Yog li ntawd, cam khwb cia rods ntawm tshav kub-dissipating aluminium profiles yuav tsum tsis txhob ntev dhau, uas yog hais txog 0.6 rau 0.85 npaug ntawm qhov ntev ntawm cov cam khwb cia zoo tib yam. Tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem casting pas nrig thiab extrusion txheej txheem, thiaj li yuav xyuas kom meej qhov zoo ntawm cov casting pas nrig, nws yog qhov zoo tshaj plaws los siv ib tug luv luv casting pas nrig, uas yog, qhov ntev ntawm lub dav hlau casting pas nrig (0.4~ 0.6) lub sij hawm los xyuas kom meej qhov zoo ntawm tus pas nrig casting.
Rau cov radiator profiles nrog cov duab nyuaj, ntxiv rau qhov ntev ntawm cov cam khwb cia, ntshiab aluminium luv casting tuaj yeem siv los ua kev sim extrusion, thiab tom qab ua tiav, cov khoom siv zoo tib yam tuaj yeem siv rau extrusion ntau lawm.
Thaum lub sij hawm annealing, lub uniform annealing ntawm lub ingot tsis tsuas yog muaj cov qauv thiab kev ua tau zoo, tab sis kuj txhim kho cov extrusion kev ua tau zoo thiab txo cov extrusion quab yuam. Yog li ntawd, lub ingot yuav tsum tau uniformly annealed. Raws li rau kev cuam tshuam ntawm deformation, vim hais tias qhov tawg ntawm lub radiator profile feem ntau kuj loj, thiab extrusion coefficient feem ntau nyob rau hauv 40, cov nyhuv tsis loj.
4. Extrusion txheej txheem
Tus yuam sij rau kev tsim cov khoom kub-dissipating yog qhov kev sim thawj zaug ntawm extrusion tuag. Yog tias ua tau, koj tuaj yeem ua qhov simulation sim ua ntej ntawm lub khoos phis tawj kom pom tias txoj siv sia ua haujlwm ntawm cov qauv tuag tsim nyog, thiab tom qab ntawd sim cov tuag ntawm lub extruder. Thawj qhov kev sim ntawm pwm yog qhov tseem ceeb heev. Tus neeg teb xov tooj yuav tsum ua kom lub ntsiab plunger txav mus qeeb qis dua 8MPa thaum lub ntsiab plunger raug thawb rau pem hauv ntej. Nws yog qhov zoo tshaj yog tias ib tug neeg saib ntawm qhov tawm ntawm pwm nrog lub teeb nyem, thiab tos rau txhua lub dab dej kub ntawm cov pwm extrusion kom sib npaug ntawm cov pwm. Tom qab lub qhov, lub siab tuaj yeem maj mam nrawm kom nrawm rau qhov extrusion. Tom qab qhov kev sim siab ua tiav, ua tib zoo saib xyuas qhov ceev ntawm extrusion quab yuam kom ua haujlwm zoo. Thaum ua qhov tshwj xeeb-zoo li tus nto ntawm lub radiator, xyuam xim rau cov pwm kub kub, uas yog nyob ze rau lub ingot kub. Yog tias qhov kub sib txawv loj dhau lawm, qhov kub ntawm cov hlau yuav txo qis vim qhov qeeb extrusion ceev thaum lub sij hawm nce siab, uas yuav yooj yim ua rau pwm thaiv los yog tsis sib xws ntawm qhov ntws.
