3. Khuv tus qauv rau hauv pawg:
Nws yog los ua ke thiab muab cov qauv ua npuas dej ua qauv los ntawm koj tus kheej (lossis yuav) nrog kev txhaj tshuaj thiab tus qauv riser los ua tus qauv cluster. Qhov kev sib xyaw ua ke no yuav ua ua ntej tha xim, lossis thaum lub sijhawm faus ua qauv tom qab kev npaj pleev xim. Nws yog ib qho txheej txheem tseem ceeb nyob rau hauv poob ua npuas (khoom pwm) casting.
Tam sim no siv cov khoom siv nplaum nplaum: roj hmab cov kua txiv, cob qhia cov kuab tshuaj, kub yaj nplaum nplaum, cov kab xev nplaum.
4. Qauv txheej:
Qhov chaw ntawm lub casting ua npuas ncauj tsim qauv yuav tsum tau coated nrog ib qho tuab ntawm cov xim pleev xim rau sab hauv lub plhaub ntawm lub plhaub. Lub luag haujlwm ntawm cov txheej yog los txhim kho lub zog thiab cov qauv kev puas tsuaj ntawm cov qauv xuab zeb thiab kev ua kom tsis txhob muaj zog ntawm cov duab xuab zeb thiab kev txhim kho tsis zoo nkauj, li kev txhim kho qhov tseeb ntawm lub ntsej muag.
Cov neeg yuav khoom tshwj xeeb rau poob ua npuas Casting yog tov nrog dej nyob rau hauv ib co txheej txheem viscosity los ua kom tiav viscosity. Cov xim sib tov tau muab tso rau hauv ib lub thawv thiab pleev xim rau ntawm tus qauv teeb tsa los ntawm kev ntsw, txhuam, txau, ob lub tsho tiv no, nrog cov txheej txheej txheej ntawm 0.5-2mm. Nws yog xaiv raws li hom ntawm casting alloy, cov qauv qauv thiab loj. Cov txheej txheej yog qhuav ntawm 40-50 degree.
5. Kev co qauv:
Qhia txog cov qauv siv ntau heev (ib ntawm ob txoj kev).
Cov txheej txheem suav nrog cov kauj ruam ntawm kev npaj xuab zeb, tso rau EPS qauv, sau cov xuab zeb, sealing thiab moulding.
① Kev npaj ntawm cov xuab zeb txaj
Muab cov xuab zeb nrog lub tshuab nqus tsev nyob ntawm lub rooj co thiab txhim kho nws nrog lub clamp. Put a certain thickness of bottom sand on the bottom (generally the thickness of the sand bed is 50-100mm or more) and vibrate it to solidify.
Casting xuab zeb yog qhuav quartz xuab zeb yam tsis muaj xyoob ntoo, fillers thiab dej. Cov hlau ferrous siv tau coarse sur phais vim tias qhov kub, tab sis cov xuab zeb zoo, tab sis cov xuab zeb zoo yog siv rau aluminium alloys. Tom qab ua tiav, cov xuab zeb moulding yuav tsum tau siv.
Lub thawv xuab zeb hais txog ib lub hnab xuab zeb nrog ib qho - sab qhib, thiab tso pa tawm lossis taug kev tsheb.
② Muab tus qauv EPS
Tom qab cov kab ke, Eps pawg qauv tau muab tso rau nws raws li cov txheej txheem yuav tsum tau ua thiab tsau nrog xuab zeb.
③ cog tshuab
Ntxiv cov xuab zeb qhuav (muaj ob peb txoj hauv kev los ntxiv cov xuab zeb) thiab thov kev co (x, y, z cov lus qhia) tib lub sijhawm. Lub sijhawm feem ntau yog 30-60 vib nas this, thiab cov xuab zeb moulding ua puv txhua qhov ntawm cov qauv, txhim kho cov sau ua ke. Qhov ntom ntawm cov pwm xuab zeb.
④ Sealing thiab moulding
Qhov saum npoo ntawm cov xuab zeb tau muab ntim nrog cov zaj duab xis yas, thiab ib lub tshuab nqus tsev rau hauv lub puab tsaig siv rau "kev sib raug zoo ntawm cov xuab zeb. Los ntawm muab lawv ua ke, nws yog qhov ua tau los tiv thaiv cov pwm los ntawm kev sib tsoo thaum lub sijhawm ua tiav. Qhov no hu ua "tsis zoo moulding". Nws yog feem ntau siv.
6. Hloov ntawm lub casting
Cov qauv EPS feem ntau soften ntawm li 80℃thiab decompose ntawm 420-480 degree. Cov khoom decomposition cov khoom siv suav nrog roj, kua thiab khoom. Qhov peb muaj sib txawv thermal decomposition qhov kub thiab txias thiab cov ntsiab lus sib txawv.
Thaum lub sij hawm tag nrho pwm casting, EPS cov qauv Undergal thermal decompred los ntawm cov roj av, tsim kom muaj cov pa roj av, uas yog cov pa roj av, uas yog cov qauv ntawm cov pwm, tus qauv thiab pwm. Cov hlau txuas ntxiv ua haujlwm txoj haujlwm ntawm EPS qauv thiab txav mus rau pem hauv ntej, thiab cov txheej txheem hloov chaw ntawm cov kav hlau thiab EPS qauv. Qhov kawg ntawm kev tshem tawm yog casting.
Cov txheej txheem nchuav ua haujlwm kom ua tiav qis nrawm {{{}} kev kub ceev-} tsis muaj nrawm. Kev txuas ntxiv yog tswj kom ntseeg tau tias tsis muaj kev cuam tshuam tshwm sim thaum lub sijhawm pouring. Tom qab pouring, lub tshuab nqus tsev ntawm cov pwm muaj kev tswj hwm rau 3-5 feeb, thiab tom qab ntawd lub twj tso kua mis nres. Lub ncuav kub yog 30-50℃siab dua xuab zeb casting.
7. Cua txias thiab tu
Tom qab txias, nws yog qhov yooj yim kom tshem cov xuab zeb los ntawm pwm. Koj tuaj yeem tiv thaiv cov xuab zeb kom nqa lub casting, lossis nqa lub casting ncaj qha los ntawm cov xuab zeb thiab coj nws tawm. Lub casting thiab cov xuab zeb qhuav yuav tsum sib cais. Cov xuab zeb qhuav yuav ua tiav thiab rov siv dua.
Qhov Zoo
Piv nrog tsoos xuab zeb casting, poob Ua npuas ncauj casting muaj cov txiaj ntsig zoo hauv qab no:
1. Poob npaus casting tsis xav tau porting lossis coring, yog li nws yog qhov tsim nyog rau lub thawv uas nyuaj rau kev ua tiav nrog kev ua si.
2. Poob npaus casting siv cov xuab zeb qhuav qhuav los sau tus qauv, yog li nws tuaj yeem siv dua li cov khib nyiab thiab txo cov nqi txo qis.
3. Poob npaus casumte yog dawb ntawm burrs thiab burrs, thiab tuaj yeem txo lub sijhawm tu kom huv ntau dua 80%.
4. Poob npaus casting yog ntau yam. Nws tuaj yeem tsim tsis tsuas yog cam khwb cia hlau thiab hlau cov hlau, tab sis kuj hlau casings nyob rau tib lub sijhawm, ua rau nws hloov tau thiab ntau yam.
5. Poob npaus casting tsis yog tsuas yog haum rau cov huab hwm coj casting thiab cov tshuab sib hauj lwm, tab sis kuj haum rau kev sib dhos kom ua qauv rau cov khoom lag luam me.
6. Yog tias kev nqis peev nyob rau hauv poob ua npuas dej yog tsim los, nws tuaj yeem ua tiav cov plua plav} pa} pa} pa} pa} pa} paab num huv si rua cov poj niam ua num huv {}}
7. Poob npaus casting tsis tas yuav molding txheej txheem, thiab ib tus neeg muaj qee txoj kev kawm luv luv nrog kev cob qhia luv luv rau thaj chaw thiab cov lag luam nrog tsis muaj peev xwm ua haujlwm.
8. Poob npaus casum ua yog haum rau pawg casting. Nws yog ib qho yooj yim rau tshem cov xuab zeb los ntawm cov xuab zeb qhuav -} embedded pwm. Rau cov khoom siv ntawm qee yam ntaub ntawv, kev kho kom sov tuaj yeem ua tau raws li lub hom phiaj.
9. Poob npaus casting yog qhov haum tsis tsuas yog rau cov khoom me me thiab nruab nrab ntawm cov kav dej loj, thiab cov khoom siv loj txias rau cov khoom siv me me. Nws muaj kev voj voog luv luv, cov nqi qis, thiab kev sib cav sib ntau ua ib qho luv luv, yog li nws yog nrov.
