Tuag Casting
Siab -xov hlau txhaj tshuaj rau complex, nyias- cov khoom siv phab ntsa nrog zoo heev nto tiav thiab qhov tseeb.
Kev nqis peev Casting
Poob- cov txheej txheem siv quav ciab zoo tagnrho rau kev sib txawv geometry thiab siab - kev ua tau zoo alloys nrog cov yam ntxwv sab hauv.
Pwm tas mus li
Reusable hlau pwm rau nruab nrab - ntim ntau lawm nrog cov khoom siv kho tshuab zoo thiab qhov ntom ntom.
Taw qhia
Kev xaiv cov txheej txheem casting txoj cai tsis yog phau ntawv qhia ua haujlwm- nws yog kev txiav txim siab ua lag luam nrog rau qhov tshwm sim tiag tiag rau tus nqi, qhov zoo, thiab lub sijhawm pib. Yog tias koj hnyav tuag Casting, Peev Casting, thiab Pwm tas mus li Casting, koj yuav ntsib ib lossis ntau dua ntawm cov ntsiab lus mob no: nruj kam rau siab hu rau ntawm cov ntawv luam tawm, tsis paub meej txhua xyoo ntim, siab- nruj lossis cov khoom kom zoo nkauj, thiab yuav tsum tau tswj tag nrho cov nqi ntawm cov tswv cuab yam tsis muaj sijhawm poob.
Cov lus qhia no tshem tawm qhov kev txiav txim siab mus rau thawj cov hauv paus ntsiab lus thiab muab tswv yim rau koj, engineering- npaj txhij los xaiv txoj hauv kev zoo tshaj. Koj yuav kawm paub yuav ua li cas txhua tus txheej txheem ua tau hlau, txhais tau li cas rau phab ntsa tuab, cov cua ntsawj ntshab, porosity, thiab nto tiav, thiab qhov twg tus nqi tiag tiag tus neeg tsav tsheb zais - cuab yeej, lub sijhawm voj voog, tawm los, thiab kev ua haujlwm thib ob. Koj tseem yuav pom cov ntsiab lus meej meej rau thaum lub cuab yeej siv nyiaj ntau dua, thaum xaiv cov khoom siv quab yuam koj txhais tes, thiab cov chav kawm ua siab ntev thiab zoo li txhais li cas rau cov txheej txheem muaj peev xwm.
Cov Ntsiab Lus Txiav Txim Siab
Cov khoom xav tau thiab alloy compatibility
Txhua xyoo ntau lawm ntim thiab ntau qhov ntau thiab tsawg
Dimensional tolerances thiab geometric complexity
Deg tag thiab cosmetic xav tau
Mechanical zog thiab porosity txwv
Tuag Casting vs Investment Casting vs Permanent Pwm Casting: Lus Txhais & Cov Ntsiab Lus
Tuag Casting yog dab tsi?
Tuag casting rog molten hlau rau hauv ib tug hardened steel tuag ntawm kev kub ceev thiab siab siab, ces ejects lub solidified ib feem nyob rau hauv vib nas this. Cov tuag yog cov cuab yeej precision nrog kev ruaj khov thiab txav ib nrab, sliders rau undercuts, thiab engineered venting / overflow kom khiav tawm huab cua.
Ob lub tshuab architectures muaj: kub-chamber (txheej txheem rau hauv cov yaj; zoo tagnrho rau qis- melting alloys zoo li Zn / Mg) thiab txias-chamber (ladled hlau; siv rau Al thiab Cu-raws li alloys). Cov txheej txheem muaj peev xwm los ntawm kev tswj cov hlau nrawm, lub rooj vag tsim, qhov kub thiab txias, thiab -thaum xav tau- lub tshuab nqus tsev tuag casting kom txo qhov porosity.
Qhov twg nws ci:
Cov ntim loj txhua xyoo, nruj kom zoo nkauj thiab qhov yuav tsum tau ua, nyias- phab ntsa thaiv, cua sov- cov duab dissipating.
Tej yam txwv:
Alloy tsev neeg txwv tsis pub -ferrous; Cov roj uas txhaws tau tuaj yeem cuam tshuam rau cov cua sov- kho / vuam tshwj tsis yog txo qis; tooling peev yog siab dua.
Investment Casting yog dab tsi?
Kev nqis peev casting (poob ciab) tsim ib lub plhaub pov tseg ceramic nyob ib ncig ntawm cov qauv siv quav ciab. Cov qauv yog txhaj rau hauv cov cuab yeej txhuas, sib sau ua ke rau hauv "ntoo," pheej rov dipped hauv slurry thiab stuccoed nrog xuab zeb los tsim lub plhaub thickness, ces dewaxed thiab raug rho tawm haujlwm.
Molten hlau-xws li ntawm txhuas mus rau stainless hlau thiab superalloys- yog nchuav rau hauv ib lub sijhawm - lub plhaub. Tom qab solidification, lub plhaub tau tawg, cov rooj vag raug txiav, thiab cov khoom txav mus rau qhov cua sov- kho thiab ua tiav. Vim hais tias lub plhaub ua tau zoo nyob ib puag ncig cov quav ciab, peev casting excels ntawm complex geometries, zoo deg nthuav dav, thiab broad xaiv cov khoom, nrog rau cov hlau uas tuag casting ua tsis tau.
Qhov twg nws ci:
Cov duab zoo nkauj, sab hauv, siab -kub lossis corrosion- cov alloys resistant, qis- mus rau - nruab nrab ntim.
Tej yam txwv:
Lub sij hawm txhuas thiab lub voj voog ntev dua, cov nqi siab dua, kev ua siab ntev looser dua li tuag casting yam tsis muaj kev ua haujlwm thib ob.
Permanent Pwm Casting yog dab tsi?
Pwm tas mus li casting pours hlau-los ntawm lub ntiajteb txawj nqus, qaij- ncuav, los yog tsis tshua muaj siab- mus rau hauv ib tug reusable hlau pwm uas yog preheated thiab coated. Tsis muaj kev txhaj tshuaj siab -; filling yog calmer, uas txhawb kev noj qab haus huv zoo thiab qis dua gas entrapment.
The result is denser microstructure and mechanical properties superior to sand casting, often with better dimensional control and surface than sand but below die casting. Cov txheej txheem haum rau txhuas, magnesium, thiab tooj dag alloys, thiab yog ib qho kev xaiv muaj zog rau nruab nrab ntim qhov twg lub zog, xau{1}} nruj, thiab cov khoom zoo ib yam tseem ceeb.
Qhov twg nws ci:
Nruab nrab- ntim cov khoom tsim, siab- nruj aluminium vaj tse, cov ntu tuab uas tsis haum rau tuag- cov rooj vag nrum.
Tej yam txwv:
Cov yam ntxwv nyias nyias thiab cov ntsiab lus hnyav yog qhov nyuaj dua li hauv kev tuag casting; geometry kev ywj pheej yog tsawg dua peev casting.
Khoom siv & Khoom
Tuag Casting
- Aluminium (A380 / ADC12, A413)
- Zinc (Zamak 3/5)
- Magnesium (AZ91D / AM60B)
- Copper{0}}raws li alloys (limited)
Kev nqis peev Casting
- Stainless hlau
- Tsawg- hlau alloys
- Superalloys (Ni / Co raws)
- Aluminium thiab tooj dag alloys
Pwm tas mus li
- Aluminium alloys
- Magnesium alloys
- Bronze thiab tooj dag alloys
- Txhim kho qhov ceev vs. xuab zeb casting
Aluminium / HPDC
Aluminium tseem yog tus neeg ua haujlwm rau lub teeb yuag thiab cov ntaub thaiv npog. Peb cov txhuas tuag casting muaj peev xwm spans txias-chamber machines loj rau nyias- phab ntsa vaj tse thiab cov khoom siv. Rau qhov chaw uas xav tau cov tshuaj pleev ib ce nruj thiab rov ua dua cov ntaub ntawv, peb pom zoo kom muaj kev kub siab aluminium tuag casting (HPDC) nrog lub tshuab nqus tsev thiab cov tshuab ua pa.
Raws li tus kws tshaj lij aluminium alloy tuag casting tshwj xeeb, peb niaj hnub ua cov txheej txheem txhuas tuag cam khwb cia hlau xws li A380 / ADC12 thiab A413, thiab txhawb nqa downstream tiav los ntawm e-coat rau anodizing. Txawm hais tias koj tab tom ntsuam xyuas cov chaw tsim khoom txhuas tuag casting rau lub platform tshiab lossis sib sau ua ke txhuas tuag casting lwm tus neeg, peb tuaj yeem hais ib zaug -kab noj hniav mus txog ntau- kab noj hniav ntau lawm thiab muab lub voj voog tiag tiag - cov ntaub ntawv sijhawm.
Zinc / Zam
Thaum plating- chav kawm zoo li lossis cov ntsiab lus zoo yog qhov tseem ceeb, zinc alloy tuag casting-tshwj xeeb tshaj yog zamak tuag casting- yog qhov nyuaj rau ntaus. Peb ua hauj lwm nrog cov zinc tuag casting manufacturers ntawm hniav bezels, EMI qhov rooj, thiab connector plhaub, thiab peb kuj muab ntau lawm ncaj qha raws li ib tug -stop khub.
Nrog zinc siab tuag casting, phab ntsa seem mus rau sub- millimeter yog ua tiav, thiab zinc tuag casting khoom txais Ni / Cr plating nrog zoo adhesion.
Rau tus nqi- cov kev pabcuam rhiab heev, zinc feem ntau txo qhov kev ua haujlwm thiab ua tiav cov kauj ruam piv rau txhuas.
Magnesium
Rau qhov hnyav hnyav lub hom phiaj hauv kev tuav los yog lub tsheb sab hauv cov qauv, magnesium tuag casting muab lub zog zoo tshaj plaws - rau - hnyav ntawm cov alloys.
Peb lub network ntawm magnesium tuag casting tuam txhab txhawb nqa AZ91D thiab AM60, thiab hybrid cov kev pab cuam uas ua ke magnesium thiab txhuas alloy tuag casting qhov chaw nruj thiab nqi yuav tsum sib npaug.
Kev tiv thaiv nto thiab fastening lub tswv yim yog txhais ua ntej los xyuas kom meej durability.
Tsim rau Manufacturability (DFM) Essentials
Tau txais castings txoj cai pib ntawm daim duab. Cov txheej txheem koj xaiv dictates qhov thicknesses, kaum, cores, thiab datum cov tswv yim yuav ua tau rov ua dua nrog cov txiaj ntsig zoo. Siv cov kev taw qhia hauv qab no rau cov khoom siv ua haujlwm uas ua kom huv si, tshem tawm kev ntseeg siab, thiab ua tau raws li qhov xav tau ntawm cov dej ntws thiab cov dej xau yam tsis muaj cov khoom seem.
Phab ntsa thickness & uniformity
Tuag Casting
- Hom nominal phab ntsa: Al 1.2-2.5 hli, Zn 0.6-1.5 hli, Mg 1.0-2.0 hli
- Nyias tav los yog cov yam ntxwv hauv zos tuaj yeem poob hauv qab no, tab sis ua kom luv luv nrug thiab dav fillets
- Khaws cov phab ntsa tsis pub dhau ± 15-20% raws txoj kev ntws
- Flow length-rau-thickness (L/t) Tsawg dua lossis sib npaug ~ 100: 1 yog lub qab nthab
Kev nqis peev Casting
- Tej phab ntsa: 2.5–6.0 mm rau Al thiab steels
- Cov cheeb tsam nyuaj yuav xav tau ntau dua rau lub plhaub kev ncaj ncees
- Uniformity nyob rau hauv ± 20-30% txwv qhov kub thiab shrinkage gradients
- Plhaub txhawb nqa cov yam ntxwv zoo, tab sis kev noj zaub mov tswj hwm qis dua
Permanent Pwm Casting
- Cov phab ntsa: Al 3.0–6.0 mm
- Calmer sau nyiam lub suab tab sis tawm tsam nrog nyias nyias - phab ntsa
- Lub hom phiaj L / t Tsawg dua lossis sib npaug rau ~ 60: 1 rau qhov ntev ntws ntev
- Siv cov kev hloov maj mam; ntxiv cov pawm hauv zos rau machining
Draft angles (ejection thiab demolding)
Tuag Casting
Sab nraud: 0.5-1.0 degree; nce rau textured tshuaj pleev ib ce
Internal cores: 1.0-2.0℃kom tsis txhob galling thiab tuag soldering
Ntxiv cov lead tso tawm -ins ntawm qhov siab tav / tus thawj coj
Kev nqis peev Casting
1.5-2.5℃sab nraud, 2.0-3.0℃sab hauv
Tsawg dua tuaj yeem ua tau ntawm cov yam ntxwv luv luv tab sis cia siab tias yuav tau ntxuav ntau dua
Pwm tas mus li
1.0-2.0℃sab nraud, 1.5-2.5℃sab hauv
Preheat thiab coatings pab, tab sis tsis txhob cia siab rau lawv los cawm nyob rau hauv -drafted hnab ris
Bosses, tav, thiab fillets (tuaj yeem tsis muaj dab dej)
Ribs
Tuag Casting
rib thickness 0.6-0.8 × nyob ib sab phab ntsa; ntxiv fillets ob sab. Siab ribs buckle los yog stick; ntu ntev tav thiab qhov rais rau qhov cua.
Kev nqis peev Casting
0.7–0.9 × phab ntsa. Khaws qhov sib nrug ntau dua lossis sib npaug ntawm 2 × phab ntsa kom tsis txhob muaj qhov txias txias thiab noj cov teeb meem.
Pwm tas mus li
0.6–0.8 × phab ntsa nyob ib sab. Khaws qhov sib nrug ntau dua lossis sib npaug ntawm 2 × phab ntsa kom tsis txhob muaj qhov txias txias thiab noj cov teeb meem.
Cov thawj coj
OD: ID Ntau dua lossis sib npaug rau 2.0: 1, lub hauv paus fillet Ntau dua lossis sib npaug rau 0.5 × phab ntsa
Web tus thawj coj mus rau cov phab ntsa nyob ze nrog 0.6-0.8 × phab ntsa tav es tsis yog thickening lub tog raj kheej
fillets thiab radii
Internal radii: Ntau dua lossis sib npaug rau 0.5 × phab ntsa (kev nqis peev: Ntau dua lossis sib npaug rau 0.75 ×)
Sab nraud radii: Ntau dua lossis sib npaug ntawm 0.25–0.5 × phab ntsa
Zam cov kaum ntse ntse ntawm kev sib tshuam; lawv cuab cua (tuag) thiab mloog zoo shrinkage (txhua yam txheej txheem)
Cores thiab undercuts (yuav ua li cas los tsim cov geometry koj xav tau)
Tuag Casting
- Nyiam sliders/lifters rau sab nta; khaws swb suav qis thiab strokes luv
- Los ntawm qhov nyob ntawm qhov qhib / kaw axis yog huv si; hla txoj kab sib cais, npaj cov slides lossis post- xyaum
- Rau qhov sib sib zog nqus sab hauv kab noj hniav, xav txog lub tshuab nqus tsev thiab cov tswv yim overflows kom tsis txhob muaj roj
Kev nqis peev Casting
- Siv cov ceramic los yog cov cores soluble rau sab hauv
- Txheeb xyuas qhov tseem ceeb tshem tawm thiab lub plhaub tawm (tsis muaj cov xov xwm raug ntes)
- Complex internal nta yog ua tau tab sis ntxiv tus nqi thiab kev pheej hmoo
Pwm tas mus li
- Nyiam ncaj hlau rub; txwv undercuts
- Xav txog qaij-ntoo lossis qis-siab sib txawv los txhim kho kev sau cov yam ntxwv sab hauv
- Complex undercuts thawb tus tsim mus rau peev casting
Kev xav txog kev tsim qauv ntxiv
Qhov, qhov, thiab nyias qhov qhib
- Yam tsawg kawg nkaus li - nrum qhov Ø Ntau dua lossis sib npaug rau 1.0 × phab ntsa (tuag / tas mus li) thiab Ntau dua lossis sib npaug rau 1.0–1.5 × phab ntsa ( nqis peev)
- Cored slots / windows: Ntau dua lossis sib npaug ntawm phab ntsa tuab (tuag) thiab Ntau dua lossis sib npaug rau 1.5 × phab ntsa (kev nqis peev)
- Txhaum qhov ntev nrog txuas txuas los txhawb cov cores
01
Machining nyiaj pab
- Tuag Casting: 0.3-0.6 hli ntawm lub ntsej muag tseem ceeb
- Kev nqis peev: 1.0-2.0 hli raug vim lub plhaub hloov pauv
- Pwm tas mus li: 0.5-1.0 hli; zoo sib npaug ntawm stability thiab kev rau siab
02
Datum Strategy (GD&T)
- Xaiv datums ntawm robust, cam khwb cia- pav ca pads ze rau functional interfaces
- Khaws cov datums kom deb ntawm cov kab sib cais thiab cov ntsej muag kom zoo nkauj
- Tsav kev sib raug zoo nrog txoj hauj lwm / flatness / profile es tsis yog ultra- nruj linear tolerances
03
Xov thiab inserts
- Cam khwb cia xov tsuas yog ntxhib thiab tsis yog - tseem ceeb; nyiam tapping/dov ncej-cast
- Tuag Casting: pwm-in inserts yog siv tau nrog knurl/undercut
- Lwm tus: feem ntau tshaj tawm -nruab qhov ntxig los tiv thaiv pwm lub neej
04
Tolerances, flatness, thiab nto tiav
Linear tolerances (zoo ib yam, raws li -cast)
| Txheej txheem | Txog li 25 mm | Txog li 100 mm | Sau ntawv |
|---|---|---|---|
| Tuag Casting | ± 0.05-0.10 hli | ± 0.10-0.20 hli | Ntxiv mus, ntxiv rau 25 mm increment. Tighten nrog machining pads qhov xav tau. |
| Kev nqis peev Casting | ± 0.25-0.50 hli | ± 0.50-1.00 hli | Ntev - nyob ntawm kev loj hlob tom qab HT yuav tsum tau txiav txim siab. |
| Pwm tas mus li | ± 0.15-0.30 hli | ± 0.30-0.50 hli | Stable tab sis tsis tuag-casting- nruj. |
Flatness / ncaj
Qhia rau cov dav hlau ua haujlwm nkaus xwb; muab machinable pads. Rau qhov ntev nyias, tsim kev ntxhov siab-cov yam ntxwv nyem los yog lees txais ncej- nrum ncaj.
Hom flatness peev xwm (ib 100mm ntev):
Tuag Casting: 0.10-0.30mm
Peev Casting: 0.30-0.80 mm
Pwm tas mus li: 0.20-0.50 mm
Nto tiav
Tuag Casting
as- nrum Ra ≈ 1.5–3.2 µm; zoo heev rau xim / e-coat. Cosmetic Class A nto yuav tsum fim qhov chaw ruaj khov tuag thiab muaj cov hlau ntws ncaj qha.
Kev nqis peev Casting
Ra ≈ 3.2–6.3 µm; txhaj tshuaj / peen, tshuab, los yog polish raws li xav tau.
Pwm tas mus li
Ra ≈ 2.5–4.0 µm; coatings thiab pwm prep tsav sib xws.
Khoom Description
Tuag Casting
- Txhais cov hom phiaj porosity (xws li,<1% area for cosmetic surfaces; <0.5% for pressure-tight) and specify vacuum die casting plus vent/overflow locations.
- Khaws cov av sib khi kom tuab txaus rau tshuab- foob yam tsis ua rau daim tawv nqaij.
Kev nqis peev Casting
- Tsim risers / pub rau cov chaw kub; xav txog HIP rau qhov tseem ceeb, siab -kev ncaj ncees steel qhov chaw.
- Ceramic plhaub peev muab zoo nto tag tab sis tej zaum yuav xav tau machining rau sealing daim ntaub ntawv.
Pwm tas mus li
- Leverage calmer fills thiab qaij / qis-siab los txhim kho qhov ceev; ntxiv cov khoom hauv zos rau gasket grooves thiab O-ring lands.
- Feem ntau zoo dua li cov xuab zeb casting nrog tsawg porosity teeb meem tshaj li siab -siab tuag casting.
Kev ntsuas & kev tsim nyog
Hu rau CMM ntawm cov phiaj xwm datum, X-ray / CT rau siab-tight tuag castings, NDT (PT/MT/UT) rau steel peev castings. Ua raws li cov kev xav tau ntawm cov neeg siv khoom (xws li PPAP qib lossis FAI pob ntawv) kom tsis txhob lig - theem xav tsis thoob.
Kev Ruaj Ntseg Zoo & Kev Tshuaj Xyuas
Casting zoo yog yeej los yog poob rau hauv cov ntsiab lus ntawm ntws, solidification, thiab yuav ua li cas koj txheeb xyuas ob qho tib si. Cov ntu hauv qab no qhia txog qhov tsis xws luag rau lawv cov hauv paus hauv paus ua los ntawm cov txheej txheem, tom qab ntawd qhia txog cov kev tswj hwm thiab kev tshuaj xyuas uas khaws cov khoom hauv spec thiab cov kev pabcuam raws sijhawm.
Common defects & root ua (los ntawm txheej txheem)
Porosity (gas / voids)
Tuag casting
huab cua nkag los ntawm turbulent filling, tsis txaus venting / overflow, los yog tsis txaus lub nqus tsev vacuum; tuag soldering uas narrows ntws; tsawg tuag kub ua rau tawv nqaij ntxov ntxov; ntau tshaj lubricant nqa mus tsim cov roj.
Kev nqis peev casting
gas los ntawm ya raws los yog organics tshuav nyob rau hauv lub plhaub; tsis txaus de-wax/burnout; tsis zoo rooj vag / rising ua rau shrink porosity npog li roj; turbulence thaum lub sij hawm ncuav.
Pwm tas mus li
gas los ntawm damp txheej; oxide entrapment thaum ncuav qhov siab siab; shrink porosity thaum pub mis tsis txaus los yog txias / pwm kub tsis sib npaug.
Misrun / Txias kaw
Tuag casting
hlau freezes ua ntej ntws- fronts knit vim tsis tshua muaj hlau los yog tuag kub, ib yam nkaus thiab -slow gate velocity, ntev/thin flow paths, los yog undersized rooj vag.
Kev nqis peev casting
low superheat, txias plhaub, ntev nyias phab ntsa tsis muaj qhov rooj txaus; lig ntoo sau sequencing.
Pwm tas mus li
pwm txias heev, ncuav tus nqi qeeb los yog cuam tshuam; ntev ntws lengths piv rau phab ntsa.
Shrinkage (centerline lossis localized)
Tuag casting
cov ntu tuab yam tsis muaj overflows los yog siab intensification; pob thaum ntxov / siab poob; tsis zoo thermal tswj nyob ib ncig ntawm tus thawj / tav.
Kev nqis peev casting
tsis txaus riser ntim los yog pub mis; kub chaw ntawm junctions; Txoj kev npaj ua kom muaj zog tsis txaus.
Pwm tas mus li
cov rooj vag tsis txaus / risers (yog, risers tseem tseem ceeb rau PM), kev siv tsis zoo ntawm cov cua txias; pwm kub siab heev nyob rau hauv qhov chaw kub.
Lwm yam tsis xws luag
Laps / Folds / Cold laps
Ua los ntawm bifurcating ntws pem hauv ntej lub rooj sib tham ntawm qhov kub thiab txias, feem ntau nyob ib ncig ntawm cov yam ntxwv nyuaj los yog vim qhov tsis zoo ntawm qhov rooj.
Cov khoom xyaw / oxides
Kev kis kab mob los ntawm oxide zaj duab xis, dross, ceramic plhaub hais, los yog txheej khib nyiab nkag mus rau hauv cov hlau molten.
Kua muag / Kub tawg
Qhov tshwm sim los ntawm qhov txwv tsis pub muaj cov thermal gradients siab, ejection ntxov ntxov, los yog ntse sab hauv cov ces kaum.
Qhov teeb meem loj
Warpage, tsis sib haum, los yog tawm - ntawm - cov yam ntxwv ua siab ntev los ntawm kev ua kom txias tsis sib xws, pwm hnav, lossis kev tshem tawm tsis raug.
Cov txheej txheem tswj uas txav cov koob
Tuag casting tswj
- Die kub qhov rais: stabilize nrog kaw - voj tuag thermal tswj
- Fill ceev & siab nkhaus: siv txhaj koob tshuaj tiv thaiv uas tsim kom nrawm nrawm, nruam ntws
- Venting & overflow tsim: tso cov vents kawg - puv cheeb tsam
- Lubrication kev qhuab qhia: tsawg heev, zoo ib yam tshuaj tsuag; ntxuav dej
- Nqus tuag casting: yuav tsum tau rau siab- nruj los yog siab- cov khoom kom zoo nkauj
Kev nqis peev casting tswj
- Plhaub tsim tsis tau: viscosity, dip lub sij hawm, stucco loj, thiab ziab tej yam kev mob
- Dewax & burnout: autoclave lossis flash hluav taws kom tshem tawm cov quav kom huv
- Gating/riseing & directional solidification npaj
- Ncuav kev qhuab qhia: superheat tsim nyog rau alloy; tswj ncuav qhov siab
- Tiv thaiv yaj los ntawm slag / oxide thaum lub sij hawm pouring txheej txheem
Kev tswj pwm tas mus li
- Pwm preheat & txheej: preheat stabilizes sau; txheej tswj cua sov hloov
- Lub ntiajteb txawj nqus / qaij-ntev lub sijhawm: qhib qaij tus nqi kom muaj kev sib koom ua ke
- Rooj vag & pub mis: rooj vag dav rau qhov dej ntws; ntxiv risers qhov tsim nyog
- Siv cov cua txias kom tshem tawm cov chaw kub thiab txhawb kev taw qhia kom ruaj khov
- Tswj qhov cua los ntawm cov coatings thiab tsim kom muaj cua khiav tawm
Kev tshuaj xyuas & kev pov thawj
Dimensional & geometric
- CMM ntawm cov ntaub ntawv ua haujlwm rau thawj kab lus thiab kev tshawb fawb txog kev muaj peev xwm
- Txhais cov txheej txheem datum raws li cov lus qhia fixturing thiab ejection
- SPC ntawm cov yam ntxwv tseem ceeb (Cp / Cpk qhov xav tau)
- Tsom ntsoov rau cov yam ntxwv rhiab rau tuag hnav lossis plhaub / pwm variation
01
Nto & tshuaj pleev ib ce
- Roughness (Ra / Rz) ntawm cov neeg sawv cev; cov ntaub ntawv taw qhia
- Cov chav kawm pom pom nrog cov qauv txwv kev pom zoo
- Rau kev tuag casting, tshuaj xyuas cov cim ntws thiab kev sib cais ntawm kab
- Lub teeb pom kev zoo sib xws thiab pom qhov deb rau kev tshuaj xyuas qhov muag
02
Internal kev ncaj ncees
- X-ray rau porosity, txias kaw, thiab suav nrog
- CT scanning rau kev hloov phab ntsa nyuaj lossis porosity faib
- Kev ntsuas dej (cua hauv dej, siab lwj, huab cua ntws)
- Txhais kev ntsuas siab, txwv (piv txwv li, sccm), thiab lub sijhawm ruaj khov
03
Khoom siv & qauv
- Metallography (microstructure, porosity ntsuam xyuas, dendrite caj npab sib nrug)
- Hardness & cua sov- kho qhov tseeb rau cov hlau thiab PM qhov chaw
- Conductivity xyuas rau Al alloys
- NDT rau steels (dye penetrant, magnetic particle, ultrasonic)
04
Peev xwm & Volume Suitability
Txheej Txheem Xaiv Kev Txiav Txim Ntoo
Siv cov logic hauv qab no ua kev nrawm nrawm ua ntej RFQ. Nws ua qhov tseem ceeb ntawm cov khoom, tom qab ntawd ntim thiab muaj peev xwm (siab ntev / tshuaj pleev ib ce), tom qab ntawd geometry thiab xau{1}} nruj.
Khoom siv rooj vag
Stainless / qis- alloy / superalloy xav tau? → Pib nrog kev nqis peev Casting.
Al/Zn/Mg/Brass puas tau? → Nkag mus rau Volume / Muaj peev xwm.
Lub ntim txhua xyoo & daim -nqi rhiab heev
Cov ntim siab (piv txwv li, 50k + / xyoo) lossis cov khoom txhoj puab heev - nqi phiaj? → Nyiam Tuag Casting; txheeb xyuas qhov tuag tonnage, rooj vag, thiab kab noj hniav suav.
Nruab nrab ntim (piv txwv li, 3k–40k/yr) nrog cov khoom nruab nrab-nqi rhiab heev? → Ntsuas Pwm tas mus li ua ntej; piv nrog Die Casting yog tias nyias phab ntsa / tshuaj pleev ib ce dominate.
Tsawg ntim / nquag hloov pauv? → Favor Investment Casting (tsawg dua kev pheej hmoo), lossis Pwm tas mus li yog tias alloy yog Al / Mg thiab qhov ntom ntom.
Tolerance & chav kawm tshuaj pleev ib ce
Tight raws li - nrum tolerances / nyias phab ntsa / cosmetic Class A nto? → Tuag Casting (xav txog lub tshuab nqus tsev vacuum rau porosity-sensitive finishes thiab sealing av).
Kev kam rau nruab nrab nrog qhov tseem ceeb ntawm cov qauv kev ncaj ncees / qhov ntom ntom? → Pwm tas mus li.
Looser raws li - nrum kam rau ua tau nrog machining cleanup npaj? → Kev nqis peev Casting.
Geometry & undercuts
Intricate intricate passages/organic shapes/undercuts uas tawg swb suav? → Kev nqis peev Casting nrog ceramic / soluble cores.
Ncaj rub nrog txwv undercuts; nruab nrab cores OK? → Pwm tas mus li.
Ntau sab nta ua tau nrog slides/lifters; luv, txhav cores? → Tuag Casting.
Siab-tightness & tiav
Leak-tight (piv txwv li, lub twj tso kua mis / lub valve):
Tuag Casting: qhia meej lub tshuab nqus tsev, qhov cua / dej ntws tawm, tshuab- foob av; validate nrog X-ray / CT thiab kev xeem xau.
Pwm tas mus li: kev sib sau ua kom zoo thiab pub mis zoo feem ntau ntsib nruj nrog qhov rooj zoo; ntxiv machining Tshuag rau grooves.
Peev Casting: cia siab rau nce / pub; xav txog HIP rau qhov tseem ceeb ntawm cov hlau.
Ua tiav:
Anodize Class A ntawm Al: nyiam Tuag Casting nrog porosity tswj los yog Pwm tas mus li yog tias tuab dua.
Electropolish / passivation ntawm SS: Peev Casting.
Cov lus sib piv
Ntawm -ib - Kev Sib Txuas Saib
| Metric | Tuag Casting | Kev nqis peev Casting | Permanent Pwm Casting | Sau ntawv |
|---|---|---|---|---|
| Filling txoj kev | Siab -siab, siab -kev txhaj tshuaj | Lub ntiajteb txawj nqus ncuav mus rau hauv expendable ceramic plhaub | Lub ntiajteb txawj nqus / qaij lossis qis -siab rau hauv cov pwm hlau rov siv tau | Tuag siv zog; PM yog calmer sau |
| Tooling hom / nqi | Hardened steel tuag; tus nqi siab tshaj plaws; multi-slide xaiv tau | Aluminium / wax tooling + plhaub; tus nqi cuab yeej qis tshaj | Hlau / hlau pwm; nruab nrab tooling nqi | Tus nqi xaj (qis → siab): Kev nqis peev < PM < Tuag |
| Hom phab ntsa | 1.2-2.5 hli; Zn 0.6-1.5 hli; Mg 1.0-2.0 hli | 2.5–6.0 mm (cov ntaub ntawv -dependent) | Al 3.0–6.0 mm (geometry-nyob) | Tsim kom muaj cov phab ntsa zoo ib yam; zam cov kauj ruam sai |
| Cov chav kawm kam rau ua (raws li -cast, linear) | ≈ ± 0.05–0.20 mm txog 100 mm | ≈ ± 0.25-0.50 mm txog 100 mm | ≈ ± 0.15–0.30 mm txog 100 mm | Tighten los ntawm machining lub ntsej muag tseem ceeb |
| Surface finish (raws li -cast) | Ra ~ 1.5-3.2 µm; Class A ua tau | Ra ~ 3.2–6.3 µm | 2.5-4.0 µm | Finishes sib txawv nrog alloy thiab txheej |
| Qhov ntom / porosity nyiam | Kev pheej hmoo ntawm roj porosity (txo nrog lub tshuab nqus tsev, qhov cua / dej ntws) | Kev noj zaub mov zoo nrog cov risers zoo; HIP xaiv rau steels | Zoo ntom vs xuab zeb; calm filling txo cov pa roj | Qhia meej lub hom phiaj rau kev sib khi / tshuaj pleev ib ce |
| Lub sijhawm voj voog | Seconds mus rau kaum vib nas this | Hnub rau lub plhaub tsim; tag nrho lub lis piam | feeb | Impacts nqi zog heev |
| Volume range (kev lag luam) | Siab ntim; zoo tshaj plaws ntawm 50k + / xyoo | Tsawg- nruab nrab ntim; hloov tau rau kev hloov | Nruab nrab ntim (≈3k–40k/yr) | Hla-txawm yog nyob ntawm cov cuab yeej amortization |
| Khoom siv | Al, Zn, Mg (Cu-raws li txwv) | Al, steels / stainless, Ni / Co superalloys, tooj dag / tooj | Al, Mg, tooj dag/bronze | Khoom siv feem ntau txiav txim siab txheej txheem |
Material & Finish Compatibility Matrix
| Alloy Tsev Neeg | Anodize (Type II/III) | Plating (Ni / Cr / Zn thiab lwm yam) | Painting / hmoov | Passivation (SS) | Thaum tshav kub kub kho Feasibility |
|---|---|---|---|---|---|
| Aluminium (Al-Si, Al-Mg) | Yog (nrog kev npaj) | Xaiv | Yog (zoo heev) | N/A | Txwv rau tuag-cast |
| Zinc (Zamak 3/5) | Tsis muaj | Yog (zoo heev) | Yog lawm | N/A | Tsis siv tau |
| Magnesium (AZ91D / AM60) | Tshwj xeeb nkaus xwb | Cov txheej txheem tshwj xeeb | Yog (nrog kev hloov pauv) | N/A | Txwv tsis pub |
| Brass/Bronze (Cu{0}}raws li) | Tsis muaj | Yog lawm | Yog lawm | N/A | Txwv tsis pub |
| Cov pa roj carbon/Low-Alloy Steel | N/A | Yog lawm | Yog lawm | N/A | Yog lawm |
| Stainless hlau (300/400) | N/A | Yog (nrog kev npaj) | Yog lawm | Yog lawm | Yog lawm |
| Ni/Co Superalloys | N/A | Xaiv | Yog (siab-temp) | N/A | Yog lawm |
Kev lag luam daim ntawv thov & Case Snapshots
Xaiv txoj kev casting them nyiaj thaum nws raug khi rau qhov kev siv tiag tiag thiab cov txiaj ntsig ntsuas tau. Cov snapshots hauv qab no ua raws li ib qho yooj yim arc- teeb meem → txheej txheem xaiv → quantified tshwm sim- hla peb lub ntsiab sectors.
Khoom Description
Automotive
01
Kev xa tawm / EDU vaj tse - nyias- phab ntsa, siab rov ua dua
Problem: Tight positional tolerances on bearing bores and sealing faces; aggressive weight targets; annual volume >100k.
Cov txheej txheem xaiv: Tuag casting (Al, txias-chamber) nrog kev pab lub tshuab nqus tsev, ntau-kab noj hniav, thiab cov khoom siv ua haujlwm siab rau datums.
Qhov tshwm sim: Phab ntsa txo los ntawm 3.5 hli (lub hauv paus xuab zeb casting) mus rau 2.2 hli, huab hwm coj qis 11%, CT scan porosity hauv cov av sib khi<0.5%, machining time per part –18%, and piece price –12% after tooling amortization at 18 months.
02
Teeb pom kev zoo hauv paus thiab brackets - tshuaj pleev ib ce + thermal pat
Teeb meem: Pom pom qhov chaw nrog Class A xim, lub tshav kub hauv zos los ntawm LEDs, thiab IP67 sealing.
Kev xaiv txheej txheem: Tuag casting (Al / Zn) rau kev kho kom zoo nkauj fidelity; cov thawj coj thiab O- nplhaib grooves sab laug nrog machining Tshuag; e-coat + hmoov topcoat.
Qhov tshwm sim: Cosmetic reject rate muaj rau<1.5% with vacuum + overflow re-layout, leak test first-pass yield >99%, sib dhos torque scatter -25% vim yog tus thawj coj zoo sib xws.
03
Suspension knuckle (Al) - ntom thiab toughness ua ntej
Teeb meem: qaug zog kev ua tau zoo thiab tsis xws luag kam rau ua; nruab nrab txhua xyoo ntim (~ 20k).
Txheej txheem xaiv: Pwm mus tas li (Al) nrog qaij- ncuav, txias rau ntawm tus ntxaiv, thiab kho cua sov.
Result: Density improved vs sand (radiographic class improved by one grade), static strength +8–10%, machining stock –30%, and scrap –40%; tag nrho tus nqi -9% ntawm qhov ntim no piv rau qhov tuag-ntaus lwm qhov uas yuav tsum tau siv lub tshuab hnyav.
04
Exhaust brackets/heat-cov khoom tiv taus - stainless yuav tsum tau
Teeb meem: 700-800℃ib puag ncig hauv zos, nyias nta, ntim nruab nrab.
Kev xaiv txheej txheem: Kev nqis peev casting (stainless) nrog tswj lub plhaub tsim thiab tom qab-kev kho cua sov.
Result: Stable geometry post-HT (flatness CpK >1.33 tom qab kev kho cov txheej txheem), suav nrog -20% vim qhov zoo dua nyob ze -net nta, thiab kev huv huv ntawm ntsev- tshuaj tsuag / cua sov caij tsheb kauj vab.
Electronics / 3C
EMI-cov ntaub thaiv npog - nyias- phab ntsa nrog nta
Teeb meem: Qhov hnyav lub kaus mom, lub rooj tsavxwm khaws- tawm, cov thawj coj zoo, cov xov ntxig ntxig, thiab qhov ua tiav tiav.
Cov txheej txheem xaiv: Tuag casting (Al / Zn), lub tshuab nqus tsev rau porosity tswj hauv qab lub ntsej muag kom zoo nkauj; molded-nyob rau hauv inserts qhov twg ua tau.
Result: Wall 1.2–1.5 mm, enclosure mass –14%, as-cast Ra ≤3.2 µm supporting paint-only (no heavy putty), thread pull-out >2 × spec nrog knurled inserts; Lub voj voog sib dhos -10% los ntawm kev txhim kho datum zoo.
Kub dab dej / baseplates - zoo ib yam thermal txoj kev
Teeb meem: Cov fin suav suav, flatness thiab TIM av coplanarity; nruab nrab - mus rau - siab ntim.
Txheej txheem xaiv: Tuag casting rau nyias fins; Pwm tas mus li thaum fin qhov siab yog me me tab sis ceev thiab flatness tsav lub spec.
Qhov tshwm sim: Nrog tuag casting + ncej- tshuab skim, TIM av flatness Tsawg dua los yog sib npaug rau 0.05 hli, thermal kuj -7% piv rau extruded puag (ua tsaug rau hneev taw kev ywj pheej), thiab daim nqi -8% ntawm 60k / xyoo. PM txoj kev siv rau 10k/yr variant los tsoo tawm -tightness nrog qis porosity txaus ntshai.
Muaj / Valve / Pump
Stainless valve lub cev - siab ciam teb
- Teeb meem: Siab- nruj stainless, sab hauv qhov chaw geometry, thiab corrosion yuav tsum tau; qis-rau- nruab nrab ntim.
- Kev xaiv txheej txheem: Peev casting (CF8M / 316) nrog riser / pub optimization; HIP rau cov chav kawm siab tshaj plaws.
- Cov txiaj ntsig: Casting scrap<2% post-optimization, leak failures contained to <0.3% at 100% test, machining stock –20% via core refinement, and total lead time –25% compared to a fabricated/machined assembly.
Cov twj tso kua mis / lub cev muaj zog (Al/Al{0}}bronze) - xau- nruj nrog cov phab ntsa nruab nrab
- Problem: Consistent density in thicker sections, gasket grooves, and bearing bores; 5k-25k / xyoo.
- Cov txheej txheem xaiv: Pwm tas mus li nrog qis -siab sau lossis qaij- ncuav; hauv zos txias txias thiab tswj txheej.
- Result: Leak FPY >98% without impregnation, bore roundness CpK >1.67 tom qab gating re- sib npaug, lub sijhawm ua haujlwm -15%, thiab TCO -7% vs xuab zeb casting.
Explosion-cov ntaub ntawv pov thawj - tshuaj pleev ib ce thiab sealing
- Teeb meem: Chav Kawm A sab nraud nrog rau kev ua haujlwm tsis zoo; sib xyaw ntau qhov ntau thiab tsawg.
- Cov txheej txheem xaiv: Tuag casting (Al) rau siab - ntim SKUs; Pwm tas mus li rau nruab nrab - ntim hloov pauv nrog cov ntu tuab.
- Cov txiaj ntsig: Kev sib koom ua ke kev sib koom ua ke thoob plaws ob txheej txheem (tsim av + thaj chaw porosity) tuav tsis lees paub<0.5%; consolidated finishing reduced color variance >50%.
Sustainability & Ua raws cai
Casting xaiv cuam tshuam rau carbon, chemistry, thiab cov ntaub ntawv ntau npaum li tus nqi thiab muaj peev xwm. Tsim cov no rau hauv cov lus qhia tshwj xeeb thiab tus neeg muag khoom ntawm kev ua haujlwm txij hnub ib.
Recycled cov ntsiab lus & hlau rov qab
- Qhia meej cov ntsiab lus tsawg kawg nkaus uas ua tau (piv txwv li, Ntau dua lossis sib npaug li 70% rau Al die castings muab los ntawm cov ntawv pov thawj thib ob).
- Yuav tsum tau kaw-loop runner/scrap recovery thiab record melt poob; credit recycled yield tawm tsam cov nqi khoom siv.
- Rau cov kev pab cuam tooj liab / tooj dag thiab zinc tuag casting, paub meej tias kev tswj xyuas alloy thaum rov ua dua hauv -tsev kom tsis txhob ya raws sab nraud spec.
Zog & txheej txheem efficiency
- Kev ntes thiab sib piv kWh / ib feem hla cov txheej txheem sib tw thaum lub sij hawm sim- tuag casting yog lub zog- ntom nti ib feeb tab sis offsets nrog high throughput; peev casting kis tau lub zog ntawm lub plhaub thiab lub cub tawg; pwm mus tas li feem ntau zaum ntawm.
- Siv cov thermal tswj thiab qaij/tsawg-siab tuag casting profiles kom txo cov seem (khoom seem yog embedded CO₂). Automation uas trims lub voj voog hloov pauv feem ntau them rov qab rau hauv ob lub zog thiab zoo.
Txheej, VOC, thiab chemistry
- Nyiam tsawg-VOC tuag lubricants thiab tswj cov tshuaj tsuag; cov ntaub ntawv pov tseg txoj kev.
- Txhawm rau ua kom tiav, qhia chromium- dawb hloov dua siab tshiab txheej yog qhov ua tau; txhais daim npog qhov ncauj kom tsis txhob rework thiab overspray.
- Rau cov kev pab cuam magnesium thiab zinc, yuav tsum muaj corrosion-cov khoom tiv thaiv uas ua tau raws li qhov tsis muaj hex-Cr.
Kev tswj hwm kev ua raws cai & nthuav tawm cov ntaub ntawv
- suav nrog cov lus ua raws cai rau RoHS / REACH thiab, qhov chaw tsheb, IMDS xa nrog cov hlau, txheej, thiab cov roj nplua nyeem raug ntes nyob rau hauv cov nodes raug.
- Yuav tsum muaj kev tsis sib haum xeeb (3TG) kev tshaj tawm los ntawm cov khoom siv hluav taws xob / cov khoom siv hluav taws xob thaum muaj feem xyuam rau cov hlau tsis muaj hlau thiab cov khoom tshwj xeeb.
- Tsim kom muaj traceability: kub / batch tooj ntawm castings los yog ntim; khi rau cov ntaub ntawv soj ntsuam thiab cov ntaub ntawv xau / CT.
Kev Ntsuas Tus Neeg Siv Khoom & RFQ Pob
Tus neeg muag khoom raug txo qis lub sijhawm pib, tiv thaiv qhov zoo, thiab txo tus nqi tag nrho ntawm qhov kev pab cuam lub neej. Siv cov ntsiab lus hauv qab no los tshuaj xyuas lub peev xwm thiab tsim qauv RFQ uas ua rau muaj txiaj ntsig zoo sib xws, kev txiav txim siab -cov lus npaj txhij.
Dab tsi los nug cov neeg muag khoom (muaj peev xwm tob tob)
Tonnage & tshuab
Tuag casting: tonnage spectrum (piv txwv li, 160-1250 T), suav los ntawm tonnage, kub- vs txias-chamber muaj, lub tshuab nqus tsev tuag casting muaj peev xwm, ntau-slide kev.
Pwm tas mus li: pwm txwv qhov loj me, qaij- nchuav thiab qis- kev xaiv siab, kev tswj kom txias / txheej txheej, tswj qhov kub thiab txias.
Kev nqis peev casting: cov tsev neeg hlau (Al, carbon / qis-alloy, stainless, Ni / Co superalloys), plhaub cov ntsiab lus (slurry, stucco ntau thiab tsawg), autoclave / burnout muaj peev xwm.
Automation & kev xa tawm
Ladling/spray/extraction automation, robotic trimming, in -cell deburr, visions checks, SPC on shot data; OEE metrics thiab lub sij hawm voj voog ib txwm rau qhov zoo sib xws.
Inspection & NDT
X-txoj kab hluav taws xob / CT daws teeb meem thiab ib lub hnab ntawv, cov txheej txheem xau thiab kev txwv, metrology (CMM qty thiab ntim), NDT rau steels (PT/MT/UT), gage R&R xyaum.
Hauv - tsev tiav
Kev kho cua sov (cov lus qhia thiab cov khoom thauj), anodize / plating / xim muaj peev xwm lossis tsim nyog subs; kev tswj qhov ncauj qhov ntswg / huv si; da dej saib xyuas thiab ntawv pov thawj.
Quality system & traceability
Cov ntawv pov thawj (ISO 9001, IATF 16949, AS9100 raws li muaj), cov ntaub ntawv tswj kev npaj / PFMEA / MSA, ntau / tshav kub traceability thiab cov ntaub ntawv tuav txoj cai.
Sustainability & logistics
Cov ntsiab lus siv rov ua dua tshiab, seem rov qab lub voj, lub zog taug qab (kWh / ib feem). Lub sijhawm tsim cov cuab yeej, T1 / FAI / PPAP lub sijhawm ua haujlwm, muaj peev xwm tsis muaj peev xwm, EOQ kev taw qhia.
RFQ daim ntawv txheeb xyuas (xa nrog koj cov ntawv luam tawm)
Tsim pob
3D qauv (native + STEP) thiab 2D kos duab nrog GD&T; parting kab nyiam, gating/overflow khaws- tawm tsam yog muaj.
Khoom spec thiab cua sov- kho mob; chav kawm tshuaj pleev ib ce / nto tiav (Ra lossis qib pom kev).
Txhua xyoo ntim & ntau ntau; ramp profile thiab EAU kev ntseeg siab qib.
Tseem ceeb-rau-Cov yam ntxwv zoo (CTQs), qhov siab ntawm qhov siab, qhov tsawg kawg nkaus phab ntsa thiab cov av sib khi.
Xov/ntse, gages/functional test callouts, and datum strategy notes.
Cov txheej txheem & xeem cov cai
Cov txheej txheem nyiam (Tuag / Kev nqis peev / Pwm tas mus li) yog tias muaj kev txwv; txwv tsis pub tus neeg muab kev pom zoo nrog cov laj thawj.
Leak test limits thiab method, X-ray/CT sampling, NDT scope for steels; xav tau ntawv pov thawj thiab cov qauv loj.
Tiav: anodize/plating/paint stack, masking, color/texture chips, corrosion exposure or salt-spray targets.
Kev lag luam & logistics
Cov cuab yeej hais cais nrog lub neej cia siab thiab khoom seem; lub hom phiaj thiab ncab lub sij hawm ua rau T1 / FAI / PPAP.
Packaging/labeling spec (trays, VCI/returnables, barcode/2D code), Incoterms/ship-rau, palletization.
Cov nqe lus zoo: PPAP / FAI qib, lub hom phiaj muaj peev xwm (Cp / Cpk), kev tuav pov hwm / 8D lub sijhawm ntawm kev khiav tawm, khaws cia.
Thov breakout pricing: cov khoom, sib sau, machining, xov, tshuaj xyuas, ntim, logistics, tooling amortization.
FAQs
Q: Dab tsi yog qhov tsawg kawg nkaus phab ntsa thickness los ntawm cov txheej txheem thiab cov khoom siv?
A: Tuag Casting: Al 1.2–2.5 mm (lub zos tav toj mus rau ~ 1.0 mm yog luv txaus), Zn 0.6–1.5 mm, Mg 1.0–2.0 mm. Lub peev xwm nyob ntawm qhov rooj nrawm, qhov kub thiab txias, thiab lub tshuab nqus tsev. Peev Casting: Feem ntau 2.5-6.0 mm (Al thiab steels). Cov npoo zoo heev tuaj yeem ua tau, tab sis kev pub mis thiab lub plhaub lub zog ua rau qis dua -xav machining yog tias koj thawb nyias. Permanent Pwm Casting: Al 3.0-6.0 mm raug. Calmer sau nyiam soundness dhau heev nyias-phab ntsa; siv qaij/tsawg-siab variants kom mus txog qhov kawg.
Q: Vim li cas tuag casting tsis tshua siv rau cov hlau?
A: Hlau melting kub thiab reactivity yuav rhuav tshem tuag thiab txhaj tshuaj kho mob sai, ua rau cov txheej txheem uneconomic. Tuag casting lub hom phiaj tsis yog -ferrous alloys (Al/Zn/Mg/Brass) uas nws melts kub thiab fluidity nplua steel tuag thiab siab - txhaj tshuaj.
Q: Puas tuaj yeem nqis peev- cov khoom pov tseg tuaj yeem ua tiav cov lus qhia nruj nruj?
A: Yog, nrog rau txoj cai rooj tog / nce thiab kho cua sov. Rau lub cev lub cev tsis muaj zog, zoo- cov khoom noj khoom noj niaj hnub dhau 100% huab cua lossis siab- kev kuaj lwj. Rau cov chav kawm muaj kev ncaj ncees siab tshaj plaws, HIP (kub isostatic nias) kaw nrog porosity. Txhais kev ntsuas siab, txwv (sccm lossis mbar·L / s), lub sijhawm ruaj khov, thiab cov ntsaws ruaj ruaj hauv cov ntawv luam tawm. Thaum twg kuv yuav tsum xaiv lub tshuab nqus tsev tuag casting vs pwm mus tas li rau siab- nruj qhov chaw? Xaiv lub tshuab nqus tsev tuag casting thaum koj tseem xav tau cov phab ntsa nyias, cov tshuaj pleev ib ce siab, lossis ntim siab. Lub tshuab nqus tsev txo cov roj porosity ze ntawm cov av sealing; ua ke nrog cov dej ntws thiab xa tawm - tshuab foob ntsej muag. Xaiv cov pwm mus tas li thaum cov ntu nruab nrab / tuab thiab ntom / lub zog muaj zog tshaj cov tshuaj pleev ib ce, lossis thaum cov ntim nruab nrab thiab tuag- cov cuab yeej ROI yog marginal.
Q: Kev kho cua sov thiab vuam sib txawv li cas hauv cov txheej txheem?
A: Tuag Casting (Al): kev kho cua sov yog txwv vim tias cov roj nkag tuaj yeem ua rau hlwv; tshwj xeeb alloys thiab lub tshuab nqus tsev pab. Vuam yog ua tau tab sis tsim nyog rau ib qho kev sib koom ua ke -pre- huv si thiab cia siab tias yuav tswj cov porosity hauv zos. Kev nqis peev Casting: Steels thiab superalloys feem ntau yog kho cua sov rau spec; vuam thiab kho yog niaj hnub nrog cov txheej txheem raug. Pwm tas mus li (Al/Brass): Kev kho cua sov yog ua tau; tswj distortion nrog fixturing. Vuam ntawm Al PM feem feem ntau zoo dua li siab -porosity tuag castings.
Q: Dab tsi yog qhov tuag / pwm lub neej thiab lawv cuam tshuam tus nqi li cas?
A: Tuag Casting tuag: ~ 150k-1,000k + txhaj tshuaj nyob ntawm alloy, steel, thiab kev saib xyuas. Lub neej ntev ntev txo cov cuab yeej amortized tus nqi ib thooj, uas txhawb nqa cov ntim siab. Cov cuab yeej Pwm tas mus li: feem ntau kaum mus rau tsawg pua pua txhiab lub voj voog; tus nqi qis tshaj qhov tuag, zoo rau nruab nrab ntim. Kev nqis peev Casting: cov cuab yeej nyuaj rau siv quav ciab kuj pheej yig; lub plhaub ceramic yog expendable txhua lub voj voog. Cov cuab yeej muaj qhov cuam tshuam tsawg kawg ntawm daim nqi; kev ua haujlwm thiab lub voj voog dominate.
Q: Kuv yuav tsum npaj siab npaum li cas raws li -cast vs post-machined?
A: Tuag Casting: raws li - nrum ± 0.05–0.20 mm txog ~ 100 mm nta. Tuav datums ntawm cam khwb cia; ncej- tshuab tseem ceeb bores thiab foob av. Kev nqis peev: ± 0.25-0.50 hli raug; npaj machining ntawm mating ntsej muag thiab bores. Pwm tas mus li: ± 0.15-0.30 mm raug; tshuab ua haujlwm haum. Tighten nrog fixtured txiav es tsis compressing casting muaj peev xwm.
Q: Kuv yuav txo qhov porosity qhov twg xim, plating, lossis sealing tseem ceeb?
A: Tuag Casting: qhia meej lub tshuab nqus tsev, lub qhov cua muaj zog / dej ntws tawm, thiab cov khoom siv hauv cheeb tsam ntawm lub ntsej muag sealing. Khaws lub roj tsawg tsawg / sib npaug. Xav txog impregnation tsuas yog qhov chaw kawg. Kev nqis peev / PM: tsim rau kev taw qhia solidification nrog risers / chills; zam qhov chaw kub uas nyob ib leeg. Rau cov hlau, HIP tuaj yeem txo qhov porosity.
Q: Puas yog cam khwb cia- nyob rau hauv xov zoo?
A: Feem ntau, tsis yog rau qhov tseeb lossis thauj khoom -cov kabmob xov. Nyob rau hauv tuag casting, ntxhib cam khwb cia- nyob rau hauv threads yog ua tau tab sis txaus ntshai nyob ze ntawm lub ntsej muag cosmetic; feem ntau cov kev pab cuam kais los yog yob threads ncej -cast. Kev nqis peev thiab PM qhov feem ntau yog siv cov xov los yog cov ntxig (helicoils / keyserts) rau kev pabcuam.
Xaus
Cov txheej txheem xaiv tsis yog hais txog buzzwords- nws yog hais txog kev sib piv Cov Khoom Siv × Volume × Tolerance / Tshuaj pleev ib ce × ntom / Tightness × Lead - sij hawm rau txoj kev tsim khoom uas tuaj yeem xa hnub tom qab.
Yog tias koj xav tau cov phab ntsa nyias, cov tshuaj pleev ib ce siab, thiab cov khoom siv siab hauv Al / Zn / Mg, xaiv Die Casting (xws li lub tshuab nqus tsev thiab lub qhov cua kom zoo / ntws rau kev sib khi thiab xim).
Yog hais tias qhov tseem ceeb yog suab, ntom ntu ntawm nruab nrab ntim nrog Al / Brass thiab cov phab ntsa tsim nyog, Permanent Pwm muab txoj hauv kev ruaj khov, kev lag luam.
Yog tias koj tus qauv tsim xav tau stainless/steel/superalloys los yog intricate geometry nyob rau hauv qis - mus rau - nruab nrab ntim, Peev Casting muab cov metallurgy thiab zoo li kev ywj pheej kom tau raws li spec.
Npaj txav los ntawm kev xav mus rau tus lej? Xa koj 3D + 2D luam tawm thiab lub hom phiaj ntim, thiab peb yuav xa rov qab cov txheej txheem kev pom zoo nrog DFM snapshot thiab kab - yam khoom RFQ template koj tuaj yeem muab rau cov neeg xa khoom. Qhov no ua rau koj mus rau cov lus sib piv-thiab rau qhov kev txiav txim siab zoo- nrawm dua.
