Cov ntsiab lus: Cov lus qhia ua tau zoo no rhuav tshem cov peev txheej kev lag luam tsis zoo hauv paus ua rau thiab cov txheej txheem tswj tau zoo, pab pawg ua haujlwm txhim kho ib feem tawm los thiab xaiv cov khoom tsim nyog.
Rau cov engineers thiab industrial buyers, peev casting - kuj paub dav li poob ciab casting - feem ntau tsis meej pem nrog lub ntsiab lus dav precision casting.
Ntau tus neeg siv tshawb nrhiav cov ntsiab lus sib hloov pauv, tab sis qhov sib txawv tseem ceeb thaum koj xav tau teeb tsa qhov kev cia siab zoo.
Kev nqis peev casting tshwj xeeb yog hais txog cov txheej txheem ntawm kev tsim cov khoom siv cov khoom siv pov tseg pov tseg coated hauv cov khoom siv refractory ceramic.
Poob ciab casting piav qhia txog tib cov txheej txheem tseem ceeb, thaum precision casting yog lub ntsiab lus dav dav npog ntau qhov ze-net-zoo li txheej txheem tsim, nrog peev casting ua ib ceg loj.
Cov lus qhia no tsom mus rau qhov tsis xws luag thiab kev tswj hwm kev sib tw tshwj xeeb rau kev nqis peev casting workflow, es tsis yog rov ua cov lus piav qhia ntawm cov txheej txheem precision casting.
Rau cov pab pawg uas tab tom nrhiav rau cov keeb kwm yav dhau los ntawm cov txheej txheem tseem ceeb, koj tuaj yeem xa mus rau peb cov lus qhia tag nrho rau kev poob siv tshuab casting.
Feem ntau cov peev txheej Casting tsis xws luag thiab lawv cov hauv paus ntsiab lus
Txawm tias muaj cov txheej txheem tsim tau zoo, cov peev txheej casting feem ntau txhim kho qhov tsis xws luag uas tsis tuaj yeem pom kom txog rau thaum kev tshuaj xyuas zaum kawg.
Feem ntau ntawm cov teeb meem no tsis tshwm sim. Lawv taug qab rov qab mus rau cov ntsiab lus tshwj xeeb uas tswj tau hauv cov qauv tsim, plhaub tsim lossis nchuav.
Kev nkag siab txog cov hauv paus hauv paus ua rau pab pawg txo qis rov ua haujlwm dua thiab tsis txhob lees txais cov khoom tsis raug.
Gas Porosity thiab suav nrog
Gas porosity zoo nkaus li me me sib npaug voids ntawm lossis qis dua ntawm qhov chaw, feem ntau tsuas yog tshwm sim tom qab machining.
Nws feem ntau tshwm sim thaum muaj roj nyob rau hauv lub plhaub ceramic tsis khiav ceev txaus thaum lub sij hawm molten hlau filling, ib qho teeb meem tshwm sim thaum tsim complex stainless hlau impeller castings.
Tej yam tshwm sim muaj xws li lub plhaub tsis txaus permeability, noo noo ntau dhau hauv cov ntaub ntawv refractory, los yog nchuav cov hlau ntawm qhov kub ceev uas nqus cua hauv pwm.
Cov khoom suav nrog yog cov khoom tsis yog xim hlau txawv teb chaws kos rau hauv qhov casting.
Lawv feem ntau yog los ntawm tawg tawg tawg tawg thaum lub sij hawm pouring, unburned residual tshauv nyob rau hauv lub pwm tom qab siv quav ciab burnout, los yog impurities tov rau hauv cov hlau molten ua ntej pouring.
Tsis zoo li cov porosity nyob ib puag ncig, qhov loj embedded inclusions tuaj yeem ua rau qhov kev npaj txhij txog tsis ua haujlwm nyob rau hauv cyclic load.
Shrinkage Cavity thiab Micro Porosity
Shrinkage defects daim ntawv thaum molten hlau shrinks ho thaum lub sij hawm solidification yam tsis tau txais cov khoom noj txaus txaus los them nyiaj.
Loj qhib shrinkage kab noj hniav yog qhov yooj yim rau pom ntawm qhov chaw, tab sis micro porosity muab zais rau hauv cov ntu tuab yog qhov teeb meem ntau dua.
Nws feem ntau tsis tshwm sim thaum lub sij hawm soj ntsuam qhov muag pom, thiab tsuas yog xau los yog ua tsis tiav kev ntsuas siab ntev tom qab qhov khoom xa tuaj.
Qhov teeb meem no yuav luag ib txwm taw qhia rau qhov tsis zoo ntawm qhov rooj thiab riser tsim.
Yog hais tias lub solidification sequence tsis ua raws li ib tug meej kev taw qhia los ntawm qhov deb tshaj seem seem rov qab mus rau lub feed riser, cais kub me ntsis yuav inevitably tsim thiab tsim sab hauv shrinkage.
Deg Cracking thiab Distortion
Cov kab nrib pleb thiab qhov sib txawv feem ntau tshwm sim thaum lub caij txias. Tsis sib xws thermal kev nyuaj siab tshaj cov khoom siv lub zog ntawm qhov kub thiab txias.
Qhov teeb meem no tshwj xeeb tshaj yog nyob rau hauv nyias-walled complex geometry qhov chaw, qhov chaw sib txawv phab ntsa txias ntawm tus nqi sib txawv.
Cov kab nrib pleb kuj tuaj yeem qhia tau thaum lub plhaub khob tawm.
Yog tias cov neeg ua haujlwm siv cov khoom siv ntau dhau thaum tshem tawm lub plhaub ceramic, qhov tseem kub kub tuaj yeem tsim cov micro-cracks zais uas tsuas yog nthuav tawm tom qab lub sijhawm ua haujlwm lossis kev pabcuam.
Distortion feem ntau tshwm sim thaum tus qauv siv quav ciab nws tus kheej deforms ua ntej lub plhaub lub tsev, los yog thaum lub casting yog khob tawm thaum nws tseem kub, ua ntej lub thermal stress tau txaus dissipated.
Actionable Investment Casting Quality Controlpoints
Ntau cov peev txheej casting zoo teeb meem tsis tuaj yeem kho tom qab nchuav.
Lub tswv yim tswj tau zoo tshaj plaws yog los tsim cov chaw kuaj xyuas qhov tseeb thoob plaws txhua theem loj ntawm kev tsim khoom, tsis yog tso siab rau tag nrho cov kev tshuaj xyuas qhov kawg.
Txoj hauv kev no ntes tau qhov tsis raug thaum ntxov thiab tiv thaiv tag nrho cov khoom los ntawm kev muab pov tseg.
Pre-production Mould thiab Wax Pattern Inspection
Kev tswj kom zoo pib ua ntej cov hlau yog nchuav. Thawj qhov chaw kuaj xyuas tseem ceeb yog qhov kev tshuaj xyuas thawj zaug wax qauv.
Txawm tias me me qhov yuam kev hauv cov qauv siv quav ciab yuav ua rau ntau ntxiv tom qab lub plhaub tsev thiab cov hlau khov kho, ua rau qhov kawg ntawm kev ua siab ntev.
Kev coj ua qauv yog los tshuaj xyuas thawj tus qauv siv quav ciab los ntawm txhua qhov kev tsim tawm tshiab tawm tsam tag nrho 2D daim duab, tsis yog tsuas yog kuaj xyuas ob peb qhov tseem ceeb.
Cov pab pawg yuav tsum tau xyuas kom meej tias tsis muaj qhov pom ntawm daim tawv nqaij, cov kab ntws los yog cov qauv txhaj tshuaj tsis zoo nyob rau ntawm qhov siv quav ciab, vim tias cov no yuav hloov ncaj qha mus rau qhov kawg hlau nto.
Plhaub Ua thiab Pouring txheej txheem tswj
Qhov no yog qhov feem ntau saib xyuas qhov zoo tshaj plaws rau ntau tus neeg yuav khoom, vim tias cov txheej txheem lub plhaub tau tshwm sim hauv qhov chaw tsim khoom thiab tsis tshua pom rau cov neeg siv khoom.
Tus naj npawb ntawm cov txheej txheej ceramic, lub sijhawm tswj kom qhuav ntawm txhua txheej, thiab qhov kawg ntawm lub plhaub kub kub kub kub tag nrho cuam tshuam ncaj qha rau qhov kawg casting zoo.
Lub sij hawm ziab tsis txaus ntawm cov tsho tiv no ua rau cov tawv nqaij ntub, tsis muaj zog uas yooj yim tawg lossis deform thaum lub sij hawm nchuav.
Tsis tiav wax burnout tawm cov seem carbon nyob rau hauv pwm, uas reacts nrog molten hlau thiab tsim defects nto.
Kev txheeb xyuas tias tus neeg xa khoom ua raws cov txheej txheem txheej txheem ntawm lub plhaub, es tsis txhob maj nrawm ntau lawm kom tau raws li lub sijhawm kawg, yog ib txoj hauv kev txhim khu kev qha tshaj plaws los txo qhov tsis xws luag.
Qhov kawg Dimensional thiab Tsis-destructive Testing
Tom qab casting, khob-tawm thiab ua tiav, theem kawg tshuaj ntsuam xyuas kom paub meej tias cov khoom puas ua tau raws li txhua qhov kev xav tau.
Qhov no yuav tsum suav nrog kev tshuaj xyuas qhov loj me ntawm qhov tseem ceeb ntawm cov mating nto, kev tshuaj xyuas qhov pom ntawm qhov tawg thiab qhov tsis xws luag, thiab qhov kev ntsuas tsim nyog uas tsis muaj kev puas tsuaj raug xaiv raws li qhov kawg ntawm kev siv.
Rau cov khoom siv hauv cov ntawv thov siab lossis lub voj voog siab, cov qauv kuaj xyuas ntxiv suav nrog kev ntsuas qhov ntsuas siab, kev tshuaj ntsuam fluorescent penetrant rau cov kab nrib pleb, thiab qee qhov kev kuaj X-ray txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom qhov tsis pom kev.Koj tuaj yeem kawm paub ntxiv txog cov qauv zoo hauv peb. qhia rau sab saum toj peev casting lwm tus neeg.
Yuav Ua Li Cas Ntsuas Kev Lag Luam Casting Supplier's Real Process Capability
Koj tsis tas yuav mus ntsib ib lub chaw tsim khoom hauv tus neeg los ua qhov kev ntsuam xyuas pib tsim nyog ntawm nws qhov kev tswj kom zoo tiag tiag.
Ntau cov lus nug yooj yim thiab cov ntaub ntawv txheeb xyuas tuaj yeem pab koj lim tawm cov chaw muag khoom uas tsuas yog xa tawm cov khoom tsis zoo sib xws.
- Nug seb lawv puas khaws cov ntaub ntawv txheej txheem rau cov txheej txheem ntawm lub plhaub, qhov kub thiab txias qhov kub thiab txias rau txhua pawg.
- Paub meej tias tus neeg muag khoom puas muab tag nrho thawj tsab xov xwm tshuaj xyuas uas suav nrog cov ntaub ntawv ntsuas qhov ntev, cov ntaub ntawv ntsuas cov khoom thiab cov txiaj ntsig tshuaj xyuas tsis raug rau kev tsim khoom tshiab.
- Nug kom pom cov ntawv tshaj tawm kev tshuaj xyuas thawj zaug tsis ntev los no rau qhov zoo sib xws, kom paub meej tias lawv qhov kev tshuaj ntsuam xyuas qhov tseeb tiag tiag phim koj cov kev xav tau kos duab.
- Paub meej tias lawv cov txheej txheem kev kho tom qab casting muaj xws li kev ntxhov siab, uas ua rau txo qis kev pheej hmoo ntawm kev zais kev cuam tshuam thiab tawg hauv qhov nyuaj ntawm cov alloy.
Thaum koj xav tau los tsim cov peev txheej tsim nyog cov peev txheej casting, tshuaj xyuas cov txheej txheem tswj cov txheej txheem thaum ntxov hauv kev ntsuam xyuas tus neeg muag khoom pab kom tsis txhob muaj ntau qhov kev xav tsis thoob tom qab.
| Hom Tsis Zoo | Cov txheej txheem hauv paus chiv keeb | Txoj Kev Tshawb Xyuas Hauv Tsev Ceev |
| Gas Porosity | Pouring thiab plhaub burnout | Visually soj ntsuam machined nto rau me me rounded voids |
| Kev suav nrog | Plhaub ua thiab hlau melting | Siv cov kev ntsuam xyuas penetrant kom pom cov tawv nqaij uas tsis yog xim hlau nthuav tawm ntawm qhov chaw |
| Shrinkage Cavity / Micro Porosity | Gating tsim thiab solidification | Ua qhov ntsuas qhov ntsuas siab los yog qhov chaw kuaj X-ray ntawm cov ntu tuab |
| Nto Cracking | Txias thiab tshem tawm lub plhaub | Siv kev tshuaj xyuas qhov muag pom kev zoo lossis kev tshuaj xyuas kev nkag mus ntawm cov ces kaum ntse thiab qhov chaw hloov pauv nyias |
| Part Distortion | Ciab qauv thiab tom qab ncuav txias | Sib piv qhov tseem ceeb sib dhos qhov ntev tiv thaiv kev kos duab |
Cov lus nug nquag
Kuv yuav ua li cas thiaj li txo tau qhov kev pheej hmoo ntawm qhov tsis xws luag ntawm qhov kos duab?
Koj tuaj yeem txo qis qis tom qab qhov tsis xws luag los ntawm kev zam kom tsis txhob hloov pauv sai, tsis hloov pauv ntawm phab ntsa tuab, ntxiv qhov sib npaug ntawm cov kaum ntse ntse, thiab sib txuas lus rau koj tus neeg muag khoom uas qhov ntev yog qhov tseem ceeb rau kev sib dhos.
Cov kev tsim kho me me no ua rau cov kev taw qhia solidification yooj yim dua los tswj.
Dab tsi raug qhov ntev kam rau ua tus qauv peev casting ua tiav?
Nyob rau hauv cov txheej txheem tsis-tom qab machining tej yam kev mob, rau feem ntau tus qauv carbon steel thiab tsawg alloy qhov chaw nyob rau hauv 300mm siab tshaj plaws dimension, zoo-tswj peev casting muaj peev xwm tuav kam rau siab nyob ib ncig ntawm ± 0.5mm ib 50mm dimension, tsis tas yuav tsum tau nws kim heev post-casting machining.
Tighter tolerances yog ua tau, tab sis lawv feem ntau yuav tsum tau ntxiv lwm yam sizing hauj lwm tom qab casting.
Cov khoom uas muaj qhov loj dua tag nrho lossis cov khoom siv tshwj xeeb high-alloy tej zaum yuav xav tau kev hloov kho kom haum rau cov neeg siv khoom ua ntej.
