Wb tham txog qhov tsis tshua muaj siab xuab zeb casting. Nws yog feem ntau nkag siab yuam kev, txawm tias qee tus neeg hauv kev lag luam. Nws tsis yog tsuas yog lub ntiajteb txawj nqus xuab zeb casting tab sis nrog me ntsis ntawm huab cua. Lub tswv yim tseem ceeb yog siv cov kev tswj hwm, cov pa roj tsawg-feem ntau cov cua qhuav lossis cov pa roj tsis zoo-kom thawb cov hlau molten mus rau hauv lub raj xa mus rau hauv cov xuab zeb pwm kab noj hniav hauv qab no. Lub siab yog tswj kom txog thaum lub casting solidifies. Qhov loj tshaj misconception? Tias nws tsuas yog rau qhov yooj yim, tsis yog qhov tseem ceeb. Kuv tau pom qhov kev xav tau ua rau ntau tshaj ib txoj haujlwm ua tsis tiav.
Mechanics thiab qhov twg nws haum
Kev teeb tsa zoo li yooj yim: lub qhov cub kaw tuav lub yaj, ib lub raj riser dipping rau hauv nws, thiab cov xuab zeb pwm clamped rau saum. Koj siv tej zaum 0.5 rau 1 bar ntawm siab. Nws yog qhov maj mam thawb uas ua rau qhov sib txawv. Tsis zoo li lub siab tuag casting, koj tsis yuam cov hlau nyob rau hauv siab tshaj tawm, uas txhais tau hais tias tsis tshua muaj turbulence, tsawg dua gas entrapment, thiab zoo metallurgical kev ncaj ncees. Kev tswj kev sau los ntawm hauv qab mus rau hauv qab kuj txhawb kev taw qhia kev sib zog ntawm lub taub hau pub, uas yog qhov loj rau kev ua kom zoo.
Yog li qhov twg nws ci? Nws yog qhov zoo heev rau nruab nrab-ntim khiav ntawm qhov chaw uas xav tau zoo dua li cov qauv ntsuab xuab zeb casting tab sis tsis txhob ua rau tus nqi peev casting rau tag nrho batch. Xav txog tej yam xws li aluminium alloy vaj tse rau compressors, qee yam khoom siv hauv tsheb, lossis qee qhov loj dua gearbox casings. Nws yog qhov nruab nrab. Tuam txhab uas muag nyiam Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nrog rau lawv lub xyoo caum nyob rau hauv lub plhaub thiab peev casting, yuav saib tsis tshua muaj siab xuab zeb casting raws li ib tug ntxiv txheej txheem rau cov neeg xav tau kev pab tshwj xeeb qhov twg lawv lwm txoj kev tej zaum yuav overkill los yog tsis zoo rau lub geometry.
Koj tsis tuaj yeem cuam tshuam ib feem tsim ntawm nws, txawm li cas los xij. Kev tsim lub rooj vag yog qhov tseem ceeb - nws yog txhua yam hais txog qhov ib leeg, hauv qab lub rooj vag. Yog hais tias ib feem muaj nyias nyias nyob deb ntawm lub rooj vag, tej zaum koj yuav khiav mus rau hauv premature solidification teeb meem. Koj xav tau kev nkag siab zoo ntawm thermal gradients. Qhov no tsis yog txheej txheem ncuav thiab thov Vajtswv; nws yog ib tug xam, tswj, thiab saib xyuas ib tug.
Kev txiav txim siab ntawm cov khoom thiab txheej txheem Nuances
Thaum peb pom nws feem ntau nrog txhuas thiab magnesium alloys, nws muaj feem xyuam rau qee qhov tooj liab-raws li alloys thiab txawm tias qee yam cam khwb cia hlau. Qhov tseem ceeb yog cov hlau fluidity thiab yuav ua li cas nws reacts rau qeeb, pressurized sau. Piv txwv li, nrog txhuas, koj tau txais cov cuab yeej zoo heev vim tias qhov chaw nyob ntsiag to txo qis kev tsim oxide. Tab sis koj yuav tsum tau ceev faj txog kev huv ntawm hlau. Txhua lub slag los yog dross nyob rau hauv lub cub tawg tau raug thawb mus rau hauv pwm. Ib qho zoo filtration system nyob rau hauv lub riser raj los yog ntawm lub rooj vag yog tsis-negotiable.
Cov xuab zeb nws tus kheej yog lwm qhov sib txawv. Peb feem ntau yog tham txog cov xuab zeb-pob zeb-zoo li phenolic urethane los yog sodium silicate-kom zoo dua qhov seem stability thiab nto tiav. Lub zog pwm yuav tsum tau tiv thaiv lub siab yam tsis muaj kev cuam tshuam, tab sis nws kuj xav tau qhov permeability txaus kom cia huab cua khiav. Nws yog qhov sib npaug. Kuv nco qab txog ib txoj hauj lwm rau lub twj tso kua mis uas peb siv zircon xuab zeb tig rau ntawm kab noj hniav los tuav lub thermal shock thiab tau ib qho smoother li-cam khwb cia nto. Nws ua haujlwm, tab sis nws ntxiv nqi. Txhua qhov kev txiav txim siab yog kev sib pauv.
Kev tswj siab yog qhov kos duab tiag tiag. Qhov nkhaus tsis yog nyob rau thiab tawm xwb. Tej zaum koj yuav muaj lub zog qeeb qeeb los pib cov hlau txav mus rau hauv lub raj yam tsis muaj txaws, lub ntsiab lus tseem ceeb, lub zog txhawb siab kom pub shrinkage, thiab tuav. Tau txais qhov profile tsis raug txhais tau hais tias yog mistuns lossis pwm yaig. Peb tau sau cov ntaub ntawv los ntawm txhua qhov kev txhaj tshuaj - siab, lub sijhawm, qhov kub thiab txias - thiab cuam tshuam nrog cov txiaj ntsig X-ray. Sij hawm dhau mus, koj tsim kev xav rau nws, tab sis cov ntaub ntawv yog dab tsi tiv thaiv cov khoom seem.
Kev sib tw tiag tiag hauv ntiaj teb thiab daws teeb meem
Ntawm no yog ib tug tswv yim mob taub hau: lub riser raj, los yog stalk. Nws zaum nyob rau hauv lub molten hlau da dej, yog li nws raug kev txom nyem heev thermal cycling thiab corrosion. Yog tias nws ua tsis tau, koj muaj qhov xau loj. Peb tau sim nrog cov khoom sib txawv refractory rau lub raj hauv ob sab phlu. Qee qhov tawg yooj yim heev, lwm tus tau hnov mob nrog cov hlau. Nrhiav ib tus neeg muag khoom uas nkag siab txog cov kev xav tau tshwj xeeb thermal thiab tshuaj lom neeg yog qhov project hauv nws tus kheej. Nws yog cov khoom tseem ceeb no uas tuaj yeem ua lossis tawg koj qhov kev ntseeg siab ntau lawm.
Lwm qhov teeb meem hloov maj mam yog qhov txias txias. Vim tias cov pwm tau sau los ntawm cov hlau kub thiab nyob rau hauv siab, cov qauv solidification tuaj yeem sib txawv. Rau cov neeg siv khoom xav tau ib qho tshwj xeeb hardness profile ntawm aluminium ncua kev kawm tivthaiv, peb yuav tsum tweak lub pwm txias los ntawm kev tso cov cua txias fins rau hauv lub tsho pwm thiab kho lub sij hawm tuav. Nws coj ob peb iterations. Thawj ob peb pawg tau cais cov shrinkage porosity nyob rau hauv ib tug tuab mounting thawj coj. Qhov kev kho tsis yog siab dua, tab sis kev hloov pauv mus rau cov pwm hauv zos geometry los tsim txoj hauv kev zoo dua thermal. Cov kev daws teeb meem hauv phau ntawv kawm feem ntau xav tau kev hloov kho.
Kev tso pa tawm yog qhov tseem ceeb tab sis tsis yooj yim. Txij li thaum cov hlau nce mus rau hauv cov kab noj hniav, huab cua yuav tsum khiav mus rau sab saud. Qhov chaw tsis txaus los yog qhov chaw tsis zoo ua rau muaj kev rov qab los, ua rau cov khoom ntim tsis tiav lossis cov hnab ntim roj. Kuv nco qab txog ib qho kev sib tw manifold uas peb tau txais tshuab nyob ze rau saum. Peb ntxiv cov vents ntxiv, tab sis qhov teeb meem tshwm sim. Tig tawm cov qhov cua tawm me me dhau lawm thiab tau raug thaiv los ntawm condensed resin los ntawm cov xuab zeb binder. Enlarging lawv thiab ua kom ib tug ncaj, qhib txoj kev daws nws. Nws ib txwm yog tej yam yooj yim uas koj saib dhau.
Economic thiab Application Trade-offs
Puas yog nws pheej yig dua li peev casting? Rau qhov tsim nyog, kiag li, tshwj xeeb tshaj yog ntawm qhov loj me. Cov cuab yeej-tus qauv rau kev ua cov xuab zeb pwm-tsis tshua kim tshaj qhov kev txhaj tshuaj wax tuag thiab ceramic plhaub rau peev casting. Tus nqi pwm ib feem yog siab dua nyob rau hauv high-pressure tuag casting, tab sis cov cuab yeej peev nqi qis dua. Nws yog txheej txheem rau nruab nrab hauv av: txhua xyoo ntim los ntawm ob peb puas rau tej zaum 20,000 daim, nyob ntawm qhov loj me thiab qhov nyuaj.
Qhov twg nws yeej yeej yog ntawm cov khoom yield. Lub riser raj feem ntau yog ib feem ntawm lub qhov rooj kaw qhov rooj, thiab cov hlau tsis muaj dej ntws rov qab rau hauv qhov cub thaum koj tso lub siab. Tawm tuaj yeem ntaus 85-95%, piv rau 40-60% hauv qee cov txheej txheem xuab zeb. Qhov ntawd yog kev txuag loj heev ntawm cov khoom kim heev alloys. Rau lub khw zoo li QSY, kev koom ua ke cov txheej txheem zoo li no yuav yog ib qho kev tawm tswv yim los muab cov neeg siv khoom muaj kev ncaj ncees, cov khoom siv tau zoo rau cov khoom nruab nrab, ua kom tiav lawv cov uas twb muaj lawm. plhaub molding thiab peev casting cov kws tshaj lij tau piav qhia hauv lawv qhov chaw tsi.com.
Qhov txwv? Lub sijhawm voj voog. Ua cov xuab zeb pwm, clamping nws, sau thiab solidification nyob rau hauv siab, txias, décor - nws tsis yog ib tug ceev txheej txheem. Nws tsis yog rau ntau lab qhov chaw. Thiab ib feem geometry yog txwv los ntawm qhov xav tau ntawm qhov rooj hauv qab ntawd. Yog tias koj xav tau ntau qhov sib cais nyias nyias noj los ntawm cov ntsiab lus sib txawv, koj yuav xav tau ntau lub riser raj, uas nyuaj rau lub tshuab tsim ntau heev. Qee lub sij hawm, koj tsuas yog yuav tsum qhia tus kws tsim qauv, Cov yam ntxwv no yuav tsum tau txav mus los, lossis peb yuav tsum xaiv cov txheej txheem sib txawv.
Xaus Kev Xav los ntawm Kev Paub
Tsawg siab xuab zeb casting tsis yog cov mos txwv khawv koob. Nws yog ib qho cuab yeej muaj zog nyob rau hauv lub foundry's toolbox rau ib qho teeb meem tshwj xeeb. Nws tus nqi yog nyob rau hauv kev xa cov castings nrog qhov zoo ntawm qhov raug, zoo heev metallurgical zoo, thiab cov khoom siv siab heev rau cov khoom uas xav tau me ntsis rau cov xuab zeb casting. Txoj kev kawm nkhaus yog qhov tob - nws yog hais txog kev nkag siab txog kev sib cuam tshuam ntawm qhov siab, qhov kub thiab txias, solidification, thiab pwm tsim.
Kuv puas tuaj yeem pom zoo rau txhua txoj haujlwm? Tsis yog. Rau cov ntim siab, me me aluminium qhov chaw, tuag casting yeej. Rau ultra-complex, super-alloy turbine hniav, nws yog peev casting. Tab sis rau lub cav fais fab, qhov kis tau tus mob, los yog lub twj tso kua mis loj uas muaj kev ntseeg siab yog qhov tseem ceeb thiab qhov ntim nruab nrab, nws yog qhov kev xaiv ntse tshaj plaws. Nws xav tau kev hwm rau cov txheej txheem sib txawv. Tau txais lawv txoj cai, thiab koj tsim qhov ze-net-puab qhov chaw nrog tsawg kawg machining Tshuag thiab cov khoom zoo. Tau txais lawv yuam kev, thiab koj muaj txoj hauv kev kim heev los ua cov khoom seem.
Thaum kawg, txoj kev vam meej los ntawm kev paub txog cov txheej txheem engineering thiab kev tswj xyuas nruj. Nws zoo nkaus li yooj yim ntawm daim ntawv-tsuas yog qhov tsis tshua muaj siab-tab sis dab ntxwg nyoog, ib txwm muaj, nyob hauv cov ntsiab lus. Cov khw uas ua tau zoo, cov uas koj yuav tso siab rau ib qho tseem ceeb, yog cov uas tau teev cov sij hawm, kawm los ntawm cov misruns, thiab tsim qhov tob, yuav luag intuitive tuav ntawm yuav ua li cas cov hlau yuav coj li cas nyob rau hauv uas maj mam, persistent thawb.
