Koj hnov ib qho khoom siv hlau casting thiab cov ntaub ntawv pleev xim rau daim duab zoo meej: ze-net-puab qhov chaw, zoo heev txhua yam khoom, tsawg porosity. Tab sis taug kev mus rau hauv qhov chaw tsim khoom uas tau sim ua kom siv nws, thiab zaj dab neeg tau ntxhov. Nws tsis yog qee cov mos txwv khawv koob; nws yog ib tug txheej txheem uas nyob rau hauv lub qhov rais nqaim heev ntawm kev tswj, thiab tau txais nws tsis ncaj ncees lawm yog kim. Ntau lub khw xav tias nws tsuas yog hais txog qhov kub thiab txias, tab sis nws yog tiag tiag txog qhov semi-solid hlau casting slurry's thixotropic tus cwj pwm - qhov txawv ntawm lub xeev uas nws ntws zoo li cov kua hauv qab shear tab sis tuav cov duab zoo li cov khoom zoo li qub. Ntsia qhov ntawd, thiab koj tau txais ib yam dab tsi. Nco nws, thiab koj tab tom ntsia ntawm ib qho khoom kim heev ntawm cov khoom seem.
Lub tswv yim tseem ceeb thiab qhov twg tib neeg Stumble
Lub hauv paus ntsiab lus yog deceptively yooj yim. Es tsis txhob nchuav cov kua tag nrho cov hlau, koj ua hauj lwm nrog cov hlau nyob rau hauv ib tug mushy, semi-khoom lub xeev, feem ntau nyob ib ncig ntawm 30-50% khoom feem. Cov slurry no ces txhaj rau hauv tuag. Qhov loj misconception? Tias qhov no tsuas yog txias dua casting. Tsis yog. Kev npaj slurry yog txhua yam. Koj yog mus rau txoj kev rheocasting, qhov twg koj txias kua hlau mus rau hauv ib nrab-kheej cheeb tsam thaum nplawm, los yog thixocasting, qhov twg koj pib nrog ib tug tshwj xeeb npaj khoom billet thiab reheat nws. Rheocasting zoo li ncaj qha, tab sis tswj qhov txias thiab kev ntxhov siab kom tau txais ib qho zoo, zoo globular qauv hauv slurry - qhov no yog qhov kos duab. Kuv tau pom cov teeb tsa uas qhov kev ntxhov siab tau tawm los ntawm cov npoo me me, thiab qhov tshwm sim muaj qhov tsis muaj zog uas koj tsis tuaj yeem pom kom txog thaum kev sim qaug zog.
Ntau tus xav tias txhua yam txhuas lossis magnesium alloy yuav ua haujlwm. Tsis muaj tseeb. Cov alloy muaj pes tsawg leeg yuav tsum muaj kev pom zoo rau kev tsim ntawm ib lub kheej kheej alpha-Al theem nyob rau hauv thaj tsam mushy. Cov feem ntau yog A356 thiab A357 txhuas, tab sis txawm tias tom qab ntawd, cov kab me me tuaj yeem cuam tshuam cov morphology. Peb ib zaug muaj ib pawg ntawm A356 nrog cov ntsiab lus ntawm cov hlau me ntsis. Lub slurry viscosity yog tag nrho cov tsis ncaj ncees lawm, ua rau txaus ntshai sau nyob rau hauv nyias seem. Lub metallurgy yuav tsum tau pom los ntawm qhov pib.
Tom qab ntawd muaj cov cuab yeej cuab tam. Qhov no tsis yog tus qauv tuag casting nrog tweak. Qhov txhaj tshuaj chamber thiab piston system yuav tsum tau ua kom khov, abrasive slurry yam tsis muaj kev qhia turbulence uas rhuav cov qauv. Cov rooj vag thiab cov neeg khiav dej num yog tsim txawv - feem ntau loj thiab smoother kom tswj tau laminar ntws. Kuv nco qab txog qhov project uas peb tau sim hloov lub tshuab qub tuag casting. Qhov tshwm sim yog ntau shear ntawm lub rooj vag, uas rhuav tshem lub globular qauv peb ua hauj lwm nyuaj heev los tsim, tig lub slurry rov qab mus rau hauv ib tug dendritic, tsis muaj zog mess. Qhov ntawd yog ib zaj lus qhia rau daim duab nyob rau hauv tsis txiav cov ces kaum.
Ib Qhov Kev Pom Zoo: Txuas Qws thiab Kev Sib Tw Porosity
Cia peb tham txog daim ntawv thov tiag tiag: kev ua haujlwm siab ntawm tsheb sib txuas rods. Qhov no yog qhov twg semi-solid hlau casting yuav tsum ci - siab zog, tsis muaj porosity, zoo qaug zog lub neej. Peb tau ua haujlwm ntawm tus qauv ua haujlwm rau cov neeg siv khoom motorsport. Lub hom phiaj yog los hloov lub forged steel pas nrig nrog ib tug sib zog, cam khwb cia txhuas ib tug tsis muaj kev cia siab rau.
Thawj koob txhaj tshuaj zoo nkauj heev. Cov khoom tuaj nrog matte, du nto, qhov tseeb qhov tseeb yog nyob rau hauv 0.1 hli. Tab sis thaum peb tau kuaj X-ray, peb pom muaj qhov sib txawv ntawm micro-porosity hauv cheeb tsam shank. Tsis yog roj porosity, tab sis shrinkage. Qhov teeb meem? Txawm nyob hauv lub xeev ib nrab, kev pub mis yog qhov tseem ceeb. Lub solidification yog tswj tau ntau dua, tab sis yog tias qhov kub thiab txias gradient tsis zoo tag nrho, koj tseem tau txais cov pas dej sib cais uas txo qis. Peb yuav tsum tau ntxiv cov cua txias hauv zos hauv qhov tuag thiab tweak lub slurry kub los ntawm ib tug mere 15 ° C los coj lub solidification pem hauv ntej kom zoo. Nws yog ib lub lim tiam ntawm kev hloov kho feeb, txhaj tshuaj cav, thiab CT scans.
Qhov no txuas mus rau hauv lub ntsiab lus dav dav: kev saib xyuas cov txheej txheem. Nyob rau hauv cov pa casting, koj saib xyuas qhov kub thiab txias. Ntawm no, koj xav tau cov ntaub ntawv ntawm slurry viscosity lossis cov khoom seem hauv lub sijhawm tiag tiag, uas yog qhov nyuaj heev los ntsuas ncaj qha rau hauv pem teb ntau lawm. Peb xaus nrog kev siv lub npe: lub zog profile ntawm qhov txhaj tshuaj piston. Ib qho nkhaus tshwj xeeb cuam tshuam nrog zoo slurry zoo. Nws yog kev ua haujlwm tsis zoo, tab sis nws tau ua tiav txoj haujlwm. Qhov no yog hom kev daws teeb meem uas koj tsis tau nyeem hauv cov ntaub ntawv kawm.
Kev txwv ntawm cov khoom siv thiab cov lus nug Alloy
Thaum txhuas thiab magnesium tau txais tag nrho cov xim, ua li cas txog steels los yog tshwj xeeb alloys? Technical hurdles ntau. Kev ua haujlwm kub ntau dua, thiab tswj cov qauv slurry yog npau suav phem. Kuv paub txog R&D cov haujlwm ntawm cov hlau tsis muaj steel, tab sis kev lag luam muaj txiaj ntsig yog txoj hauv kev ntev. Qhov no yog qhov uas cov kws tshaj lij ntawm kev siv lub tshuab ua haujlwm ntev thiab kev ua haujlwm casting ua qhov tseem ceeb.
Coj ib lub tuam txhab zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY). Nrog tshaj 30 xyoo hauv plhaub pwm thiab peev casting, ntxiv rau CNC machining, lawv tau pom cov txheej txheem tuaj thiab mus. Mus saib lawv qhov chaw nyob ntawm tsi.com, koj tau txais kev nkag siab ntawm pragmatic tshwj xeeb. Lawv ua haujlwm nrog cam khwb cia hlau, hlau, stainless, thiab cov khoom siv tshwj xeeb zoo li cobalt thiab npib tsib xee. Rau lawv, dhia mus rau hauv cov khoom ib nrab rau cov khoom siv kub kub no yuav xav tau cov cuab yeej siv rov qab thiab cov neeg siv khoom txaus siab them tus nqi them loj. Nws tsis yog tsis yooj yim sua, tab sis cov ntaub ntawv kev lag luam yuav tsum yog pob zeb-khoom-tej zaum rau qhov tseem ceeb ntawm aerospace tivthaiv qhov hnyav thiab lub zog yog qhov tseem ceeb, thiab tus nqi yog qhov thib ob.
Lawv cov txheej txheem tseem ceeb - kev nqis peev casting, plhaub molding - xa qhov nyuaj tsis txaus ntseeg thiab nto tiav rau cov hlau ua haujlwm siab. Qee zaum, txoj kev sim-thiab-qhov tseeb yog qhov yog. Thawb cov txheej txheem tshiab xws li cov khoom ib nrab rau hauv qhov chaw ntawd tsis yog ib qho kev sib tw xwb; nws yog hais txog kev nkag siab tag nrho cov nqi saw, los ntawm cov khoom siv raw khoom mus rau kev kho cua sov tom qab casting thiab machining. QSY txoj kev sib koom ua ke los ntawm casting mus rau CNC machining yog qhov txiaj ntsig zoo rau kev sib koom ua ke, tab sis nws tau nyob hauv cov txheej txheem uas lawv tau ua tiav ntau xyoo lawm.
Kev sib xyaw taub hau: Los ntawm Casting mus rau Machining
Qhov no yog ib tug loj. Ib qho khoom pov thawj semi-tshuaj tsis yog ib feem ua tiav. Nws feem ntau xav tau machining. Thiab cov yam ntxwv machining tuaj yeem sib txawv. Cov khoom siv yog denser, nrog cov qauv zoo globular, tab sis cov cuab yeej hnav tuaj yeem npaj txhij txog. Peb pom tias thaum lub tshuab machinability tau txhim kho vim qhov porosity qis dua, qhov nyuaj dua, cov qauv zoo dua qee zaum ua rau cov cuab yeej nrawm dua degradation hauv qee qhov kev ua haujlwm, xws li drilling qhov tob. Koj tsis tuaj yeem tsuas yog siv tib qhov txau thiab nrawm raws li tus qauv tuag-cam khwb cia.
Qhov no yog vim li cas muaj machining nyob rau hauv tsev, los yog nyob rau hauv nruj kev sib koom tes, yog tsis-negotiable. Lub voj kev tawm tswv yim yuav tsum luv luv. Cov machinists yuav tsum tau qhia rau pawg neeg ua haujlwm yog tias lawv pom cov cuab yeej hnav tsis zoo lossis cov teeb meem saum npoo tiav, uas yuav rov qab mus rau qhov hloov pauv me ntsis hauv kev npaj slurry hnub ntawd. Nws yog qhov kev sib koom ua ke ntsug - zoo li QSY tau tsim - uas tso cai rau kev ua kom zoo tshaj plaws. Pab pawg casting tsis yog tsuas yog cuam tshuam rau ntawm phab ntsa.
Kuv nco ntsoov ib qho khoom siv gearbox peb tsim. Kev ruaj ntseg zoo li-cam khwb cia yog qhov zoo heev, tab sis thaum lub sijhawm ua haujlwm, peb tau txais kev sib tham me ntsis. Nws hloov tawm qhov tsis sib xws me me hauv cov khoom seem thoob plaws ntawm qhov (tsis tshua muaj ntsuas) tsim qhov sib txawv me me hardness. Qhov kho tau rov qab rau ntawm slurry tuav theem, kom ntseeg tau tias qhov kub thiab txias dua. Yog tias tsis muaj tus kws kho tshuab luam ntawv tam sim ntawd, peb yuav tau sau nws tawm raws li qhov teeb meem kev teeb tsa thiab tsis nco qab qhov laj thawj.
Yog li, Thaum Twg Thiaj Ua Tau Zoo?
Tom qab tag nrho cov no, yog semi-solid hlau casting tsim nyog nws? Tsis yog rau txhua yam. Tus nqi teeb tsa yog siab, lub qhov rais txheej txheem yog nruj, thiab nws xav tau ib theem ntawm cov txheej txheem tswj uas ntau lub foundries tsis tau nruab rau. Nws yog rau cov nqi siab, qhov nyuaj siab qhov twg cov txiaj ntsig - txo qhov hnyav, lub zog, thiab txo cov khoom lag luam - ncaj qha txhais rau hauv kev ua haujlwm lossis kev txuag nqi qis.
Xav txog cov khoom siv kev nyab xeeb ntawm tsheb (pob txha, brackets), cov cuab yeej siv hluav taws xob zoo, lossis qee yam khoom siv dav hlau. Rau cov ntim siab, cov khoom lag luam, cov txheej txheem high-pressure tuag casting tseem yog huab tais. Rau cov duab ultra-complex nyob rau hauv superalloys, peev casting tej zaum yuav unbeatable. Semi-khoom zaum hauv ib lub niche nruab nrab ntawm lawv.
Lub neej yav tom ntej? Nws nyob rau hauv zoo dua, pheej yig dua lub sij hawm ntawm slurry xyuas thiab ntau robust alloy formulations. Tej zaum automation thiab AI tuaj yeem pab txhim kho lub qhov rais txheej txheem. Tab sis rau tam sim no, nws tseem yog tus kws tshaj lij txheej txheem. Nws yog cov cuab yeej muaj zog hauv lub thawv ntawv, tab sis koj yuav tsum paub meej tias thaum twg thiaj li ncav cuag nws, thiab koj xav tau pab pawg thiab kev ua siab ntev hu rau nws. Nws tsis yog hais txog kev hloov lwm txoj hauv kev; nws yog hais txog muaj lwm txoj kev xaiv rau thaum lub specs tau tawv. Thiab qee zaum, qhov kev txav siab tshaj plaws yog lees paub thaum tsis siv nws tag nrho, thiab ua raws li txoj hauv kev pov thawj uas xa rau cov neeg siv khoom, hnub hauv thiab hnub tawm.
