Cia peb paub meej: precision casting machining tsis yog ib kauj ruam thib ob xwb; nws yog qhov uas cov lus cog tseg ntawm cov txheej txheem casting yog ua tiav lossis tawg. Muaj ntau cov ntawv specs kho nws raws li kev xav tom qab, ib lub thawv rau zuam. Qhov tseeb yog, qhov zoo nkauj peev casting tawm ntawm lub plhaub yog feem ntau tsuas yog qhov siab-precision dawb paug. Qhov tseeb geometry, qhov tseem ceeb tolerances nyob rau hauv ob peb microns, nto tiav uas ua tau mates nrog rau lwm yam - uas yog tag nrho cov yug nyob rau hauv lub machining pem teb. Kuv tau pom ntau qhov project stumble los ntawm kev kho casting thiab machining raws li cais silos. Cov txiv neej ntawm lub cub tawg thiab cov txiv neej ntawm CNCs yuav tsum tau sib tham los ntawm ib hnub.
Lub Inevitable Handoff: Los ntawm Cast Shape rau Machined Part
Koj tau txais cov khoom xa tuaj, tej zaum lub twj tso kua mis hauv 316 stainless los ntawm kev nqis peev txheej txheem. Nws zoo tag nrho. Tab sis lub sijhawm koj muab tso rau hauv CMM, zaj dab neeg hloov. Lub datum nto tsis tiaj tus los yog sib npaug txaus los ua koj qhov kev siv machining. Cov bores yog undersized thiab tsis concentric. Qhov no yog qhov qub. Qhov no yog vim li cas machining muaj. Cov txuj ci tiag tiag hauv precision casting machining pib nrog kev teeb tsa thawj zaug. Koj tsis ua hauj lwm los ntawm ib tug billet; koj nyob nraum ua hauj lwm los ntawm ib tug nyob ze-net-puab uas muaj nws tus kheej kev nyuaj siab nyob rau hauv thiab hloov maj mam distortions los ntawm cov txheej txheem txias. Koj lub tswv yim fixturing yuav tsum lees paub qhov ntawd. Clamp nws tsis ncaj ncees lawm, thiab koj mam li caij nplooj ntoos hlav, tom qab ntawd saib qhov kam rau siab drift tom qab koj tshem tawm.
Kuv nco qab lub cev valve rau daim ntawv thov subsea, ib daim ntawv nickel-based alloy. Lub casting los ntawm lub foundry yog suab, tsis muaj shrinkage porosity, dhau X-ray. Tab sis peb thawj zaug machining sim ntawm lub ntsiab sealing lub ntsej muag ua rau ib tug txaus ntshai chatter tiav. Peb taug qab nws rov qab mus rau qhov tsis sib xws ntawm phab ntsa tuab tom qab lub ntsej muag, ib qho seem ntawm ceramic core positioning hauv pwm. Lub casting yog luam tawm, tab sis cov luam ntawv tsis suav rau hauv lub zos vibration thaum lub sij hawm machining. Peb yuav tsum rov tsim kho cov cuab yeej txoj kev, siv qhov sib zog ua tiav ntau dua li qhov peb xav tau rau qhov tsis muaj forged. Qhov ntawd yog hom kev paub tsis meej uas koj tsuas yog tau txais los ntawm kev ua qhov no, los ntawm kev pom yuav ua li cas lub casting qhov zais keeb kwm cuam tshuam nrog tus txiav.
Qhov no yog qhov uas lub khw qhov kev paub tseem ceeb. Ib lub tuam txhab xws li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nrog lawv peb lub xyoo caum hauv ob qho tib si casting thiab machining, tau txais qhov kev sib tham no. Koj tuaj yeem pom nws ntawm lawv qhov chaw ntawm https://www.tsingtaocnc.com. Lawv tsis yog ib lub chaw tsim khoom lag luam uas ua haujlwm rau kev ua haujlwm, lossis lub khw muag khoom uas yuav castings. Tuav tag nrho cov saw hlau nyob rau hauv ib lub ru tsev txhais tau tias pab pawg machining tuaj yeem taug kev rov qab mus rau pab pawg casting thiab hais tias, Pom cov phab ntsa nyias no? Peb puas tuaj yeem ntxiv cov cua ntsawj ntshab me me lossis ib qho kev txhawb nqa hauv cov pwm los tua cov kev sib haum xeeb thaum lub sijhawm ua haujlwm tho txawv? Cov lus teb lub voj voog yog priceless.
Khoom siv yog tus thawj coj: Machining Dab tsi cov txheej txheem Casting muab rau koj
Ua hauj lwm nrog cov ntaub ntawv cam khwb cia, tshwj xeeb tshaj yog cov alloys tshwj xeeb QSY cov npe xws li cobalt thiab npib tsib xee-raws li, yog ib tug tsiaj nyaum sib txawv dua li machining bar Tshuag ntawm tib qib nominal. Lub microstructure yog txawv. Cov txheej txheem kev nqis peev casting tuaj yeem tsim cov khoom zoo, zoo ib yam, uas yog qhov zoo rau cov khoom, tab sis nws kuj tuaj yeem ua rau cov khoom siv ntau dua los yog gummy nyob ntawm kev kho cua sov. Koj tsis tuaj yeem rub tus qauv pub / daim ntawv qhia nrawm rau Inconel 718 thiab cia siab tias nws yuav ua haujlwm ntawm cov khoom cam khwb cia. Cov koom nrog, kev sib cais me ntsis - lawv nyob ntawd.
Peb kawm qhov no txoj kev nyuaj nrog ib pawg ntawm cobalt-chrome castings rau kev kho mob cog. Cov khoom siv tsis yog qhov nyuaj rau cov cuab yeej. Peb tau kub hnyiab los ntawm qhov kawg mills ntawm ib qho kev ceeb toom kom txog thaum peb koom tes nrog cov metallurgist los ntawm cov foundry sab. Qhov teeb meem yog qhov txias npaum li cas los ntawm cov txheej txheem casting, uas tsim ib qho kev sib txuas ntawm cov carbide nyuaj heev ntawm cov ciam teb. Peb cov cuab yeej carbide txheem tau chipping. Kev daws tsis yog qeeb qeeb xwb; nws tau hloov mus rau qib sib txawv ntawm kev txiav cov cuab yeej substrate tag nrho, ib qho tsim los cuam tshuam kev txiav hauv cov ntaub ntawv abrasive. Lub ntsiab lus yog, lub machining tsis yog dictated los ntawm lub casting lub metallurgical keeb kwm.
Qhov no siv rau cov khoom siv ib yam nkaus. Piv txwv li, ductile hlau. Cov cav tov zoo zoo nkauj zoo nkauj, tab sis yog tias qhov nodularity tawm, koj tau txais gummy, tearing txiav uas ruins nto tiav thiab rhuav tshem lub cuab yeej. Cov txheej txheem machining zoo rau castings suav nrog cov khoom pov thawj cov kauj ruam, feem ntau ceev spectrograph lossis txawm tias ib qho kev sim hardness ntawm tus khiav, ua ntej lub voj voog kim CNC pib. Nws yog qhov chaw kuaj xyuas tsis sib tham.
Datum Yos Hav Zoov: Thawj thiab Tseem Ceeb Hlais
Qhov no tej zaum yuav yog qhov feem ntau tsis sib tham txog ntawm precision casting machining. Tsim koj cov ntaub ntawv tseem ceeb ntawm cov khoom siv raw yog ib qho txuj ci. Koj tsis tuaj yeem xav tias muaj dab tsi. Qhov zoo li ca flange? Tej zaum nws yuav nyo. Ob lub log no txhais tau li cas rau kev sib tw? Lawv tsis zoo tag nrho parallel. Koj yuav tsum nrhiav tau ib feem nyob rau hauv lub tshuab kev tswj system nyob rau hauv ib txoj kev uas txo tus nqi ntawm cov ntaub ntawv uas koj yuav tsum tau tshem tawm los tsim koj qhov tseeb, machined datums.
Peb feem ntau siv cov txheej txheem soj ntsuam ntawm CNC los qhia qhov chaw tseem ceeb ua ntej kev txiav thawj zaug. Nws yog lub sijhawm ntawm lub tshuab, tab sis nws txuag cov khoom seem. Koj cia qhov kev zov me nyuam pom lub dav hlau zoo tshaj plaws los yog qhov chaw nruab nrab ntawm lub bore ntxhib, thiab tom qab ntawd nws hloov cov txheej txheem sib koom ua ke. Qee lub sij hawm, rau qhov chaw ua haujlwm siab tshaj plaws, peb tseem yuav ua lub tshuab ua ntej kev ntxhov siab. Siv lub teeb txiav los tsim ib ntus datum, tom qab ntawd xa cov ntu tawm rau thermal cycling kom so nws, tom qab ntawd coj nws rov qab thiab rov tsim cov datum los ntawm qhov chaw machined. Nws yog qhov mob, tab sis rau qhov chaw tuav qhov siab ntawm 0.02mm, feem ntau yog tib txoj kev.
Kuv twb pom cov kev daws teeb meem yooj yim dua thiab. Rau ib tsev neeg ntawm cov hlau impellers, lub foundry (tus khub zoo li QSY hauv lawv txoj kev sib koom ua ke) pib casting me me, tsa cov ntaub qhwv rau ntawm qhov chaw tsis tseem ceeb. Cov ntaub qhwv no tau tsim los ua kom zoo sib luag hauv cov pwm. Peb qhov kev ua haujlwm thawj zaug yog ua rau lub ntsej muag zeb no peb lub ncoo los tsim lub pob zeb-khoom, kinematic mounting fixture rau tag nrho cov haujlwm tom ntej. Nws yog kev sib koom tes tsim kev hloov pauv uas txuag cov sij hawm teeb tsa thiab tshawb xyuas lub sijhawm. Nov yog kev sib koom ua ke uas koj xav tau.
Thaum Tej Yam Tsis Zoo: Porosity, Ua Haujlwm, thiab Txuag Ops
Tsis yog txhua qhov casting yog zoo meej. Machining pem teb yog lub rooj vag zoo kawg. Koj yuav tau txiav thiab dheev pom ib lub qhov me me ntawm porosity tshwm. Lo lus nug yog ib txwm: nws puas tau? Raws li ASTM tus qauv, tej zaum. Rau qhov ua haujlwm ntawm qhov? Qhov ntawd yog kev txiav txim siab engineering hu. Qee zaum koj tuaj yeem muab nws tawm. Lwm lub sij hawm, nws yog nyob rau hauv ib qho tseem ceeb sealing cheeb tsam, thiab ib feem yog seem. Muaj lub tshuab ua haujlwm hauv tsev txhais tau tias qhov kev txiav txim siab no tuaj yeem ua tau nyob rau hauv feeb, nrog tus kws tshaj lij casting nyob rau ntawd los tshuaj xyuas nws, tsis yog nyob rau hauv lub lis piam ntawm email thoob teb chaws.
Ib qho teeb meem insidious tshaj yog qhov tseem ceeb hloov. Cov tub ntxhais sab hauv ceramic txav me ntsis thaum lub sij hawm nchuav, ua rau cov phab ntsa nyias nyias ntawm ib sab dua li tsim. Koj pom qhov no thaum koj machining ib tug bore thiab koj tsoo los ntawm kev npaj txhij txog. Tsis muaj kev cawmdim rau qhov ntawd. Qhov kev txhim kho nkaus xwb yog kev tswj cov txheej txheem zoo dua hauv qhov chaw tsim khoom. Qhov no yog ib qho ntxiv uas ib qho kev ua haujlwm sib koom ua ke qhia nws tus nqi. Pab pawg machining muab kev tawm tswv yim tam sim, lub cev - Peb muaj lub tshuab los ntawm batch XYZ ntawm qis flange - thiab pab pawg casting tuaj yeem rov qab mus thiab xyuas lawv cov txheej txheem tseem ceeb rau cov pwm ntawd. Nws kaw lub voj nrawm.
Peb ib zaug tau khiav ntawm cov tsev loj loj stainless hlau qhov twg txhua qhov pom pom me me porosity nyob rau tib qhov chaw tom qab ua tiav. Nws yog cosmetic, tab sis tus neeg siv yuav tsis txais nws. Tsis txhob muab pov tseg, peb tau ua haujlwm nrog tus kws tshaj lij vuam uas tuaj yeem ua qhov kho micro-TIG, tom qab ntawd peb rov ua haujlwm hauv cheeb tsam. Nws yog kim rework, tab sis nws txuag tau qhov chaw. Zaj lus qhia yog los kho cov riser tsim ntawm lub casting rau yav tom ntej txiav txim. Cov txheej txheem machining tau kuaj pom qhov tsis zoo ntawm qhov casting, thiab cov kev daws teeb meem tau siv los ntawm cov dej ntws.
Txoj kab tiav: Ntau tshaj li Ra
Nto tiav ntawm lub tshuab casting tsis yog hais txog tus lej Ra. Nws yog hais txog kev ncaj ncees ntawm qhov chaw. Rau cov khoom uas yuav ua rau qaug zog, xws li turbine hniav los yog cov khoom siv tsaws iav, cov txheej txheem machining yuav tsum tsis txhob ua rau cov microcracks lossis tensile stresses. Qhov no feem ntau txhais tau hais tias tswj tau, maj mam ua tiav, qee zaum ua raws li cov txheej txheem xws li txhaj tshuaj peening lossis honing. Cov tawv nqaij zoo li-cam khwb cia feem ntau raug tshem tawm tag nrho hauv qhov chaw tseem ceeb vim tias nws tuaj yeem muaj oxidation me ntsis lossis suav nrog.
Ces muaj qhov seem stability. Qhov loj, complex casting machined ntawm ib sab tuaj yeem warp thaum koj tso cov kev ntxhov siab sab hauv los ntawm kev tshem cov khoom. Qee lub sij hawm koj yuav tsum tau tshuab hauv cov theem, flipping ib feem thiab tshem tawm cov khoom symmetrically kom sib npaug qhov kev ntxhov siab tso tawm. Nws yog kev seev cev. Koj tsis yog txiav rau ib qho duab xwb; koj nyob nraum tswj lub xeev kev nyuaj siab ntawm ib feem thoob plaws hauv tus txheej txheem. Kuv nco qab lub rooj plaub loj loj uas peb yuav tsum tau siv lub tshuab ntxhib txhua yam, xa mus rau kev vibration kev ntxhov siab, ces rov qab los rau kev ua tiav. Kev hla cov kauj ruam ntawd yuav ua rau cov khoom tawm ntawm kev kam rau siab hauv thaj teb.
Thaum kawg, precision casting machining yog tus choj ntawm lub peev xwm thiab kev ua haujlwm. Nws xav tau kev hwm rau cov txheej txheem casting uas tuaj ua ntej nws. Nws tsis yog lub neej ntawd, automated ua haujlwm. Nws yuav tsum tau txiav txim siab, kev paub, thiab feem ntau, ib txoj kab ncaj nraim rov qab mus rau hauv pem teb foundry. Saib ntawm lub tuam txhab lub peev xwm, koj xav pom tias lawv nkag siab txog qhov txuas ntxiv no, los ntawm cov hlau molten mus rau qhov kawg deburred ntug. Qhov ntawd yog dab tsi hloov qhov ze-net-puab rau hauv ib qho kev vam meej.
