Koj hnov ntau txog kev ua haujlwm ntev hauv lub ntiajteb txawj nqus cam khwb cia hlau, tab sis feem ntau ntawm kev sib tham tsis nco txog qhov taw tes. Nws tsis yog hais txog qib hlau lossis phab ntsa tuab. Qhov sib txawv tiag tiag, los ntawm qhov uas kuv sawv tom qab peb lub xyoos dhau los hauv qhov chaw tsim khoom, yog kev hloov pauv los ntawm kev kho cov kav ntev raws li qhov tshwj xeeb ruaj khov rau kev tswj hwm nws raws li tus txheej txheem sib txawv, cuam tshuam los ntawm kev hloov maj mam hauv cov txheej txheem thiab kev txiav txim siab tom qab casting. Txhua leej txhua tus xav tau ib feem uas nyob mus ib txhis, tab sis txoj kev muaj tau txais ntau nuanced.
Kev ntseeg yuam kev ntawm cov khoom raws li huab tais
Thaum cov neeg siv nug txog kev ua haujlwm ntev, thawj yam uas lawv dhia mus rau yog qib khoom siv. Muab kuv hoob 35 lossis zoo dua. Tseeb, lub zog tensile tseem ceeb. Tab sis kuv tau pom ntau txoj haujlwm uas lawv spec cov hlau qib siab, tom qab ntawd cuam tshuam txhua yam hauv cov txheej txheem kom txuag tau ob peb xees ib chav. Lub melt chemistry tau tweaked rau lub sij hawm ncuav sai, lub inoculation yog rushed - tam sim ntawd, tus hwm hlau yog tag nrho ntawm undercooled graphite los yog ntau carbides. Cov gravity cam khwb cia hlau qhov chaw tawm los kuaj rau spec ntawm daim ntawv, tab sis lub microstructure yog nkig. Lawv ua tsis tiav nyob rau hauv daim teb raws li cyclic loading, thiab txhua leej txhua tus liam cov khoom. Nws tsis yog cov khoom siv; nws yog cov txheej txheem nyob ib ncig ntawm cov khoom.
Peb muaj rooj plaub ob peb xyoos rov qab rau lub cev hydraulic valve. Cov spec yog nruj, yuav tsum tau zoo siab ncaj ncees. Cov kev khiav haujlwm pib siv tus qauv tsim-qib npua hlau nrog ceev faj superheating thiab muaj tswv yim inoculant peb tsim hauv tsev. Cov khoom dhau tag nrho cov kev xeem. Tus neeg sib tw undercut peb tus nqi tseem ceeb. Tom qab ntawd peb pom tias lawv tau siv cov hlau qib siab dua tab sis txiav cov ces kaum ntawm pwm tswj qhov kub thiab txias. Lawv qhov chaw dhau qhov kev sim hydrostatic thawj zaug tab sis pib pom cov kab nrib pleb tom qab txog 500 lub voj voog. Peb cov tseem khiav ntawm 5000+. Tus neeg siv khoom rov qab los. Zaj lus qhia? Lub pedigree ntawm cov hlau tsis tseem ceeb tshaj li cas koj kho nws thaum lub sij hawm gravity casting txheej txheem.
Qhov no ua rau thawj qhov sib txawv tiag tiag: kev tsom mus rau cov txheej txheem sib xws raws li tus thawj tswj hwm kev ruaj ntseg. Nws yog hais txog kev tswj txhua qhov sib txawv-pwm lub tsho tuab, nchuav kub gradient, txias npaum li cas hauv pwm-nrog kev ntseeg siab. Cov ntaub ntawv loggers ntawm peb lub cub tawg thiab cov kab ntws tsis yog rau kev qhia xwb; lawv yog li cas peb taug qab qhov teeb meem durability rov qab mus rau 10-degree Celsius poob hauv qhov kub thiab txias thaum kawg ntawm lub ncuav.
Qhov twg Durability yeej yeej los yog Poob: Lub Unseen Geometry
Durability tsis yog tsim los ntawm CAD qauv; nws muab pov rau hauv qhov chaw. Qhov no yog kev hloov pauv loj hauv kev xav. Cov kws tsim qauv tsim rau kev ua haujlwm, tab sis lawv feem ntau tsim cov duab geometry uas tsim kom muaj kev ntxhov siab thaum lub sij hawm solidification. Nthuav cov ces kaum sab hauv, ntu ntu hloov pauv - cov no yog cov tua neeg ua haujlwm ntev. Cov qauv kuv pom yog kev sib koom ua ke ua ntej ua pwm. Peb tab tom siv sij hawm ntau dua rau simulation software tsis yog kom tsis txhob muaj teeb meem pom tseeb, tab sis ua qauv thermal stresses thaum txias.
Piv txwv li, ib tug bracket rau ib tug hnyav-duty compressor. Cov qauv tsim tau zoo nkauj, hnyav-txuag tav qauv. Tab sis peb qhov kev simulation tau pom tias muaj qhov tshwm sim ntawm qhov kub kub tearing ntawm tav junctions. Peb tau hais kom ntxiv me ntsis fillets, tsis yog rau lub zog siv, tab sis rau lub zog thaum tsim. Pab neeg tsim tawm tsam - nws ntxiv qhov hnyav tsawg. Peb tsim ib pawg raws li-yog, thiab ib qho nrog peb cov kev hloov kho. Raws li-yog batch muaj 30% seem ntawm cov kab nrib pleb nkaus xwb pom nyob rau hauv dye penetrant tshuaj xyuas. Hloov kho batch? Zero. Cov durability ntawm lub suab casting yog inherently siab dua vim hais tias nws muaj sia nyob nws tus kheej yug yam tsis muaj qhov tsis xws luag.
Qhov kev sim ua kom muaj zog no tau dhau los ua cov kauj ruam tsis sib tham rau peb ntawm QSY. Nws yog kev nqis peev uas them nyiaj los ntawm kev zam qhov kev puas tsuaj, zais qhov tsis zoo uas ua rau kev ua tsis tiav. Nws txav durability upstream.
Tom qab Casting Gambit: Kev kho cua sov thiab Machining
Ntawm no yog ib qho kev sib cav. Kev nyuaj siab nyem annealing. Qee lub khw kho nws ua ib lub thawv yuav tsum zuam. Lwm tus hla nws kom txuag lub sijhawm thiab lub zog. Peb lub hom phiaj tau hloov zuj zus. Peb tam sim no saib nws yog ib qho kev xaiv. Rau kev sib txuas, cov duab zoo li lub twj tso kua mis, nws yog qhov tseem ceeb. Qhov kev ntxhov siab nyob ntawm qhov tsis sib xws tuaj yeem ua rau loj heev. Hla kev ntxhov siab yog zoo li winding lub caij nplooj ntoos hlav hauv ib feem; machining yuav tso nws, ua rau distortion, thiab nyob rau hauv-kev pab cuam loads yuav ua hauj lwm rau ib tug pre-stressed tivthaiv.
Tab sis peb kuj tseem muaj cov khoom kho ntau dhau. Ib qho yooj yim, qhib-nce qib ua los ntawm cov hlau grey tau dhau los ua kom muaj kev ntxhov siab tag nrho. Nws tsis tsuas yog so kom txaus siab; nws me ntsis softened cov khoom, txo nws hnav tsis kam nyob rau hauv ib tug tseem ceeb bearing cheeb tsam. Nws yog ib rooj plaub ntawm kev siv daim ntawv qhia tus qauv yam tsis xav. Tam sim no, peb txiav txim siab raws geometry, phab ntsa thickness variation, thiab qhov kawg machining qhov tob. Qee zaum, rau qhov ruaj khov, yooj yim, tswj kev txias hauv pwm yog txaus. Daim ntawv thov xaiv no yog ib qho kev sib tw rau kev ntse dua, tsis yog ntau dua, ua.
Tom qab ntawd muaj machining. Ib qho zoo nkauj cam khwb cia tuaj yeem rhuav tshem los ntawm kev ua haujlwm nruj heev. Peb koom ua ke CNC machining ib feem los tswj cov kauj ruam tseem ceeb kawg no. Noj hnyav, ceev txiav rau ib nrum hlau ib feem tuaj yeem rhuav tshem cov graphite matrix ntawm qhov chaw, tsim kom muaj lub network ntawm micro-fractures uas dhau los ua cov ntsiab lus pib rau qaug zog. Peb cov kws kho tshuab paub siv cov cuab yeej geometries thiab txau / nrawm rau peb cov castings. Nws tsis yog tsuas yog hais txog kev ntaus lub qhov ntev; Nws yog hais txog kev khaws cia kev ncaj ncees uas peb tau ua haujlwm hnyav heev los tsim hauv qhov chaw tsim khoom.
Alloying Subtlety: Tsis yog txhua yam yog Superalloy
Lub buzz yog ib txwm hais txog kab txawv alloys. Tab sis rau ntau daim ntawv thov kev lag luam, qhov ruaj khov tau txais los ntawm alloying grey los yog cov hlau ductile yog ntau tshaj qhov zoo tshaj li brute quab yuam. Ntxiv me me ntawm tooj liab, tin, lossis chromium. Peb tsis tham txog kev tsiv mus Nickel-raws li alloys, tab sis hais txog tweaking lub matrix.
Peb tau ua hauj lwm ntawm ib lub phaj coj mus rau lub mining conveyor system. Ntshiab grey hlau hnav ceev heev. Ductile hlau yog tawv heev thiab kim. Peb tau txiav txim siab ntawm cov hlau grey nrog kev tswj xyuas ntxiv ntawm chromium thiab tooj liab. Cov chromium txhawb nqa ib qho nyuaj, pearlitic matrix rau kev puas tsuaj, thaum tooj liab refined lub graphite thiab txhim kho lub zog yam tsis muaj brittleness loj. Cov durability tiam sis Ntawm no yog mus rau micro-alloying rau cov cuab yeej tshwj xeeb profiles, feem ntau coj los ntawm xyoo ntawm kev sim thiab ua yuam kev hauv peb tus kheej cov ntaub ntawv. Nws tsis tshua zoo nkauj dua li hais tias peb siv superalloys, tab sis nws feem ntau ua haujlwm tau zoo thiab raug nqi rau daim ntawv thov.
Qhov no yog qhov uas tus foundry qhov kev paub yog irreplaceable. Koj tsis tuaj yeem rub cov zaub mov no los ntawm phau ntawv qhia. Lawv nyob ntawm koj lub hauv paus hlau qhov chaw, koj qhov kev ua kom yaj, txawm tias koj qhov kev nyab xeeb hauv cheeb tsam cuam tshuam rau pwm kom qhuav. Cov ntses zais cia feem ntau tsuas yog kaum xyoo ntawm cov ntaub ntawv nkag.
Kev Ua Tsis Taus Ua Tus Xib Fwb Zoo Tshaj Plaws: Ib Daim Ntawv Qhia Txog Tus Kheej
Thaum ntxov ntawm kuv lub sijhawm no ntawm Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), peb muaj qhov tsis ua haujlwm loj uas hloov kho peb txoj hauv kev. Ib pawg ntawm cov hlua hlau gearbox npog rau daim ntawv thov marine. Lawv dhau tag nrho QA cov tshev. Rau lub hlis rau kev pabcuam, peb tau txais kev hu xovtooj ceeb: cov kab nrib pleb tau tshwm nyob ib ncig ntawm lub qhov ntsia hlau. Nws yog kev puas tsuaj.
Lub post-mortem yog lim hiam. Cov khoom tau ntsib nodularity thiab qib. Tus tsim yog suab. Tus neeg ua txhaum? Ib qho kev hloov hauv cov xuab zeb binder system rau cov khoom tshiab, sai dua. Nws tau txhim kho peb cov pwm tsim tau me ntsis, tab sis nws hloov pauv cov cua txias kom txaus nyob rau hauv cov ntu tseem ceeb nyob ib ncig ntawm lub bolt bosses. Nws tsim ib cheeb tsam ntawm me ntsis siab dua carbide cov ntsiab lus, ua rau nws nkig. Qhov kev ntxhov siab tas li los ntawm lub cav vibration pom tias tsis muaj zog. Peb poob tus neeg siv khoom, them nyiaj hloov pauv, thiab yuav luag poob peb lub koob npe nrov.
Qhov kev ua tsis tiav ntawd ua rau peb ua kom muaj kev tswj hwm kev hloov pauv. Txhua qhov kev hloov pauv-cov ntaub ntawv tshiab, cov inoculant tshiab, cov khoom siv ladle liner tshiab-tam sim no mus los ntawm kev sib tw batch thiab nruj seem thiab micro-analysis. Peb tsis tsuas yog kuaj rau tus qauv specs; Peb tab tom nrhiav rau cov hloov maj mam microstructural hloov. Qhov kev mob siab ntawd tau ua ntau dua rau lub ntiaj teb tiag durability ntawm peb gravity cam khwb cia hlau qhov chaw tshaj tej phau ntawv kawm puas tau. Nws yog ib qho kev tshwm sim tshwm sim los ntawm nti: kev ua haujlwm nruj tshaj li kev ua haujlwm me me.
Yog li, qhov kev xav tau mus rau qhov twg? deb ntawm cov lus teb yooj yim. Los ntawm kev tswj cov txheej txheem kev sib xyaw, los ntawm kev simulation mus rau kev xaiv kev kho cua sov kom maj mam machining. Mus rau micro-alloying raws li cov ntaub ntawv keeb kwm tob. Thiab qhov tseem ceeb tshaj, ntawm kev hwm qhov kev ua haujlwm ntev tsis yog ib qho cuab yeej koj sim ua ib feem; nws yog kab lis kev cai uas koj tsim rau hauv cov txheej txheem. Nws yog qhov tho txawv, ua tib zoo saib xyuas, tsis muaj kev sib tham ntawm ib puas qhov sib txawv uas tsis muaj leej twg pom - txog thaum ib feem tseem ua haujlwm flawlessly xyoo tom qab. Qhov ntawd yog qhov sib txawv tiag tiag. Koj tuaj yeem nrhiav qee qhov ntawm peb lub tswv yim siv thoob plaws peb cov txheej txheem ntxaws ntawm peb qhov chaw ntawm tsi.com, tab sis qhov kev paub tiag tiag, raws li ib txwm muaj, yog nyob rau hauv pem teb foundry.
