Thaum engineers qhia a xuab zeb casting manufacturing Hoobkas, lawv tsis yog tsuas yog xaj cov khoom hlau-lawv tab tom twv ntawm qhov kev ruaj ntseg nyob rau hauv 300-bar hydraulic siab, microstructure kev ncaj ncees tom qab tshav kub cycling, thiab xoom kam rau porosity nyob rau hauv lub twj tso kua mis vaj tse uas khiav 24/7 offshore. Qhov ntawd yog qhov tseeb peb pom txhua hnub ntawm peb lub tsev hauv pem teb hauv Qingdao: lub cev cobalt-nickel valve lub cev tsis lees paub - tsis yog rau saum npoo tiav - tab sis vim CMM cov ntaub ntawv tau pom 0.012 hli sib txawv ntawm thaj av tseem ceeb. Qhov ntawd tau rov qab mus rau pwm tsim. Tsis yog txhua lub khw ua li ntawd.
Xuab zeb Casting Uas Muaj Kev Nyuaj Siab Hauv Ntiaj Teb - Tsis yog Lab Specs
Xuab zeb casting tau mislabeled raws li "tsawg-precision" los ntawm cov neeg uas tsis tau tuav AMS 5387 cobalt alloy twj tso kua mis casing tshiab los ntawm shakeout. Peb pov lawv. Thiab yog-peb tuav ± 0.15 hli ntawm 300-mm txoj kab uas hla, nrog rau tag nrho cov duab hluav taws xob soj ntsuam ntawm txhua chav II siab ciam teb. Yuav ua li cas? Los ntawm kev tswj hwm dab tsi lwm tus hla: ntsuab xuab zeb noo ntawm 3.2-3.6%, av nplaum sib piv calibrated ib batch, thiab core box kub stabilized nyob rau hauv ± 2 ° C thaum lub sij hawm tub ntxhais tua. Peb tsis tsuas yog nchuav hlau molten. Peb tswj cov thermal gradients thoob plaws lub pwm kab noj hniav kom shrinkage rub uniformly mus rau risers-tsis mus rau qhov chaw ua hauj lwm.
Qhov no tseem ceeb tshaj plaws rau qhov chaw xws li piston twj tso kua mis lub tog raj kheej vaj tse lossis engineering tsheb winch center ncej chais. Cov no tsis yog cov khoom zoo li qub. Lawv tig nyob rau hauv torsional load thaum bearing axial thrust los ntawm high-pressure kua. Ib qho 0.05 hli suav nrog nyob ze ntawm lub vojvoog fillet yuav ua rau qaug zog tawg qhov chaw pib hauv 1,200 teev ua haujlwm. Peb cov txheej txheem xuab zeb casting suav nrog hauv-pwm thermocouple saib xyuas rau txhua qhov tseem ceeb ntawm lub ncuav, thiab txhua qhov casting raug kuaj ultrasonic ua ntej machining-txawm ntawm qhov tsis-siab. Vim kev ua tsis tiav tsis yog binary. Nws yog cumulative.
Qhov twg Sand Casting ntsib Precision Machining - Tsis muaj kev sib tw, tsis muaj qhov khoob
Qee cov factories outsource machining. Peb tsis ua. Vim li cas? Vim hais tias cov xuab zeb-cam khwb cia hlau flange nrog 1.2 hli machining nyiaj pub tsis coj zoo ib yam li ib qho nrog 0.8 hli - tshwj xeeb tshaj yog thaum koj threading M42 × 3.5 ntawm stainless hlau baseplate rau subsea valve actuation. Peb lub hlwb CNC zaum 15 meters los ntawm qhov chaw nres tsheb shakeout. Castings txav ncaj qha mus rau kab rov tav tho txawv zeb nrog cov cuab yeej nyob, tsis yog mus rau lub tsev khaws khoom rau kev npaj rov ua dua.
Peb tshuab yam peb nrum-thiab peb nrum yam peb paub yuav ua li cas tshuab. Qhov kev sib koom ua ke ntsug txhais tau tias tsis muaj qhov xav tsis thoob ntawm GD&T tshuaj xyuas theem. Thaum tus neeg siv khoom xa ib daim duab hu rau txoj hauj lwm kam rau ua ntawm Ø0.05 hli ntawm rau lub qhov ntsia liaj qhov rooj txheeb ze rau cov xuab zeb-cam khwb cia datum nto, peb tsis thov rau machined siv. Peb tsim cov qauv nrog cov nyiaj them poob haujlwm, tswj cov pwm compaction quab yuam rau ± 3%, thiab xyuas kom meej raws li-cam khwb cia flatness ua ntej clamping. Tom qab ntawd peb tshuab-siv fixture-mounted sojntsuam kom nws pib-compensate rau me me casting variation. Qhov tshwm sim? Thawj-kab lus ua raws li 92% ntawm nruab nrab-ntim xaj. Tsis muaj thib ob sim. Tsis muaj engineering zam.
Cov ntaub ntawv uas koj tuaj yeem ntseeg tau - Tsis yog daim ntawv pov thawj koj tuaj yeem ua ntaub ntawv
Certified raw khoom yog rooj ceg txheem ntseeg. Dab tsi cais cov neeg xa khoom txhim khu kev qha yog traceability * hauv qab * daim ntawv pov thawj. Rau T800 cobalt-based alloy nozzles, peb taug qab txhua tus xov tooj cua sov los ntawm tus neeg muag khoom ladle tsom xam los ntawm peb tus kheej spectrographic pov thawj, ces daim ntawv qhia rau ib tug neeg castings siv laser-etched ntau codes. Yog tias lub nozzle ua tsis tiav qhov kev sim, peb rub nws tag nrho cov keeb kwm thermal - tsis yog nws daim ntawv qhia tensile.
Peb muab cov ntawv AMS 5387 tsuas yog los ntawm cov mills nrog EN 10204 3.2 zeb ntawv pov thawj - thiab hla kev kuaj carbon, chromium, thiab tungsten cov ntsiab lus ntawm OES ua ntej nchuav. Vim li cas? Vim tias 0.03% cov pa roj carbon ntau hauv cobalt alloy txo qhov kub hardness los ntawm 18% siab tshaj 600 ° C. Qhov ntawd yog qhov sib txawv ntawm lub taub hau uas muaj sia nyob 14,000 lub voj voog hauv lub twj tso kua mis tshuaj txhaj tshuaj siab ... lossis ua tsis tiav ntawm 8,200. Peb sim. Peb sau. Peb ua.
Peb cov ntaub ntawv log muaj xws li:
- Tus neeg muab khoom kub tus naj npawb thiab yaj hnub
- Peb cov ntawv pov thawj OES tuaj (nrog cov ntawv luam tawm tag nrho)
- Pwm kab noj hniav assignment thiab ncuav sequence ID
- Tom qab cua sov-kho hardness daim ntawv qhia hla peb ntu
- Thaum kawg CMM scan nrog xim sib txawv overlay vs. CAD
Tsis muaj qhov khoob. Tsis muaj kev xav.
Vim li cas Cov Kws Ua Haujlwm Thoob Ntiaj Teb Xaiv Lub Chaw Tsim Khoom Siv Sand Casting
North American oilfield OEMs xaj los ntawm peb vim peb xa cov qauv hlau castings hauv 18 hnub - tsis yog 6 lub lis piam - nrog rau tag nrho ASME Tshooj VIII Tshooj UHA cov ntaub ntawv. European hydraulic system integrators siv peb cov hlau castings vim peb validate weld prep geometry * ua ntej * pouring, tshem tawm tom qab vuam sib tsoo ntawm siab ciam welds. Cov neeg Esxias sab hnub tuaj yeem tso siab rau peb rau cobalt alloy plugs vim tias peb tuav Ra ≤0.4 µm ntawm lub ntsej muag sealing-tsis muaj qhov thib ob lapping-los ntawm optimizing pwm nto tiav thiab gating tsim.
Kev ntseeg ntawm no tsis yog kev lag luam lus. Nws yog 0.00% seem ntawm 420+ AMS 5387 lub twj tso kua mis xa mus rau lub quarter kawg. Nws yog 100% kev xa khoom raws sijhawm rau 27 lub hlis sib law liag. Nws yog qhov tseeb tias thaum tus neeg siv khoom nug, "Koj puas tuaj yeem tuav txoj haujlwm tseeb ntawm 12 lub xov tooj ntawm cov chaw nres nkoj tom qab casting thiab kho cua sov?" - peb teb nrog daim ntawv qhia txheej txheem, tsis yog kev cia siab.
Yog tias koj daim ntawv thov xav tau ntau dua li "hlau nyob rau hauv cov duab" - yog tias nws xav tau qhov kev xav tau ntawm metallurgy, txheeb xyuas qhov ntsuas, thiab xoom-kev cuam tshuam kev lav phib xaub - yog li txoj cai xuab zeb casting manufacturing Hoobkas tsis yog tus pheej yig tshaj. Nws yog ib qho uas kho koj feem zoo li lub hom phiaj tseem ceeb kho vajtse txij hnub ib. Nov yog qhov peb ua. Txhua ncuav. Txhua ntu. Txhua lub sijhawm.
