Cobalt alloys tsis khoov rau kev thov - lawv txhais nws. Thaum hydraulic twj tso kua mis khiav ntawm 400 bar, thaum downhole li qub ntsib 250 ° C thiab H₂S, los yog thaum winch shafts nqus rov qab poob siab loads nyob rau hauv Arctic-qib engineering tsheb, txheem cov ntaub ntawv qaug zog. Kev ua tsis tiav tsis yog maj mam; lawv yog tam sim no, kim, thiab lub hom phiaj tseem ceeb. Peb tau pom peb AMS 5387 cobalt alloy twj tso kua mis hauv tsev tawg hauv 800 teev ua haujlwm - tsis yog los ntawm cov qauv tsim, tab sis los ntawm kev kho cua sov tsis sib haum hauv cov khoom siv casting. Yog vim li cas "6 cobalt alloy ib feem" tsis yog ib lo lus tshawb nrhiav xwb. Nws yog ib qho kev qhia luv luv engineers siv thaum qhov kev ruaj ntseg, microstructural uniformity, thiab hnav tsis kam tsis tuaj yeem cuam tshuam.
Vim Li Cas Rau—Tsis Yog Ib Tug, Tsis Muaj Kaum—Cobalt Alloy Parts Xa Kev Ntseeg Tiag Tiag
Peb pab neeg tau tshuab, sim, thiab teb-validated tshaj 17,000 cobalt-nickel Cheebtsam txij thaum 2018-feem ntau AMS 5387 thiab T800 qib-rau cov neeg siv nyob rau hauv oilfield kev pab cuam, marine hydraulics, thiab high-pressure test rigs. Peb tsis tuaj txog ntawm rau lub hauv paus kev teeb tsa los ntawm kev sib tsoo. Txhua qhov kev daws teeb meem tsis sib xws uas peb tau pom nyob thoob plaws ntau txhiab daim ntawv qhia txog kev pabcuam, kev tshuaj xyuas hauv paus, thiab kev tshawb nrhiav qhov ntev. Cov no tsis yog cov kev daws teeb meem theoretical. Lawv tau ua kom tawv tawv los ntawm kev caij tsheb kauj vab, kev sim ntsuas cua sov, thiab qhov tshwm sim tiag tiag hauv ntiaj teb nyob rau hauv qhov chaw qaub roj.
- Cobalt alloy nozzles - Tsim los rau kev txhaj tshuaj abrasive slurry nyob rau hauv fracturing manifolds. Standard stainless versions eroded 3.2 × sai dua nyob rau hauv kev ntsuam xyuas abrasion (ASTM G65). Peb T800 nozzles khaws cia ± 0.015 hli orifice kam rau ua tom qab 12,000 cycles ntawm 15 m / s ntws tshaj tawm.
- Cobalt alloy plugs - Siv los ua qhov muag tsis pom flange ntxig rau hauv subsea tswj pods. Hloov Inconel 718 thaum cov neeg siv khoom tau tshaj tawm lub siab thaum lub zog nce ntawm -1 ° C dej hiav txwv temps. Cobalt qhov qis coefficient ntawm kev sib txhuam txo qhov ntxig torque los ntawm 41% yam tsis muaj kev sib khi ruaj khov.
- AMS 5387 cobalt alloy 6 twj tso kua mis - Ib qho kev daws teeb meem: lub tog raj kheej thaiv, valve phaj, khau khiab, swashplate bushing, chaw nres nkoj phaj, thiab lub nplhaib retainer - tag nrho los ntawm ib daim ntawv pov thawj kub. Tshem tawm qhov sib txawv thermal expansion ntawm mating nto. Cov ntaub ntawv teb qhia tau hais tias 2.8 × ntev lub sij hawm nruab nrab ntawm kev kho dua tshiab piv rau cov khoom sib xyaw.
- Piston twj tso kua mis lub tog raj kheej Housing - Tsis yog tuab-walled castings xwb. Cov no suav nrog precision-machined coolant channels thiab kev ntxhov siab-relieved mounting flanges. Peb tuav GD&T tolerances nruj dua ISO 2768-mK ntawm bore concentricity (≤0.008 hli tshaj 320 hli ntev) vim misalignment ncaj qha tsav piston khau hnav.
- Siab li qub nrog cov rooj zaum cobalt sib xyaw - Seat hardness ≥45 HRC, nto roughness Ra ≤0.4 µm, thiab xoom porosity txheeb xyuas los ntawm micro-CT scanning. Tsis lees paub 98.3% ntawm cov khoom nyoos tuaj uas tsis kuaj xyuas ultrasonic - tsis muaj qhov thib ob thaum sealing hydrogen ntawm 700 bar.
- Onboard winch center ncej chais - Carburized T800 nrog cov ntaub ntawv qhov tob 1.2-1.5 mm, core toughness> 85 J ntawm -40 ° C. Muaj sia nyob 15,000+ load reversals nyob rau hauv ntsev-txhaj tshuaj ntsuam xyuas qhov twg 42CrMo4 ua tsis tau tejyam ntawm lub voj voog 3,200.
Cov khoom sib xws tsis yog sib tham tau - Ntawm no yog li cas peb lav nws
Qee cov neeg muag khoom kho cobalt alloy li "tsuas yog lwm cov hlau txawv." Peb kho nws li metallurgical system. AMS 5387 tsis yog txhais los ntawm chemistry ib leeg - nws xav tau kev tswj nruj ntawm kev faib cov nplej loj, carbide morphology, thiab kev ntxhov siab nyob hauv lub xeev tom qab ua haujlwm. Peb tsuas yog los ntawm cov mills nrog tag nrho cov ladle traceability thiab xav tau cov ntaub ntawv soj ntsuam zeb rau txhua qhov khoom xa tuaj. Txhua lub tshav kub dhau los ua pov thawj spectrographic, tensile test per ASTM E8, thiab metallographic tshuaj xyuas ua ntej casting pib. Yog hais tias carbide pawg ntau tshaj 5% cheeb tsam feem hauv cov as-cam microstructure, peb khawb tag nrho ntau-txawm tias chemistry dhau. Vim tias hauv kev pabcuam tawg pib muaj, tsis yog nyob rau hauv lub rooj sib txoos zaum kawg.
Machining tsis yog tsuas yog txiav-nws yog tswj kom sov thiab vibration
Cobalt alloys tshem tawm ntawm 1/5 tus nqi ntawm 316 stainless hlau. Tab sis qhov kev sib tw tiag tiag tsis yog kev nrawm - nws yog kev tswj hwm kub. Ntawm 300 ° C, cobalt lub zog tawm los tsuas yog 12%. Qhov ntawd txhais tau hais tias txiav cov cuab yeej nyob twj ywm loaded ntev dua, ua kom muaj cua sov ntau dua, uas ua rau cov khoom ua haujlwm hauv zos thiab ua kom cov cuab yeej hnav. Peb siv cryogenic nitrogen txias-tsis yog pos huab-thaum lub sijhawm ua tiav ntawm lub rooj zaum valve. Cov cuab yeej lub neej txhim kho 3.7 ×. Surface kev ncaj ncees txhim kho: tsis muaj txheej txheej dawb, tsis muaj microcracks subsurface kuaj pom ntawm FIB-SEM. Txhua qhov chaw tseem ceeb tau txais CMM qhov kev lees paub * ua ntej * thiab * tom qab * kev kho cua sov, vim tias kev sib txawv tsis tuaj yeem kwv yees - nws ntsuas tau. Thiab peb sau nws.
Koj Tom ntej 6 Cobalt Alloy Parts Pib Nrog Kev Ntsuam Xyuas Kos Duab - Tsis yog nqe lus
Peb tsis muab RFQs rau cov khoom siv cobalt. Peb pib nrog GD&T txhais. Peb chij tej zaum muaj kev ntxhov siab risers nyob rau hauv fillet hloov. Peb qhia me me geometry tweaks - zoo li hloov qhov chaw chamfer los ntawm 0.3 hli - uas txo lub sijhawm ua haujlwm los ntawm 22% yam tsis muaj kev cuam tshuam rau kev ua haujlwm. Peb validate cov ntaub ntawv txaus nyob rau hauv peev castings siv solidification simulation, tsis guesswork. Qhov no tsis yog overhead. Nws yog kev tiv thaiv kev pheej hmoo. Cov neeg siv khoom uas hla cov kauj ruam no nruab nrab 3.4 engineering hloov xaj ib qhov project. Cov neeg uas koom nrog lub nkoj thaum ntxov thawj ntu hauv 14 hnub, tsis yog 38.
Yog tias koj tab tom qhia txog 6 cobalt alloy ib feem - lossis ntsuas ib qho - koj tab tom daws rau kev ua neej nyob ntev hauv qhov hnyav. Tsis yooj yim. Tsis raug nqi ib leeg. Tsis yog coj lub sijhawm nyob ib leeg. Koj xav tau qhov kev ncaj ncees ntawm qhov kub thiab txias, kev tiv thaiv corrosion hauv kev tawm tsam hnyav, thiab cov qauv kev kwv yees tom qab ntau txhiab lub voj voog. Qhov ntawd yog qhov kev paub ua tau raws li kev ua tiav. Yog vim li cas engineers qhia cobalt - thiab yog vim li cas lawv ntseeg tus txheej txheem tom qab nws.
