Thaum cov kws ua haujlwm qhia txog cov khoom siv Stellite rau hydraulic li qub, lub twj tso kua mis, lossis lub taub hau siab, lawv tsis yog yuav cov hlau xwb - lawv tab tom yuav qhov kev ruaj ntseg nyob rau hauv 300 MPa siab, tsis kam mus rau galling ntawm 650 ° C, thiab microstructural sib xws ntawm 500-ib feem. Tias yog vim li cas muab los ntawm qhov tseeb Stellite Hoobkas Qhov teeb meem - tsis yog ib qho chaw tsim khoom siv nrog ib txoj kab cobalt-alloy, tab sis ib lub chaw tsim khoom tsim rau AMS 5387, T800, thiab lwm yam cobalt-nickel superalloys los ntawm raw billet mus rau qhov tiav.
Peb tau pom ntau txoj haujlwm qeeb los ntawm kev kho cua sov tsis sib haum - qhov twg tus neeg muag khoom tau txiav txim siab Stellite 6 ua ntej machining, tom qab ntawd hla cov tshuaj annealing tom qab sib tsoo zaum kawg. Qhov tshwm sim? A 12% poob rau hauv Rockwell C hardness thiab ntxov ntxov spalling hauv reciprocating lub tes tsho. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., txhua yam khoom siv Stellite pib nrog ntawv pov thawj AMS 5387 lossis T800 ingots, txheeb xyuas los ntawm spectrographic tsom xam ua ntej casting lossis forging. Tsis muaj kev zam. Tsis muaj "batch waivers." Peb taug qab txhua tus lej yaj, lub tshuab ua kom sov, thiab tus nqi cua txias - tsis yog vim nws yog cov ntaub ntawv, tab sis vim tias 0.3% qhov sib txawv ntawm cov ntsiab lus carbon hloov pauv lub neej los ntawm 40% hauv cov ntawv thov slurry.
Vertical kev koom ua ke tsis yog kev lag luam jargon ntawm no - nws yog qhov peb tswj hwm yam uas lwm tus ua tsis tau. Feem ntau ntawm cov khoom siv Stellite outsource machining lossis kev kho cua sov. Peb ua ob qho tib si hauv tsev, ntawm tib lub tsev ISO-certified. Peb 5-axis CNC hlwb txiav hardened Stellite 6 ncaj qha tom qab HIP (kub isostatic nias), tshem tawm tom qab tshav kub-kho distortion uas ruins GD&T callouts zoo li txoj hauj lwm kam rau ua ± 0.015 hli ntawm nozzle orifices. Lub caij no, peb cov peev txheej casting kab khiav ceramic plhaub pwm preheated rau 1,100 ° C - tseem ceeb rau kev tiv thaiv micro-shrinkage nyob rau hauv nyias-phab ntsa cobalt alloy plugs siv nyob rau hauv offshore BOP pawg. Ib tus neeg siv khoom tau hloov pauv los ntawm tus neeg muag khoom nyob sab Europe tom qab lawv lub rooj zaum Stellite 21 valve tawg thaum caij tsheb kauj vab; peb li dhau 12,000 cycles ntawm -40 ° C rau + 200 ° C yam tsis muaj microfracture. Qhov txawv? Peb cam khwb cia, tshuab, kev ntxhov siab-relieve, thiab ua kom tiav tag nrho nyob rau hauv ib ntus-tsis muaj inter-chaw handoffs, tsis muaj thermal keeb kwm.
Kev ua haujlwm tiag tiag hauv ntiaj teb hinges ntawm peb qhov tsis sib tham: cov khoom siv traceability, geometric fidelity, thiab functional validation. Peb teev txhua CMM scan-X, Y, Z, thiab cov ntaub ntawv vector nto-rau txhua lub tsev nyob hauv siab. Yog tias tus neeg siv khoom qhia txog Ra 0.4 µm ntawm lub ntsej muag sib khi, peb ntsuas nws nrog lub stylus profileometer * thiab * txheeb xyuas cov txheej txheem adhesion ntawm ASTM B571 daim kab xev ntsuas - tsis yog "tshuaj xyuas ib daim duab." Rau AMS 5387 twj tso kua mis, peb khiav ultrasonic kuaj (UT) rau ASTM E114 ntawm 100% ntawm ntau, ntes subsurface porosity uas X-ray nco nyob rau hauv complex geometries xws li piston twj tso kua mis lub tog raj kheej vaj tse. Thiab thaum lub tuam txhab Esxias yav qab teb tau thov kom cobalt alloy nozzles ntsuas rau H₂S kev pabcuam, peb tsis tau ntsib NACE MR0175-peb ntxiv cov ntawv pov thawj thib ob thiab cov tshuaj sulfur. Vim tias "ua raws" tsis txaus thaum hydrogen embrittlement txaus ntshai raug kaw.
Xaiv lub Hoobkas Stellite txhais tau tias xaiv leej twg yog tus tswv ntawm qhov pheej hmoo. Qee cov neeg muag khoom hais cov sij hawm ceev ceev los ntawm kev hla cov tshuaj annealing. Lwm tus siv cov cuab yeej siv dav dav uas ua rau muaj kev sib cav sib ceg ntawm Stellite 12 qhov chaw - ua rau kev puas tsuaj rau kev ncaj ncees. QINGDAO QIANGSENYUAN tsis zoo rau kev ceev ib leeg. Peb ua kom zoo rau kev ua tiav thawj zaug: GD&T tshuaj xyuas ua ntej quoting, manufacturability tawm tswv yim nyob rau hauv 48 teev, thiab qauv validation nrog load-cycle test yog tias xav tau. Peb cov neeg siv khoom hauv North America cov kev pabcuam roj av cia siab rau peb rau winch center shaft rollers uas khiav 18,000 teev nyob rau hauv cov dej ntsev-laden marine ib puag ncig-tsis muaj kev rov ua haujlwm, tsis muaj qhov ua tsis tiav. Qhov kev ntseeg tau los ntawm kev ua cov cobalt-based alloys - tsis yog qee zaus, tab sis txhua hnub. Los ntawm kev tsim kev txhawb nqa mus rau qhov loj me, los ntawm T800 alloy plugs rau kev cai Stellite 6 nozzles, peb tsim qhov ua haujlwm qhov twg tsis ua haujlwm tsis yog qhov kev xaiv. Thaum koj qhov kev xav tau ntawm Stellite tom ntej no nyob rau ntawm lub rooj, nug: koj lub Hoobkas puas paub qhov txawv ntawm hardness thiab toughness? Los yog lawv tsuas mills yam koj xa?
