Thaum cov engineers qhia cov khoom siv siab siab siab siab rau cov hydraulic li qub, lub twj tso kua mis, lossis cov roj tawm sab nrauv thiab cov tshuab hluav taws xob, lawv tsis yog xav tau precision peev casting lwm tus neeg Hoobkas-lawv xav tau ib qho uas * kwv yees tsis ua haujlwm hom ua ntej casting pib *. Peb tau pom ntau txoj haujlwm qeeb los ntawm qhov ntev ntawm qhov kev sib tw hauv cobalt alloy nozzles lossis microstructural inconsistencies hauv AMS 5387 twj tso kua mis. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., txhua qhov chaw pib nrog lub hom phiaj metallurgical - tsis yog qhov ntev ntev.
Yog vim li cas "Precision" pib ntev ua ntej lub pwm yog poured
Muaj tseeb precision peev casting tsis yog hais txog ntaus ± 0.05 hli ntawm CMM daim ntawv qhia. Nws yog hais txog kev tswj hwm qhov sib txawv uas cov neeg muag khoom feem ntau kho raws li lub suab nrov tom qab: thermal gradient thaum lub sij hawm siv quav ciab qauv solidification, ceramic plhaub permeability ntawm 1,150 ° C, thiab residual stress distribution tom qab kev kho cua sov ntawm T800 cobalt-based castings. Peb niaj hnub ntsib cov neeg siv khoom uas tau txais "tso ntawv pov thawj" AMS 5387 qhov chaw - tsuas yog nrhiav cov qoob loo ciam teb carbide cais tawm thaum lub caij tsheb kauj vab. Yog vim li cas peb cov txheej txheem embeds cov ntaub ntawv traceability * ua ntej * melting: txhua lub tshav kub muaj tag nrho cov ntaub ntawv spectrographic, tensile curves, thiab intergranular corrosion xeem cav - tsis yog ib daim ntawv pov thawj zeb.
Peb validate qhov no txhua hnub. Lub hli tas los, European OEM tau xa peb cov khoom tsis lees paub ntawm piston twj tso kua mis lub tog raj kheej-ob los ntawm cov chaw sib tw, ib qho los ntawm peb. Txhua tus tau ntsib GD&T ib daim duab. Tab sis tsuas yog peb dhau los ua qhov kev sim siab ua haujlwm ntawm 420 bar rau 12,000 cycles. Vim li cas? Vim peb tswj pwm preheat ramp tus nqi nyob rau hauv ± 3 ° C / min thiab tuav lub plhaub kom qhuav cov av qis dua 35% RH-tsis tshua muaj ntaub ntawv nyob rau lwm qhov tab sis tseem ceeb heev rau txo microporosity nyob rau hauv tuab-section stainless hlau castings.
Vertical Integration Uas ua tau kom ruaj khov
Muaj ntau qhov "kev pabcuam puv ntoob" tsim tawm los ntawm kev ua haujlwm lossis ua tiav. Qhov ntawd tsim qhov sib txawv ntawm qhov sib txawv-tshwj xeeb tshaj yog txaus ntshai thaum tig 320HB stainless vaj tsev rau hauv 45HRC hardened bore nrog ± 0.015 hli cylindricity. Peb lub tsev ISO-raws li lub tsev CNC lathes, tsib-axis milling chaw, thiab lub tshuab nqus tsev kho cua sov rau hauv ib lub ru tsev. Tsis muaj lwm tus neeg muag khoom hloov pauv cov keeb kwm thermal ntawm koj cov cobalt-nickel plug ntawm casting thiab kev sib tsoo zaum kawg.
- CNC machining chaw calibrated txhua hnub tiv thaiv NIST-traceable masters
- Kev tshuaj xyuas hauv cov txheej txheem ntawm 3 theem tseem ceeb: post-rough, post-heat-kho, post-finish
- Kev ntsuas kho qhov muag rau cov contours nyuaj (xws li, tsis yog lub voj voog winch center ncej rollers)
- Kev txheeb xyuas qhov tseeb ntawm qhov chaw ntawm lub teeb dawb-lub teeb interferometry-tsis yog qhov tseem ceeb Ra
Qhov kev sib koom ua ke no tshem tawm "kev ua siab ntev-up" uas tua kev ntseeg siab hauv engineering tsheb onboard winches. Thaum ib tus neeg siv khoom thov rau cov menyuam kev cai nrog asymmetric load-bearing geometry, peb tau khiav kev simulation, ua thawj tus qauv hauv tsev, thiab siv tau cov kabmob lub neej hauv peb cov hydraulic qaug zog-tag nrho hauv 11 hnub ua haujlwm. Tsis muaj courier qeeb. Tsis muaj misaligned datums.
Qhov twg Material Expertise ntsib Real-World Failure Modes
Qee tus neeg muag khoom kho cobalt alloys li "tsuas yog lwm superalloy." Peb kho lawv raws li cov txheej txheem nrog kev kos npe tsis ua haujlwm. Cobalt alloy nozzles tsis ua los ntawm tag nrho kev tawg-tab sis los ntawm kev yaig hauv zos ntawm 12-15 ° cuam tshuam cov ces kaum hauv kev pabcuam slurry. Yog li peb kho cov kev taw qhia solidification kom dlhos dendrite caj npab perpendicular rau ntws paths. AMS 5387 plugs degrade tsis yog los ntawm yield zog poob - tab sis los ntawm sigma theem nag lossis daus ntawm 650-850 ° C thaum vuam kho. Yog li peb ua ntej tsim nyog txhua tus xaim xaim nrog lub sijhawm-kub-hloov pauv (TTT) kab kos.
Qhov no yog vim li cas peb cov hlau castings rau lub hauv paus twj tso kua mis muaj xws li graphite morphology cov ntaub ntawv - thiab yog vim li cas peb stainless hlau castings nkoj nrog ferrite tooj (FN) maps, tsis yog tshuaj ntsuam xyuas. Peb tsis xav tias; peb ntsuas. Thiab peb muab cov kev ntsuas ntawd.
Yam Koj Yuav Tau Txais - Tsis Yog Dab Tsi Yog Dab Tsi
Ib tug txhim khu kev qha precision peev casting lwm tus neeg Hoobkas xa ntau tshaj qhov chaw. Nws muab kev txiav txim kom meej. Thaum koj xa peb daim duab GD&T, koj tau rov qab:
- Dimensional kev soj ntsuam kev pheej hmoo hais txog qhov tseem ceeb tshaj plaws rau shrinkage lossis pwm distortion
- Cov kev xaiv hloov khoom siv nrog kev txheeb xyuas kev ua tau zoo ntawm kev lag luam tawm (piv txwv li, F316L vs. F347H rau cyclic thermal loading)
- Lub sij hawm ua cov pob tshab: tus qauv (22 hnub), nruab nrab-ntim (6-8 lub lis piam), nrog rau qhov tsis zoo ua rau cov ntaub ntawv pov thawj qeeb
- Tag nrho cov batch traceability: yaj cav, casting ntau, tshav kub kho lub voj voog daim ntawv qhia, CMM daim ntawv qhia, nto tiav pov thawj
Tsis xav tsis thoob. Tsis yog "peb yuav kuaj nrog ntau lawm." Tsuas yog kev txiav txim siab engineering hauv paus hauv kev coj cwj pwm - tsis yog phau ntawv.
Saib tom ntej: Precision Ua kom yoog, tsis yog rov ua dua
Cov pem hauv ntej tom ntej tsis yog nruj dua kam rau ua - nws yog kev hloov kho qhov tseeb. Peb tab tom nthuav dav R & D rau hauv hybrid casting-machining txheej txheem qhov twg ze-net-puab peev castings undergo xaiv laser melting rau thaj chaw hnav. Peb kuj tseem tau lees paub rau API 6A PR2 thiab ISO 15156 Annex A rau cov ntawv thov kev pabcuam qaub-vim kev ntseeg tau txhais tau tias ua tau raws li tus qauv * ua ntej * kev tshuaj xyuas tuaj txog.
Yog tias koj daim ntawv thov xav tau lub siab li qub uas kaw ntawm 700 bar, cobalt alloy cov khoom uas muaj sia nyob 10,000 teev nyob rau hauv corrosive brine, los yog winch shafts uas tuav asymmetric shock loads yam tsis muaj microcrack propagation - koj xav tau ib tug khub uas nws txhais tau tias "precision" nrog rau yuav ua li cas ib feem coj * tom qab * nws tawm hauv lub Hoobkas. Nov yog tus qauv peb tsim los. Txhua hnub.
