Thaum engineers qhia a kev pabcuam casting rau siab-siab hydraulic li qub lossis cobalt-alloy twj tso kua mis, lawv tsis yog tsuas yog xaj hlau-lawv tab tom twv ntawm qhov ruaj khov nyob rau hauv 300-bar loads, microstructure kev ncaj ncees tom qab kev kho cua sov, thiab xoom batch-rau-batch drift hauv corrosion kuj. Peb tau pom cov neeg siv khoom ncua kev siv tus qauv los ntawm 11 lub lis piam - tsis yog vim yog qhov tsis zoo ntawm kev tsim, tab sis vim tias lawv tus khub casting tsis tuaj yeem tuav ± 0.05 hli ntawm AMS 5387 nozzle bore. Qhov ntawd tsis yog qhov teeb meem machining. Nws yog ib kev pabcuam casting teeb meem loj.
Vim li cas "Kev Tshawb Fawb Txog Kev Txawj Ntse" yog qhov ua piv txwv tsis raug—Thiab ua li cas tiag
"Kev Tshawb Fawb Txog Kev Txawj Ntse" yog nyob rau hauv kev tsim cov yeeb yaj kiab - tsis yog kev lag luam khoom. Nyob rau hauv precision casting, kev ntseeg tau txhais tau hais tias tus cwj pwm ua kom muaj zog hauv cov xuab zeb pwm rau T800 alloy vaj tse, tsis pom kev pom zoo. Nws txhais tau tias txheeb xyuas txhua tus cobalt-nickel ingot tiv thaiv cov ntawv xeem ntawv ua ntej nchuav-tsis tso siab rau cov ntawv pov thawj ntawm tus nqi ntawm lub ntsej muag. Nws txhais tau hais tias ntes tau 0.12% carbon sib txawv hauv cov khoom xa tuaj ua ntej nws dhau los ua pob txha tawg hauv lub piston twj tso kua mis lub tog raj kheej.
Peb tau tshawb xyuas ntau dua 40 lub chaw tsim khoom thoob plaws Asia thiab sab hnub tuaj Europe txij li xyoo 2019. Qhov sib txawv sib txawv? Vertical kev koom ua ke - tsis yog "casting + machining," tab sis qhia GD&T txhais ntawm tus qauv tsim thiab CNC programmers. Ib tus neeg siv khoom xa cov duab kos zoo ib yam rau peb tus neeg muag khoom: ob lub ntsiab lus sib cais rau casting thiab tiav-machining; qhov thib peb mapped cov ntaub ntawv tseem ceeb los ntawm pwm kab noj hniav mus rau qhov kawg CMM tsab ntawv ceeb toom. Tsuas yog tus neeg muag khoom tau xa thawj tsab xov xwm uas dhau qhov kev sim siab ua haujlwm rau hnub ib.
Qhov ntawd tsis yog kev nrhiav txuj ci. Nws yog kev ua tswv cuab.
Plaub Tsis-Tshaj Tawm hauv Lub Hom Phiaj-Tseeb Casting (Tom qab los ntawm Cov Ntaub Ntawv Tsis Txaus Siab)
Peb pab pawg ua haujlwm taug qab cov hauv paus hauv paus rau kev tsis lees paub kev ua haujlwm hla 127 txoj haujlwm nquag. Plaub hom kev ua tsis tiav-txhua qhov txuas ncaj qha mus li cas a kev pabcuam casting tsim nws workflow:
- Microshrinkage nyob rau hauv high-alloy valve lub cev: tshwm sim thaum thermal gradients siab tshaj 12 ° C / mm thaum solidification. Kho tsuas yog nrog lub sijhawm tiag tiag ntawm kev saib xyuas cov thermocouple hauv pwm kab noj hniav - tsis yog tom qab ncuav tshuaj xyuas.
- GD&T drift ntawm as-casting thiab tiav xeev: Ua los ntawm kev ntxhov siab tsis sib haum xeeb. Peb ntsuas qhov seem ntawm kev ntxhov siab ua ntej thiab tom qab annealing siv XRD; Cov neeg siv uas hla qhov no pom 0.08-0.15 hli warpage ntawm 300-mm lub tog raj kheej vaj tse.
- Kev sib xyaw ua ke hauv cov cobalt alloys: Ua los ntawm ladle refractory yaig. Txheeb xyuas ntawm ASTM E45 Hom A suav nrog kev ntsuas - tsis yog kev kuaj pom xwb.
- Dimensional tawg nyob rau hauv uas tsis yog-tus qauv winch ncej rollers: Cov txiaj ntsig tau los ntawm cov ntawv luam tawm tsis raug cai. Kev daws teeb meem tsuas yog nrog kev kho qhov muag ntawm cov thawv tseem ceeb ua ntej txhua qhov kev hloov pauv.
Tsis muaj ib qho ntawm cov no yog "cov teeb meem zoo." Lawv tau ci rau hauv cov txheej txheem casting. Koj tsis tuaj yeem tshawb xyuas koj txoj kev tawm ntawm lawv.
Hybrid Advantage: Qhov twg Casting Stops thiab Machining pib
Casting tsis yog ib kauj ruam nyob ib leeg-nws yog lub hauv paus rau dab tsi los tom ntej. Lub siab valve lub cev cam khwb cia hlau hlau yuav xav tau 17 cais CNC kev ua haujlwm: qhov sib sib zog nqus qhov drilling rau kev tsav tsheb, contour milling ntawm sealing nto, xov whirling rau high-torque kev sib txuas. Tab sis yog tias cov phab ntsa tuab ntawm qhov sib txawv ntawm ± 1.2 hli, cov cuab yeej lub neej poob 40%, thiab nto tiav ntawm lub ntsej muag sealing yuav tsis rov ua dua.
Tias yog vim li cas qhov tseeb kev ntseeg xav tau hybrid tswj. Ntawm peb lub chaw Qingdao, tib tus kws ua haujlwm siv tau ob qho tib si kev nqis peev casting ciab qauv thiab 5-axis machining program. Peb siv laser-scanned as-cam khwb cia cov ntaub ntawv rau nws pib-kho toolpaths-txiav lub sij hawm los ntawm 22% ntawm AMS 5387 twj tso kua mis qhov chaw thaum tuav Ra ≤0.4 µm ntawm qhov tseem ceeb sealing av. Qhov no tsis yog software khawv koob. Nws yog cross-functional qhuab qhia: metallurgists qhia solidification simulation ntaub ntawv nrog machinists; Cov kws tshaj lij QC calibrate CMM sojntsuam siv tib tus tswv gages siv hauv kev tshuaj xyuas qhov chaw.
Yog tsis muaj lub voj voog, koj tab tom tswj hwm ob qhov kev pheej hmoo sib cais - tsis yog ib qho kev daws teeb meem.
Qhov "Reliable" tiag tiag txhais tau li cas rau koj qhov project tom ntej
Kev ntseeg tsis yog kev thov kev lag luam. Nws ntsuas tau: 99.2% thawj-lub sij hawm tawm los ntawm cobalt-alloy nozzles, 100% cov ntaub ntawv traceability mus rau lub tshav kub tooj thiab yaj cav, thiab xa adherence nyob rau hauv ± 3 hnub hla 86% ntawm nruab nrab-ntim xaj (2023 cov ntaub ntawv). Nws txhais tau tias koj qhov kev tshuaj xyuas kev kos duab suav nrog cov lus tawm tswv yim xws li "Txiv datum B 0.3 hli sab hauv-qhov no zam tsis pub 0.1 hli cuam tshuam nrog lub rooj vag" es tsis txhob "Peb yuav sim peb qhov zoo tshaj plaws."
Yog tias koj qhov kev txiav txim tom ntej no suav nrog cov hlau castings rau oilfield manifolds, stainless hlau vaj tse rau subsea twj, lossis cov khoom tsis yog T800 uas yuav tsum tau ua raws li ASME BPVC Section II, nug koj kev pabcuam casting peb lo lus nug: Koj puas tuaj yeem qhia kuv txog peb daim ntawv tshaj tawm CMM kawg rau ib feem cuam tshuam nrog kuv qhov tseem ceeb ntawm kev ua siab ntev stack-up? Leej twg yog tus tswv lub sij hawm saib xyuas tus qauv - thiab ntau npaum li cas yog qhov tseem ceeb ntawm lub thawv ntawv txheeb xyuas? Thaum twg yog koj qhov kev tshuaj xyuas sab hauv kawg tawm tsam ISO 9001: 2015 Clause 8.5.1 (Kev tsim khoom thiab kev pabcuam)?
Cov lus teb yuav qhia rau koj ntau tshaj ib daim ntawv qhia.
