Thaum cov kws tshaj lij qhia cov khoom siv stainless hlau rau hydraulic li qub, twj tso kua mis vaj tse, los yog offshore winch shafts, lawv tsis tsuas yog xav tau hlau - lawv xav tau kev ruaj ntseg nyob rau hauv 300 bar, corrosion kuj nyob rau hauv ib puag ncig chloride-laden, thiab microstructural kev ncaj ncees tom qab kev kho cua sov. Yog vim li cas ib peev casting stainless hlau Hoobkas tsis yog tus neeg muag khoom - nws yog kev txuas ntxiv ntawm pab pawg tsim.
Peb tau pom ntau qhov chaw nres tsheb ntawm cov qauv qauv vim tias cov chaw tsim khoom tau kho cov hlau tsis zoo li cov hlau: tib lub rooj vag, tib qhov cua txias, tib yam kev soj ntsuam. Tab sis 316 stainless shrinks 12% ntau tshaj cam khwb cia hlau thaum solidification. Nws thermal conductivity yog ib nrab ntawm aluminium. Thiab nws cov txheej txheej oxide-tseem ceeb rau kev ua kom dhau-cov ntaub ntawv tsuas yog thaum txias ua raws li qhov tseeb 5-10 ° C / min qhov rais tom qab-casting. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., peb kho txhua txhua stainless hlau peev casting raws li ib tug metallurgical tshwm sim - tsis yog ib tug zoo li tus txheej txheem.
Precision pib ua ntej pwm yog nchuav
Feem ntau cov neeg yuav khoom xav tias peev casting raug los ntawm ceramic plhaub thickness tswj. Tsis yog. Nws pib nrog wax qauv geometry - thiab yuav ua li cas geometry cuam tshuam nrog alloy shrinkage. Piv txwv li: lub piston twj tso kua mis lub tog raj kheej vaj tse ua los ntawm ASTM A473 Qib 316 yuav tsum tuav ± 0.05 hli ntawm tus ID bore hla 280 hli ntev. Peb ua tiav qhov no los ntawm calibrating wax expansion tiv thaiv qhov kawg alloy contraction siv nyob rau hauv lub tsev thermal simulation - tsis generic kab kos. Peb pab neeg ua haujlwm kho cov kaum sab xis los ntawm 0.15 ° nce raws li phab ntsa thickness gradients, tsis yog cov qauv qauv. Peb tau lees paub txoj hauv kev no hla 172 kev tsim tawm ntawm lub siab lub cev valve; 99.4% dhau thawj kab ntawv CMM pov thawj yam tsis muaj kev rov ua haujlwm dua.
Qhov kev tswj hwm qib no xav tau kev sib koom ua ke ntsug. Peb tsis tawm ntawm lub tsev plhaub, dewaxing, los yog cub tswj. Peb lub chaw ua haujlwm ISO-raws li kev tswj hwm tag nrho peb-thiab txuas lawv mus rau cov ntaub ntawv thermocouple real-time los ntawm txhua lub crucible. Thaum melting 316 stainless, peb saib xyuas cov ntsiab lus oxygen tsis tu ncua. Tshaj 25 ppm? Lub batch ua rau tsis siv neeg hloov mus rau cov ntawv thov tsis tseem ceeb. Tsis muaj kev zam.
Qhov twg Cobalt Alloys thiab Stainless Steel Converge
Ntawm no yog dab tsi feem ntau pawg neeg yuav khoom tsis nco: stainless hlau peev casting tsis yog cais los ntawm kev ua haujlwm superalloy. Ntawm peb qhov chaw, tib lub qhov cub ua kom sov AMS 5387 cobalt alloy thiab CF8M stainless. Vim li cas? Vim hais tias ob qho tib si xav tau tib yam atmospheric tswj (nqus + argon backfill), zoo tib yam pwm preheat ramps (120 ° C / h txog 1,100 ° C), thiab zoo tib yam shakeout lub sij hawm qhov rais (± 90 vib nas this). Qhov kev qhuab qhia hla txoj kev no txhais tau hais tias peb cov hlau tsis xeb tau txais cov txheej txheem kev tswj xyuas thermal-tsis muaj kev sim-thiab-yuam kev kawm nkhaus.
Siv T800-based twj tso kua mis. Lawv hardness (42–48 HRC) yuav tsum tau tov annealing ntawm 1,120 ° C tom qab dej quenching nyob rau hauv 45 vib nas this. Peb ua qhov quench rig rau hauv cov kab nrib pleb - tsis yog qhov kev xav tom qab. Qhov tshwm sim: xoom distortion ntawm 142 mm-inch impeller hubs qhov twg cov neeg muag khoom ua ntej tshaj tawm 0.18 mm runout.
- Siab li qub: ASME B16.34 Chav Kawm 600, tau lees paub rau NACE MR0175 / ISO 15156
- Piston twj tso kua mis lub tog raj kheej vaj tse: GD & T-raws li ASME Y14.5-2018, suav nrog profile ntawm kev tswj saum npoo rau mating flanges
- Engineering tsheb winch center ncej chais: Hardness txheeb xyuas ib ASTM E10, nto tiav Ra ≤0.8 µm as-cam khwb cia
- Cobalt alloy nozzles: Dimensional stability paub tseeb tias tom qab 500 thermal voj voog ntawm -40 ° C thiab + 220 ° C
Vim li cas "Certified Raw Materials" Tsis yog Kev Lag Luam xwb
"Peb siv cov ntawv pov thawj stainless hlau" tshwm nyob rau 83% ntawm cov chaw muag khoom lub vev xaib. Tab sis daim ntawv pov thawj txhais tau tias tsis muaj dab tsi yog tias traceability nres ntawm lub coil lossis. Ntawm peb qhov chaw, txhua tus xov tooj cua sov ntws ncaj qha rau hauv peb lub ERP system - thiab daim duab qhia chaw rau cov castings tshwj xeeb ntawm laser-etched ntau cov lej ntawm txhua feem. Thaum tus neeg siv khoom thov tag nrho cov ntaub ntawv pedigree rau subsea valve kev txiav txim, peb tau xa cov ntaub ntawv kuaj zeb, cov ntaub ntawv txheeb xyuas cov ntaub ntawv, thiab cov ntaub ntawv rau lub cub tawg-txhua lub sijhawm muab khi rau tus lej casting. Qhov theem ntawm qhov pom tseeb tsis yog xaiv tau. Nws yog qhov yuav tsum tau ua raws li API 6A - thiab nws tau ci rau hauv peb qhov kev ua haujlwm, tsis yog bolted rau kev tshuaj xyuas.
Peb tau txais 316, 304L, thiab duplex 2205 nkaus xwb los ntawm cov mills nrog EN 10204 3.1 ntawv pov thawj - thiab tshawb xyuas chemistry thaum tau txais kev siv LIBS spectrometry. Yog tias chromium poob qis dua 16.5% hauv 304L qauv, tag nrho cov kauj raug cais tawm ua ntej tshem tawm. Tsis muaj kev zam. Tsis yog "qhov no tsuas yog ib zaug xwb."
Kev xa tawm tiag txhais tau tias muaj tseeb tiag
Nug tsib tus neeg muag khoom rau lub sijhawm ua haujlwm ntawm stainless hlau peev casting, thiab koj yuav tau txais tsib lo lus teb - nrog rau ntau yam 8 txog 22 lub lis piam. Peb qhov ruaj khov: 14 lub lis piam rau thawj tsab xov xwm, 10 lub lis piam rau kev txiav txim rov qab - lav. Yuav ua li cas? Los ntawm kev xauv lub peev xwm thaum ntxov: 30% ntawm peb lub plhaub-tsev chaw nres tsheb yog tshwj tseg rau cov qauv tshwj xeeb stainless, thiab peb lub tshuab nqus tsev vacuum induction furnaces teem caij tsis muaj cua sov hauv cov blocks txhua lub lim tiam. Tsis muaj kev sib pauv alloys nruab nrab khiav. Tsis muaj kev pheej hmoo kis kab mob. Tsis xav tsis thoob ncua los ntawm kev sib koom.
Peb ua raws li cov lus cog tseg no txhua hnub. Peb lub hlis dhau los, 97.2% ntawm stainless hlau xaj xa tuaj rau lossis ua ntej hnub cog lus. Qhov sib txawv ntawm 2.8%? Tag nrho cov taug qab rau cov neeg siv khoom thov kev hloov pauv engineering tom qab kev pom zoo ntawm cov cuab yeej - tsis yog txheej txheem sab hauv.
Yog tias koj qhov project tom ntej xav tau tus khub uas kho cov hlau tsis muaj peev txheej casting li metallurgy, tsis yog kev tsim khoom - koj xav tau ib qho peev casting stainless hlau Hoobkas ua rau precision, tsis ntim. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ua haujlwm li ntawd - tsis yog vim nws yooj yim, tab sis vim tias muaj kev kub siab, siab corrosion, siab-kev ntseeg siab daim ntawv thov tawm tsis muaj chaw rau kev cuam tshuam. Precision tsis yog chav haujlwm ntawm no. Nws yog lub operating system.
