Hlau pwm casting muab rov ua qhov tseeb qhov twg cov xuab zeb casting falters-tshwj xeeb tshaj yog rau qhov chaw xws li hydraulic siab li qub, piston twj tso kua mis lub tog raj kheej, thiab cobalt-alloy nozzles uas xav tau nruj tolerances, zoo ib yam microstructure, thiab xoom seem drift hla batches. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., peb tau khiav dhau 12,000 hlau pwm casting cycles txij li xyoo 2018 - tsis yog ib qho kev tawm dag zog, tab sis los daws qhov ua tsis tiav: warping hauv T800 alloy twj tso kua mis, porosity nyob rau hauv AMS 5387 valve lub cev, thiab nto tawg thaum tshav kub kub kho. Txhua qhov kev ua tsis tiav tau qhia peb tias cov phau ntawv tau tshem tawm li cas: pwm tswj qhov kub thiab txias tseem ceeb tshaj qhov purity alloy; gating tsim dictates qaug zog lub neej ntau tshaj tensile zog; thiab ua ntej kub sib xws tiv thaiv 73% ntawm thawj-thooj seem hauv high-nickel castings.
Vim li cas Hlau Pwm Casting Yeej Thaum Precision Tsis-Negotiable
Xuab zeb casting ua haujlwm rau qhov ntim qis, qhov siab siab siab. Tab sis thaum koj cov khoom yuav tsum tuav ± 0.05 hli ntawm lub 320 hli txoj kab uas hla lub tog raj kheej vaj tse - los yog ciaj sia 15,000 psi pulsation nyob rau hauv ib tug oilfield twj tso kua mis los ua ke - hlau pwm casting yog tib txoj kev siv tau. Nws cov hlau tsis nruj los yog cam khwb cia hlau pwm tiv thaiv thermal expansion, xa cov cua txias sib xws, thiab tshem tawm qhov sib txawv ntawm cov xuab zeb sib xyaw. Peb ntsuas qhov no txhua hnub: peb cov hlau castings qhia 42% tsawg shrinkage variation dua li sib npaug xuab zeb-cam khwb cia ntau ntau, thiab peb stainless hlau twj tso kua mis foundations tiav Cpk ≥1.67 ntawm tseem ceeb GD&T callouts-tsis muaj lwm yam machining.
Kev them nyiaj tsis yog qhov loj me xwb. Hlau moulds pab kom muaj kev ruaj ntseg. Peb taw qhia pwm vertically rau piston vaj tse, yuam pub hlau nce los ntawm hauv qab risers. Qhov no tshem tawm qhov nruab nrab porosity nyob rau hauv cov ntu tuab - qhov tsis ua haujlwm ntev ntawm cov xuab zeb sib npaug. Rau cobalt-nickel alloys zoo li AMS 5387, qhov kev hloov ib zaug txo cov voids sab hauv los ntawm 91% hauv peb tog NDT kev tshuaj xyuas. Tsis muaj txheej, tsis muaj binder, tsis muaj kwv yees-tsuas yog physics, tswj.
Qhov twg Nws Ua Tsis Taus—thiab Yuav Ua Li Cas Kom Zam Tsis Taus
Qee qhov sib cav hlau pwm casting yog qhov tsis yooj yim rau kev khiav qis. Lawv yog lawm - yog tias koj kho nws zoo li xuab zeb casting. Tab sis yooj yim los ntawm cov txheej txheem tsim, tsis yog cov khoom pwm. Peb tau xa cov qauv ua haujlwm hauv 11 hnub siv cov cuab yeej siv ceev ceev rau T800 alloy nozzles. Qhov dag? Pre-muaj peev xwm pwm inserts machined los ntawm H13 cuab yeej steel, pre-hardened mus rau 48 HRC, nrog kev sib xyaw thermocouple ports rau real-time kab noj hniav xyuas. Cov ntaub ntawv ntawd pub ncaj qha rau hauv peb qhov kev sim ua kom muaj zog - yog li qhov thib ob ncuav sib tw rau thawj zaug, txawm tias ntawm 50 units.
Tus nqi cuab yeej tsis yog cuab yeej - nws tsis quav ntsej txog kev sib cuam tshuam metallurgical. Peb ib zaug tau txais ib daim duab qhia "ASTM A487 Qib CA6NM stainless hlau" rau lub hauv paus twj tso kua mis subsea. Tus spec yog lawm. Qhov kev tua tsis yog: kev tswj tsis tau pwm txias ua rau cov nag lossis daus ntawm cov qoob loo. Yield poob mus rau 38%. daws? Peb hloov mus rau tswj-cua cua quenching hauv pwm kab noj hniav, tom qab ntawd ntxiv 1050 ° C tov anneal nrog dej quench. Yield dhia mus rau 94%. Zaj lus qhia: hlau pwm casting tsis hloov metallurgical kev qhuab qhia - nws ua kom nws cov txiaj ntsig.
Yuav ua li cas QINGDAO QIANGSENYUAN Integrate Casting Nrog Real-World Performance
Peb tsis cais casting los ntawm kev ua haujlwm. Peb cov engineers tshuaj xyuas txhua GD&T thav duab - tsis yog rau kev tsim khoom ib leeg, tab sis rau kev pabcuam thauj khoom. Lub siab valve lub cev tsis yog ib qho zoo xwb; nws yog txoj kev nyuaj siab. Yog li peb embed strain gauges nyob rau hauv ntau lawm pwm los qhia thermal gradients thaum solidification. Cov ntaub ntawv ntawd qhia peb qhov twg qhov kev ntxhov siab yuav nyob twj ywm - thiab qhov twg yuav ntxiv qhov chaw machining nyem los yog tom qab lub voj voog kev ntxhov siab.
- Cobalt-alloy nozzles: Cam khwb cia nyob rau hauv pre-rhuab H13 pwm ntawm 550 ° C, ces cua txias kom tsis txhob brittle intermetallic tsim.
- Engineering tsheb winch shafts: Xuab zeb-molded cores ntxig rau hauv cov pwm hlau rau hybrid geometry tswj-txheej txheej plhaub, complex sab hauv spline kab noj hniav
- Hydraulic lub tog raj kheej Housing: Machined ncaj qha los ntawm as-cam khwb cia lub xeev siv nyob rau hauv-lub tsev 5-axis CNC-tsis re-fixturing, tsis muaj datum hloov
Qhov kev sib koom ua ke no txo cov sij hawm ua cov hmoov txhuas los ntawm 30% piv rau cov txheej txheem casting + machining lwm tus neeg. Qhov tseem ceeb tshaj, nws tau lees paub txog kev taug qab: txhua qhov ntau yog nqa tag nrho cov keeb kwm thermal, tshuaj ntsuam xyuas tshuaj, thiab CMM cov ntaub ntawv tshuaj xyuas - txuas rau cov ntaub ntawv raw khoom los ntawm cov mills pom zoo.
Xaiv Koj Tus Tswv Cuab—Tshaj Daim Ntawv Qhia
Nug ib tus neeg muag khoom txog lawv cov hlau pwm casting peev xwm. Tom qab ntawd nug peb qhov kev taug qab: Dab tsi yog koj qhov ntev tshaj plaws khiav pwm rau AMS 5387? Yuav ua li cas koj validate pwm kub ua ntej txhua ncuav? Koj puas tuaj yeem muab daim ntawv tshaj tawm FAI tsis ntev los no uas qhia tias yog-cam khwb cia thiab qhov ntev kawg ntawm ib feem nrog ≥5 qhov tseem ceeb GD&T nta?
Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., peb cov lus teb yog ntsuas tau: 8,200 nchuav rau ntawm ib qho T800 nozzle pwm; infrared pyrometer validation ntawm 3 cov ntsiab lus ntawm ib kab noj hniav, nkag tau txais; thiab FAI cov ntaub ntawv qhia txog 0.012 hli qhov sib txawv nruab nrab ntawm 12-point cylindrical runout rau 280 hli twj tso kua mis. Peb tshaj tawm cov no tsis yog kev lag luam - tab sis vim tias hlau pwm ua tiav nyob rau hauv cov lej, tsis yog cov lus cog tseg.
Rau cov ntawv thov uas tsis ua haujlwm txhais tau tias tsis muaj sijhawm, kev pheej hmoo nyab xeeb, lossis kev tswj hwm tsis ua raws-hlau molding tsis yog kev xaiv. Nws yog lub hauv paus. Thiab tus khub zoo ua rau qhov sib txawv ntawm kev rov ua dua qhov tseeb thiab raug nqi rov ua dua tshiab.
