Thaum cov kws ua haujlwm qhia cov khoom tsis muaj steel hlau rau hydraulic li qub, lub twj tso kua mis, lossis lub winch shafts - qhov chaw uas yuav tsum muaj sia nyob 300+ bar siab, abrasive slurry flow, los yog cyclic thermal stress - lawv tsis tshua nug "Kuv yuav siv txoj kev casting li cas?" Lawv nug: "Qhov no puas yuav kam rau siab ± 0.02 hli * thiab * tiv taus pitting corrosion hauv seawater kev pabcuam * thiab * nkoj hauv 6 lub lis piam? Qhov ntawd yog qhov tseeb poob ciab casting stainless hlau Hoobkas khwv tau nws qhov chaw - tsis yog tus neeg muag khoom, tab sis raws li kev tsim qauv txuas ntxiv.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ua haujlwm ib qho chaw hauv Qingdao. Peb tau nrum AISI 316L valve lub cev rau North Sea subsea tswj modules qhov twg ib qho microporosity tsis xws luag yuav ua rau tag nrho kev tsis lees paub. Peb tau machined AMS 5387 cobalt alloy nozzles rau high-pressure roj txhaj twj-khoom siv nyuaj heev nws hnav cov cuab yeej carbide sai dua li qhov xav tau-thiab xa thawj cov tshooj lus nrog CMM-tsim phab ntsa thickness variation nyob rau hauv 0.015 hli. Qhov no tsis yog theoretical muaj peev xwm. Nws tau rov ua tiav thoob plaws 127 qhov kev tsim tawm xyoo tas los ib leeg.
Peb qhov tseeb ntawm qhov tseeb cais qhov tseeb poob ciab casting los ntawm cov khw muag khoom "kev nqis peev casting" - thiab vim li cas lawv tseem ceeb rau koj qhov project ncua sij hawm thiab kev cia siab ntawm thaj chaw:
- Khoom siv traceability pib ua ntej pwm: Peb tau txais cov ntawv pov thawj stainless hlau ingots tau ntawv pov thawj rau ASTM A743 / A744 Qib CF8M thiab EN 1.4408-nrog rau tag nrho cov ntawv pov thawj thaum tshav kub kub, spectrographic tsom xam cov ntaub ntawv, thiab intergranular corrosion xeem tau archived ib tug ntau. Tsis muaj batch hloov. Tsis muaj "qib sib npaug" hloov yam tsis muaj engineering kos npe tawm.
- Dimensional tswj nyob hauv tus qauv, tsis yog daim ntawv tshuaj ntsuam xyuas: Peb cov qauv siv quav ciab yog CNC-machined los ntawm cov khoom POM, tsis yog 3D-printed resin. Vim li cas? Vim tias POM tuav ± 0.01 hli tshaj 200 hli ntawm 22 ° C ambient - thiab shrinks kwv yees thaum dewaxing. Cov qauv luam tawm distort unpredictably saum 150 mm. Peb xyuas txhua tus qauv nrog optical contour scanning * ua ntej * plhaub tsev pib.
- Surface kev ncaj ncees yog tsis-negotiable rau functional sealing: Lub rooj zaum siab valve tsis polished rau qhov zoo. Nws yog av rau Ra ≤0.4 µm * tom qab * kev kho cua sov -vim residual tensile stress nyob rau hauv lub as-cast nto txheej ua rau micro-cracking nyob rau hauv cyclic load. Peb muab cov tshuaj annealing (1050 ° C + dej quench) thiab kev sib tsoo kev ntxhov siab rau hauv ib qho kev tswj hwm. Tsis yog ob txoj haujlwm sib cais.
Qee tus yuav sib cav tias xuab zeb casting ua tiav cov nqi zoo sib xws rau qhov loj stainless. Tab sis thaum koj lub piston twj tso kua mis lub tog raj kheej vaj tse yuav tsum tau nyob rau hauv cov cua txias channel nrog 3.2 hli phab ntsa thickness, concentricity nyob rau hauv 0.05 mm nyob rau hauv 320 mm ntev, thiab xoom nyob rau hauv shrink kab noj hniav - xuab zeb casting tsis ua hauj lwm. Poob ciab muab nws. Peb tau ntsuas cov kab noj hniav tsis pub muaj txiaj ntsig ntawm 94.7% rau cov vaj tsev nyob hauv qab 12 kg, piv rau 61% rau cov xuab zeb sib piv hauv peb qhov kev ntsuas sab hauv. Qhov txawv? Plhaub pwm permeability tswj, meej preheat ramp tus nqi, thiab nqus-pab pouring-tag nrho calibrated ib qib alloy thiab seem thickness.
Qhov no txhais li cas rau koj qhov kev txiav txim yuav khoom? Ua ntej, coj lub sij hawm compression. Peb cov kev ua haujlwm lean sib koom ua ke GD&T tshuaj xyuas * thaum lub sijhawm ua haujlwm * siv quav ciab-tsis yog tom qab kev tsim cov cuab yeej. Peb chij cov teeb meem muaj peev xwm, cov cim dab dej, lossis kev cuam tshuam ntawm koj cov ntaub ntawv STEP hauv 48 teev. Thib ob, txo kev pheej hmoo. Txhua stainless hlau casting undergoes 100% MPI (magnetic particle soj ntsuam) * thiab * ultrasonic kuaj rau subsurface flaws. Thib peb, scalability. Peb khiav cov kab sib txuas ua ke - ib qho rau cov qauv tig nrawm (7-10 hnub), lwm qhov rau kev txiav txim siab nruab nrab (50-500 pcs) nrog rau cov voj voog ruaj khov thiab sib koom ua haujlwm tom qab kev kho cua sov. Tsis xav tau kev tsim nyog ntawm ntau ntau.
Saib ua ntej: Cov pem hauv ntej tom ntej tsis yog nruj dua kev ua siab ntev-nws yog kev tsim khoom hybrid. Peb tam sim no embed machined nrhiav nta ncaj qha mus rau hauv lub peev casting qauv. Lub hauv paus twj tso kua mis tuaj txog nrog nws lub qhov txuas, dowel pin bores, thiab sealing nto twb CNC-tiav lawm-txo theem nrab ops los ntawm 68%. Rau T800 cobalt-based superalloys, peb muab cov kev taw qhia ua kom muaj zog thaum lub sij hawm casting nrog cryogenic machining los khaws cov qauv kev ncaj ncees. Cov no tsis yog R & D tswv yim. Lawv tab tom khiav hauv kev tsim khoom rau peb European OEMs hnub no.
Yog tias koj xav tau cov khoom siv hlau stainless uas tsis ua haujlwm tsis yog qhov kev xaiv - thiab qhov "precision" txhais tau tias ntsuas tau, rov ua dua, ua tiav cov ntaub ntawv - tom qab ntawd koom tes nrog poob ciab casting stainless hlau Hoobkas uas kho metallurgy zoo li physics, tsis yog folklore, hloov txhua yam. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. tsis yog cam khwb cia hlau. Nws lees paub muaj nuj nqi.
