Koj pom tus spec zoo li N08028 tuaj hla lub rooj, thiab thawj qhov kev xav rau ntau lub khw yog kho nws zoo li lwm yam super austenitic stainless. Qhov ntawd yog qhov teeb meem pib. Nws tsis yog zoo dua 316L. Nws yog ib tug tsiaj nyaum sib txawv kiag li, tsim rau ib puag ncig chloride hnyav, thiab yog tias koj tsis hwm nws cov quirks-tshwj xeeb tshaj yog thaum lub sij hawm machining thiab tom qab-casting kev kho mob-koj tab tom teeb tsa koj tus kheej rau cov nqi rov ua dua lossis, qhov phem dua, kev ua haujlwm tsis zoo. Kuv twb pom lawm. Qhov no yog tsawg dua phau ntawv txhais lus thiab ntau qhov sau los ntawm kev soj ntsuam los ntawm qhov ua tau nrog nws.
Alloy Nws tus kheej: Ntau tshaj li tus lej xwb
Nyob rau hauv daim ntawv, N08028 (los yog Alloy 28, yog tias koj nyiam lub npe nrov) yog high-nickel, high-chromium, low-carbon stainless nrog tseem ceeb molybdenum thiab tooj liab ntxiv. Cov tooj liab yog qhov tseem ceeb - nws yog qhov ua rau muaj kev tiv thaiv corrosion hauv sulfuric thiab phosphoric acid cov kev pabcuam tshaj li qhov 904L muaj. Tab sis daim ntawv spec tsis qhia koj txog cov stringy, tawv chips nws ua thaum tig, los yog yuav ua li cas nws cov thermal conductivity tsawg txhais tau tias cua sov concentrates txoj cai ntawm kev txiav ntug. Koj tsis tuaj yeem khiav cov cuab yeej kom nrawm li nrog 316, thiab qhov kev xaiv txias txias dhau los ua qhov tseem ceeb. Ib lub khw uas nyob ib puag ncig, zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nrog lawv peb lub xyoo caum hauv casting thiab machining, yuav tau txhim tsa qhov kev paub tactile no. Koj kawm mloog lub tshuab, saib cov xim nti.
Ib qho pitfall yog xav tias nws cov weldability yog ncaj nraim. Nws tsis txaus ntshai, tab sis nws xav tau high-purity shielding gases thiab nruj interpass kub tswj kom tsis txhob kub tawg. Peb ib zaug muaj ib pawg ntawm lub cev loj valve, nrum ntawm lawv plhaub molding txheej txheem, uas tsim cov microfissures zoo nyob rau hauv HAZ tom qab vuam. Lub hauv paus ua rau? Cov kab ntawm noo noo nyob rau hauv argon kab. Ib qho me me, qhov tshwm sim loj heev. Nws yuam kev tshuaj xyuas ntawm txhua txoj kab roj av thiab lub tog raj kheej hauv qhov vuam bay.
Qhov twg no alloy tiag tiag ci yog nyob rau hauv ib puag ncig uas yuav noj lwm yam stainless hlau ciaj sia. Xav tias flue gas desulfurization scrubber internals, los yog piping rau offshore systems uas chlorides thiab CO2 muaj ob qho tib si. Nws yog ib qho kev daws teeb meem rau ib qho teeb meem tshwj xeeb, tsis zoo. Koj tsis qhia nws vim nws yog tus nqi, koj qhia nws vim tsis muaj dab tsi ntxiv yuav kav ntev.
Casting Challenges: Los ntawm Molten Hlau mus rau Suab Casting
Kev nqis peev casting feem ntau yog mus rau qhov nyuaj N08028 tshwj xeeb stainless hlau qhov chaw, tshwj xeeb tshaj yog cov uas muaj intricate intricate passages. Qhov tseeb qhov tseeb yog qhov yuav tsum tau ua. Tab sis N08028 muaj lub siab thermal expansion coefficient thiab nyiam mus rau micro-shrinkage. Lub rooj vag thiab rising tsim yuav tsum yog qhov chaw-rau pub lub casting kom zoo thiab tiv thaiv qhov nruab nrab porosity. Nws yog ib qho kev kos duab txhawb nqa los ntawm simulation software hnub no, tab sis kev paub dhau los tsis tuaj yeem hloov pauv. Ib lub tsev qiv ntawv tus qauv thiab cov ntaub ntawv keeb kwm ntawm cov geometry zoo sib xws yog tsim nyog rau lawv qhov hnyav hauv kub.
Plhaub pwm casting, lwm yam ntawm QSY cov txheej txheem teev tseg, tuaj yeem ua tau zoo heev rau qhov sib txawv me ntsis tab sis tseem muaj qhov tseem ceeb. Qhov tseem ceeb ntawm no yog cov khoom siv pwm thiab cov hlau-pwm sib cuam tshuam. Nrog N08028 cov ntsiab lus siab nickel, txhua tus sulfur hauv pwm xuab zeb tuaj yeem ua rau muaj kev puas tsuaj kub kub tearing. Koj xav tau high-purity, chemically bonded xuab zeb. Nws yog ib qho kev nthuav dav uas cais lub khw uas tuaj yeem nchuav los ntawm ib qho uas tuaj yeem tsim tau ib qho kev txhim khu kev qha, suab casting npaj rau machining.
Kev kho cua sov yog tsis-negotiable: daws annealing raws li sai quench. Lub hom phiaj yog kom tau txais tag nrho cov khoom kim heev alloying - cov chromium, molybdenum, tooj liab - rov qab mus rau hauv cov tshuaj tov thiab khaws cia rau ntawd. Kev ua kom txias qeeb lossis, ntuj ceeb tsheej txwv, cua txias los ntawm qhov nruab nrab kub tuaj yeem ua rau cov theem nrab hauv cov ciam teb, ua kom puas tsuaj rau corrosion uas koj them rau. Kuv tau pom cov khoom ua tsis tau qhov kev sim yooj yim ferric chloride vim tias ib tus neeg xav tias lawv tuaj yeem hla cov dej quench ntawm qhov tuab-section casting kom txo tau kev ntxhov siab. Lawv txo qhov kev pab cuam lub neej mus rau lub hlis es tsis txhob xyoo.
Machining: Qhov Kev Xav Tau Raws Li Cov Cuab Yeej
Qhov no yog qhov uas cov roj hmab tau raws txoj kev. Raws li tau hais tseg, N08028 ua haujlwm hnyav heev. Koj cov khoom noj thiab nrawm yuav tsum nruj txaus kom tau raws li cov txheej txheem ua haujlwm nyuaj los ntawm kev txiav yav dhau los. Lub teeb, kev ua haujlwm tsis zoo yog qhov phem tshaj plaws uas koj tuaj yeem ua tau - nws tsuas yog hammers saum npoo thiab hlawv cov cuab yeej. Qhov zoo rake geometry, cov cuab yeej ntse, thiab kev teeb tsa nruj yog qhov yuav tsum tau ua. Peb ua qauv ntawm cov qib tshwj xeeb ntawm carbide nrog cov chipbreakers ntxiv rau roughing thiab xov.
Coolant tsis yog ua kom txias xwb; Nws yog rau lubrication ntawm qhov kev sib txuas thiab rau cov stringy chips tshem tawm ua ntej lawv welding lawv tus kheej mus rau lub workpiece los yog cov cuab yeej. High-pressure, los ntawm cov cuab yeej coolant xa los ua tus qauv yuav tsum tau rau peb CNC machining chaw khiav cov khoom no. Ib lub khw CNC machining muaj peev xwm tsis yog hais txog lub hom ntawm lub tshuab; nws yog hais txog cov koom haum pabcuam no thiab cov ntaub ntawv pov thawj uas lawv tau tsim los ua haujlwm.
Threading thiab tapping yog tshwj xeeb tshaj yog cov haujlwm me me. Cov ntaub ntawv toughness nyiam lob thiab gall. Rau cov xov tseem ceeb, peb feem ntau tau tsiv mus rau xov milling es tsis txhob tapping, uas muab kev tswj zoo dua thiab tawg cov chips zoo dua. Rau qhov dhau-qhov, muab kauv-flute kais dej nrog lub siab siab (EP) additive nyob rau hauv lub coolant yog tib yam uas ua hauj lwm tas mus li yam tsis tau chipping tus kais los yog txeeb nws nyob rau hauv lub qhov.
Kev Ntsuas Zoo: Nws tsis yog PMI Phom nkaus xwb
Positive Material Identification (PMI) yog qhov tsawg kawg nkaus. Koj luam theej duab lub billet lossis casting thiab paub meej tias cov ntsiab lus tseem ceeb nyob hauv ntau yam. Tab sis qhov ntawd yog qhov pib xwb. Rau qhov tseem ceeb ntawm kev pabcuam, koj yuav tsum txheeb xyuas qhov microstructure. Tus qauv etch yuav qhia yog tias koj tau ua tiav cov qauv austenitic tag nrho tsis muaj teeb meem nag lossis daus. Ntau cov txheej txheem zoo li electrochemical potentiokinetic reactivation (EPR) kev ntsuam xyuas tuaj yeem ntsuas qhov ntsuas ntawm qhov kev xav, uas yog qhov tseem ceeb rau cov khoom siv rau kev sib dhos welded.
Kev kuaj tsis muaj kev puas tsuaj yog qhov tseem ceeb ntxiv. Dye penetrant testing yog qhov zoo rau qhov tsis xws luag, tab sis rau lub suab sab hauv koj txhawj xeeb txog los ntawm cov txheej txheem casting, radiography (X-ray) feem ntau teev. Cov kev lees paub feem ntau yog nruj dua li cov qauv stainless hlau. Ib pawg ntawm porosity uas tuaj yeem lees txais hauv 304 feem yuav yog qhov tsis lees paub rau N08028 ib feem hauv kev pabcuam chloride, vim nws yog qhov chaw pib muaj peev xwm rau pitting.
Thaum kawg, kev sim ua haujlwm. Rau cov khoom siv valve lossis cov twj tso kua mis, qhov no yuav suav nrog kev sib dhos thiab kev kuaj xyuas lub rooj zaum. Cov khoom siv ua haujlwm tsuas yog qhov tseem ceeb yog tias qhov kawg ua nws txoj haujlwm. Qhov kawg-rau-kawg tswj, los ntawm yaj mus rau qhov kawg tshuaj ntsuam xyuas, yog dab tsi tus neeg muab khoom muaj peev xwm muab. Nws yog qhov sib txawv ntawm kev yuav hlau thiab yuav cov khoom siv ua haujlwm.
Kev Tsim Nyog thiab Kev Sib Koom Tes
Koj tsis yog xaj N08028 qhov chaw los ntawm phau ntawv teev npe. Nws yog kev sib koom tes. Thawj qhov kev sab laj tsim qauv yog qhov tseem ceeb. Lub vojvoog me ntsis tuaj yeem nce ntawm no kom tsis txhob muaj qhov nyias nyias uas nyuaj rau noj hauv casting? Cov yam ntxwv sab hauv no puas tuaj yeem ua tiav los ntawm machining es tsis yog casting, kom zoo dua qhov kev ncaj ncees? Ib tug khub nrog kev koom ua ke plhaub pwm casting, peev casting, thiab CNC machining nyob rau hauv ib lub ru tsev, zoo li lub peev xwm qhia rau https://www.tsingtaocnc.com, muaj qhov zoo ntawm no. Pab pawg machining tuaj yeem tham nrog pab pawg foundry ua ntej tus qauv txawm tsim, optimizing cov txheej txheem saw.
Prototyping yog ntse. Ua ib feem lossis ib pawg me me ua ntej kom siv tau txoj hauv kev tsim khoom, cov cuab yeej siv, thiab cov khoom kawg tuaj yeem txuag tau tus nqi loj thiab lub sijhawm ntawm kev ua haujlwm tag nrho. Nws yog kev nqis peev hauv de-risking qhov project.
Thaum kawg, kev ua hauj lwm nrog cov alloys tshwj xeeb zoo li qhov no yog hais txog kev sib koom tes thiab kev paub sib koom. Tus neeg muag khoom yuav tsum nkag siab txog qhov kawg ntawm daim ntawv thov kev ntxhov siab los qhia txog cov ntsiab lus zoo li qhov chaw tiav (lub polished tiav tuaj yeem txhim kho corrosion kuj) lossis kev kho mob passivation. Tus neeg yuav khoom yuav tsum nkag siab txog cov khoom siv txwv los teeb tsa qhov kev cia siab tiag tiag ntawm tus nqi thiab lub sijhawm ua haujlwm. Nws tsis yog kev lag luam khoom lag luam. Thaum nws ua tiav lawm, koj tau txais ib feem uas daws qhov teeb meem loj engineering. Thaum nws ua tsis yog lawm, koj tau txais ib zaj lus qhia kim heev.
