Thaum cov neeg feem coob hnov 'cov tuam txhab hlau casting,' lawv pom lub hauv paus hauv av-molten hlau, sparks, cua sov. Qhov ntawd yog ib feem ntawm nws, tseeb, tab sis nws zoo li piav qhia lub tsev noj mov los ntawm nws qhov cub. Zaj dab neeg tiag tiag yog nyob rau hauv kev txiav txim siab ntev ua ntej cov hlau tsoo pwm, thiab cov teeb meem koj daws tau tom qab nws txias. Ntau tus neeg siv khoom xav tias nws tsuas yog melting thiab pouring; Kev mob taub hau pib thaum lawv paub txog qhov ntev ntev, kev ua haujlwm tom qab casting, thiab kev xaiv cov khoom tsis yog kev xav-lawv yog qhov tseem ceeb ntawm txoj haujlwm.
Lub Foundation tsis yog Xuab zeb xwb
Siv lub plhaub molding. Nws tsis yog 'zoo dua xuab zeb casting.' Cov xuab zeb cob-coated cov ntaub ntawv uas lub plhaub tawv, uas ua rau koj ua tiav zoo dua thiab ua kom nruj dua li cov xuab zeb ntsuab. Tab sis qhov ua kom yuam kev yog nyob rau hauv tus qauv. Yog tias koj tus qauv tsis zoo tag nrho, txhua lub plhaub koj tsim muaj qhov tsis zoo. Peb kawm qhov no nyuaj heev xyoo dhau los ntawm kev khiav ntawm lub twj tso kua mis. Tus neeg siv khoom-muab qauv muaj me ntsis cov qauv ntawm lub kaum sab xis miscalculation. Nws saib tsis pom zoo ntawm CAD qauv, tej zaum ib nrab ntawm cov degree. Tab sis tom qab khiav ob peb puas lub plhaub, cov nyhuv ntawm ejection thiab nto tiav yog npau suav phem. Scraped tag nrho batch. Qhov ntawd yog qhov - cov txheej txheem casting pib nrog kev tshuaj xyuas tus tsim, tsis yog kev yuav khoom.
Kev nqis peev casting tau txais ntau dua intricate. Koj tab tom tsim lub plhaub ceramic txheej los ntawm txheej nyob ib ncig ntawm tus qauv siv quav ciab koj yaj tawm. Txoj kev ywj pheej geometry yog qhov tsis txaus ntseeg, tab sis qhov rooj vag thiab riser tsim yog ntau kos duab tshaj li kev tshawb fawb. Kuv nco qab ib qhov project rau lub turbine tivthaiv nyob rau hauv ib tug nickel-raws li alloy. Lub alloy nws tus kheej yog ib tug tsiaj nyaum ua hauj lwm nrog - siab melting point, tricky shrinkage. Peb tau dhau los ntawm peb qhov kev hloov pauv ntawm qhov kev teeb tsa riser tsuas yog txhawm rau tshem tawm cov kab noj hniav tsis tu ncua hauv qhov tseem ceeb. Txhua qhov iteration txhais tau tias cov cuab yeej siv quav ciab tshiab, lub plhaub tshiab tsim, cov dej tshiab. Tus nqi ntxiv, tab sis tsis muaj luv luv. Koj tsis tuaj yeem kho qhov teeb meem tseem ceeb ntawm kev txhim kho nrog kev ua haujlwm tom qab.
Qhov ntawd yog qhov uas 30 xyoo hauv kev lag luam no suav. Nws yog ib lub tsev qiv ntawv uas ua tsis tau tejyam pours thiab ua tau zoo sawv daws yuav. Koj tsim lub plab zoo li cas ib qho geometry hauv cam khwb cia hlau yuav coj zoo li qub hauv duplex stainless hlau. Cov thermal dynamics txawv kiag li. Ib lub tuam txhab zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) tsis nyob twj ywm ua haujlwm ntev los ntawm kev siv cov ntawv luam tawm thiab nchuav hlau. Nws yog hais txog qhov kev txiav txim siab ntau ntxiv los xav txog cov teeb meem ua ntej lawv tau ci rau hauv qhov kawg.
Cov ntaub ntawv yog ntau tshaj ib daim ntawv Spec
Cov neeg siv khoom muab koj cov khoom tshwj xeeb - 'ASTM A536, 65-45-12' lossis '316 Stainless. Qhov ntawd yog txoj kab pib. Cov kab tiav yog lub suab nrov nrog cov khoom siv kho tshuab xav tau. Qhov sib txawv ntawm ob lub ntsiab lus no yog qhov chaw nrhiav nyiaj tau txais lawv khaws cia. Piv txwv li, ductile hlau. Tau txais cov qauv nodular graphite tsis tu ncua tsis yog hais txog kev ntxiv magnesium. Nws yog hais txog kev tswj cov sulfur cov ntsiab lus nyob rau hauv koj lub hauv paus hlau, inoculation xyaum, tus nqi cua txias. Kev ncua me ntsis tom qab inoculation tuaj yeem ua rau carbide tsim, ua rau qhov nkig. Peb tau pom nws tig ib qho zoo kawg nkaus casting rau hauv seem vim tias lub sij hawm tawm los ntawm vib nas this.
Tom qab ntawd koj muaj cov alloys tshwj xeeb. Cobalt-based, nickel-based alloys zoo li Hastelloy lossis Stellite. Cov no feem ntau yog rau qhov chaw huab cua-siab kub, siab corrosion. Qhov kev sib tw yog ob zaug: ua ntej, melting thiab pouring lawv tsis qhia impurities los yog hlawv tawm cov ntsiab lus tseem ceeb alloying; thib ob, lawv feem ntau yog ntuj txiag teb tsaus rau tshuab tom qab. Lawv cov khoom zoo heev uas ua rau lawv muaj txiaj ntsig (ua haujlwm tawv, ua kom tsis muaj zog) ua rau lawv npau suav phem rau CNC khw. Tias yog vim li cas ib qho qauv kev sib xyaw ua ke, qhov twg tib lub tuam txhab tuav cov casting thiab cov CNC machining, ua rau muaj kev nkag siab ntau. Cov machinists nkag siab txog qhov casting qhov nyuaj qhov chaw, qhov seem seem ntawm kev ntxhov siab, vim tias lawv yog ib feem ntawm kev sib tham los ntawm theem tsim.
Kuv nco qab lub cev lub cev nyob rau hauv ib tug cobalt-chromium alloy. Lub casting tuaj zoo, ua tau raws li cov qauv X-ray thiab dye-pen. Tab sis thaum lub sij hawm machining, cov inserts tau hnav tawm ntawm tus nqi ceeb toom. Qhov teeb meem taug qab rov qab mus rau kev sib cais me me ntawm carbides thaum lub sij hawm solidification, tsim cov cheeb tsam ntawm cov hardness heev. Nws tsis yog qhov tsis xws luag ntawm spec, tab sis nws tua lub cuab yeej lub neej. Peb yuav tsum tau kho lub pouring kub thiab pwm ua ntej tshav kub rau tom ntej khiav los txhawb ib tug ntau uniform qauv. Qhov kev tawm tswv yim zoo li no nyob nruab nrab ntawm lub hauv pem teb foundry thiab lub khw muag khoom yog priceless. Nws yog qhov koj pom nrog ib tus neeg muab kev koom ua ke - lawv lub vev xaib, tsi.com, teev ob qho tib si casting thiab machining vim li cas. Nws tsis yog ib daim ntawv teev kev pabcuam xwb; nws yog kev ua haujlwm.
CNC tsis yog qhov kev xav tom qab; Nws yog Extension
Qhov no tej zaum yuav yog lub misconception loj tshaj. Cov neeg xav tias koj nrum ib feem 'ze txaus' thiab tom qab ntawd tshuab nws kom zoo. Qhov ntawd yog txoj hauv kev nrawm kom tshuab koj cov peev nyiaj. Yog tias koj tsis tsim rau kev tsim khoom (DFM) nrog ob txoj hauv kev hauv siab, koj yuav tsim cov kev sib tw machining uas kim lossis daws tsis tau. Koj yuav tsum xav txog fixturing cov ntsiab lus ntawm raw casting. Koj yuav tsum tau tso cov khoom tsim nyog - tsawg dhau, thiab koj yuav tsis ntxuav cov tawv nqaij; ntau dhau lawm, thiab koj nyob nraum nkim lub sij hawm machining kim thiab cov cuab yeej hnav, tshwj xeeb tshaj yog rau cov alloys nyuaj.
Peb muaj ib feem, ib tug loj mounting bracket nyob rau hauv steel. Cov qauv tsim muaj ib qho tseem ceeb bore uas xav tau ib tug zoo tiav thiab nruj kam rau ua. Cov txheej txheem pib yog los nrum nws nrog cov tub ntxhais muaj zog, tom qab ntawd laum thiab tho rau ntawm CNC zeb. Cov cuab yeej sib tham yog qhov txaus ntshai, thiab peb tau dhau los ntawm ntau qhov tho txawv. Qhov kev daws teeb meem yog pov lub bore me ntsis undersized tab sis nrog ib tug pre-cored qhov. Qhov no tau muab cov cuab yeej tho txawv qhov pib qhov sib txawv thiab tshem tawm feem ntau ntawm kev sib tham. Nws ntxiv ib kauj ruam rau tus qauv tsim, tab sis nws txuag cov sij hawm ntawm machining lub sij hawm thiab txhim kho zoo. Qhov ntawd yog kev sib koom ua ke. Cov hlau casting tuam txhab thiab lub khw muag khoom yuav tsum tau nyob rau hauv kev sib tham, zoo tagnrho nyob rau hauv ib lub ru tsev.
Saib ntawm QSY lub peev xwm-plhaub molding, peev casting, thiab tag nrho CNC machining-uas kev koom ua ke yog qhov implicit tus nqi proposition. Lawv tsis yog lub chaw tsim khoom lossis chaw ua haujlwm. Lawv nyob nraum tswj tag nrho cov nqi saw los ntawm cov qauv mus rau tiav, machined tivthaiv. Qhov no tswj cov variables. Tus kws kho tshuab tuaj yeem rov qab mus rau tus thawj tswj xyuas qhov chaw thiab hais tias, Cov khoom siv no tau ua haujlwm hnyav dua, thiab lawv tuaj yeem taug qab nws rov qab mus rau qhov kub thiab txias los yog pwm kub.
Tus nqi tiag tiag yog nyob rau hauv Rework (lossis tsis muaj)
Tus nqi ib kilogram ntawm casting yog ib tug txaus ntshai metric mus kav rau. Qhov pheej yig tshaj ncuav tuaj yeem dhau los ua qhov kim tshaj plaws thaum nws tsoo koj cov kab sib dhos. Ib qho porosity saum npoo uas dhau qhov kev kuaj pom yuav ua rau lub foob tsis ua haujlwm hauv lub tshuab hydraulic. Ib qho kev ntsuas tsis tau suav nrog tuaj yeem ua rau muaj kev puas tsuaj rau kev qaug zog. Tus nqi ces tsis yog qhov casting; nws yog daim ntawv lees paub, kev tsim khoom poob qis, kev puas tsuaj rau lub koob npe nrov.
Cov txheej txheem zoo hauv qhov chaw tsim khoom tsis yog cov ntaub ntawv. Lawv yog cov kev sim uas tsis yog kev puas tsuaj (NDT) cov txheej txheem-kua nkag, sib nqus particle, kuaj radiographic rau qhov tseem ceeb. Lawv yog thawj tsab ntawv tshuaj xyuas, cov txheej txheem txheeb cais ntawm qhov ntev. Rau qhov chaw siab ncaj ncees, koj yuav xav tau daim ntawv pov thawj cov ntaub ntawv xeem nrog cov khoom siv kho tshuab los ntawm daim coupon cam khwb cia nrog rau kev khiav haujlwm. Qhov no tag nrho cov nqi nyiaj, tab sis nws yog daim ntawv pov hwm koj tab tom yuav.
Nws nqis los rau kev tswj hwm kev pheej hmoo. Puas yog koj ua cov khoom siv kho kom zoo nkauj lossis cov khoom siv rau lub subsea valve? Cov txheej txheem (plhaub pwm vs. peev), qib khoom, qib tshuaj ntsuam-tag nrho cov nplai nrog qhov ua tsis tiav. Ib qho loj hlau casting tuam txhab yuav nug txog daim ntawv thov ua ntej. Lawv yuav thawb rov qab yog tias tus qauv tsim tsis raug lossis yuav raug txwv tsis pub kim rau tshuab. Qhov kev thawb rov qab, yug los ntawm kev paub, yog qhov koj them rau. Nws tsis yog kev pabcuam; nws yog kev sib koom tes kom tsis txhob muaj cov nqi zais.
Yog li, Dab tsi Yog Koj Tiag Nrhiav?
Yog tias koj tab tom nrhiav cov khoom cam khwb cia, koj tsis tshua tab tom nrhiav hlau casting tuam txhab. Koj tab tom nrhiav kev daws teeb meem rau qhov ze-net-shaped hlau qhov. Lub casting tsuas yog ib theem. Koj xav tau ib tus khub uas nkag siab tag nrho cov lus los ntawm koj tus qauv CAD mus rau ib feem bolted rau hauv koj cov khoom. Qhov ntawd txhais tau hais tias kev txawj ntse hauv cov txheej txheem casting nws tus kheej (xws li lub plhaub thiab cov peev txheej QSY tseem ceeb), kev paub txog cov ntaub ntawv sib sib zog nqus uas dhau mus dhau ntawm daim ntawv teev cov ntaub ntawv, thiab qhov tseem ceeb, muaj peev xwm ua haujlwm ua ke.
Lub vev xaib thiab 30-xyoo keeb kwm yog cov cim qhia. Lawv taw qhia kev mob siab rau, kev paub ntau ntxiv, thiab tej zaum, cov neeg siv khoom lag luam uas tau daig nrog lawv vim lawv xa kev ntseeg tau. Hauv kev lag luam no, koj tsis muaj sia nyob peb xyoos ntawm kev muag khoom muag. Koj muaj sia nyob los ntawm kev xa cov castings tsis tu ncua uas tsis poob rau hauv lub tshav pob, los ntawm kev daws teeb meem xws li yuav ua li cas tshuab lub cobalt alloy yam tsis tau rhuav tshem koj cov cuab yeej, thiab los ntawm kev ncaj ncees thaum tsim xav tau tweaking.
Lub sijhawm tom ntej koj ntsuas tus neeg xa khoom, tsis txhob nug cov lus tsocai xwb. Nug txog lawv cov txheej txheem solidification simulation. Nug seb lawv daws cov lus teb li cas ntawm lawv cov machining thiab foundry teams. Nug rau qhov kev tshawb fawb qhov twg qhov kev hloov pauv tsim tau txhim kho kev tsim khoom. Lawv cov lus teb yuav qhia koj ntau ntxiv txog lawv lub peev xwm raws li qhov tseeb hlau casting tuam txhab tshaj ib daim ntawv qhia glossy puas tau. Tus so tsuas yog molten hlau.
