Thaum cov neeg feem coob hnov 'steel casting', lawv pom ib tug ladle ntawm molten hlau thiab ntau lub txim. Qhov ntawd yog qhov ua yeeb yam, paub meej, tab sis nws yog 20% ntawm kev sib ntaus sib tua tiag tiag. Zaj dab neeg tiag tiag yog nyob rau hauv kev ntsiag to ua ntej lub ncuav - tus qauv, pwm, lub rooj vag tsim koj tau twv tag nrho txoj haujlwm. Tau qhov tsis ncaj ncees lawm, thiab koj tsis yog saib ntawm seem; koj tab tom saib qhov kev nkag siab tsis zoo ntawm cov hlau coj li cas thaum nws ua kua thiab npau taws. Nws tsis yog tsuas yog ua kom zoo nkauj xwb; nws yog engineering txoj kev solidification.
Pwm yog Daim Ntawv Qhia
Kuv twb poob suav ntawm tej yaam num uas tuaj nrog ib tug zoo meej 3D qauv ntawm qhov kawg thiab xoom xav txog yuav ua li cas mus rau ntawd. Thawj qhov teeb meem yog ib txwm pwm tsim. Rau hlau casting, tshwj xeeb tshaj yog nrog cov geometry nyuaj, koj tab tom xaiv koj cov riam phom thaum ntxov: xuab zeb casting rau loj, rougher pieces, los yog peev casting rau cov intricate, nyias-walled Cheebtsam. Txhua tus muaj nws cov lus ntawm cov ntawv sau, cores, thiab cov kab sib faib.
Peb ua haujlwm ntawm lub twj tso kua mis ib zaug, ib txoj haujlwm stainless hlau. Tus neeg siv khoom tsim muaj kab noj hniav sab hauv uas yog qhov tseem ceeb tsis tuaj yeem ncav cuag. Cov xuab zeb pwm yuav xav tau ib qho kev sib dhos tsis yooj yim. Peb thawb lawv mus rau peev casting - lub plhaub pwm txheej txheem. Nws txhais tau hais tias tus nqi nce siab dua nyob rau hauv cov qauv siv quav ciab, tab sis nws tshem tawm cov tub ntxhais tag nrho, muab qhov zoo dua qhov tiav thiab cov phab ntsa zoo sib xws. Qhov ntawd yog hom kev txiav txim hu uas cais tus neeg xa khoom los ntawm tus khub. Nws tsis yog hais txog qhov yooj yim rau peb; Nws yog hais txog dab tsi txheej txheem yields ib tug haumxeeb, txhim khu kev qha casting rau daim ntawv thov.
Qhov no yog qhov kev paub nrog ntau yam ntawm cov ntaub ntawv yog tsis sib tham. Lub shrinkage rau carbon steel yog txawv los ntawm high-alloy los yog stainless. Yog tias koj siv tib cov nyiaj pub dawb, koj ua tiav ua ntej koj pib. Kuv nco qab txog ib pawg ntawm cov caj npab hauv cov hlau uas tsis tshua muaj hlau uas peb tau txais cov qauv zoo meej, tab sis lub hauv paus (tsis yog peb, tus neeg ua haujlwm hauv lub sijhawm) siv riser thiab rooj vag tsim los rau cov kua dej ntau dua. Qhov tshwm sim yog ib qho zoo nkauj ntawm qhov chaw, txhua tus nrog lub shrinkage kab noj hniav txoj cai ntawm qhov tseem ceeb ntawm kev ntxhov siab. Ib zaj lus qhia kim heev hauv kev xav tias lub hauv paus paub koj cov khoom.
Khoom siv tsis yog ib daim ntawv tshwj xeeb xwb
Tham txog hlau casting yam tsis muaj kev dhia mus rau hauv qib zoo li hais txog kev ua noj tsis hais cov khoom xyaw. 30 xyoo nyob rau hauv, koj pom cycles. Txhua tus xav tau 304 lossis 316 stainless rau kev tiv thaiv corrosion, tab sis feem ntau saib xyuas tias nws yog tus dais los nrum piv rau carbon steels. Nws yog gummy, pours sluggish, thiab nws yuav kub tearing yog tias koj cov nqi cua txias tawm.
Qhov nthuav ntau ua hauj lwm, frankly, yog nrog tshwj xeeb alloys. Nickel-raws li alloys rau high-temperature kev pab cuam, los yog cobalt-raws li sawv daws yuav hnav tsis kam. Peb tau ua cov khoom rau QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. (QSY) hauv lub tebchaws no. Lawv tsom mus ntev rau cov ntaub ntawv zoo li no txhais tau hais tias lawv tau tsim lub tsev qiv ntawv ntawm kev paub txog qhov kub thiab txias ua ntej, nchuav nrawm, thiab kev kho cua sov tom qab uas koj tsuas tuaj yeem ua tsis tau google. Piv txwv li, nrog cov nickel-based alloy casting rau lub turbine tivthaiv, qhov sib txawv ntawm lub voj voog kev ntxhov siab thiab kev kho cua sov tag nrho yog qhov sib txawv ntawm ib feem uas kav ib lub caij thiab ib qho uas kav ib xyoo caum. Qhov ntawd yog tus nqi zais hauv tus khub tus txheej txheem.
Nws yog ntxias kom xav tias muaj zog alloy = qhov zoo dua. Tsis muaj tseeb. Peb muaj ib tug neeg hais rau ib tug high-strength steel rau ib tug mounting bracket. Nws cam khwb cia zoo, machined txaus ntshai - cov cuab yeej hnav tau los ntawm lub ru tsev. Peb yuav tsum rov qab mus, sib cav rau me ntsis hardenable tab sis deb ntau machinable qib, factoring nyob rau hauv tag nrho cov nqi ntawm casting THIAB machining. Qhov kawg ua tau zoo ib yam hauv daim teb. Daim ntawv spec tsis qhia tag nrho zaj dab neeg; tag nrho cov saw hlau ua.
Kev Them Nyiaj: Casting rau CNC
Qhov no yog lub sijhawm ua-lossis-tuag uas muaj ntau lub chaw tsim khoom ntshiab lossis lub khw muag khoom dawb huv fumble. Lub casting tsis yog ib feem tiav. Yuav ua li cas nws tau nthuav tawm rau machining yog txhua yam. Koj xav tau cov ntaub ntawv. Koj xav tau cov khoom siv phab ntsa zoo ib yam. Koj yuav tsum paub qhov twg cov ntsiab lus yuav cuam tshuam los ntawm cov txheej txheem txias.
Kev ua haujlwm sib xyaw ua ke, zoo li qhov koj pom ntawm lub tuam txhab tuav ob qho tib si casting thiab machining hauv tsev, muaj txiaj ntsig zoo. Ntawm QSY, piv txwv li, pab neeg ua haujlwm CNC machining tsis tau txais ib lub thawv tsis meej los ntawm tus neeg muag khoom. Lawv zoo li nyob rau hauv kev tshuaj xyuas tsim rau lub casting. Lawv paub qhov twg txoj kab sib faib yog, lawv yuav tau hais kom ntxiv ib qho me me machining ncoo rau ntawm qhov chaw tsis tseem ceeb los xyuas kom muaj kev ruaj ntseg thawj op fixture. Cov lus teb rov qab no yog kub. Nws tiv thaiv cov hauj lwm hmo ntuj uas koj siv sij hawm ntau qhia thiab shimming weird casting tshaj koj ua tau txiav hlau.
Kuv nco qab lub gearbox casing qhov twg qhov chaw li-cam khwb cia yog qhov sib txawv heev rau peb cov qauv fixture. Pab pawg machining flagged nws, thiab cov foundry pab neeg kho cov txheej txheem molding los lav ib tug tighter kam rau ua band ntawm tej mounting ntsej muag. Nws ntxiv ib hnub rau theem casting tab sis txuag tau peb hnub hauv lub sijhawm teeb tsa ntawm tsib lub chaw ua haujlwm sib cais. Qhov ntawd yog hom kev ua tau zoo uas tsis tshwm sim hauv ib-kilo casting quote tab sis kiag li tshwm sim nyob rau hauv tag nrho cov nqi project thiab ncua sij hawm.
Failure yog Data Point
Tsis muaj leej twg nyiam tham txog cov uas mus yuam kev, tab sis qhov ntawd yog qhov kev kawm tiag tiag faus. Ib qho piv txwv zoo meej yog kev khiav ntawm me me, sib sib zog nqus brackets hauv cov hlau hlau - cov teeb meem zoo sib xws siv rau cov hlau. Peb siv cov tshiab, supposedly superior zircon xuab zeb rau cov cores. Cov castings tuaj nrog ib tug zoo nkauj tiav, tab sis peb muaj ze li ntawm 40% tus nqi ntawm cracking thaum shakeout. Zoo nkauj, kim paperweights.
Tom qab rhuav peb cov plaub hau, peb pom tau tias cov xuab zeb tshiab muaj cov thermal conductivity ntau dua. Nws tau nqus cua sov tawm ntawm qhov casting sai heev, tsim kom muaj kev ntxhov siab loj heev. Rau ib qho tuab, chunky feem nws yuav ua tau zoo. Rau cov nyias nyias, webbed brackets, nws ua rau tuag taus. Peb rov qab mus rau cov laus, tsawg dua "ua ntej" silica xuab zeb rau cov haujlwm tshwj xeeb, thiab qhov teeb meem ploj mus. Zaj lus qhia? Tsis muaj kev coj ua "zoo tshaj" thoob ntiaj teb. Txhua qhov sib txawv - cov khoom, geometry, qhov hnyav - hloov qhov sib npaug. Qee zaum txoj kev qub yog txoj hauv kev rau qhov tshwj xeeb ntawd.
Qhov no yog vim li cas kuv tsis ntseeg ntawm cov khw uas thov 99% tus nqi tawm los ntawm thawj-khiav prototypes rau complex castings. Txawm hais tias lawv tsis thawb lub hnab ntawv ntawm kev tsim qauv nyuaj, lossis lawv tsis yog qhov tseeb tiag. Ib tus neeg koom tes nrog lub luag haujlwm yuav qhia koj txog cov kev pheej hmoo, taw qhia cov kev ua tsis tau zoo ntawm koj cov duab kos, thiab qee zaum txawm pom zoo ib qho qauv hauv cov khoom pheej yig dua, yooj yim-rau-cam khwb cia tsuas yog los ua pov thawj cov pwm tsim ua ntej cog lus rau cov hlau alloy kim.
Kev xa tawm tiag: Kev ntseeg tau
Thaum kawg ntawm hnub, hlau casting tsis yog hais txog kev tsim khoom hlau. Nws yog hais txog kev tsim cov khoom siv txhim khu kev qha, kev kwv yees uas ua haujlwm hauv kev sib dhos, hauv qab thauj khoom, feem ntau hauv cov xwm txheej hnyav. Qhov kev cia siab ntawd yog tsim los ntawm ib txhiab me me, raug txiav txim siab los ntawm thawj qhov kev tsocai mus rau qhov kev tshuaj ntsuam zaum kawg.
Nws los ntawm kev paub txog thaum twg thiaj li pom zoo rau cov hlau sib txawv. Nws yog tsim los ntawm kev tsim lub rooj vag system uas txo qis kev kub ntxhov thiab slag suav nrog. Nws los ntawm pab pawg machining uas nkag siab txog cov tawv nqaij casting thiab residual stress. Thaum koj ua hauj lwm nrog ib tug khub zoo li QSY, uas nws cov hauj lwm ncua sij hawm los ntawm cov qauv khw mus txog rau tag CNC machining, koj tab tom yuav rau hauv qhov kev txiav txim siab tag nrho. Lawv lub vev xaib, https://www.tsingtaocnc.com, qhia txog lawv lub peev xwm, tab sis lub peev xwm tiag tiag yog lub koom haum nco tau tsim dua 30 xyoo - lub cim xeeb ntawm qhov ua haujlwm, thiab tseem ceeb tshaj, dab tsi ua tsis tiav thiab yog vim li cas.
Qhov zoo tshaj plaws castings tsis zoo li lawv tau "cam khwb cia." Lawv tsuas zoo li ib feem, huv si, suab, thiab npaj ua haujlwm. Tau txais muaj dab tsi tab sis yooj yim. Nws yog ib qho nyuaj, rov ua dua, sib sib zog nqus lub cev txheej txheem ntawm kev tswj cov cua sov, chemistry, thiab geometry. Thiab qhov ntawd yog qhov ua rau nws nthuav. Txhua daim duab tshiab yog ib qho kev sib tw tshiab, thiab kev daws teeb meem tsis yog nyob rau hauv lub yaj; nws yog nyob rau hauv kev npaj ntev ua ntej lub cub tawg puas.
