Thaum cov neeg feem coob hnov 'hlau casting', lawv pom ib tug txiv leej tub nyob rau hauv daim tawv nqaij apron pouring glowing kua rau hauv cov xuab zeb pwm. Qhov ntawd tsis yog lawm, tab sis nws zoo li piav qhia lub tsheb ua lub thawv nrog lub log. Zaj dab neeg tiag tiag, ib qho uas khaws cov khw zoo li peb lub lag luam tau ntau xyoo, tshwm sim ntev ua ntej lub ncuav thiab ntev tom qab nws txias. Nws yog nyob rau hauv cov khoom xaiv, pwm engineering, lub rooj vag tsim, thiab inevitable, tej zaum kim, teeb meem. Ntau tus neeg tuaj rau peb xav tias nws tsuas yog hais txog melting thiab shaping hlau. Qhov tseeb yog, qhov casting feem ntau yog qhov yooj yim; nws yog txhua yam uas nyob ib puag ncig nws uas txhais tau tias muaj kev vam meej lossis ib pawg ntawm cov khoom kim heev.
Pwm yog Cov Lus
Wb tham molds. Qhov kev xaiv ntawm plhaub molding thiab peev casting tsis yog ib qho kev nyiam xwb; Nws yog qhov kev txiav txim siab tseem ceeb uas txiav txim siab ua siab ntev, nto tiav, thiab geometry. Peb ua haujlwm ntawm ob peb qhov chaw. Plhaub molding, siv resin-coated xuab zeb, yog qhov zoo heev rau cov ntim ntau dua ntawm cov khoom xws li lub cev lub cev lossis cov iav khoob. Koj tau txais kev ua tiav zoo thiab nws tseem pheej yig. Tab sis qhov seem stability? Nws muaj nws cov kev txwv, tshwj xeeb tshaj yog nyob rau hauv complex internal passages. Koj tab tom cuam tshuam nrog cov xuab zeb, tom qab tag nrho, thiab nws tuaj yeem hloov lossis erode.
Kev nqis peev casting, cov txheej txheem poob-wax, yog cov tsiaj nyaum sib txawv. Peb siv nws rau cov khoom sib txawv - impellers, turbine hniav, cov khoom siv phais. Lub plhaub ceramic khaws cov ntsiab lus zoo li tsis muaj dab tsi ntxiv. Tab sis tus txheej txheem yog unforgiving. Ib qho me me ntawm cov qauv siv quav ciab replicates zoo kawg nkaus hauv qhov kawg hlau. Kuv nco qab ib pawg ntawm stainless hlau brackets uas peb muaj me ntsis mismatch nyob rau hauv lub wax los ua ke. Nws tsis pom ntawm lub qhov muag ntawm cov quav ciab, tab sis nws tsim cov kab plaub hau ntawm txhua qhov casting ntawm txoj kab sib cais. Tag nrho kev khiav yuav tsum tau ua kom tiav tes, uas ua rau tus nqi tsim nyog. Zaj lus qhia? Hauv kev nqis peev casting, koj thawj qhov zoo tshaj plaws yog cov qauv siv quav ciab, tsis yog hlau.
Qhov no yog qhov chaw ua haujlwm ntev ntev ntawm kev ua haujlwm them nyiaj. Ntawm Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), tau ua qhov no rau ntau tshaj 30 xyoo, peb tau tsim cov tsev qiv ntawv ntawm cov txheej txheem tsis sib txawv rau cov geometry sib txawv. Nws tsis yog khawv koob; nws yog ib tug log ntawm yav tas los yuam kev thiab kho. Rau ib tug tshiab impeller tsim nyob rau hauv a Nickel-raws li alloy, peb tsis pib ntawm xoom. Peb paub yuav ua li cas cov alloy shrinks, yuav ua li cas lub ceramic plhaub reacts rau nws thermal shock, thiab kwv yees qhov twg yuav tsum tau tso lub vents kom tsis txhob muaj gas entrapment. Nws yog educated guessing, tab sis kev kawm yog kim.
Khoom siv tsis yog ib daim ntawv tshwj xeeb xwb
Cov neeg siv khoom xa tuaj rau peb cov khoom tshwj xeeb: ASTM A216 WCB lossis 316 Stainless. Qhov ntawd yog txoj kab pib. Cam khwb cia hlau, carbon steel, stainless hlau-lawv txhua tus coj txawv txawv txawv hauv lub xeev molten. Fluidity, shrinkage, kub tearing nyiam. Lub siab-carbon steel pours zoo nkauj tab sis shrinks zoo li vwm, thov kom ua tib zoo xam risers los pub lub solidification. Tau txais qhov loj me me lossis qhov tso kawm tsis raug, thiab koj tau txais cov porosity shrinkage hauv qhov casting. Nws yuav dhau qhov pom kev, tab sis nws yuav ua tsis tau raws li qhov siab lossis qaug zog.
Cov kev sib tw tiag tiag tuaj nrog cov tshwj xeeb, xws li cobalt-based alloys. Lawv feem ntau rau qhov chaw huab cua - kub kub, corrosion, hnav. Lawv lub qhov rais casting yog nqaim. Kub dhau, thiab koj hlawv tawm cov ntsiab lus tseem ceeb lossis ua rau cov qoob loo loj hlob ntau dhau. txias dhau, thiab cov hlau yuav tsis sau cov ntu nyias. Peb ib zaug muaj ib qhov project rau lub tes tsho hnav-tiv taus hauv Co-Cr alloy. Thawj ob peb lub ncuav tau ua rau txias kaw thiab khiav tsis zoo. Cov hlau tsuas yog khov sai heev. Txoj kev daws tsis yog tsuas yog cranking lub cub tawg. Peb yuav tsum rov tsim kho lub rooj vag kom tau cov hlau mus rau hauv pwm kab noj hniav sai dua thiab muaj kev kub ntxhov ntau dua, thaum tseem ua ntej cua sov cov plhaub ceramic rau qhov kub siab dua. Nws coj peb iterations. Daim ntawv spec tsis qhia koj tias.
Cov khoom siv intimacy yog vim li cas lub khw uas muaj ob qho tib si hlau casting thiab CNC machining nyob rau hauv ib lub ru tsev muaj qhov zoo dua. Peb paub yuav ua li cas ib tug casting yuav tshuab. Puas yog cobalt alloy? Nws nyuaj heev rau tshuab tom qab casting. Paub tias, peb yuav kho cov txheej txheem kev kho cua sov tom qab-casting kom me ntsis soften nws rau machinability, ces ua ib tug zaum kawg hardening kev kho mob. Yog hais tias cov casting thiab machining teams yog cais cov koom haum, qhov kev tawm tswv yim voj yuav qeeb thiab kim.
Kev Them Nyiaj: Los ntawm Casting rau CNC
Qhov no yog ib qho tseem ceeb, feem ntau overlooked, interface. Lub casting tsis yog ib feem tiav; nws yog ib qho ze-net-zoo li dawb paug. Yuav ua li cas nws tau nthuav tawm rau CNC machinist ua rau txhua qhov sib txawv. Peb tau pom castings los ntawm lwm qhov chaw tsim khoom uas tsis muaj cov yam ntxwv zoo ib yam, lossis muaj qhov loj me uas tau faus rau hauv thaj chaw uas tsis tuaj yeem ntxuav tau. Nws yog npau suav phem rau fixturing.
Hauv peb cov txheej txheem, kev tsim qauv casting raug tshuaj xyuas nrog pab pawg machining los ntawm hnub ib. Peb tuaj yeem ntxiv cov ntaub qhwv me me rau ntawm qhov chaw tsis tseem ceeb, lossis xyuas kom lub ntsej muag tshwj xeeb yog cam khwb cia kom txaus los ua tus thawj datum. Rau lub vaj tsev nyuaj uas peb tau ua rau xyoo tas los, peb tau nrum hauv peb lub me me, tsa tus thawj coj ntawm lub ntsej muag flange tshwj xeeb rau CNC vise kom tuav. Lawv tau raug machined tawm hauv kev ua haujlwm kawg. Nws ntxiv ib qho me me ntawm qhov nyuaj rau cov pwm, tab sis txuag cov sij hawm ntawm fixturing engineering thiab lav qhov tseeb ntawm qhov chaw nres nkoj thiab lub ntsej muag foob.
Nws yog qhov kev koom ua ke no uas lub tuam txhab zoo li QSY, nrog rau nws ua ke casting thiab machining muaj peev xwm, leverages. Koj tuaj yeem tshawb xyuas seb qhov kev sib koom ua ke no ua li cas hauv cov haujlwm tiag tiag ntawm lawv qhov chaw ntawm tsi.com. Lub ntsiab lus yog, lub siab xav hloov los ntawm kev ua cov casting mus ua ib tug machinable casting uas yuav dhau los ua ib feem kawg. Nws tshem tawm qhov kev ua si liam ntawm qhov chaw tsim khoom thiab lub khw muag khoom thaum lub qhov loj me tawm.
Failure yog Data Point
Tsis muaj leej twg nyiam tham txog cov khoom seem, tab sis nws yog tus kws qhia zoo tshaj plaws. Cov ntaub ntawv zoo meej hauv casting feem ntau txhais tau tias koj tsis thawb cov ciam teb. Peb twb muaj peb share. Ib tug uas sticks nrog kuv yog ib tug loj ductile hlau iav dawb paug. Nws dhau tag nrho cov kev tshuaj xyuas thawj zaug tab sis tawg puas tsuaj thaum lub sijhawm ua haujlwm tsis zoo. Qhov kev soj ntsuam tsis ua hauj lwm taw qhia rau degenerate graphite qauv hauv cov tub ntxhais - ib qho mob hu ua inverse chill. Cov hlau tau txias heev heev nyob rau hauv nruab nrab ntawm cov tuab seem. Qhov kho? Peb hloov cov inoculant hom thiab tus nqi, thiab muab tso rau sab nraud chills ntawm lub pwm kom ua tau kom muaj kev taw qhia solidification los ntawm hauv qab mus txog, paradoxically slowing lub txias nyob rau hauv lub tub ntxhais. Nws ua haujlwm. Tam sim no, rau tuab-section ductile hlau, uas yog peb tus qauv raws tu qauv.
Cov kev ua tsis tiav no ua rau pab pawg neeg paub txog lub hauv paus. Nws tsis yog ib txwm nyob hauv phau ntawv. Nws yog tus tsim qauv qub qub saib ntawm tus qauv tsim thiab hais tias, Peb xav tau lub vojvoog loj dua ntawm no, lossis nws yuav tsim kua muag, raws li qhov zoo sib xws uas ua tsis tiav tsib xyoos dhau los. Qhov kev paub zoo, kev paub yog dab tsi lub tuam txhab 30 xyoo zoo li Qiangsenyuan Technology yog muag tiag tiag, ntau npaum li cov hlau nws tus kheej.
Lwm qhov pitfall yog xav tias tus tsim uas ua haujlwm hauv steel yuav ua haujlwm hauv stainless. Cov kev cai pub mis yog txawv. Stainless hlau muaj qis thermal conductivity, yog li lawv nyob kub ntev nyob rau hauv cov risers, uas suab zoo, tab sis nws kuj txhais tau hais tias lub solidification pem hauv ntej txav txawv. Peb yuav tsum tau kawm siv me me, tab sis ntau ntau, risers ntawm cov hauj lwm tsis muaj zog kom tsis txhob tsim cov chaw kub kub uas ua rau lub ntsws.
Kev xa tawm tiag tiag: Predictability
Thaum kawg ntawm lub hnub, dab tsi loj buyer ntawm cam khwb cia Cheebtsam xav tsis yog ib feem. Nws yog kwv yees. Cov khoom zoo sib xws, kev xa khoom zoo ib yam, kev ua haujlwm zoo ib yam. Qhov ntawd yog qhov dawb huv grail. Nws ua tiav tsis yog los ntawm ib qho txheej txheem ci ntsa iab, tab sis los ntawm kev tswj ntau pua qhov sib txawv me me: cov dej noo ntawm cov xuab zeb, qhov kub ntawm cov hlau thaum nws nchuav (tsis yog nyob rau hauv qhov cub, tab sis nyob rau hauv lub ladle), pre-heat rau pwm, post-casting txias npaum li cas.
Qhov kev tswj hwm no cia peb muab kev lees paub tseeb. Thaum peb ua qhov project rau plhaub molding ntawm ib tug series ntawm hydraulic manifolds, peb paub hais tias peb muaj peev xwm tuav lub siab-bearing passages mus rau ib tug tej yam kev ncaj ncees theem vim hais tias peb twb tswj cov txheej txheem los ntawm cov xuab zeb sib tov rau pem hauv ntej. Qhov kev ntseeg ntawd yog qhov tseeb ntawm kev paub. Koj tuaj yeem pom cov haujlwm ntawm qhov haujlwm no, los ntawm kev xaiv cov khoom mus rau qhov tiav, tau piav qhia hauv lub tuam txhab profile rau Qingdao Qiangsenyuan Technology Co., Ltd., uas qhia meej txog lawv txoj kev tsom mus rau qhov tseeb casting thiab machining txoj kev.
Yog li, hlau casting? Nws yog ib tug saw ntawm ib txhiab txuas. Lub ncuav tsuas yog qhov pom tshaj plaws. Lub zog ntawm cov saw hlau yog los ntawm kev nkag siab thiab tswj tag nrho lwm tus - cov khoom siv science, pwm engineering, thermal dynamics, thiab kev hloov pauv seamless rau kev ua tiav. Qhov ntawd yog qhov uas cov khoom siv tes ua nyob, nyob deb ntawm qhov ci ntsa iab ntawm cov hlau molten.
