Thaum koj hnov 'cov hlau nplaum hlau casting', feem ntau lub siab dhia ncaj nraim rau cov hlau nws tus kheej-cov nodular graphite, lub zog tensile specs. Qhov ntawd yog cov lus hais txog khoom. Zaj dab neeg tiag tiag, ib qho uas txiav txim siab yog tias ib feem kav ntev li nees nkaum xyoo lossis ua tsis tiav hauv ob, tshwm sim hauv thaj chaw grey: lub rooj vag qhov system tsim, lub sijhawm inoculation, txoj kev koj lis pwm tom qab shakeout. Nws tsis yog tsuas yog ua ib qho casting; nws yog hais txog engineering ib feem uas coj kwv yees nyob rau hauv kev ntxhov siab. Ntau tus neeg yuav khoom, txawm tias engineers, tau kho rau ntawm daim ntawv qhia txog chemistry thiab nco txhua yam uas tshwm sim ntawm lub qhov cub thiab lub tshuab ua tiav.
Lub Foundry Floor yog Chemistry Lab, Tab sis tsis nyob hauv txoj kev koj xav
Yog lawm, peb khiav spectrometers. Lub ladle tsom xam rau ib yam hlau hlau qib zoo li 65-45-12 yog qhov ncaj. Ntaus koj ntau yam rau carbon, silicon, magnesium. Cov ntaub ntawv huv si. Qhov tseeb chemistry, txawm li cas los, yog reactive thiab ntxhov. Nws yog qhov ploj ntawm magnesium post-inoculation. Koj muaj lub qhov rais-qee zaus tsuas yog feeb-kom tau txais cov hlau kho rau hauv pwm ua ntej cov nyhuv nodularizing deteriorates. Kuv tau pom nchuav qhov twg txhua yam zoo meej rau ntawm daim ntawv, tab sis kev ncua ntawm kab ua rau qhov kub thiab txias me ntsis thiab sluggish sau. Qhov tshwm sim? Marginal graphite morphology nyob rau hauv tuab seem. Ib feem tuaj yeem dhau qhov kev tshuaj ntsuam xyuas, tab sis nws lub neej qaug zog yog cuam tshuam. Qhov ntawd yog qhov kev paub tsis tau hais hauv kev ua haujlwm ductile hlau casting qhov chaw.
Qhov no yog qhov chaw ua haujlwm ntau xyoo, zoo li ntawm Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), txhais ua tus nqi. Nrog ntau tshaj 30 xyoo nyob rau hauv casting thiab machining, lawv tau zoo li nchuav, thiab pom, txhua yam. Lub koom haum nco yog qhov tseem ceeb. Nws txhais tau tias lawv cov txheej txheem tswj tsis yog ua raws li phau ntawv; lawv tau paub txog qhov zoo ntawm cov kwj dej, lub suab ntawm cov hlau ntaus lub copes, hloov maj mam cues uas ib tug tag nrho automated system yuav nco. Rau hlau hlau, cov kev ntsuam xyuas kev hnov lus no yog qhov thaub qab rau qhov ntsuas, qhov kawg, tib neeg lub rooj vag zoo.
Thiab nws tsis yog hais txog hlau ncuav. Wb tham molds. Rau lub plhaub molding, uas QSY teev raws li ib qho tshwj xeeb, cov xuab zeb resin chemistry thiab curing yog qhov muag heev. Ib qho kev sib txawv me ntsis hauv qhov piv txwv catalyst tuaj yeem ua rau lub plhaub dhau los yog mos heev. Lub plhaub nkig tuaj yeem tawg thaum tuav, ua rau fins thiab veining ntawm lub casting. Lub plhaub mos tuaj yeem cuam tshuam nyob rau hauv lub tshav kub thiab qhov hnyav ntawm cov hlau, uas ua rau kom muaj qhov dav dav. Koj tsuas yog kawm cov kev sib raug zoo no los ntawm kev khiav ntau txhiab tus pwm, taug qab qhov sib txawv, thiab sib txuas lawv mus rau qhov kawg ntawm qhov tsis xws luag. Nws yog ib tug nruam, gritty tawm tswv yim voj.
Qhov twg Casting Ends thiab Machining pib (lossis, Seam uas yuav tsum tsis muaj)
Qhov no yog ib tug tsiaj peeve loj. Ib lub hauv paus uas ua haujlwm hauv lub tshuab nqus tsev los ntawm machining yog lub luag haujlwm. Kev tsim cov qauv casting yuav tsum cia siab tias CNC program xav tau. Qhov twg yuav tsim thawj datum? Puas muaj qhov huv, zoo li-cam khwb cia rau thawj clamping? Puas yog qhov chaw sib cais qhov chaw tsim lub teeb uas cuam tshuam nrog kev sib tw? Kuv tau txais castings los ntawm lwm yam dlej foundries uas tau xyaum unmachinable tsis tsim ib tug Frankenstein fixture, tag nrho vim hais tias tus foundry engineer yeej tsis tham nrog ib tug machinist.
Kev ua haujlwm sib xyaw ua ke zoo li QSY's, muab ob qho tib si casting thiab CNC machining nyob rau hauv ib lub ru tsev, inherently daws qhov no. Lawv cov qauv khw yuav muaj kev sib tham tas li nrog lawv cov machining center programmers. Thaum lawv tsim ib tug khiav thiab riser system rau ib hlau casting, lawv tseem tab tom xav txog qhov yuav tsum tau muab tso rau hauv qhov chaw kom nws tuaj yeem raug tshem tawm ntawm lub zeb, tawm hauv qhov chaw ua haujlwm. Lawv tuaj yeem npaj rau machining cov nyiaj pub dawb uas muaj tseeb, tsis yog cov ntawv nyeem xwb. Qhov kev sib koom ua ke no yog qhov uas koj txuag nyiaj tiag tiag thiab sijhawm, zam qhov tsis muaj qhov kawg rov qab los ntawm email ntawm cov neeg muag khoom sib cais rau ib leeg rau ib feem uas tawm ntawm spec.
Ib qho piv txwv: lub hydraulic valve lub cev peb tau ua haujlwm. Internal passages yog complex, yuav tsum tau meej plhaub molding mus ntes cov geometry. Lub ntsej muag tseem ceeb xav tau Ra 0.8 tiav. Lub foundry uas tsuas yog nrum nws tshuav cov khoom hnyav ntawm lub ntsej muag, uas thaum lub sij hawm machining ua rau hnyav thiab tsis sib xws ntawm cov cuab yeej siv vim lub hardened nto txheej los ntawm ceev txias. Txawm li cas los xij, tus kws tsim khoom tsim kev sib koom ua ke, tuaj yeem kho cov txheej txheem txias (tej zaum siv lub tes tsho insulating ntawm cov risers) kom ntseeg tau tias muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov tob, thiab tom qab ntawd tshuab nws nrog cov cuab yeej siv txoj hauv kev thiab ntxig qib. Qhov tshwm sim yog qhov ua tiav zoo dua, cov cuab yeej siv tau ntev dua, thiab ib feem txhim khu kev qha. Qhov no tsis yog khawv koob; nws yog kev sib txuas lus ci rau hauv cov txheej txheem.
Cov Lus Nug Alloy: Thaum Cov Hlau Hlau Tsis Txaus
Ductile hlau yog ib tug workhorse, tab sis cov spec ntawv tsis ib txwm qhia tag nrho cov dab neeg. Kev puas tsuaj? 500 Brinell hardened ductile hlau yuav ua hauj lwm. Tab sis ntxiv cuam tshuam? Qhov ntawd yog qhov sib txawv. Qee lub sij hawm koj yuav tsum tau nqis los rau hauv cov alloys tshwj xeeb QSY hais txog-nickel-based lossis cobalt-based alloys rau hnyav hnav thiab corrosion. Lub peev xwm nrhiav tau ntawm no yog qhia. Melting thiab pouring cov alloys yuav tsum tau sib txawv rauv hauv ob sab phlu, nruj atmospheric tswj, thiab feem ntau sib txawv kiag li cov txheej txheem pouring. Lub chaw tsim khoom zoo nrog cov ntaub ntawv no feem ntau muaj kev qhuab qhia nruj uas los ntshav rov qab rau hauv lawv cov qauv hlau hlau ua haujlwm. Lawv cov txheej txheem tswj kev kis kab mob yuav nruj dua, lawv cov kev saib xyuas thermal zoo dua.
Kuv nco qab lub twj tso kua mis impeller rau ib puag ncig saline. Thawj qhov kev xav yog austenitic ductile hlau (Ni-Resist). Nws cam khwb cia zoo, tab sis hauv kev sim teb, kev sib xyaw ntawm chloride-induced corrosion thiab cavitation yaig tau noj nws sai dua li qhov xav tau. Kev daws, tsim nrog tus foundry metallurgist, yog hloov mus rau duplex stainless hlau casting. Qhov kev sib tw tau dhau los ua kev noj cov hlau uas sib txawv thiab muaj ntau dua rau kub kua muag. Peb yuav tsum rov tsim kho tag nrho cov txheej txheem pub mis thiab txias. Nws yog qhov ua tsis tiav uas ua rau muaj kev daws teeb meem zoo dua, tab sis nws yuav tsum muaj lub chaw tsim khoom txaus siab thiab muaj peev xwm pivot, khiav cov kev sim siab, thiab xav txog tshaj li daim npav tus qauv. Tsis yog txhua lub khw muaj qhov bandwidth.
Qhov no yog qhov nuance ntawm kev xaiv cov khoom. Ib qho zoo chaw tsim khoom tus khub tsis tsuas yog txais koj cov khoom spec; lawv nug nws. Lawv tuaj yeem nug txog qhov chaw pabcuam tiag tiag, lub sijhawm thauj khoom, lub peev xwm rau thermal shock. Raws li qhov ntawd, lawv tuaj yeem hais qhia qhov hloov pauv hloov pauv hloov pauv-los ntawm ferritic mus rau pearlitic matrix hauv cov hlau hlau, piv txwv li, kom hnav zoo dua ntawm tus nqi ntawm me ntsis ductility. Qhov kev sib tham ntawd tsim nyog nws qhov hnyav hauv kub.
Dab nyob hauv lub tshuab: Dimensional Stability thiab Stress
Machinists ntxub kev xav tsis thoob. Qhov kev xav tsis zoo tshaj plaws yog qhov casting uas txav thaum lub sij hawm machining los yog, phem dua, tom qab nws raug xa mus. Residual stress nyob rau hauv a hlau casting yog dab dab. Nws los ntawm qhov tsis sib xws ntawm qhov txias txias, los ntawm kev tawm tsam hnyav heev, los ntawm kev kho cua sov tsis zoo. Koj tsis tuaj yeem pom nws ntawm CMM daim ntawv tshaj tawm tshiab tawm ntawm qhov chaw tsim khoom.
Cov txheej txheem kho yog thermal stress relieving. Tab sis lub voj voog tseem ceeb heev. Nws tsis yog ib lub thawv rau zuam xwb. Kuv tau pom cov khw siv lub voj voog dav dav rau txhua qhov chaw, uas feem ntau tsis muaj txiaj ntsig. Ib lub voj voog zoo yuav tsum xav txog qhov seem ntawm qhov geometry, seem thickness variations, thiab cov keeb kwm txias pib. Ib qho chaw, cored vaj tse xav tau qhov sib txawv ramp-up, soak, thiab txias-down profile dua li cov khoom slug. Kev ua haujlwm sib xyaw ua ke muaj txiaj ntsig zoo ntawm no. Lawv tuaj yeem tshuab ib qho kev xeem, ntsuas qhov sib txawv, tom qab ntawd rov qab mus thiab tweak lub voj voog kev ntxhov siab, thiab txawm kho cov txheej txheem casting nws tus kheej, hauv lub voj kaw. Lawv pom qhov kawg ntawm lawv qhov kev txiav txim siab casting.
Peb muaj ib lub gearbox vaj tse, ib lub thawv tiag tiag nrog cov phab ntsa tsis sib xws. Nws khaws warping thaum lub sijhawm ua haujlwm tho txawv kawg rau cov rooj zaum. Lub foundry insisted lawv cov txheej txheem yog suab. Qhov kev tawg tuaj thaum peb tau ua qhov yooj yim tab sis siv sij hawm siv: peb ntsuas qhov loj me ntawm cov qauv batch as-cam khwb cia, tom qab shakeout, tom qab txhaj tshuaj blasting, thiab tom qab kev ntxhov siab. Qhov kev txav tseem ceeb tau tshwm sim tsis yog thaum lub sij hawm kev ntxhov siab, tab sis thaum lub sij hawm muaj kev txhoj puab heev blasting. Txoj kev daws teeb meem yog hloov mus rau qhov tsis tshua muaj kev cuam tshuam cov xov xwm tawg thiab lub voj voog maj mam rau qhov tshwj xeeb. Lub foundry uas tsuas casts yeej tsis pom qhov no tawm. Lub foundry uas tseem tshuab tau txais cov lus qhia ncaj qha, mob thiab raug yuam kom daws nws.
Nrhiav tus khub, Tsis yog tus neeg muag khoom
Yog li, tag nrho qhov no txhais li cas thaum koj ntsuas a ductile hlau casting qhov chaw? Tsis txhob thov daim ntawv pov thawj thiab tus nqi xwb. Nkag mus rau hauv lawv cov txheej txheem piav qhia. Nug seb lawv tswj magnesium ploj. Nug txog lawv cov qauv tsim lub tswv yim piv rau machining. Nug lawv txoj hauv kev los tswj kev ntxhov siab. Nug ib qho piv txwv qhov twg cov khoom siv tsis ua haujlwm thiab lawv tau ua dab tsi txog nws. Lawv cov lus teb, lossis lawv txoj kev txaus siab nrhiav lawv, yuav qhia rau koj ntau dua li cov ntawv qhia glossy.
Lub tuam txhab lub neej ntev, zoo li QSY's 30-xyoo keeb kwm, yog qhov taw qhia muaj zog. Nws txhais tau hais tias lawv tau dim txoj kev lag luam, kawm los ntawm kev ua yuam kev, thiab hloov kho lawv cov txheej txheem. Lawv cov peev xwm teev tseg-plhaub molding, peev casting, CNC machining, ua hauj lwm nrog tshwj xeeb alloys - pleev xim rau ib daim duab ntawm ib tug vertically integrated teeb meem daws teeb meem, tsis yog ib tug melting khw. Lawv lub vev xaib, https://www.tsingtaocnc.com, qhia txog qhov kev sib koom ua ke no. Hauv kev lag luam no, qhov sib xyaw ua ke yog lub teeb liab ntawm qhov tob.
Thaum kawg, lub hom phiaj yog mus nrhiav ib lub tuam txhab uas xav tias zoo li tus engineer, tsis yog tus tsim khoom xwb. Koj xav kom tus neeg nyob rau lwm qhov kawg ntawm email kom ncua, xav txog koj daim ntawv thov, thiab tej zaum txawm thawb rov qab rau koj daim duab nrog cov lus pom zoo rau kev hloov pauv lub kaum sab xis lossis lub vojvoog nce uas yuav txhim kho castability thiab nqi. Qhov kev tsis txaus siab ntawd, lub sijhawm ntawm kev txiav txim siab tshaj lij, yog lub cim ntawm qhov tseeb. Nws yog qhov sib txawv ntawm qhov tau txais ib feem ntawm cov hlau thiab tau txais cov khoom siv txhim khu kev qha. Qhov ntawd yog qhov tseem ceeb ntawm qhov kev sib koom ua lag luam tiag tiag muab.
