Thaum koj pib saib mus rau hauv stainless hlau peev casting tuam txhab uas muag, thawj yam uas hits koj yog pes tsawg daim ntawv thov los ua cov kws tshwj xeeb. Lo lus tau muab pov tseg ntau heev nws pib poob lub ntsiab lus. Txhua leej txhua tus cog lus nruj tolerances, complex geometries, thiab superior nto tiav. Tab sis tau siv ntau xyoo nyob rau hauv ob qho tib si kev muab khoom thiab kev tsim khoom, kuv tau kawm qhov sib txawv tiag tiag tsis nyob hauv phau ntawv; nws yog nyob rau hauv lub gritty, feem ntau unglamorous cov ntsiab lus ntawm cov txheej txheem tswj, kev nkag siab ntawm cov khoom, thiab kev daws teeb meem uas tshwm sim thaum ib tug wax qauv warps los yog lub plhaub tawg. Nws tsis yog tsuas yog nchuav hlau; nws yog hais txog kev tswj cov saw hlau ntawm ilv, interdependent cov kauj ruam uas ib tug yuam kev nyob rau hauv ib tug yuav scrap tag nrho batch. Ntau tus neeg siv khoom tuaj yeem kho tsuas yog nyob rau qib kawg alloy-xws li 316L lossis 17-4 PH-uas yog qhov tseem ceeb, paub meej, tab sis qhov ntawd tsuas yog qhov pib thaiv. Tus nqi tiag tiag thiab qhov zoo yog txiav txim siab ua ntej.
Lub hauv paus ntawm cov txheej txheem: Ntau tshaj li Pouring Hlau
Muaj tseeb peev casting, tshwj xeeb tshaj yog rau cov hlau tsis muaj steel, yog kev seev cev ntawm kev kos duab thiab kev tshawb fawb phem. Lub plhaub pwm txheej txheem yog qhov uas nws tag nrho pib. Kuv tau pom cov khw muag khoom nyob qhov twg hauv chav slurry ib puag ncig - av noo, kub - tsis tswj, thiab lawv xav paub tias vim li cas lawv lub plhaub lub zog sib txawv. Rau cov khoom siv siab ncaj ncees, hais rau kev siv marine lossis tshuaj ua haujlwm, qhov tsis sib xws yog tus neeg tua neeg. Lub plhaub tsis yog lub thawv xwb; nws yog dab tsi txhais qhov nto tiav thiab qhov tseeb qhov tseeb. Lub plhaub tsis zoo ua rau hlawv-hauv, hlau nkag, thiab cov nqi ua tiav txaus ntshai uas tuaj yeem ua ob npaug ntawm tus nqi.
Qhov no yog qhov uas lub tuam txhab qhov tob qhia. Kuv nco qab txog qhov project rau lub twj tso kua mis impeller xav tau CF8M stainless. Thawj qhov qauv los ntawm tus neeg muag khoom zoo li zoo meej, tab sis ua tsis tiav hauv kev sim siab. Qhov teeb meem? Micro-shrinkage. Tus neeg muag khoom tau siv tus txheej txheem rooj vag thiab nce qib rau cov hlau tsis muaj steel, tab sis qib austenitic zoo li CF8M muaj cov qauv tshwj xeeb. Qhov kho tsis zoo; nws yog hais txog repositioning lub risers thiab kho cov ncuav kub raws li lub caij ntuj sov ntawm cov khoom. Qhov kev tweak ntawd los ntawm kev paub, tsis yog phau ntawv.
Ntau stainless hlau peev casting tuam txhab uas muag yuav outsource lawv cov qauv tsim los yog plhaub tsev. Cov muaj peev xwm tiag tiag, txawm li cas los xij, khaws nws tag nrho hauv tsev. Nws muab lawv tswj. Thaum koj mus xyuas lub tsev, tsis txhob saib lub qhov cub xwb. Nug kom pom cov wax txhaj tshuaj, cov slurry tso tsheb hlau luam, cov chaw siv stucco. Kev huv thiab kev txiav txim (lossis tsis muaj) nyob ntawd qhia koj ntau tshaj li daim ntawv pov thawj zoo ntawm phab ntsa.
Khoom Nuances thiab Cov Khoom Tshwj Xeeb Alloys Factors
Stainless hlau yog ib tsev neeg, tsis yog ib qho khoom siv. Lub machining thiab kev kho cua sov teb ntawm 304 yog lub ntiaj teb sib nrug ntawm 15-5 PH. Ib qho pitfall yog kho lawv txhua tus tib yam hauv kev ua haujlwm tom qab casting. Kuv tau ua haujlwm nrog a stainless hlau peev casting tus neeg muag khoom ntawm lub cev valve hauv duplex steel 2205. Lub casting yog suab, tab sis lawv siv ib tug tov annealing voj voog meant rau 316. Nws puas ferrite-austenite tshuav nyiaj li cas thiab corrosion kuj. Peb yuav tsum khawb qhov ntau. Qhov ntawd yog $40,000 zaj lus qhia hauv metallurgical tshwj xeeb.
Qhov no yog vim li cas qhov hais txog cov alloys tshwj xeeb xws li npib tsib xee lossis cobalt-raws li cov hauv ib lub tuam txhab cov ntaub ntawv yog ib qho teeb meem tseem ceeb. Nws qhia tias lawv yuav tsum tau ua haujlwm nrog ntau qhov nyuaj melting, nchuav, thiab kub-isostatic-nias (HIP) cov cai. Yog tias lawv tuaj yeem tuav Hastelloy C-276, ces casting 316L yog taug kev hauv lub tiaj ua si rau lawv. Cov khoom siv thiab kev paub ua haujlwm nce, tsis qis.
Coj ib lub tuam txhab zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY). Lawv teev stainless hlau peev casting nrog rau lub plhaub pwm casting thiab CNC machining, thiab tshwj xeeb hu tawm cobalt thiab nickel alloys. Qhov ntawd yog kev sib xyaw ua ke. Nws qhia kuv tias lawv yuav nkag siab tias qhov cam khwb cia feem ntau tsuas yog cov khoom tiav ib nrab. Muaj machining hauv tsev yog qhov txiaj ntsig zoo rau kev tswj qhov ntev thiab lub sijhawm ua haujlwm. Koj zam qhov ntiv tes taw ntawm qhov chaw tsim khoom thiab lub khw muag khoom thaum tsis muaj kev zam. Lawv 30-xyoo thov nyob rau hauv casting thiab machining qhia lawv tej zaum yuav pom feem ntau ntawm cov ntaub ntawv hais txog mob taub hau thiab (cia siab) kawm kom zam lawv.
Integration Machining Advantage
Qhov no ua rau kuv lub ntsiab lus tom ntej: qhov sib txuam tsis sib haum ntawm kev ua haujlwm thiab kev ua haujlwm. Nws yog ib qho loj, feem ntau underestimated tus nqi. Kuv ib zaug tau txais qee qhov kev nqis peev stainless hlau cam khwb cia flanges los ntawm lub chaw tsim khoom tshwj xeeb. Cov castings tau zoo, tab sis cov datum nto rau machining tsis zoo tsim. Lub khw muag khoom sib cais tau tawm tsam los tuav lub perpendicularity callout, ua rau 30% tsis lees paub tus nqi. Qhov teeb meem yog tsim teeb meem uas yuav tsum tau ntes tau thaum lub sij hawm casting txheej txheem npaj.
Thaum lub peev casting tuam txhab uas muag kuj khiav CNC departments, lawv cov txheej txheem engineers xav txog ib feem holistically. Lawv yuav hais kom hloov maj mam hloov lub kaum sab xis lossis pom zoo kom hloov ib txoj kab sib cais los tsim kom muaj qhov zoo dua machining datum txij thaum pib. Lawv tsim lub rooj vag kaw lus tsis yog rau lub suab hlau nkaus xwb, tab sis kuj yuav ua li cas nws yuav raug tshem tawm thiab qhov twg cov cim clamp yuav nyob. QSY tus qauv ntawm muab ob lub plhaub pwm / kev nqis peev casting thiab CNC machining nyob rau hauv ib lub ru tsev yog raws nraim cov kev pab cuam uas daws cov teeb meem latent. Nws tsis yog hais txog kev yooj yim xwb; nws yog hais txog built-in kev ruaj ntseg zoo.
Lub machining ntawm cam khwb cia stainless muaj nws tus kheej tricks. Cov khoom siv tuaj yeem ua gummy, qib ua haujlwm hnyav zoo li 304 tuaj yeem ua phem rau cov cuab yeej, thiab qhov tsis sib xws ntawm qhov chaw ua haujlwm tuaj yeem ua rau cov cuab yeej sib tham. Ib tus neeg muab khoom sib xyaw ua ke tau zoo li tsim cov khoom pub, nrawm, thiab cov cuab yeej siv rau lawv tus kheej castings. Qhov kev paub ntawm lub tuam txhab tsis muaj nyob thaum cov khoom raug xa tawm mus rau lub khw muag khoom siv tshuab.
Kev Pom Zoo vs. Kev muaj tiag hauv av
Cov ntawv pov thawj yog cov ceg txheem ntseeg. ISO 9001, PED, AD2000 - lawv tsim nyog rau kev ua lag luam hauv ntau qhov chaw, tab sis lawv tsis lav qhov zoo casting. Lawv lav tau ib daim ntawv kaw lus. Qhov zoo tiag tiag yog nyob rau hauv cov kev sim uas tsis muaj kev puas tsuaj (NDT) thiab kev txaus siab los tswj lawv. Lub tuam txhab puas ua 100% dye penetrant kuaj ntawm txhua qhov tseem ceeb hauv chav kawm? Puas yog lawv muaj X-ray lossis ultrasound hauv tsev, lossis lawv puas tawm ntawm nws? Outsourcing tuaj yeem ntxiv hnub thiab txo cov lus tawm tswv yim rau kev kho cov txheej txheem.
Kuv nco qab tshawb xyuas qhov kev cog lus stainless hlau peev casting tus neeg muag khoom. Lawv cov ntaub ntawv yog impeccable. Tab sis nyob rau hauv pem teb, kuv pom ib tug neeg ua hauj lwm hais txog yuav zom ib tug defect ntawm lub valve vaj tse yam tsis muaj ntaub ntawv thawj zaug los yog tau txais kev pom zoo QA. Qhov kev txiav txim ib zaug no voided lawv tag nrho traceability system. Cov kab lis kev cai ntawm kev ua tau zoo ntawm lub khw hauv pem teb, kev txhawb nqa ntawm cov neeg ua haujlwm kom nres ib txoj kab, tseem ceeb tshaj li daim ntawv pov thawj hauv chaw tos txais.
Lub neej ntev hauv kev lag luam, zoo li QSY's 30 xyoo, feem ntau cuam tshuam nrog cov kab lis kev cai zoo. Lawv tau muaj txoj sia nyob vim tias lawv yuav tau kho cov teeb meem uas ua rau cov tuam txhab tshiab tawm ntawm kev lag luam. Tej zaum lawv tau nqis peev rau hauv cov cuab yeej xws li spectrometers rau kev txheeb xyuas chemistry thiab tau tsim lawv cov waxes thiab binders kom txo tau qhov sib txawv. Qhov no tsis yog glamorous, tab sis nws yog dab tsi ua rau lub tuam txhab txhim khu kev qha.
Tswv yim rau kev koom tes
Yog li, koj ua haujlwm nrog cov tuam txhab no zoo li cas? Ua ntej, muab ib daim duab tiav. Tsis txhob xa ib daim duab xwb. Qhia meej rau daim ntawv thov ib puag ncig-kub, siab, media, cyclic loading. Qhov no qhia txhua yam los ntawm kev xaiv alloy mus rau qhov xav tau rau HIP. Thib ob, qhib rau Tsim rau Kev Tsim Kho Kev Lag Luam (DFM) tawm tswv yim. Ib tug zoo foundry engineer tuaj yeem qhia me ntsis phab ntsa thickness hloov kho lossis lub vojvoog hloov pauv uas ua kom zoo dua qub thiab txo tus nqi, tsis muaj kev poob haujlwm.
Thib peb, tswj cov kev cia siab ntawm qhov chaw tiav. Raws li-cam khwb cia nto roughness (Ra) rau peev casting yog zoo, tab sis nws tsis yog ib tug machined daim iav tiav. Yog tias koj xav tau Ra 1.6 ntawm lub bore, qhia nws ua qhov chaw ua haujlwm. Tom qab ntawd lub foundry yuav tawm hauv Tshuag raws li. Clarity ntawm no tiv thaiv kev poob siab.
Thaum kawg, saib kev sib raug zoo raws li kev sib koom tes. Cov txiaj ntsig zoo tshaj plaws uas kuv tau muaj los ntawm kev sib koom tes daws teeb meem. Muaj ib tug complex vaj tse peb xav tau nyob rau hauv 17-4 PH mob H1150. Thawj khiav tau tawg. Los ntawm kev tshawb fawb sib koom ua ke - lawv cov kws ua haujlwm metallurgist thiab peb tus kws tshaj lij - peb tau taug qab nws mus rau qhov sib xyaw ua ke ntawm cov cua txias tom qab nchuav thiab tsim cov kaum ntse ntse sab hauv. Peb hloov cov qauv tsim (ntxiv cov fillet) thiab lawv tweaked lawv cov txheej txheem shakeout. Ib feem tau nyob rau hauv ntau xyoo tam sim no. Qhov ntawd yog tus nqi ntawm kev koom nrog kev muaj peev xwm stainless hlau peev casting tuam txhab uas muag-lawv dhau los ua kev txuas ntxiv ntawm koj tus kheej pab pawg engineering.
Nws yog thaj chaw muaj neeg coob coob, tab sis cov yeej tsis yog cov uas muaj cov vev xaib zoo tshaj plaws. Lawv yog cov uas muaj cov tswj slurry tso tsheb hlau luam, nyob rau hauv-lub tsev metallurgist, integrated CNC hlwb, thiab pragmatic, kev daws teeb meem mindset honed ntau xyoo lawm, zoo li lub lag luam keeb kwm implied los ntawm ib lub tuam txhab xws li QSY. Cov khoom siv tes ua yog nyob rau hauv cov ntsiab lus, thiab cov hlau ib txwm qhia qhov tseeb.
