Dab tsi ua a xuab zeb casting nqi Hoobkas tau them nqi - thiab yog vim li cas cov quotes sib txawv li wildly ntawm cov neeg muag khoom? Peb tau hais ntau tshaj 1,200 xuab zeb casting tej yaam num txij li thaum 2018. Nyob rau hauv lub ntiaj teb no kev xyaum, chav tsev nqi ntawm $18 mus rau $320 ib feem - tsis yog vim hais tias ntawm markup ua si, tab sis vim hais tias plaub qhov sib txawv dominate pricing: ib feem luj, khoom qib, dimensional tolerance chav kawm ntawv, thiab txhua xyoo ntim. 5-kg ASTM A159 Chav Kawm 30 grey hlau vaj tsev rau lub twj tso kua mis hydraulic khiav $ 47 ntawm 500 units / xyoo. Tib geometry hauv AMS 5387 cobalt alloy? $ 218 - tau tsav los ntawm tus nqi raw khoom, pwm complexity, thiab yuav tsum tau kho tom qab cam khwb cia kub.
Qhov hnyav thiab cov khoom tsav thawj 65% ntawm koj cov lus hais
Feem ntau cov neeg yuav khoom xav tias kev xaiv cov khoom yog hais txog kev tiv thaiv corrosion los yog lub zog. Tsis yog. Nws yog hais txog castability - thiab castability dictates cov sij hawm ua hauj lwm, seem seem, thiab cov cuab yeej hnav. Grey hlau (ASTM A159) ntws huv si, shrinks kwv yees, thiab tsis tshua muaj tawg thaum shakeout. Qhov ntawd ua rau kev ua haujlwm qis dua 2.1 teev ib tuj. Cobalt-nickel alloys zoo li AMS 5387 coj txawv: siab melting point (1,350 ° C), fluidity tsawg, thiab huab rhiab heev rau pwm ya raws. Ib qho misjudged pouring kub ua rau 18% nrog porosity-scapping tag nrho batch. Peb taug qab no txhua hnub: peb cov txiaj ntsig nruab nrab rau grey hlau yog 92.3%; rau AMS 5387, nws yog 74.1%. Qhov sib txawv ntawd ib leeg ntxiv $31.40/unit hauv rework thiab khoom poob.
Qhov hnyav tseem ceeb - tsis yog linearly, tab sis exponentially. Lub 12-kg casting yuav tsum tau 3.7x ntau xuab zeb, 4.2x ntev lub sij hawm sib dhos, thiab 2.8x siab dua ntawm pwm hloov thaum lub sij hawm pouring tshaj 3-kg ib feem. Peb lub cav quoting siv lub luj coefficient nkhaus-tsis yog tus nqi tiaj tus-vim qis dua 2 kg, teeb dominates nqi; siab tshaj 25 kg, lub sij hawm crane thiab lub tshuab ua kom sov lub sij hawm dhau los ua lub cev tsis muaj zog. Cov neeg siv khoom uas rov tsim cov khoom kom nyob qis dua 18 kg txiav tus nqi casting los ntawm 22-35% yam tsis muaj kev cuam tshuam.
Chav Kawm Tolerance yog qhov "Zoo txaus" dhau los ua kim
Ntawm no yog ob peb xuab zeb casting nqi chaw tsim khoom nthuav tawm: ntsib CT7 (ISO 8062) tsis yog kev ua kom nruj dua. Nws xav tau ntsuab-xuab zeb compaction tswj nyob rau hauv ± 0.8 psi, core box kub stability ntawm ± 1.2 ° C, thiab real-time metallostatic siab xyuas thaum lub sij hawm ncuav. Hla cov ntawd? Koj yuav ntaus CT9-tau txais rau cov khoom tsis tseem ceeb-tab sis koj lub tog raj kheej vaj tse yuav xav tau 0.8 hli ntxiv rau CNC tu. Qhov ntawd ntxiv $ 12.60 / ib feem hauv lub sijhawm ua haujlwm thiab 14% siv cov khoom siv raw.
Peb tau pom cov neeg siv khoom hais txog CT6 ntawm cov xuab zeb nrum vaj tsev "tsuas yog nyob rau hauv rooj plaub." Qhov tshwm sim? 37% cov lus tshaj tawm siab dua, 22-hnub ua lub sijhawm txuas ntxiv, thiab tsis muaj txiaj ntsig ua haujlwm. CT6 yog nyob rau hauv peev casting-tsis xuab zeb. Rau hydraulic valve lub cev los yog lub hauv paus twj tso kua mis, CT7 muab tag nrho sealing kev ncaj ncees thiab bolt-qhov sib dhos. Qhov ntawd yog qhov chaw qab zib: cov khoom tsim tau, tshuaj xyuas, thiab tus nqi-optimized.
Volume Hloov Txhua Yam—Tab sis Tsis Zoo Li Koj Cia Siab
Tsawg-ntim tsis txhais hais tias tus nqi siab - yog tias koj zam cov cuab yeej cuab tam. Ib tus neeg siv khoom xaj 42 piston twj tso kua mis nyob hauv cov hlau nplaum. Lawv insisted rau ib-tawm aluminium qauv. Tus nqi: $ 2,850 qauv + $ 142 / ib feem. Peb tau npaj cov qauv hlau modular nrog cov khoom sib hloov tau rau yav tom ntej variants. Tus nqi: $ 4,100 qauv + $ 89 / ib feem. Break-even ntawm 73 units. Lawv xav tau 42 xwb. Tab sis lawv qhov kev txiav txim tom ntej - tib lub tsev, hloov chaw nres nkoj - siv tib lub hauv paus qauv. Tag nrho khaws tseg thoob plaws ob txoj haujlwm: $ 3,210.
Nruab nrab-ntim (200–2,000 units / xyoo) qhib kev ua haujlwm tiag tiag. Ntawm 500 units, peb amortize tus nqi qauv, khiav mus tas li rau lub cub tawg, thiab teem caij xuab zeb reclamation nyob rau hauv tej. Chav tsev nqi poob 31% piv rau cov qauv ntau. Kev pom tseem ceeb: cov xuab zeb casting nqi khoom plig khoom plig * ruaj khov * ntim - tsis yog qhov siab tshaj plaws. Ib tus neeg siv khoom nruab nrab ntawm 300 units / xyoo them tsawg dua ib feem ntau dua ib qho xaj 1,000 units ib zaug ces mus ntsiag to rau 18 lub hlis.
Yuav ua li cas QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. Muab Predictable Sand Casting Nqi
Peb tau tsim peb lub chaw ISO-raws li nyob ib ncig ntawm peb tus nqi thauj tog rau nkoj: ntsug kev koom ua ke, metallurgical traceability, thiab GD&T-thawj engineering tshuaj xyuas. Tsis muaj outsourcing ntawm cov tub ntxhais ua, tsis muaj cov neeg thib peb cov khoom siv hluav taws xob, tsis muaj cov khoom siv tsis tau lees paub. Txhua AMS 5387 bar nqa cov ntaub ntawv xeem zeb thiab tau txheeb xyuas qhov tseeb ua ntej yaj. Txhua xuab zeb sib tov yog kuaj rau permeability thiab ntub tensile zog ib teev.
Peb cov engineers tsis tos rau kev kos duab - lawv pib nrog koj lub hom phiaj ua haujlwm. Thaum lub twj tso kua mis European OEM xa peb GD & T-hnyav daim duab rau T800 cobalt alloy lub tog raj kheej vaj tse, peb chij peb yam uas tau ntxiv $ 19.30 / ib feem nrog xoom kev ua tau zoo: qhov tsis ua haujlwm 0.025 hli flatness callout ntawm qhov tsis sib haum xeeb, ib qho tsis tsim nyog Rz 0.8 tiav rau hauv ib qho xuab zeb-0.0% txoj hauj lwm tiav. CMM tshuaj xyuas es tsis txhob sampling. Kho dua spec: tib qhov kev ntseeg tau, $ 137.50 / ib feem tsis yog $ 156.80.
Tus nqi xuab zeb tiag tiag tsis pom nyob rau hauv daim ntawv nthuav qhia. Nws raug kaw hauv kev txiav txim siab ntawm cov khoom siv science, pwm physics, thiab kev qhuab qhia ntau lawm. Xaiv lub Hoobkas uas ntsuas qhov porosity nrog X-ray CT - tsis yog kev kuaj pom xwb. Qhov ntawd txheeb xyuas qhov ntom ntom. Qhov ntawd tiv thaiv kev ua tsis tiav. Qhov ntawd ua rau koj tus nqi tag nrho ntawm cov tswv cuab poob - tsis yog tus nqi ntawm cov khoom.
Yog tias koj ntsuas a xuab zeb casting nqi Hoobkas, nug peb nqe lus nug: Dab tsi yog koj qhov txiaj ntsig zoo ntawm AMS 5387? Yuav ua li cas koj validate xuab zeb compactness ib tug ua haujlwm? Koj puas tuaj yeem qhia kuv lub hli tas los Cpk cov ntaub ntawv rau qhov loj me? Cov lus teb nthuav tawm ntau dua li cov lus hais puas tau.
