1- Kev nqis peev yog dab tsi?
Kev nqis peev casting, uas tseem paub tias ploj poob siv ciab casting lossis precision casting, hais txog kev tsim cov ceramic nyob ib ncig ntawm cov qauv ciab kom tsim tau ntau los yog ib feem pwm kom tau txais cov hlau tsis muaj hlau. Cov txheej txheem no siv cov kev txhaj tshuaj expendable moulded ciab qauv txheej txheem kom ua tiav cov ntawv sib txawv nrog cov yam ntxwv nto tshwj xeeb. Txhawm rau tsim pwm, qauv ciab, lossis pawg ntawm cov qauv, yog tsau rau hauv cov khoom siv ceramic ntau zaus los ua lub plhaub tuab. Cov txheej txheem De-wax yog tom qab ntawd ua raws li cov txheej txheem lub plhaub qhuav. Siv lub tshuab ciab-tsawg dua cov plhaub ces yog tsim. Molten hlau yog tom qab ntawd muab hliv rau hauv cov plhaub tej pluaj (ceramic plooj) los yog pawg, thiab ib zaug ua kom tiav thiab txias, lub plhaub ceramic tau tawg tawm los qhia qhov kawg cam khwb cia hlau yam. Precision peev txheej peev tuaj yeem ua tiav qhov tseeb tshwj xeeb rau ob qho me me thiab loj qhov chaw pov tseg hauv ntau yam khoom siv.
2- Dab tsi yog Qhov Zoo ntawm Kev Nqis Peev?
✔ Zoo meej thiab du nto tiav
Tight dimension kam rau ua.
✔ Cov duab sib txuam thiab sib txuam nrog cov qauv tsim
Ability Muaj peev xwm ua rau nyias cam phab ntsa yog li ntawd lub teeb ntais casting ua ke
Ide Kev xaiv cov khoom siv nrum ntau thiab alloys (ferrous thiab non-ferrous)
✔ Daim duab tsis tas yuav tsum muaj hauv cov qauv tsim qauv pwm.
Txo qhov xav tau ntawm kev ua lub tshuab thib ob.
Material Cov khoom siv khib nyiab tsawg.
3- Cov Kauj Ruam ntawm Cov Txheej Txheem Ua Lag Luam Casting yog dab tsi?
Thaum lub sijhawm ua txheej txheem peev txheej, cov qauv siv quav ciab yog coated nrog cov khoom siv zoo nkauj, uas, thaum ua kom tawv, siv cov duab hauv cov duab hauv qhov ntawm qhov xav tau casting. Feem ntau, ntau qhov chaw tau muab pov ua ke rau qhov kev ua haujlwm siab los ntawm kev txuam cov qauv ciab rau ib qho nruab nrab ciab nplaum hu ua lub qe. Cov ciab tau yaj tawm ntawm cov qauv - uas yog vim li cas nws tseem hu ua txheej txheem ciab uas ploj lawm - thiab hlau tsis muaj hliv yog nchuav rau hauv cov kab noj hniav. Thaum cov hlau ua kom ruaj khov, cov hmoov av pwm ua rau shaken, tawm qhov ze ze ntawm cov qauv xav ua, tom qab ua tiav, sim thiab ntim.
4- Dab Tsi Yog Qhov Nqes Peev Siv Tau Rau?
Kev nqis peev txheej yog siv dav hauv cov twj tso kua mis thiab cov li qub, tsheb, tsheb thauj khoom, tsheb nqaj hlau, forklift cov tsheb thauj khoom thiab ntau lwm yam lag luam. Vim tias lawv qhov tshwj xeeb casting kam rau ua thiab zoo nkauj ua tiav, cov nplaim poob castings siv ntau thiab ntau dua. Tshwj xeeb tshaj yog, kev lag luam stainless hlau peev ua si lub luag haujlwm tseem ceeb hauv kev tsav nkoj thiab nkoj vim tias lawv muaj cov kev ua tau zoo los tiv thaiv xeb.
5- Dab Tsi Ua Yeeb Yam Tsis Txaus Siab Ua Rau Koj Lub Tsev Pom Khoom los ntawm Kev Nqis Peev?
Raws li cov ntawv sau sib txawv siv rau ua lub plhaub, cov peev txheej peev tuaj yeem faib ua silica sol casting thiab dej iav casting. Cov txheej txheem silica sol peev txheej txheem ua tau zoo dua Cov Txheej Txheem Tshaj Tawm Casting Tolerances (DCT) thiab Geometrical Casting Tolerances (GCT) dua li cov txheej txheem dej iav. Txawm li cas los xij, txawm tias los ntawm tib cov txheej txheem casting, Kev Cia Siab Qeb yuav txawv ntawm txhua qhov cam khwb cia vim lawv ntau yam peev txheej.
Peb lub hauv paus xav nrog koj tham yog tias koj muaj kev thov tshwj xeeb ntawm cov tseev kom muaj. Ntawm no nyob rau hauv cov hauv qab no yog cov qib txais nyiaj tau txais uas peb tuaj yeem mus txog ob qho los ntawm silica sol casting thiab dej iav casting txheej txheem cais:
✔ DCT Qib los ntawm Silica Sol Poob Quav Pov Tseg: DCTG4 ~ DCTG6
DCT Qib los ntawm Dej iav Tsoo Pov Tseg: DCTG5 ~ DCTG9
✔ GCT Qib los ntawm Silica Sol Poob Wax Casting: GCTG3 ~ GCTG5
✔ GCT Qib los ntawm Dej iav Tsawv ntub dej Casting: GCTG3 ~ GCTG5
6- Dab tsi yog Qhov Lij Nyiaj Tsawg Ntawm Kev Lag Luam Cam Khwb Nyiaj?
Cov peev txheej peev txheej tuaj yeem tsim txhua qhov alloys los ntawm feem ntawm ooj, rau kev kho hniav, kom ntau dua 1,000 lbs. (453.6 kg) rau cov khoom siv lub tshuab ua haujlwm tsis yooj yim. Cov cheebtsam me me tuaj yeem raug muab rau ntau pua ntawm ib tsob ntoo, thaum cov hlau hnyav hnyav ntau zaus ntau dua yog tsim nrog ib tus ntoo. Qhov hnyav txwv ntawm kev nqis peev yog nyob ntawm pwm kev tuav cov cuab yeej ntawm lub chaw cog khoom. Cov chaw kho mob nrum qhov chaw txog li 20 lbs. (9.07 kg). Txawm li cas los xij, ntau qhov chaw nyob hauv tsev yog nce lawv lub peev xwm los ncuav qhov loj dua, thiab cov khoom siv hauv 20-120-lb. (9.07-54.43-kg) ntau qhov ua qhov muaj ntau. Ib qho siv feem ntau siv rau hauv kev tsim qauv rau kev nqis peev yog 3: 1 — rau txhua 1-lb. (0.45-kg) ntawm casting, yuav tsum muaj 3 lbs. (1.36 kg) rau tsob ntoo, nyob ntawm qhov tsim nyog tawm los thiab qhov loj me ntawm cov khoom tiv. Tsob ntoo ib txwm yuav tsum tau loj dua li qhov sib xyaw, thiab qhov sib piv ua kom pom tseeb tias thaum lub sijhawm cuam thiab ua haujlwm, cov roj thiab ntsws yuav xaus rau hauv tsob ntoo, tsis yog qhov cuam.
7- Dab tsi ntawm Qhov Ua tiav ntawm Qhov Chaw Ua Puas Tau Tsim Nrog Cov Peev Casting?
Vim tias lub plhaub ceramic ua ke nyob ib puag ncig cov qauv du uas tsim los ntawm kev txhaj tshuaj ciab rau hauv polished txhuas tuag, qhov kawg ua tiav casting zoo heev. Qhov 125 rms micro ua tiav yog qhov qauv thiab txawm tias qhov ua tiav (63 lossis 32 rms) muaj peev xwm ua tau nrog cov kev ua haujlwm tom qab kev ua tiav theem kawg. Cov cuab yeej siv hlau ua hluav taws xob ib leeg muaj lawv tus kheej cov qauv rau kev ua kom zoo nkauj hauv pem teb, thiab cov neeg ua haujlwm hauv tsev thiab cov kws tsim qauv tsim qauv / cov neeg yuav khoom yuav sib tham txog cov peev xwm no ua ntej cov cuab yeej tso tawm Cov qauv tseeb nyob ntawm kev tivthaiv qhov kawg siv thiab qhov kawg ntawm cov pleev plhu.
8- Puas yog cov peev txheej Castings kim?
Vim tias cov nqi thiab ua haujlwm nrog rau cov pwm, cov peev txheej feem ntau muaj cov nqi siab dua li cov forged lossis cov xuab zeb thiab cov pwm ua haujlwm ruaj khov. Txawm li cas los xij, lawv ua rau tus nqi ntau dua los ntawm kev txo qis ntawm kev siv lub tshuab ua tiav los ntawm kev ua-ze ze-net-cov duab sib haum. Ib qho piv txwv ntawm qhov no yog kev nrhav hauv kev tsim kho tsheb cov cuab yeej hauv tsheb, uas tuaj yeem nrum nrog zoo tsis muaj machining. Ntau qhov chaw uas yuav tsum tau milling, tig, drilling thiab sib tsoo kom tiav tuaj yeem yog peev nrum nrog tsuas yog 0.020-0.030 cov khoom lag luam tiav. Ntxiv mus, peev txheej peev yuav tsum tau ua cov ces kaum tsawg kawg los tshem cov qauv ntawm cov cuab yeej; thiab tsis tas yuav sau cov ntsiab lus los mus tshem cov hlau ua los ntawm lub khauj khaum. Qhov no tuaj yeem tso cai cia cov castings nrog 90-degree ntawm lub kaum sab xis kom tsim los nrog tsis muaj kev machining ntxiv kom tau txais cov ces kaum.
9- Cov Cuab Yeej Siv thiab Cov Qauv Dab Tsi Tsim Nyog Tsim Nyog rau Qhov Poob Cawv Cawv?
Los tsim cov qauv pwm ua pwm, ib qho kev sib cais-muaj kab noj hlau tuag (nrog rau cov qauv ntawm qhov kawg casting) yuav tsum tau ua. Ua raws li cov txheej txheem nyuaj ntawm cov hlau nplaum, ntau yam kev sib txuas ntawm cov hlau, cov pob zeb (ceramic) lossis soluble cores yuav raug ua haujlwm kom tso cai rau qhov tsim nyog xav tau. Feem ntau cov cuab yeej siv rau kev nqis peev nrum ntawm $ 500- $ 10,000. Kev sim sai (RP), xws li qauv stereo lithography (SLA), kuj tseem siv tau. Tus qauv RP tuaj yeem tsim nyob rau hauv cov xuab moos thiab ua raws li lub duab tseeb ntawm ib feem. RP ntu ces tuaj yeem muab sib dhos ua ke thiab coated hauv ceramic slurry thiab hlawv tawm tso cai rau kom muaj lub hollow kab noj hniav kom tau txais lub peev txheej thaiv cov txheej txheem. Yog tias qhov casting loj dua li lub hnab ntawv tsim, ntau RP ntu ntu tsim muaj peev xwm ua tau, sib sau ua ib feem, thiab nrum kom ua tiav cov qauv tivthaiv qhov kawg. Siv RP ntu tsis zoo rau ntau lawm, tab sis tuaj yeem pab pab neeg tsim qauv kuaj xyuas ib feem rau qhov tseeb thiab daim ntawv, haum thiab ua haujlwm ua ntej xa daim ntawv xaj khoom. RP seem tseem tso cai rau tus tsim qauv los sim nrog ntau qhov kev teeb tsa lossis lwm txoj hauv kev alloys tsis muaj tus nqi loj ntawm cov khoom siv.
10- Puas muaj Porosity thiab / lossis Shrinkage Tsis Zoo nrog Kev Pom Zoo Peev?
Qhov no nyob ntawm seb qhov chaw zoo li cas hlau casting chaw ua kom cov roj tawm ntawm cov hlau molten thiab ceev npaum li cas cov seem solidify. Raws li tau hais dhau los, ib tsob ntoo tsim tau zoo yuav cia qhov chaw da dej kom tsis txhob raug rau hauv tsob ntoo, tsis yog qhov cuam, thiab lub ntsej muag siab siab lub ntsej muag ua kom zoo dua qub. Tsis tas li, nqus-peev nrum Cheebtsam tshem cov hlau tawg ntawm gassing tsis xws luag vim huab cua yog tshem tawm. Kev nqis peev txheej yog siv rau ntau qhov kev thov tseem ceeb uas yuav tsum tau xoo hluav taws xob thiab yuav tsum ua tiav cov qauv ntsuas kom muaj tseeb. Lub sam xeeb ntawm kev nqis peev tuaj yeem ua tau zoo dua rau qhov chaw tsim los ntawm lwm txoj hauv kev.
11- Dab Tsi Hlau thiab Alloys tuaj yeem raug muab los ntawm Kev Xam Luam Ntawm Koj Chaw Tso Khoom?
Yuav luag txhua yam ntawm cov hlau tsis sib haum thiab tsis muaj hlau thiab txhuas ntau tuaj yeem muab pov los ntawm peev txheej txheem txheej txheem. Tab sis, ntawm peb poob siv quav ciab casting foundry, peb mas pov lub carbon hlau, alloy hlau, stainless hlau, super duplex stainless hlau, grey cam khwb cia hlau, ductile cam khwb cia hlau, txhuas alloys thiab tooj dag. Ib qho ntxiv, qee daim ntawv thov yuav tsum siv cov khoom tshwj xeeb lwm cov khoom siv uas yog siv hauv cov chaw ib puag ncig hnyav. Cov alloys, xws li Titanium thiab Vanadium, ua tau raws li qhov xav tau ntxiv uas tsis tuaj yeem ua tiav nrog cov txheej txheem Aluminium Alloys. Piv txwv li, Titanium alloys feem ntau yog siv los tsim cov tshuab cua tshuab thiab cov roj vanes rau lub tshuab aerospace. Cobalt-puag thiab Nickel-puag alloys (nrog rau ntau cov ntsiab lus txuas ntxiv kom ua tiav cov khoom tshwj xeeb-lub zog, lub zog tiv thaiv kev ua kom tsis muaj zog thiab qhov kub thiab txias tsis zoo), yog hom ntxiv ntawm cov hlau nrum.
12- Vim li cas Kev Tso Lag Luam Tso Nyiaj Tau Raug Hu Ua Precision Casting?
Cov peev txheej peev txheej tseem hu ua precision casting vim tias nws muaj ntau qhov chaw zoo dua thiab siab dua lwm cov txheej txheem casting. Tshwj xeeb tshaj yog rau cov txheej txheem silica sol casting txheej txheem, cov kev ua tiav tiav tuaj yeem ncav cuag CT3 ~ CT5 hauv geometrical casting kam thiab CT4 ~ CT6 nyob rau hauv seem casting kam. Rau cov casings tsim los ntawm peev, yuav muaj tsawg dua los yog tsis tas yuav tsum ua cov txheej txheem machining. Rau qee qhov, qhov peev txheej yuav hloov tau txheej txheem machining ntxhib.
13- Vim li cas thiaj plam Wax Casting Hu Peev Casting?
Kev nqis peev tau txais nws lub npe vim tias cov qauv (siv quav ciab rov qab) tau nqis peev nrog cov khoom siv puag ncig thaum lub sijhawm ua txheej txheem. Qhov "nqis peev" ntawm no txhais tau tias yog ncig. Cov ciab coj ua dua yuav tsum tau nqis peev (ncig) los ntawm qhov refractory mateials los tiv thaiv qhov kub siab ntawm cov hlau ntws uas ntws thaum ua hlau.