Lub ntiajteb txawj nqus tuag Casting: Ib Lub Sijhawm -Tested Metal Forming Technique
Thaum nws los txog rau kev tsim khoom hlau, lub ntiajteb txawj nqus tuag casting tej zaum yuav tsis flashy li siab -siab tuag casting, tab sis nws plays lub luag hauj lwm tseem ceeb hauv tsheb, machinery, thiab lwm yam lag luam. Muab qhov yooj yim, cov txheej txheem no suav nrog cov hlau molten rau hauv cov pwm hlau thiab cia lub ntiajteb txawj nqus ua haujlwm- cov hlau ntws mus rau hauv cov kab noj hniav, txias, thiab koj tau txais koj feem.
Txoj kev no ua haujlwm tau zoo tshwj xeeb rau cov khoom me me mus rau nruab nrab -cov khoom loj xws li cov cav cav, cov twj tso kua mis, thiab cov rooj zaum gearbox. Vim li cas ho mus nrog lub ntiajteb txawj nqus tuag casting? Vim tias nws muab cov khoom zoo thaum tso cai rau koj rov qab siv tib lub pwm ntau txhiab zaus, uas yeej them nyiaj rau lub sijhawm ntev.
Dab tsi Teem Lub Ntiaj Teb Tuag Casting Sib nrug los ntawm Tuag Casting?
Muaj coob tus neeg sib tov ob qho no. Qhov tseem ceeb sib txawv los mus rauyuav ua li cas cov hlau ntim cov pwm:
- Lub ntiajteb txawj nqus tuag casting: Cov neeg ua haujlwm ladle hlau molten rau hauv pwm -nws yog txhua yam hais txog ntuj nqus dej ntws
- Tuag casting: Cov tshuab quab yuam cov hlau nyob rau hauv lub siab hnyav, nyob qhov twg los ntawm kaum mus rau pua pua MPa
Qhov sib txawv tseem ceeb no qhia seb txhua txoj kev siv tau li cas. Tuag casting ua tau zoo ntawm qhov siab - ntim ntau lawm (xav ntau txhiab tus xov tooj txhua hnub), ua qhov tseem ceeb ntawm kev ceev. Lub ntiajteb txawj nqus tuag casting leans mus rau cov khoom me me tab sis muab qhov tseeb qhov tseeb nyob rau hauv ± 0.2-0.5mm thiab nto roughness mus rau Ra 3.2-qhov tseem ceeb specs rau precision mechanical Cheebtsam.
Vim li cas thiaj xaiv Gravity Tuag Casting?
Dimensional Stability Koj tuaj yeem suav rau
Tsis muaj kev cuam tshuam sab nraud, cov hlau solidifies ntau uniformly. Nws zoo ib yam li ci ncuav mog qab zib- qeeb thiab khov kho nrawm nrawm thiab nrawm txhua zaus. Nyob rau hauv tiag tiag - ntiaj teb no ntau lawm, lub ntiajteb txawj nqus cam khwb cia qhov chaw feem ntau qhia 20-30% tsawg qhov sib txawv me me piv rau tuag castings.
Superior Nto Zoo
Cov khoom feem ntau tuaj tawm ntawm pwm xav tau kev tshaj tawm tsawg heev - ua. Kuv tau pom lub tsheb kauj vab knuckles qhov twg lub ntiajteb txawj nqus cam khwb cia li xav tau ib tug ceev polish, thaum xuab zeb castings yuav tsum tau kev sib tsoo kom tau nyob qhov twg nyob ze.
Khiav cov Geometry complex
Nrog kev tsim lub rooj vag ntse tsim, koj tuaj yeem nrum nyias - cov ntu phab ntsa mus rau 2-3 hli tuab, txawm tias muaj cov cua txias sab hauv. Ib co high-end maus taus cav rooj plaub? Yog, ua li no.
Khoom Khoom Siv Khoom
Siv A356 aluminium alloy ua piv txwv-gravity tuag casting muab lub zog tensile nyob ib ncig ntawm 240-280 MPa nrog 3-5% elongation. Qhov ntawd yog qhov muaj zog txaus rau cov ntawv thov load-bearing.
Pwm tsim ua txhua qhov sib txawv
Lub ntiajteb txawj nqus tuag casting pwm feem ntau faib rau hauv sab sauv thiab sab qis uas clamp ua ke thaum lub sij hawm nchuav thiab cais tawm ib feem. Ib qho pwm tuaj yeem ua haujlwm nyob qhov twg los ntawm ntau txhiab mus rau kaum tawm txhiab lub voj voog, tsav tsheb ib - cov nqi qis dua ib zaug - siv cov xuab zeb pwm.
Kev xaiv cov khoom tseem ceeb - lub sijhawm loj. Txij li cov pwm rov ua dua cov txhuas yaj ntawm 700-750℃(los yog tshaj 1000℃rau tooj liab alloys), cov hlau tsis tu ncua yuav tsis txiav nws. Cov khoom siv niaj hnub nosiab -conductivity tooj liab alloyszoo li beryllium tooj liab lossis chromium-zirconium tooj liab, nrog thermal conductivity 3-4 npaug siab dua hlau. Cov cua kub sai sai no ua rau lub voj voog ntau lawm thaum tiv thaiv pwm nws tus kheej los ntawm kev tawg.
Kab noj hniav tsim yog qhov twg cov khoom tau nthuav heev. Kev tso chaw ntawm lub rooj vag, qhov tso pa tawm, cua txias channel routing-txhua qhov kev nthuav dav cuam tshuam rau qhov kawg ntawm qhov zoo. Kuv tau ua haujlwm ntawm rooj plaub uas tus neeg siv khoom tau txais cov porosity tib yam ntawm lawv lub cev twj tso kua mis. Tig tawm lub qhov cua tsis txaus. Peb tshem tawm ob lub qhov ntsaws ntsaws thiab qhov teeb meem ploj mus.