Kev nqis peev casting, tseem hu ua poob-wax casting, yog cov txheej txheem tsim khoom siv dav siv los tsim cov khoom siv hlau nyuaj, suav nrog txhuas hlau turbine hniav.
Txheej txheem txheej txheem
Kev tsim cov aluminium alloy turbine hniav los ntawm kev nqis peev casting suav nrog ntau cov kauj ruam tseem ceeb:
1. Qauv Tsim- Ib qho wax lossis 3D- luam tawm cov qauv polymer ntawm lub tshuab hluav taws xob yog tsim, feem ntau siv kev txhaj tshuaj molding lossis kev tsim khoom ntxiv.
2. Kev sib dhos- Ntau cov qauv siv quav ciab txuas nrog rau lub hauv paus rooj vag los tsim ib pawg.
3. Lub Tsev Plhaub- Lub rooj sib txoos yog rov dipped nyob rau hauv ib tug ceramic slurry thiab coated nrog refractory ntaub ntawv los tsim ib tug robust pwm.
4. Dewaxing- Cov pwm yog rhuab kom yaj thiab tshem tawm cov quav ciab, tawm hauv qhov hollow ceramic kab noj hniav.
5. Casting- Molten aluminium alloy yog poured rau hauv pwm nyob rau hauv lub tshuab nqus tsev los yog siab kom ua tiav filling.
6. Txias & Tshem tawm- Tom qab solidification, lub plhaub ceramic yog tawg, nthuav tawm cov hniav cam khwb cia.
7. Tshaj tawm -Kev ua haujlwm- Cov hniav tau txais kev kho cua sov, machining, thiab nto tiav kom tau raws li cov qauv kev ua haujlwm.
Qhov zoo ntawm Aluminium Alloys
Aluminium alloys, xws li A356 (Al-Si-Mg) thiab 2024 (Al{4}}Cu), feem ntau yog siv rau hauv daim ntaub ntawv turbine vim lawv:
● Lub teeb yuag zog, txhim kho roj efficiency hauv aerospace xyaw.
● Zoo corrosion kuj, xyuas kom durability nyob rau hauv hnyav ib puag ncig.
● High thermal conductivity, pab nyob rau hauv tshav kub dissipation.
● Yooj yim ntawm casting, tso cai rau nyias -walled, intricate designs.
Kev Sib Tw & Kev daws teeb meem
Txawm tias nws cov txiaj ntsig, kev nqis peev casting ntawm txhuas turbine hniav ntsib cov teeb meem xws li porosity, shrinkage defects, thiab inclusions. Cov teeb meem no tau txo qis los ntawm:
● Nqus - pab castingkom txo cov roj porosity.
● Cov txheej txheem ua kom zoo dua cov nplejlos txhim kho mechanical zog.
● Tsis yog -kev kuaj kev puas tsuaj (NDT)xws li X-ray tshuaj ntsuam xyuas kom pom qhov tsis zoo ntawm sab hauv.
Daim ntawv thov
Aluminium alloy turbine hniav ua los ntawm peev casting yog siv nyob rau hauv:
● Aircraft auxiliary power units (APUs)
● Muaj roj turbines
● Automotive turbochargers
Kev nqis peev casting tseem yog tus nqi- siv tau thiab txhim khu kev qha rau kev tsim khoom siab -kev ua tau zoo txhuas turbine hniav. Kev nce qib hauv kev simulation software, kev txhim kho alloy, thiab kev tswj cov txheej txheem txuas ntxiv txhim kho qhov zoo thiab kev ua haujlwm ntawm cov txheej txheem no, ua rau nws tseem ceeb hauv kev tsim vaj tsev niaj hnub no.
