Precision casting yog hais txog lub npe dav dav ntawm cov txheej txheem casting uas siv cov pwm tsis yog xim hlau thiab qhov tseeb ntawm cov khoom yog siab dua li cov xuab zeb pwm zoo tib yam, nrog rau txoj kev dewaxing, gypsum pwm txoj kev thiab ceramic pwm txoj kev. Muaj ob hom dewaxing casting txoj kev: khoom pwm txoj kev thiab ceramic plhaub pwm txoj kev, thiab tom kawg yog ib qho kev txhim kho ntawm yav dhau los. Ceramic plhaub pwm txoj kev yog dav siv los ntawm dewaxing precision casting kev lag luam tam sim no, vim nws muaj cov hauv qab no zoo:
(1) Kev ruaj ntseg zoo
(2) Cov khoom siv refractory tsawg dua yog siv
(3) Lub teeb yuag, yooj yim los tuav, kov thiab ua cov castings loj
(4) Cov txheej txheem tuaj yeem ua haujlwm ib nrab kom txuag tau cov neeg ua haujlwm thiab txhim kho tus nqi ntau lawm
(5) Tsawg tus nqi tsim khoom
(6) Ceramic plhaub pwm yog nyias, thiab qhov txias ntawm casting tom qab pouring yog siab thiab uniform, yog li nws cov cuab yeej siv tau zoo dua.
Cov yam ntxwv thiab qhov zoo ntawm precision casting los ntawm dewaxing txoj kev yog raws li nram no:
(1) Qhov siab tshaj plaws txwv ntev ntawm qhov casting yog 700mm, thiab qhov yooj yim ntev yog tsawg dua 200mm. Qhov siab tshaj plaws qhov hnyav ntawm castings yog hais txog 100 kg, feem ntau tsawg dua 10 kg.
(2) Qhov ntev kam rau ua ntawm castings yog 20mm ± 0.13MM, 100mm ± 0.30mm thiab 200mm ± 0.43mm, thaum qhov tseeb ntawm qhov me me tsis yooj yim mus txog hauv ± 0.10mm. Lub kaum sab xis yog ± 0.5 ~ 2.0 degrees, thiab qhov tsawg kawg nkaus thickness ntawm cov casting yog 0.5 ~ 1.5 hli. Qhov nto roughness ntawm casting yog hais txog rmax4s ~ 12s.
(3) Muaj qee qhov kev txwv rau cov ntaub ntawv ntawm precision castings, xws li txhuas alloy, magnesium alloy, titanium alloy, tooj liab alloy, ntau yam steels, cobalt raws thiab npib tsib xee raws li kub-resistant alloys thiab cov ntaub ntawv nyuaj.
(4) Lub workpiece nrog cov duab complex muaj qhov zoo qhov tseeb thiab tsis tshua muaj machining.
(5) Txuag cov ntaub ntawv pov tseg thiab tuaj yeem ua tau ntau yam.
Dewaxing precision castings yog dav siv nyob rau hauv dav hlau cav, roj turbines, chav turbines, aircraft qhov chaw, internal combustion engine, tsheb, zaub mov machinery, tshuab luam ntawv, ntawv ua machinery, compressors, li qub, twj, meters, tshuab xaws, riam phom, lag luam machinery. , thiab lwm yam tshuab qhov chaw.
