U-shaped Water Glass Investment Castings Rau Railway Siv

Khoom Taw Qhia

U-shaped dej iav peev castings rau kev siv tsheb ciav hlau yog qhov zoo tshaj plaws castings tsim los siv hauv kev lag luam railway. Lawv yog tsim los ntawm cov khoom siv ruaj khov thiab ua tib zoo ua kom tau raws li cov qauv kev lag luam nruj. Cov castings no tshwj xeeb tsim los rau kev tsheb ciav hlau dej iav tshuab. Lawv tau siv los xyuas cov dej theem hauv lub khob dej, uas yog ib feem tseem ceeb ntawm kev ua haujlwm nyab xeeb ntawm lub tsheb ciav hlau. U-zoo li tus tsim ntawm cov castings no ua rau nws yooj yim los nyeem cov qib dej kom raug. Txoj kev peev casting txheej txheem siv los tsim cov castings ua kom muaj qhov tseeb qhov tseeb thiab qhov ua tiav du. Qhov tshwm sim yog ib qho kev txhim khu kev qha thiab kav ntev uas tuaj yeem tiv taus qhov hnyav ntawm kev siv tsheb ciav hlau. Cov U-shaped dej iav peev castings yog ib feem tseem ceeb ntawm txoj kev tsheb ciav hlau dej iav. Lawv ua kom muaj kev nyab xeeb ntawm lub tsheb ciav hlau ua haujlwm los ntawm kev qhia meej txog qib dej. Nws cov kev tsim kho zoo thiab ua haujlwm ntev ua rau nws muaj kev ntseeg siab rau kev siv tsheb ciav hlau.

Kev nqis peev Casting
Kev nqis peev casting muaj cov yam ntxwv ntawm qhov siab qhov tseeb, tsis tshua muaj qhov roughness, tuaj yeem siv yam tsis muaj kev ua haujlwm lossis kev ua haujlwm me me, yog cov txheej txheem casting siab heev nrog tsawg dua thiab tsis muaj kev txiav, thiab yog cov hlau ze, cov txheej txheem tsim, yog li peev casting yog kuj hu ua "poob ciab casting", "precision casting", "precision casting". Kev nqis peev casting yog dav siv hauv aerospace, riam phom, machinery, electronics, roj av, tshuaj lom neeg kev lag luam, lub zog, tsheb thauj mus los, lub teeb kev lag luam, textiles, khoom kho mob thiab khoom plig, thiab lwm yam., thiab yog siv nyob rau hauv tag nrho cov mus rau lub neej xws li ntuj, av thiab underwater, thiab yog ib qho tseem ceeb hauv kev lag luam rau kev loj hlob ntawm lub teb chaws kev khwv nyiaj txiag thiab lub realization ntawm "Suav npau suav". Vim lub complexity ntawm lub peev casting txheej txheem, lub influencing yam tseem ceeb, thiab cov phau ntawv ua hauj lwm nyob rau hauv ntau lawm, nws yog ib qho nyuaj rau tswj, yog li ntawd, tus nqi ntawm cov peev castings yog tsis txaus siab, raws li cov ntaub ntawv tsis tiav, tus nqi rejection yog hais txog. 10%, thiab qhov kev tsis lees paub ntawm tus kheej tsis xws luag yog siab dua, thiab qhov zoo ntawm castings tsis ruaj khov heev. Kev daws cov peev txheej casting tsis xws luag yog ib lub luag haujlwm tseem ceeb ntawm kev nqis peev casting cov neeg ua haujlwm. Txhawm rau ua txoj haujlwm no kom zoo, nws yog qhov yuav tsum tau ua kom paub txog qhov tsim nyog ntawm kev nqis peev casting, paub txog cov txheej txheem ntawm kev nqis peev casting qhov tsis zoo, thiab siv cov cuab yeej sib xws ntawm kev nqis peev casting qhov tsis zoo.
 

Kev nqis peev Casting
Kev nqis peev casting, tseem hu ua poob ciab casting, yog txheej txheem hlau casting uas siv cov qauv siv quav ciab los tsim cov pwm ceramic rau hauv cov hlau molten yog poured. Cov txheej txheem feem ntau yog siv los tsim cov hlau zoo li cov khoom siv rau ntau yam kev lag luam, suav nrog aerospace, tiv thaiv, kho mob thiab tsheb.
Kev nqis peev casting txheej txheem tuaj yeem muab faib ua cov kauj ruam hauv qab no:
Kauj Ruam 1: Ciab Pattern Ua
Nyob rau hauv thawj kauj ruam no, ib tug ciab qauv ntawm ib feem yuav cam khwb cia yog generated. Qhov no tuaj yeem ua tiav los ntawm kev siv lub tshuab wax txhaj tshuaj molding los ntawm tes. Cov qauv yog txuas nrog ib tsob ntoo lossis sprue, ib lub hauv paus pas nrig ntawm cov quav ciab uas tso cai rau ntau tus qauv muab pov rau hauv ib qho pwm.
Kauj Ruam 2: Kev sib dhos
Cov qauv ntawm tus kheej lossis rooj vag nrog cov qauv ntxiv yog tom qab ntawd sib sau ua ke hauv lub plhaub ceramic. Lub plhaub yog ua los ntawm cov khoom siv refractory, xws li silica, zircon, los yog alumina, thiab yog tsim nyob ib ncig ntawm ib tug siv quav ciab qauv siv slurry ntawm cov khoom ntawd thiab cov slurry yog siv rau cov qauv ntau zaus. Tom qab txhua txheej, lub plhaub tau qhuav thiab kho.
Kauj Ruam 3: Dewaxing
Thaum lub plhaub ceramic yog tsim nyob ib ncig ntawm cov quav ciab pwm, lub plhaub ceramic yog rhuab, ua rau cov quav ciab yaj thiab ntws tawm ntawm cov pwm. Cov txheej txheem no yog hu ua dewaxing thiab tawm ntawm cov pwm khoob hauv cov duab ntawm cov qauv siv quav ciab hauv lub plhaub ceramic.
Kauj Ruam 4: Ua kom sov
Tom qab dewaxing, lub plhaub ceramic tau qhuav tag thiab muab tso rau hauv qhov cub kom preheat rau qhov kub ntawm li 1000 degrees Celsius. Cov kauj ruam no tshem tawm cov wax seem thiab hardens lub plhaub ceramic.
Kauj Ruam 5: Ncuav
Tom qab ntawd lub plhaub ceramic yog txav mus rau qhov chaw tso dej thiab ntim nrog cov hlau molten los ntawm lub rooj vag. Cov hlau molten yog nchuav rau hauv pwm ntawm qhov kub ntawm ib ncig ntawm 1,300 degrees Celsius.
Kauj Ruam 6: Txias thiab khov kho
Tom qab pouring, pwm txias thiab cov hlau solidifies, noj cov pwm ntawm cov pwm. Cov txheej txheem no tuaj yeem siv sijhawm nyob qhov twg los ntawm ob peb feeb mus rau ob peb teev, nyob ntawm qhov loj thiab qhov nyuaj ntawm qhov cam khwb cia.
Kauj Ruam 7: Tshem tawm lub plhaub thiab ua tiav
Tom qab cov hlau tau txias thiab solidified, lub plhaub ceramic raug tshem tawm ntawm cov khoom siv hlau. Qhov no yog ua los ntawm kev tawg lub casing kom deb ntawm cov hlau siv rauj los yog txau dej. Tom qab ntawd lub casting yog tiav, uas tej zaum yuav muaj xws li sib tsoo, polishing, machining thiab sib dhos.

Txheej txheem yam ntxwv ntawm kev nqis peev Casting
(1) Lub casting muaj qhov raug siab qhov tseeb (CT4-6 qib), qis nto roughness (Ra1.6-3.2μm), thiab cov duab nyuaj;
(2) Cov phab ntsa casting yog nyias (0.5mm), lub teeb yuag (ob peb grams), nqaim zawj, qhov zoo, thiab nrum tus qauv zoo nkauj;
(3) Nws tuaj yeem hloov qhov chaw nrog cov txheej txheem nyuaj xws li cov khoom sib dhos thiab cov khoom siv welded, txo qhov hnyav thiab kev ua haujlwm ntawm qhov chaw;
(4) Nws tuaj yeem ua tau precision casting ntawm ntau yam alloys, Complex castings, xws li superalloy castings xws li cav hniav;
(5) Tsis muaj kev txwv rau cov khoom tsim tawm, uas tuaj yeem ua ib thooj lossis batch.

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