Cov qauv ntawm ib feem yuav tsum tsis tsuas yog pab kom qhov zoo ntawm cov casting tab sis kuj coj mus rau hauv tus account qhov yooj yim ntawm kev khiav hauj lwm xws li qauv ua, molding, core ua, thiab tu. Qhov no ua kom yooj yim cov txheej txheem casting, txhim kho kev tsim khoom, thiab txo tus nqi ntawm cov casting. Cov kev cai tseem ceeb yog raws li nram no:
1. Txhim kho cov qauv saum npoo ntawm cov casting kom yooj yim kos duab thiab molding
Tsim tus thawj coj, flanges, thiab tav rau ntawm phab ntsa casting tsim nyog kom tsis txhob muaj kev cuam tshuam. Txwv tsis pub, cov xuab zeb ntxiv yuav tsum tau muab ntxiv thaum lub tshuab molding, los yog thaum lub sij hawm phau ntawv molding, cov thawj coj thiab cov tav uas cuam tshuam cov qauv kos duab yuav tsum tau ua rau hauv cov xoob. Ob qhov xwm txheej ua rau nce kev ua haujlwm ntawm molding (cov tub ntxhais ua) thiab cov qauv tsim kom sib txawv. Kev npaj ntawm ribs yuav tsum yooj yim rau kev kos duab; ribs uas tuaj yeem ua rau perpendicular rau txoj kab sib cais yuav tsum tau tsim raws li qhov no. Ntawm cov khoom siv tsis yog-, cov phab ntsa sab hauv thiab sab nrauv ntawm cov casting perpendicular mus rau txoj kab sib faib yuav tsum muaj cov kaum sab xis los pab txhawb kev kos duab. Lub kaum sab xis tsim nyog yuav tsum tau tsim raws li cov kev taw qhia ntawm cov qauv kos duab (piv txwv li, perpendicular rau txoj kab sib faib). Rau cov thawj coj uas nyob rau ntawm txoj kab sib faib thiab nyob ze rau ntawm lub flange, lawv yuav tsum tau txuas nrog lub flange los pab txhawb kev tshem tawm cov khoom xoob thiab yooj yim qauv kos duab thaum lub sij hawm molding.
2. Txhim kho cov kab noj hniav sab hauv ntawm cov casting kom txo cov xuab zeb cores
Cov kab noj hniav sab hauv ntawm lub casting feem ntau yuav tsum tau tsim los ntawm cov xuab zeb cores, uas ua rau cov sij hawm ua hauj lwm rau cov tub ntxhais ua, cov cuab yeej xav tau, cov nqi tsim khoom, thiab kev ua haujlwm tu. Cov qauv tsim tsis tsim nyog ntawm cov tav, tus thawj coj, thiab flanges hauv cov kab noj hniav feem ntau yog qhov laj thawj tseem ceeb rau cov xuab zeb cores ntau ntxiv thiab cov txheej txheem nyuaj.
3. Ua kom yooj yim lossis txo cov kab sib faib
Yog hais tias ib tug casting txais cov qauv uas muaj nyob rau hauv daim duab 2-18a, yuav tsum tau siv ib tug non-planar parting kab txheej txheem (kho qhov chaw seem) yuav tsum tau siv, nce tus nqi ntawm cov qauv thiab pwm phaj manufacturing. Daim duab 2-18b qhia txog kev txhim kho casting qauv uas tso cai rau molding siv ib qho yooj yim central ca parting kab.
Lub tes tsho casting qauv qhia nyob rau hauv daim duab 2-19a yuav tsum tau peb-moulding nrog ob txoj kab sib cais, ua rau cov txheej txheem molding nyuaj, nyuaj rau automate, thiab ua rau cov khoom siv qis. Daim duab 2-19b qhia txog kev txhim kho lub tes tsho casting qauv uas yuav tsum tau tsuas yog ib txoj kab sib faib thiab ob feem molding, ua kom yooj yim cov txheej txheem molding, txhim kho molding efficiency, thiab ua kom nws yooj yim mus cuag automated ntau lawm.
4. Ua kom yooj yim kho thiab tso tawm ntawm cov xuab zeb cores
Daim duab 2-20a qhia txog tus qauv tsim ntawm kev txhawb nqa ncej casting. Xuab zeb core Tsis yog . 2 yog cantilevered, ua qhov chaw thiab kho nyuaj; Cov kev txhawb nqa tseem ceeb tej zaum yuav xav tau los kho, thiab qhov cua tsis zoo.
Daim duab 2-20b qhia txog kev txhim kho cov qauv. Lub cantilevered core No. 2 thiab lub qhov taub qhov tseem ceeb Tsis yog . 1 tau muab tso rau hauv ib qho tseem ceeb. Cov teeb meem xws li core positioning, kho, thiab venting yog daws, ua kom nws yooj yim dua los xyuas kom meej qhov zoo ntawm casting.
Rau nyias-walled castings thiab castings raug cua siab los yog hydraulic siab, kev siv cov tub ntxhais kev txhawb nqa feem ntau tsis xav tau. Yog tias cov qauv tsis tuaj yeem hloov pauv, cov txheej txheem qhov tuaj yeem raug tsim los ntawm cov casting kom txhawb cov ntsiab lus ntawm cov ntawv luam tawm, raws li pom hauv daim duab 2-21. Los ntawm kev ntxiv cov txheej txheem qhov rau ntawm qhov piston, ob lub xuab zeb cores tuaj yeem kho tau zoo dua, kom ntseeg tau tias lawv tsis hloov pauv thaum lub sij hawm nchuav thiab tswj qhov tseeb qhov tseeb ntawm cov kab noj hniav.
5. Txo qhov ua haujlwm ntawm kev ua haujlwm ntawm casting
Casting tu muaj xws li kev khiav hauj lwm xws li tshem tawm risers thiab flash, tu residual xuab zeb los ntawm lub casting kab noj hniav, thiab nto blasting. Piv nrog rau cov txheej txheem molding thiab cov txheej txheem tseem ceeb, cov txheej txheem ntawm kev tu tshuab yog qhov tsawg, suav nrog kev ua haujlwm tseem ceeb thiab kev ua haujlwm hnyav. Yog li ntawd, kev saib xyuas yuav tsum tau them rau txo qhov kev ua haujlwm tu thaum lub sij hawm casting qauv tsim.
Cov qauv uas txo tus naj npawb ntawm cov kab sib cais, tsim cov qhov tu, txo cov kev ntxhov siab casting, thiab tiv thaiv kev deformation yog txhua yam zoo rau kev ntxuav casting. Tsis tas li ntawd, qhov tsim ntawm lub casting contour yuav tsum pab txhawb kev tu, cov qauv uas ua rau nws yooj yim dua los txiav cov risers thiab txo cov risers, thiab pab txhawb kev tshem tawm cov xuab zeb cores. Piv txwv li, cov cam khwb cia hlau vaj tse nyob rau hauv daim duab 2-22 muaj kev txhim kho cov qauv uas pab txhawb kev txiav thiab tshem tawm cov risers. Rau cov casting nyob rau hauv daim duab 2-23, cov qauv txhim kho ua rau txiav risers thiab tshem tawm cov cores yooj yim dua, txo cov kev ua haujlwm tu.
6. Sib cais Casting thiab Combined Casting
Loj thiab complex castings yuav muab faib ua ob peb yam yooj yim castings, uas yog ces koom ua ke los ntawm vuam los yog bolting tom qab casting. Cov txheej txheem no yog hu ua cais casting. Txoj kev no tuaj yeem ua kom yooj yim rau cov txheej txheem casting, ua rau cov tuam txhab tsim cov castings loj thaum muaj kev txwv los ntawm cov khoom xws li melting peev thiab hoisting / thauj mus los.
Contrary to cais casting, txhim kho ntau lawm efficiency thiab txo nqi casting, ntau me me, yooj yim qhov chaw xws li me me bushings yuav txuas mus rau hauv ib tug ntev casting dawb paug. Qhov no pab txhawb kev tsim khoom thiab machining, txhim kho cov khoom zoo. Cov txheej txheem no yog hu ua kev sib xyaw ua ke.
