Casting shape design ncaj qha cuam tshuam rau kev tsim cov khoom zoo, kev ua tau zoo, thiab cov nqi ua tom qab ntawm castings. Kev tsim qauv tsim nyog tuaj yeem txo qhov tsis xws luag xws li porosity, shrinkage, tawg, thiab deformation, txhim kho cov txiaj ntsig. Cov hauv qab no yog cov kev txiav txim siab tseem ceeb rau kev tsim qauv casting, ua kom tiav los ntawm kev tsim qhov loj:
Sab nrauv Shape Design: Simplify cov duab kom yooj yim demolding
Sib zog ua kom yooj yim rau sab nraud. Tsis txhob cuam tshuam qhov chaw nkhaus, qhov chaw concave, thiab cov contours complex. Txo qhov kev siv ntawm qhov sib cais thiab cov cores kom txo qhov nyuaj ntawm molding.
Txo tus naj npawb ntawm qhov chaw seem. Kev sib cais tsawg dua ua rau cov pwm sib dhos ntau dua thiab txo qhov tsis xws luag xws li misalignment thiab flash.
Teem lub kaum sab xis ntawm cov txheej txheem (pwm lub kaum sab xis). Tsis yog- cov chaw ua haujlwm ua haujlwm perpendicular mus rau qhov chaw sib cais yuav tsum tau tsim nrog cov qauv tsim qauv kom yooj yim tshem tawm pwm thiab tiv thaiv cov xuab zeb pwm puas.
Tsis txhob loj thiab nyias kab rov tav. Cov dav hlau loj kab rov tav tau yooj yim ci los ntawm siab - kub molten hlau rau lub sijhawm ntev thaum lub sij hawm nchuav, ua rau muaj qhov tsis xws luag xws li xuab zeb inclusions thiab porosity. Nws raug nquahu kom tsim lawv raws li inclined lossis corrugated nto.
Teem casting fillets. Tag nrho cov ces kaum yuav tsum tau muab sib dhos kom tsis txhob muaj kev ntxhov siab, txhim kho hlau fluidity, thiab tiv thaiv kub tawg.
Casting Fillets: Txhua lub ces kaum yuav tsum tau muab sib dhos kom tsis txhob muaj kev ntxhov siab, txhim kho hlau fluidity, thiab tiv thaiv kub tawg.
Phab ntsa Thickness Design: Kev hloov pauv hloov pauv los tiv thaiv qhov tsis xws luag
Phab ntsa thickness yuav tsum sib xws li qhov ua tau. Cov phab ntsa tuab tsis sib xws ua rau cov cua txias tsis sib xws, ua rau cov kab noj hniav shrinkage, porosity, thiab kev ntxhov siab sab hauv, ua rau deformation lossis tawg.
Kev hloov pauv ntawm Thickness Hloov: Siv cov kev hloov maj mam ntawm cov thickness junctions kom tsis txhob muaj kev hloov pauv sai thiab txo qhov kub.
Sab Hauv Phab Ntsa Thickness yuav tsum me ntsis me dua li Sab Nrauv Phab Ntsa Thickness: Sab hauv phab ntsa txias dua maj mam; ntau thickness tuaj yeem ua rau shrinkage tawg ntawm qhov sib koom ua ke. Feem ntau, lub thickness yuav tsum yog 0.6 txog 0.7 npaug ntawm cov phab ntsa sab nrauv.
Tsis txhob Thinness ntau dhau los yog Thickness: Ntau dhau ntawm thinness tuaj yeem ua rau tsis tiav puv thiab txias kaw; ntau thickness yuav ua rau shrinkage porosity thiab coarse nplej. Qhov tshwj xeeb ntawm phab ntsa tuab yuav tsum tau txiav txim siab raws li hom alloy thiab qhov ntev casting.
