Lost mold kasting proses rana disain prinsipol
Long rot bilong stopim taip bilong ges i gat ges long taim bilong kapsaitim, transves kapsaitim senel i mas gat inap spes bilong mekim ges rum, na kros-seksen eria bilong transves kapsaitim senel i mas kamap bikpela.
Disain prinsipel bilong kapsaitim insait: bikpela na sotpela tiknes. Wok bilong geit bilong kapsaitim insait em long putim metal wara i go insait long taip kaviti.
Disain bilong lus dai kasting i mas lukluk gut long fopela link:
1) Posisen bilong katim bilong maus i kapsait insait i mas stret;
2) I no gat tumas hat lus long maus i kapsait insait;
3) Katim rot bilong geit bilong kapsaitim insait i mas stret wantaim negatif presa fil;
4) Kros-seksen eria bilong insait senel i no inap long pasim. Olsem na rekwaemen bilong kapsaitim insait: waid na sotpela tiknes.
Tradisenel sand kast likid metal filing kaviti i save kasem smut filling we i no gat turbulens. From we lukluk i flat (horisontal klasifikesen), distens blong rise i no hae, mo tempereja difrens bitwin not not i no bigwan.
Dispela dai kasting i lus i narapela kain tru long pasin bilong tromoi san i go daun bilong ol tumbuna i stap long fom, na disain bilong geit insait i mas tingim objektiv eksistens bilong fom dai. Taim ol i wok long stadi long influens bilong fom mod gasifikesen mak long wara i pulap long wara, em i mas stadi tu long strong bilong wara i pulap long ol samting i stap insait long foam mol i no inap long stap longwe . together. The endothermal decomposition of foam mold will affect the change of limited heat and temperature carried by liquid metal, affect the flow form in the process of liquid metal filling, and then affect the thermal field distribution and solidification process. Therefore, accurately predicting the flow field and thermal field of liquid metal filling type and effectively guidance and control are the key to prevent and eliminate the defects of shrinkage, shrinkage and cold seperesen.
Lois na yusim dispela temperatja na het long proses bilong fluid metal filling i gat strong impakt long shape, spid na disaprim bilong foam die. Olsem na, em i kelim (key) long prevent na rausim ol defek bilong porosity, carbon precipitation na carbon enhancement long save gut long disaprim karakteristik bilong foam mold na gutpela raitim na regulim disaprim bilong gas mold, inkluding pores, carbon precipitation na carbon enhancement we i kamap bilong gasification process bilong foam mold.
