Bofokoli ba ho lahla ba tšepe ea tšepe e bonolo le mokhoa oa ho thibela

Sekoli sa pele: Ha e khone ho tšela

Likarolo: sebopeho sa ho lahla ha sea phethahala, metse le likhutlo li pota-potile, tse atisang ho bonoa likarolong tse tšesaane tsa marako.

Mabaka:

1. Mokelikeli oa tšepe oksijene o tebile, khabone le silicon li tlase, li-sulphur li phahame;

2. Mocheso o fokolang oa ho tšolla, lebelo le liehang la ho tšolla kapa ho tšolloa ha nakoana.

Mekhoa ea ho thibela:

1. Hlahloba hore na molumo oa moea o moholo haholo;

2. Eketsa coke ea relay, fetola bophahamo ba coke e tlase;

3. Ntlafatsa mocheso oa ho lahla le lebelo la ho lahla, 'me u se ke ua khaola phallo nakong ea ho lahla.

Bothata ba bobeli: shrinkage hlephile

Likarolo: bokaholimo ba li-pores bo thata ebile bo sa lekane, bo na le likristale tsa dendritic, li-pores tse tsepamisitsoeng bakeng sa shrinkage, tse nyane tse qhalakantsoeng bakeng sa shrinkage, tse atileng haholo ho li-node tse chesang.

Mabaka:

1. Likahare tsa carbon le silicon li tlaase haholo, shrinkage e kholo, ho fepa ha riser ha hoa lekana;

2. Mocheso oa ho tšela o phahame haholo 'me ho fokotseha ho hoholo;

3, riser molala e telele haholo, karolo e nyenyane haholo;

4, mocheso oa ho lahla o tlaase haholo, metsi a fokolang a tšepe ea metsi, a amang ho fepa;

Mekhoa ea ho thibela:

1. Laola motsoako oa lik'hemik'hale oa liquefaction tsa tšepe ho thibela ho fokotseha ha carbon le silicon;

2. Laola ka thata-thata mocheso o tsholohang;

3, e utloahalang moralo riser, haeba ho hlokahala, ka tšepe e batang, ho etsa bonnete ba tatellano ea solidification;

4. Eketsa litaba tsa bismuth ka nepo.

Bothata ba boraro: ho phatloha ho chesang, ho phatloha ho batang

Likarolo: Hot crack e robeha haufi le moeli oa lijo-thollo mochesong o phahameng, e nang le sebopeho se tortuous le 'mala oa oxidizing. Hangata Crack e chesang ka hare e lula hammoho le shrinkage cavity.

Leqhoa le batang le hlaha ka mocheso o tlase, ho robeha ha transgranular, sebopeho se bataletseng, khanya ea tšepe kapa bokaholimo bo nang le oxidized hanyane.

Mabaka:

1, shrinkage ea ts'ebetso ea ho tiisa e koetsoe;

2, likahare tsa khabone ka tšepe ea metsi li tlase haholo, sebabole se phahame haholo, 'me mocheso o tšollang o phahame haholo;

3, khase ea metsi ea tšepe e kholo;

4. Likarolo tse rarahaneng li tletse kapele haholo.

Mekhoa ea ho thibela:

1, ntlafatsa mofuta, motheo oa tumello;

2. Karolo e boima ea carbon ha ea lokela ho ba ka tlase ho 2.3%;

3, laola sebabole;

4, cupola ho ontong ka botlalo, bophahamo ba moea bo ke ke ba ba kholo haholo;

5, qoba ho lahlela mocheso o phahameng haholo, le ho ntlafatsa lebelo la tsidifatso, e le hore ho hloekisa lijo-thollo;

6. Laola mocheso oa ho paka.