Kusanthula kwa zinthu zolephera za kufa kwa kufa kumafa

Mitundu yayikulu ya kulephera kwa nkhungu zoponya kufa ndi monga kung'amba, kusweka, kung'ambika, kuvala, kukokoloka, ndi zina zambiri.

1. Zowonongeka zokha za zinthu zopangira nkhungu

Ubwino wa zinthu za nkhungu zoponya kufa zimakhudza kwambiri moyo wa nkhungu zoponyera kufa.The inclusions mu nkhungu zinthu ndi pachimake cha nkhungu ming'alu.Pamene kukula kwa ma inclusions kumaposa kukula kwakukulu, mphamvu ya kutopa ya nkhungu zoponyera kufa imachepa ndi kuwonjezeka kwa tinthu tating'onoting'ono tomwe timapanga.Kuchepa kwa mphamvu ya kutopa kumayenderana mwachindunji ndi kukula kwa cubic kwa tinthu tating'onoting'ono.

Panthawi yoponyera kufa, nkhungu zoponyera kufa zimasinthana pakati pa kuzizira kofulumira ndi kutentha kofulumira, komwe kumakonda kusweka, kusweka, ndi zochitika zina.Choncho, posankha zipangizo za nkhungu, kuganizira mozama kuyenera kuperekedwa ku zinthu monga kukana kuzizira ndi kutopa kotentha, kuzizira ndi kutentha, komanso kulimba.

2. Kupanikizika kotsalira

Mikhalidwe yogwiritsira ntchito nkhungu zoponya kufa ndizovuta kwambiri.Panthawi yoponyera kufa, madzi achitsulo amalowa mu nkhungu, yomwe imachepetsedwa ndi danga mkati mwa mtsempha ndipo imapanga mphamvu yolimba pakona ya concave ya patsekeke;Kutentha kwa nkhungu kumawonjezeka pang'onopang'ono chifukwa cha kutentha kwa chitsulo chosungunuka, ndipo nkhungu imakula chifukwa cha kutentha, zomwe zimapangitsa kuti pakhale kupanikizika pamwamba pa nkhungu;Pambuyo poponyedwa, nkhunguyo imagonjetsedwa ndi kuzizira, kuchititsa kuti shrinkage iwonongeke komanso imatulutsa kupsinjika maganizo;Chikombole chakufa chimakhala ndi mphamvu ya kupanikizika kophatikizana kuchokera mkati ndi kunja kwa nkhungu, ndipo mphamvu zingapo zimagwirizana ndikudziunjikira, zomwe zimatsogolera ku ming'alu ndi kuzama kwa nkhungu.

3. Mapangidwe apangidwe osayenerera

Mapangidwe osalongosoka a ma castings amatha kukhudza mwachindunji moyo wautumiki wa nkhungu zoponya kufa.

Mwachitsanzo:

① Mapangidwe osalongosoka a mtengo woponyera amatha kukoka pachimake, ndipo ndikosavuta kuyambitsa zokanda mukatenga mbali pambuyo potsegula nkhungu;

② Mapangidwe osagwirizana ndi ma castings sikuti amangopangitsa kuti makulidwe a makoma apangidwe, komanso kumapangitsa kukhalapo kwa zigawo zoonda mu nkhungu, zomwe nthawi zambiri zimakhala zoyambitsa ming'alu yoyambirira mu nkhungu.

4. Kugwira ntchito molakwika

Kugwira ntchito kosavomerezeka panthawi yopanga ndi chinthu chofunikira chomwe chimakhudza moyo wautumiki wa nkhungu zoponyera kufa.

Mwachitsanzo:

① Osatenthetsa kapena kutentha kwambiri;Kutentha kwambiri preheating kungakhudze zokolola mphamvu ya zinthu padziko nkhungu patsekeke ndi kuchepetsa matenthedwe kutopa kukana nkhungu;

② kupopera mbewu mankhwalawa mosagwirizana ndi zokutira nkhungu;

③ Kulephera kuyang'ana nthawi zonse ndikusunga zisankho zakufa;

④ Njira yoyika siili yokhazikika.

Fenda Mold |Die Casting Mold