
seramic mould casting

seramic moulding ennum avyakthamaayi ariyappedunna seramic mould casting, seramics pooppal metteeriyalaayi upayogikkunna loha casting prakriyakalude oru koottamaanu. plaasttar mould castinginteyum investment castinginteyum samyojanamaanithu. rund tharam seramic mould casting undu "shhaa prosess", "unicast prosess".
eee casting prakriyakal saadhaaranayaayi tooling nirmmikkaan upayogikkunnu, prathyekichu drope forging dye, ennaal injection moulding dye, dye casting dye, glass molds, stamping dye, extrusion dye ennivayum.
shaav prakriya.
dhii' ennum ariyappedunna 'dhii', refractory aggregate, hydrolysed ethyl silikkett, alcohol, jelling ejantu ennivayude misritham upayogichu oru pooppal srishtikkunnu. eee slurry misritham cheruthaayi taper cheytha flaskilum punarupayogikkaavunna paattenilum ("i".iii."pooppal roopappeduthaan upayogikkunna inam) upayogikkunnu. slurry eathaandu udan thanne oru rabbari avasthayilekku (vulcanised rabbarinte sthiratha) kadinamaakunnu. thudarnnu flask paattenum neekkam cheiyunnu. thudarnnu pooppal kathikkaan oru torch upayogikkunnu, ithu mikka volaattailukalum kathikkaanum seramic microcraasukal (microscopic villalukal) roopappedaanum kaaranamaakunnu. eee villalukal pradhaanamaan, kaaranam lohathiloode ozhukunnathu thadayumbol vaathakangal rakshappedaan avaa anuvadikkunnu; avaa kharavalkkaranathilum churungalilum taapa vipuleekaranavum sankochavum eluppamaakkunnu. pollalettathinushesham, bakkiyulla volaattailukal neekkam cheiyunnathinaayi pooppal chuttedukkunnu. loham ozhikkunnathinu munbu, churukkam niyantrikkaan pooppal munkootty choodaakkunnu.
unicast prakriya.
unicast prakriya" shhaa prakriyayumaayi valare saamyamullathaan, athinu pooppal kathikkukayum thudarnnu oru choolayil sukhappeduthukayum cheyyendathilla. pakaram, pooppal bhaagikamaayi sukhappeduthukayum paatten neekkam cheyyaanum ekadesham vedivachu poornnamaayum sukhappeduthaanum kazhiyum. kuranja dravanaankamulla oru loham eriyukayaanengil, "pacha avastha" yill (theepidikkaattha) pooppalinu mathiyaya sakthiyullathinaal theepiduttham ozhivakkaam.
savisheshathakal.
seramic pooppalkalude pradhana gunangal ivayaanu punarupayogikkaavunna paatten (pooppalinte aakruthi srishtikkaan upayogikkunna inam), mikacha uparithala finish, closs dimensional tolerance, nerttha cross sekshanukal, sankeernamaaya aakruthikal enniva kaast cheyyaan kazhiyum. andarkattukalkkum kaast cheyyaan budhimuttulla mattu savisheshathakalkkum, paatteninte oru bhagam oru staanderd paattenumaayi samyojippichu mezhukil ninnu nirmmikkam; pradhaanamaayum nikshepavum seramic mould casting saankethikavidyakalum orumichu upayogikkunnu. pradhana poraaymakal ivayaanu cheruthum idatharavumaaya ulppaadana pravarthanangalkku maathram chelavu kuranjathum seramic veendum upayogikkaavunnathallathu. ferres, uyarnna thaapanilayilulla noonn-ferres enniva saadhaaranayaayi eee prakriyakaliloode nirmmikkunnu; mattu vasthukkalil ulppedunnu aluminium, chembu, magneeshyam, titanium, sink aloykal.
100 gram muthal aayirakkanakkin kilogram (3.5 auns muthal niravadhi tonn vare) vareyaanu bharaparidhi. cross sekshanukal paramavadhi nerthathaanu, uyarnna paridiyonnumilla. aadyathe 25 millimeteril 0.1 millimeterum (aadya injinu <aii. dii. 1> inch) adhika millimeteril <aii. dii. 2> millimeterum (oro adhika injinum <aii. dii. 2> inch) aanu saadhaarana sahishnutha. saadhaaranayaayi 1° draaft aavasyamaanu. saadhaarana uparithala finish 2-4 ummu (<aii. dii. 1> yuu. aii. enn) aarr. emm. ezz aanu.

