Thaum siv quav ciab los tsim cov qauv, peev casting tseem hu ua "poob-wax casting." Kev nqis peev casting feem ntau yog tsim cov qauv los ntawm cov khoom siv fusible, txheej txheej nrog ob peb txheej ntawm cov khoom siv refractory los ua lub plhaub, yaj cov qauv thiab tshem tawm ntawm lub plhaub kom tau cov pwm tsis muaj kab sib cais. Tom qab siab - kub hnyiab, cov pwm tuaj yeem ntim nrog xuab zeb thiab nchuav. Vim tias siv quav ciab tau dav siv los tsim cov qauv, peev casting feem ntau hu ua "poob-wax casting."
Alloys uas tuaj yeem tsim siv peev casting muaj xws li carbon steel, alloy steel, tshav kub- alloys resistant, stainless hlau, precision alloys, ruaj hlau nplaum alloys, bearing alloys, tooj liab alloys, aluminium alloys, titanium alloys, thiab ductile hlau.
Kev nqis peev castings feem ntau muaj cov duab nyuaj. Qhov tsawg kawg nkaus txoj kab uas hla ntawm lub qhov uas yuav cam khwb cia yuav ncav cuag 0.5 hli, thiab qhov tsawg kawg nkaus phab ntsa thickness yog 0.3 hli. Hauv kev tsim khoom, cov khoom qub tsim los ntawm ntau qhov chaw tuaj yeem tsim los ua ib chav tsev thiab ncaj qha siv cov peev casting los ntawm kev hloov kho cov qauv ntawm cov khoom. Qhov no txuag lub sij hawm machining thiab kev siv hlau, uas ua rau muaj kev xav tau ntau dua.
Kev nqis peev castings feem ntau hnyav ntawm xoom thiab kaum ntawm Newtons (los ntawm ob peb grams mus rau kaum ntawm kilograms, feem ntau tsis tshaj 25 kilograms). Ua hnyav castings siv peev casting yog heev cumbersome.
Cov txheej txheem kev nqis peev casting yog qhov nyuaj thiab nyuaj rau kev tswj, thiab cov khoom siv thiab cov khoom siv yog kim. Yog li ntawd, nws yog qhov tsim nyog rau kev tsim cov khoom me me nrog cov duab nyuaj, cov kev xav tau siab, lossis cov uas nyuaj rau tshuab, xws li turbine cav hniav.
