Cov yeeb ncuab uas tsis muaj zog-tiv taus yog ib feem ntawm cov twj kho tshuab thiab ua si ib qho tseem ceeb heev. Yog hais tias hnav tsis tau-hnyav rau txhua qhov taw tes rau hauv cov txheej txheem ntau lawm, yuav cuam tshuam cov yeeb yaj kiab-resistant castings. Pib hnub no ua qauv hnyav ua qauv hnyav.
1. Casting: Cov khoom siv raw yog poured rau hauv ib qho hluav taws xob hluav taws xob thiab yaj. Thaum cov hlau ntsiab ntxiv lawm, qhov kub thiab txias yog mus txog 1600 degrees, thiab cov kua sib tov yog poured rau hauv lub plhaub pwm thiab txias.
2. Tshem tawm cov xuab zeb saum nplaim ntawm cov nplaum uas tiv taus.
3, siv cov khoom siv los txiav cov yeeb yaj kiab-resistant.
4, kev sib tsoo, kev sib tsoo uas tsis muaj zog-tiv taus ntawm ntu ntawm qhov chaw pov tseg tsis yog los yog tsis huv.
5, kev kho tshav kub, tab sis kuj tseem ceeb tshaj plaws, yuav tsum tau kub hnyiab, txias, tso zis thiab npau taws, ua rau lub cev, nitriding thiab lwm cov kauj ruam.
6, kos, nrog ntsuas los ntsuas cov castings uas tsis muaj kev tiv taus hnyav, tsim nyog.
7, ntim, tom qab kev tshuaj xyuas cov khoom tsim nyog tau muab ntim, xa, thiab kev muag khoom qub.
