Tus qauv yuav tsum ua cov kev ua txhaum ntawm cov duab txuas yog tsim nyog. Qhov porosity ntawm lub davhlau ya nyob hlau caij xaim xaim hluav taws xob hais txog qhov sib piv ntawm thaj chaw tsis muaj tseeb ntawmQhov sib txuas ntawm kev sib txuas ntawm lub davhlau ya nyob twg rau tag nrho cheeb tsam, uas yog qhov tseem ceeb rau kev nyab xeeb thiab kev ntseeg tau ntawm lub davhlau ya nyob twg. Porosity dhau yuav ua rau muaj kev sib tiv tauj tsis zoo, nce kev tiv thaiv thiab kub, yog li cuam tshuam qhov ruaj khov thiab kev nyab xeeb ntawm kev sib txuas hluav taws xob. Yog li ntawd, cov kws ntsuas kev sib tw ntawm cov duab ntaus nkauj yog qhov yuav tsum tau rau qhov chaw pom zoo thiab tshuaj xyuas. Metallographic piv txwv txiav, metallographic piv txwv sib tsoo thiab siv lub ntsuas phoo, thiab tom qab ntawd kos duab duab yog qhov xav tau los ntawm metalographic tsom iav rau kev tshuaj xyuas qhov chaw nres tsheb.
Cov Qauv Npaj Npaj Ua Qauv: Cov qauv uas tau kuaj xyuas (cov khoom siv sib dhos kom zoo nkauj, thiab ua kom zoo nkauj hauv lub davhlau ya nyob twg Thiab tom qab ntawd coure corroded thiab muab tso rau hauv ib lub tsom iav tsom rau kev tshuaj xyuas thiab tsom xam.
Lub sijhawm Post: Apr-01-2025
