Qhov nyiaj pab txo qis no yog hu ua Negative Shrinkage Allowance. Li no cov nyiaj shrinkage muab rau Grey cam khwb cia hlauyog qhov tsis zoo Shrinkage Allowance. … Nws yog vim grey-cam khwb cia hlau expands thaum solidification tshwm sim vim molecular kev npaj.
Yuav ua li cas cov hlau twg muaj qhov tsawg tshaj plaws shrinkage pub?
Aluminium yog muaj kua loj tshaj plaws thiab tag nrho cov kua & cov khoom shrinkage yog max rau steel.
Vim li cas co nyiaj tsis zoo?
Ib qho nyiaj tsis zoo yog muab rau qhov no. … Piav qhia: Hauv rapping lossis co nyiaj, tus qauv raug tshem tawm ntawm cov pwm thiab nws tau ripped lossis shaken, thiaj li tso nws tawm ntawm cov xuab zeb uas nyob ib sab. Vim li no, tej zaum yuav muaj me ntsis nce qhov loj ntawm cov pwm kab noj hniav.
Tus nqi qis qis yog dab tsi?
Nws tau txhais hauv DIN EN 12890 thiab qhia txog qhov sib txawv ntawm qhov ntev ntawm cov cam khwb cia ntawm casting pwm thiab casting. Nws nyob ntawm cov khoom siv casting, kev tsim kho thiab kev ruaj ntseg ntawm cov pwm thaum lub sij hawm solidification thiab shrinkage. …
Yuav ua li cas cov nyiaj shrinkage xam?
Xaiv qhov qis qis tom qab txiav txim qhov loj me thiab qhov kawg. Tshem tawm qhov kawg ntawm qhov loj me los ntawm qhov loj me los nrhiav tus nqi ntawm qhov shrinkage. … Multiply the shrinkage rate by 100 to nrhiav qhov shrinkage raws li feem pua. Hauv qhov piv txwv, muab 0.25 los ntawm 100 rautau 25 feem pua.
