Standard Impact Test Method for Notched Specimens of Metallic Materials

GB/T229 -2020 cov ntaub ntawv hlau charpy impact test method thiab ASTME23 metallic material notched standard impact test method different and the pendulum impact test yuav tsum xyuam xim rau cov nqe lus nug ntawm daim ntawv thov: GB/T229 -2020 rau kev txiav txim ntawm cov khoom siv hlau hauv charpy impact test absorption energy method. Nws yog tsim rau charpy pendulum kev ntsuam xyuas nyob rau hauv chav tsev kub, siab kub los yog tsawg kub, tab sis tsis suav nrog instrumented tej yam kev kuaj txoj kev. Saib GB/T19748 rau ntu no. Rau kev ntsuas kub hauv chav, qhov ntsuas kub ntawm gbt 229-2020 yog 23 ± 5 degree castme23-18, uas qhia meej txog cov txheej txheem ntawm kev cuam tshuam cov qauv ntawm cov khoom siv hlau siv cov khoom siv charpy (tsuas yog cov nqaj txhawb nqa) thiab Isaac Asimov xeem (cantilever beam). Txoj kev ntsuas no tsis tsim nyog rau kev ntsuas qhov ntsuas kub hauv qab -196 degree C (77K). ASTME 23-18 yog 20 ± 5 ° C ntawm chav tsev kub