Kev sim tshuaj rau cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov leeg tsis sib haum
Nov 29, 2017
Cov tshuaj lom neeg muaj pes tsawg ntawm cov leeg tsis sib haum, xws li 10, 15, 20, 25, 30, 35, 40, 45 thiab 50th, uas yog cov khoom siv tshuaj thiab cov khoom siv sib xyaws, yuav tsum ua raws li cov cai gb / t699-88. Txoj hlua ciav hlau yuav tsum raug kuaj xyuas raws li cov qauv hauv cov ntawv cog lus. Cov tshuaj muaj kuab ntawm 09MnV, 16Mn thiab 15MnV steel yuav tsum ua raws li cov cai GB1591-79.
Txoj kev ntsuam xyuas tshwj xeeb xa mus rau seem ntawm cov seem ntawm gb223-84 "Hlau thiab Alloy chemical analysis method". Analysis tsom xam Siv cov lus qhia gb222-84 "kev tso cai sib txawv ntawm cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hnoos qoob loo thiab cov khoom tiav rau tshuaj lom neeg ntawm cov hlau".
