从3个锻件表面0.1mm处,0℃、120℃进行1次检测,共6个测点。从1个锻件表面2mm处,每60℃进行1次检测,共6个测点。
Conduct one test at 0 ℃ and 120 ℃ from 0.1mm on the surface of three forgings, with a total of 6 test points. A total of 6 measuring points shall be tested every 60 ℃ from 2mm on the surface of a forging.