|
|
发表于 2016-10-18 08:13:09
|
显示全部楼层
那英文意思 就是 认为分层可能有害的情况下。。。。
For openings, cut edges in base materials in all thicknesses shall be examined for discontinuities as specified below using the magnetic particle method or liquid penetrant method in accordance with Part 7.Additional testing of materials prior to fabrication should be considered by the purchaser (i.e. ultrasonic testing of plate to SA-435 or SA-578, and of forgings to SA-388) for those services in which laminar discontinuities may be harmful. |
|
|