焊接修复评定

ffecyby

由于尺寸的偏差而进行堆焊修复的评定应该按ASME怎么做

niat8888

这是build up就普通的对接评定

build‐up of base metal/restoration of base metal thickness:
this is the application of a weld material to a base metal so
as to restore the design thickness and/or structural integrity.
This build‐up may be with a chemistry different from
the base metal chemistry which has been qualified via a
standard butt welded test coupon. Also, may be called
base metal repair or buildup.

lyklzy

由于尺寸的偏差而进行堆焊修复的评定应该按ASME怎么做？
应该按 2015 ASME BPVC Section VIII-1 第 144 页 UW-42 SURFACE WELD METAL BUILDUP
(a) Construction in which deposits of weld metal are applied to the surface of base metal for the purpose of restoring the thickness of the base metal for strength consideration; or modifying the configuration of weld joints in order to provide the tapered transition requirements of UW-9(c) and UW-33(b) shall be performed in accordance with the rules in (b) and (c).
(b) Procedure Qualification. A butt welding procedure qualification in accordance with provisions of Section IX shall be performed for the thickness of weld metal deposited, prior to production welding.
(c) Examination Requirements
   (1) All weld metal buildup shall be examined over the full surface of the deposit by either magnetic particle examination to the requirements of Mandatory Appendix 6, or by liquid penetrant       examination to the requirements of Mandatory Appendix 8.
   (2) When such surface weld metal buildup is used in welded joints which require full or spot radiographic examination, the weld metal buildup shall be included in the examination.

smysmiley

对接焊评