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发表于 2013-5-11 23:21:40
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本帖最后由 lyklzy 于 2013-5-12 09:20 编辑
UW-50 NONDESTRUCTIVE EXAMINATION OF WELDS ON PNEUMATICALLY
TESTED VESSELS
On welded pressure vessels to be pneumatically tested in accordance with UG-100,
the full length of the following welds shall be examined (Note 7) before the pneumatic test is
performed, for the purpose of detecting cracks:
(a) all welds around openings;
(b) all attachment welds, including welds attaching nonpressure parts to pressure
parts, having a throat thickness greater than 1⁄4 in. (6 mm).
(Note 7) Examination shall be by magnetic particle or liquid penetrant methods when the
material is ferromagnetic, or by the liquid penetrant method when the material is nonmagnetic
不是很明确的么:
1) 目的:检测可能存在的裂纹;
2)范围:a) 围绕开孔的所有焊缝------全长;
b) 腰高大于 6mm 的连接件焊缝(指人孔补强圈,支座的复板等)------ 全长。
3)方法:a) MT,PT------ 铁磁材料;
b) PT ------ 非磁性材料(有色金属)。
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