管道环向对接焊接接头超声检测用对比试块讨论.pdfVIP

, , ( 四川正吉油气田工程建设检测有限公司, 成都 610021) : JB/ T 4730. 3 2005 标准对环向焊接对接接头超声检测只设计 管道外径在 159 mm 以下的GS 系列对比试块, 而对钢管外径 159 mm 的管道只提出 对比试块有关要求在 分析 这些要求的基础上, 归纳出设计对比试块的3 个考虑步骤, 并按照单 一管道以及多种管道规 格超声检测需要和试块系列化需求, 提出 对比试块具体设计方案 : 超声波检测; 对比试块; 曲率半径; 人工反射体 : T G 115. 28 : A : 20 10) 0705 1603 Discussion on Reference Block for Ultrasonic Testing of Circumferential Butt Welding Joint in Tubes ZHANG XueC eng, LEI Xiao, YANG LongRong ( Sichuan Zh ngji T sting Co Ltd of Constructing Engin ring of Oil and Gas fi ld, Ch ngdu 6 10021, China) Abstract: According to th standard JB/ T 4730. 3 2005, r f r nc block of GS s ri s for ultrasonic t st ing to girth w lding joint of tub of diam t r b low 159 mm, w as d sign d, and for tub s of diam t r ov r 159 mm, only advanc d r quir m nts on it, how v r , w as n d d. Bas d on th analysis to th s r quir m nts, th d sign of r f r nc block w as conclud d to thr st ps, and a d sign plan of r f r nc block according to singl or many dim nsions of tub s and s ri s of r f r nc block in ult rasonic t sting w as put forw ard. Keywords: U ltrasonic t st ing ; R f r nc block; Radius of curvatur ; Artificial r fl ctor 2 R ∃ W / 4 ( W , SY/ T 4109 2005 ! , , ∀, ) , % JB/ T 4730. 3 2005 ! , R W 2 / 4, 3 : ∀, ( CSKA) , : 159 mm , , , JB/ T 4730. 3 2005 6. 1 , 4 mm, 32~ 159 mm , GS , JB/ T 1 JB/ T 4730. 3 4730. 3 2005 5. 1. 3. 4 # , 6. 1 4~ 6 mm, : 159 mm