高压炉管对接焊缝超声波探伤
Ultra-sonic Detection for Butt Welding Beams of High Pressure Furnece Pipes
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- DOI:
- 作者:
- 韩建荒
Han Jianhuang
- 作者单位:
- 中国石油天然气总公司第八建设公司
- 关键词:
- 超声波检验;焊缝;热力管道;焊接检查
- 摘要:
- 本文参照国内外有关标准、文献,将JB 1152-81标准中的CSK-IA与CSK-ⅡA两个试块合为一体,设计了S试块(基准试块);同时根据小口径炉管对接焊缝超声波探伤的具体情况,制定了以检测根部未焊透为主要途径的探伤方法,即用R试块(参考试块)上的矩形槽来确定未焊透的参考基准;经理论分析与实际验证采用了小晶片、大K值、短前沿、曲率与被探炉管相同或相近的探头。最后用射线探伤方法对超声波探伤进行了验证。
According to the references of domastic and foreign standerds and informations, combining the two somple CSK- I A and CSK-II A of JB 1152-81 into one block, the S sample(a standerd block) are designed. At the same time, the main detection mathod for the lock of pene-tration of root pass are made based on the specific conditions of ultra-sonic detection for the butt welding beams of small diameter furnace pipe. The method is to use the rectangle slot on the R sample as the reference base for determinating the lock of penetration beam. Through the theoritical analysis and practice, the author consider that the detecting head should be small chip, large Kvalue, short front edge and same as or simulor with the curvature of the detected furnace pipe. The reliability of such method has verificated with X-ray detection in local zone.1989,3(3): 18-23 收稿日期：1988-12-22作者简介：作者生于1962年，1983年毕业于大庆石油学院机械制造专业。1988年获取磁粉、渗透探伤和超声波探伤的国家z级资格.现任无损探伤工程师。主要从事X射线底片、探伤报告的审核及专业技术管理工作.参考文献：
(1)美国机械工程师学会(ASME)锅炉压力容器规范第5卷(美国国家标准，1986年版本)。
(2) JB 1152-81《锅炉和钢制压力容器对接焊缝超声波探伤》
(3) GBJ235-82《工业管道工程施工及验收规范》
(4) GBJ236-82《现场设备、工业管道焊缝工程及施工验收规范》
(5) GB 3323-87《钢熔化焊对接接头射线照相质量分级》
(6)《无损探伤》云庆华等编著.劳动出版杜
(7)《超声波探伤》水利电力出版社出版