FLAW DETECTION AND RESISTANCE MEASUREMENT OF UNDERGROUND PIPELINE COATINGS.

被引：0
|
作者：
Takiguchi, Shuichiro
Hachisu, Yoshio
Ikeda, Shintaro
Seino, Kiyomi
机构：
来源：
Boshoku Gijutsu/Corrosion Engineering | 1973年 / 22卷 / 09期
关键词：
CORROSION PROTECTION; CATHODIC;
D O I：
10.3323/jcorr1954.22.9_383
中图分类号：
学科分类号：
摘要：
Methods of locating coating flaws and measuring insulating resistance of buried pipelines have been compared using a model pipeline which had artificial flaws. The coating systems were polyethylene and reinforced asphalt. The results show that a pin type electrode method is more sensitive than the Pearson type holiday detector in locating coating flaws. Among several procedures used for the resistance measurements, the voltage drop method is most reliable.
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页码：383 / 392
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