Sucker rod is an important component of the equipments in oil extraction with perch, and malfunction often occurs for its defects. Over a long period of time, there has been no available, reliable and high-efficient method to inspect the defects in sucker rod in its running and maintenance.
Based on the sufficient research of the sucker rods inspection history and actuality, it analyses the form of defect, and offers design scheme of no-blind testing system with magnetism method, demonstrates th...
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