Title: Device and method for monitoring core rod of high-speed cold mill for seamless tube
Application Number: 93101320 Application Date: 1993.02.12
Publication Number: 1090798 Publication Date: 1994.08.17
Approval Pub. Date: Granted Pub. Date: 1999.10.20
International Classifi-cation: B21B38/00,G01B7/00
Applicant(s) Name: Huazhong Univ. of Science and Engineering Address: 430074
Inventor(s) Name: Zhao Yingjun, Yang Kechong
Attorney & Agent: YANG WEIGUO
Abstract:
     A monitor unit for seamless tubes on high-speed cold mill is composed of core rod, magnet, probe, electric cable and signal processing system. Two magneto-sensitive elements of non-crystal alloy in probe detects the leakage field of magnet in finished tube and dual-phase clock signals excite magneto-sensitive elements and control output circuit to synchronously inform host with result signal for determining working state of core rod. It features high sensitivity and reliability.
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