Magnetic-and-powder Method in Diagnostics of Welded Joints in Powered Roof Supports

INNOVATIVE MINING TECHNOLOGIES IMTech 2019 Scientific and Technical Conference

工业技术（总论）

Szweda, S.^1 ; Mikula, J.^2 ; Mikula, S.^3

KOMAG Institute of Mining Technology, 37 Pszczyska, Gliwice

44-101, Poland^1

Silesian University of Technology, Faculty of Mechanical Engineering, 18A Konarskiego, Gliwice

44-100, Poland^2

Silesian University of Technology, Faculty of Mining and Geology, 2 Akademicka, Gliwice

44-100, Poland^3

关键词: Industrial conditions;    Liquid detectors;    Longwall panel;    Magnetic inductors;    Technical conditions;    Technical diagnosis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/545/1/012015/pdf
DOI  :  10.1088/1757-899X/545/1/012015

学科分类：工业工程学

来源: IOP

【 摘 要 】

A possibility of diagnosing the welded joints in the components of powered roof supports used in longwall panels of hard coal mines is analysed. It was found that the magnetic-And-powder method is most useful for that purpose. Devices which facilitate assessment of technical condition of welded joints in canopies and bases are discussed. Design and principles of operation of welded joints liquid detector adapted for operation in industrial conditions are presented. Two ideas of a magnetic inductor for technical diagnosis of powered roof support components by the magnetic-And-powder method is discussed.