Standard Practice for Electromagnetic Examination of Ferromagnetic Steel Wire Rope

Importancia y uso:

5.1 This practice outlines a procedure to standardize an instrument and to use the instrument to examine ferromagnetic wire rope products in which the magnetic flux and magnetic flux leakage methods are used. If properly applied, the magnetic flux method is capable of detecting the presence, location, and magnitude of metal loss from wear, broken wires, and corrosion, and the magnetic flux leakage method is capable of detecting the presence and location of flaws such as broken wires and corrosion pits.

5.2 The instrument's response to the rope's fabrication, installation, and in-service-induced flaws can be significantly different from the instrument's response to artificial flaws such as wire gaps or added wires. For this reason, it is preferable to detect and mark (using set-up standards that represent) real in-service-induced flaws whose characteristics will adversely affect the serviceability of the wire rope.

Subcomité:

E07.07

Referida por:

E0543-21, E0543-21

Volúmen:

03.03

Número ICS:

77.040.20 (Non-destructive testing of metals)

Palabras clave:

electromagnetic examination; flux leakage; local flaws (LF); magnetic flux; magnetic flux leakage; percent loss of metallic cross-sectional area (LMA); rod reference standards; sensor head; wire rope; wire rope reference standard;