NDTnet 1998 Aug, Vol.3 No.8

Abstract

Fig. Inspection of a capstan rope by the INTROS

The safe using of lifting machines depends on the steel wire rope durability. Faults of the ropes like a loss of the cross-sectional area, wire and strand breaks, friction wear and, corrosion result in durability loss. A visual method used to be in service for the crane and elevator rope inspection. But it is not adequate to the real durability of the ropes under inspection.

A magnetic method is much more reliable for the inspection. The number of this kind flaw detectors have been used many years to inspect mine hoist ropes. It takes skilled and experienced personnel to interpret an inspection information of the flaw detectors.

The new INTROS magnetic flaw detector based on a single-chip computer was designed to get an inspection protocol as the objective document, according to the standard (1).

The instrument is implemented in two modifications: a portable one, for crane and elevator ropes, and another one, for mine hoists and air ropeways. Both modes use the same portable electronic unit. The unit is able to store information about 1000 m of a rope under test. The information can be logged into an external computer for processing, displaying and printing.

The INTROS software is intended to gather information about rope condition in details.

Reference:
1. ASTM Standard E-1571-94

Abstract Source:
Book of Abstracts, 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN: 87-986898-0-00

Full-Text Source:
Proceedings of the 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN:

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