Measurement of tight in steel ropes by a mean of thermovision

• Destruction place of the rope is marked as the threshold tension at the level of 72% of destruction tension.
• Weakest loop of a chain is marked as the threshold tension at the level of 62% of destruction tension.
• Thermovision detects the weekests places on chains and ropes having certain tenseness.
• We are able to predict the place of disruption on a rope or chain by means of thermovision and suitable conditions.

If tenseness in a wire causes its warming, the weakest place of the rope will react – it will became the warmest. If it is possible to predict the place/point of destruction of a rope or a chain by a means of tenseness causing warming, than it is also possible to search for disruptions on static ropes, but at suitable conditions. Destructive and non-destructive measurements were combined in order to detect disruptions on ropes and chains. Our experiments proved that at certain conditions the use of thermovision for detection of weak places on loaded ropes and chains is applicable. Above mentioned methodology was applied on static ropes in the place where it is not possible to perform regular NDT and at the places where ropes enter socket baskets.

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