Study on the failure of guide ropes used in mines
IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad
View Archive Info| Field | Value | |
| Title |
Study on the failure of guide ropes used in mines
|
|
| Creator |
Singh, M.K.
Mallick, Mousmi Verma, M.K. |
|
| Subject |
Material Testing
|
|
| Description |
The skips/cages in mine hoisting have to be guided to achieve high hoisting rates. Steel guide ropes are used in hoisting because they can safely guide the skips/cages and have been observed to be economical. Guide ropes are static in nature and are thus more prone to corrosion. An investigation into the causes of failure of a guide rope is discussed in this paper. The study consists of physical examination, examination of wear and corrosion, macro- and micro-examination, examination of the breaking load and individual tensile strength measurement of the rod. The main cause of failure is found to be corrosion. Heavy abrasion and corrosion together causes a substantial reduction in diameter of more than 60%. Corrosion raises the stress level and thereby weakens the grains, which is indicated by the cracks that have developed all along the grains as revealed through micro-examination. This affects the breaking strength and reveals a 37% loss of strength, as a result of which failure occurs.
|
|
| Publisher |
British Institute of Non-Destructive Testing
|
|
| Date |
2021-06
|
|
| Type |
Article
PeerReviewed |
|
| Relation |
https://doi.org/10.1784/insi.2021.63.6.357
http://cimfr.csircentral.net/2384/ |
|
| Identifier |
Singh, M.K. and Mallick, Mousmi and Verma, M.K. (2021) Study on the failure of guide ropes used in mines. Insight, 63 (6). pp. 357-361. ISSN 1354-2575
|
|