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FAILURE ANALYSIS OF THE CONVEYOR CHAIN PINS: A CASE STUDY OF A SUGAR FACTORY |
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| รหัสดีโอไอ | |
| Creator | 1. Narong Wichapa 2. Somsak Homdee |
| Title | FAILURE ANALYSIS OF THE CONVEYOR CHAIN PINS: A CASE STUDY OF A SUGAR FACTORY |
| Publisher | Faculty of Engineering, Khon Kaen Univeristy |
| Publication Year | 2553 |
| Journal Title | KKU Engineering Journal |
| Journal Vol. | 37 |
| Journal No. | 3 |
| Page no. | 229-236 |
| Keyword | Failure Analysis, Chain Connecting Pins, Bushings, Abrasive Wear,Friction Torque |
| ISSN | 0125-8273 |
| Abstract | The objective of this research is to analyze the failure of the chain connecting pins in the first cane extraction unit of a sugar factory. In this study, the surface damage of the failed conveyor chain pins and bushings were examined, the hardness and the chemical composition were tested, and the conveyor chain working mechanisms were studied. The analysis of failure type, the cause of failure, and the cause of severe damage of the connecting pins were then performed. The fracture photographs from scanning electron microscope reveals groove and ridge pattern on the surfaces of failed connecting pins. This result indicates that the failure of the chain connecting pins occurs by abrasive wear. The study of the conveyor chain working mechanisms indicates that the friction torque between pins and bushings is the cause of the worn surface of these pins. The severe damage of the connecting pins occurs by high friction torque on the pin surface due to the stretching and climbing on the sprocket of the chain. |
