Failure analysis of ring die of a feed pellet machine
The severely worn position and failure mechanisms of the ring die of a feed pellet machine were investigated. The macroscopic and microscopic morphologies of the failed surface, the chemical composition and mechanical properties of the collected samples were analyzed using scanning electron microsco...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Foundry Journal Agency
2020-03-01
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| Series: | China Foundry |
| Subjects: | |
| Online Access: | http://ff.foundryworld.com/uploadfile/2020042431880933.pdf |
| _version_ | 1818520135490600960 |
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| author | He-da Bai Bao-chao Zheng Wei Li |
| author_facet | He-da Bai Bao-chao Zheng Wei Li |
| author_sort | He-da Bai |
| collection | DOAJ |
| description | The severely worn position and failure mechanisms of the ring die of a feed pellet machine were investigated. The macroscopic and microscopic morphologies of the failed surface, the chemical composition and mechanical properties of the collected samples were analyzed using scanning electron microscopy, energy disperse spectroscopy, optical emission spectrometry, and a universal testing machine. Results show that the dip angle at the entrance of the ring die hole between the roller and ring die was severely worn. The feed powder could not be fully extruded through the dip angle at the entrance of the ring die holes, thus the density of the feed particles produced could not meet the requirements. Therefore, abrasive wear under high stress is the main reason of failure at the entrance of the ring die holes under the action of feeding powder; and cutting and fatigue spalling lead to substantial material loss. In addition, a high damp-heat environment aggravates abrasive wear on the die hole internal surface. |
| first_indexed | 2024-12-11T01:33:19Z |
| format | Article |
| id | doaj.art-2ce4734953c445c8b4bcecc040b8100a |
| institution | Directory Open Access Journal |
| issn | 1672-6421 1672-6421 |
| language | English |
| last_indexed | 2024-12-11T01:33:19Z |
| publishDate | 2020-03-01 |
| publisher | Foundry Journal Agency |
| record_format | Article |
| series | China Foundry |
| spelling | doaj.art-2ce4734953c445c8b4bcecc040b8100a2022-12-22T01:25:18ZengFoundry Journal AgencyChina Foundry1672-64211672-64212020-03-0117216717210.1007/s41230-020-9104-8Failure analysis of ring die of a feed pellet machineHe-da Bai0Bao-chao Zheng1Wei Li2School of Comprehensive Foundation Studies and Applied Statistics, Zhuhai College of Jilin University, Zhuhai 519041, Guangdong, ChinaInstitute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China.Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China.The severely worn position and failure mechanisms of the ring die of a feed pellet machine were investigated. The macroscopic and microscopic morphologies of the failed surface, the chemical composition and mechanical properties of the collected samples were analyzed using scanning electron microscopy, energy disperse spectroscopy, optical emission spectrometry, and a universal testing machine. Results show that the dip angle at the entrance of the ring die hole between the roller and ring die was severely worn. The feed powder could not be fully extruded through the dip angle at the entrance of the ring die holes, thus the density of the feed particles produced could not meet the requirements. Therefore, abrasive wear under high stress is the main reason of failure at the entrance of the ring die holes under the action of feeding powder; and cutting and fatigue spalling lead to substantial material loss. In addition, a high damp-heat environment aggravates abrasive wear on the die hole internal surface.http://ff.foundryworld.com/uploadfile/2020042431880933.pdfring die; failure analysis; micro-cutting wear; fatigue-exfoliative wear; electrochemical corrosion |
| spellingShingle | He-da Bai Bao-chao Zheng Wei Li Failure analysis of ring die of a feed pellet machine China Foundry ring die; failure analysis; micro-cutting wear; fatigue-exfoliative wear; electrochemical corrosion |
| title | Failure analysis of ring die of a feed pellet machine |
| title_full | Failure analysis of ring die of a feed pellet machine |
| title_fullStr | Failure analysis of ring die of a feed pellet machine |
| title_full_unstemmed | Failure analysis of ring die of a feed pellet machine |
| title_short | Failure analysis of ring die of a feed pellet machine |
| title_sort | failure analysis of ring die of a feed pellet machine |
| topic | ring die; failure analysis; micro-cutting wear; fatigue-exfoliative wear; electrochemical corrosion |
| url | http://ff.foundryworld.com/uploadfile/2020042431880933.pdf |
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