Student 2
Case 2: Mobile Pelletizing Machine Malfunction Repair
This case study will discuss a malfunction found in a mobile pelletizing machine. The machine in question is an automated mobile pelletizer that pelletizes vermiculite, silica sand, and clay. A technician was brought in to fix the malfunctioning machine, and this report presents the findings from the repair process.
Phenomenon
The machine was malfunctioning because the pelletizing chamber, which the vermiculite, sand, and clay pass through, had been weakened by a previous technician’s repair methods. The pelletizing chamber’s frame was made up of steel but had been recently braced with aluminum brackets and screws. The aluminum material was slowly corroding and causing the frame to weaken, leading to irregularities and cracks in the chamber.
Analysis
After a thorough inspection of the machine, it was determined that the malfunction was caused by the corrosion of the aluminum brackets and screws used to brace the frame of the pelletizing chamber. The corrosion was the result of the aluminum being exposed to air and water, which caused the material to oxidize. This oxidation process weakened the strength of the brackets and screws and caused them to eventually break down, leading to the weakening of the frame.
Solution
To solve this problem, the technician replaced the aluminum brackets and screws with steel material. The steel material is much stronger and resistant to corrosion, ensuring that it will last a long time and not contribute to future malfunctions. Additionally, the technicial applied a protective coating to the screws and brackets to further strengthen their durability.
Result
After completing the repair, the technician tested the machine and confirmed that it was now operating correctly. This was a successful repair, as the machine is now able to efficiently pelletize vermiculite, silica sand, and clay without any further malfunctions.
Conclusion
This case study serves as an example of how to effectively resolve a malfunctioning machine. By understanding the root cause of the malfunction, performing a thorough inspection of the machine, and implementing the proper changes, the technician was able to quickly and effectively repair the machine. This case study highlights the importance of knowing how to properly maintain and repair a machine if it ever experiences a malfunction.
