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Major process for remote fabrication | Remote operation tasks | Remote handling systems to be used |
MSM | Crane | Viewing window | Movable camera | Tools |
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Preparation | - Breaking vacuum inside ICF - Loosening ring connectors to separate upper chamber from the lower chamber of ICF | O | | O | | O |
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- Opening ring connectors in left and right directions to secure room for lifting the upper chamber upwards | O | | O | | |
- Separating and lifting the upper chamber from the lower chamber and moving it onto mold housing nearby | O | | O | | |
Transferring and positioning crucible into IF (step 1 in Figure 6) | - Placing hanger in crane hook | O | O | O | | O |
- Connecting open-end of hanger to crucible cap - Transferring and placing crucible cap onto top of crucible filled with input materials and covering crucible with it | O | O | O | | O |
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- Transferring and loading crucible covered with crucible cap onto spiral-shaped high frequency induction coil located inside lower chamber (see Figure 7) | O | O | O | O | O |
- Removing crucible cap from the top of crucible (see Figure 8) | O | O | O | O | O |
- Covering top of crucible with furnace cap installed inside the lower chamber | O | | O | O | |
Loading and transferring of empty quartz mold assembly (steps 2 and 3 in Figure 6) | - Loading mold assembly with empty quartz molds located inside mold housing onto center of interior bottom side of the upper chamber (see Figure 9) | O | | O | O | |
- Moving upper chamber with empty quartz mold assembly into the lower chamber - Closing upper chamber and tightening upper and lower chambers of ICF | O | | O | | O |
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Casting (step 4 in Figure 6) | - Opening furnace cap when input materials in crucible are sufficiently melted at desired temperature | O | | O | | |
- Casting inside ICF completed electrically by manual operation | | | | | |
Retrieval of cast quartz mold assembly (step 5 in Figure 6) | - After completing injection casting in ICF, following same steps as in “preparation” to separate and lift upper chamber with cast quartz mold assembly from the lower chamber - Moving the upper chamber onto mold housing and unloading cast quartz mold assembly into mold housing | O | | O | O | O |
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Retrieval of used crucible (step 7 in Figure 6) | - Placing hanger in crane hook and connecting open-end of hanger to crucible cap - Transferring crucible cap to top of used crucible located inside lower chamber and covering used crucible with it - Transferring used crucible with crucible cap outside ICF | O | O | O | O | O |
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