4.8
Post-Operation Cooling
After the completion of testing, the furnace must be allowed to cool gradually.
Ceramic work tubes are subject to thermal expansion when heated to high
temperatures, increasing in both length and diameter. Rapid changes in temperature
can cause stress upon the work tube material which may cause it to break; a process
known as thermal shock.
To mitigate the risk of thermal shock to the work tube, a cool down rate
no greater
than 5°C per minute
is recommended.
Note:
The customer is responsible for any damage to the furnace caused by
exceeding the recommended cool down rate.
Note:
Because the exact details of the customer's process are unknown,
it is not possible to account for process-specific wear to the work tube
material. The working life of the work tube is variable and depends
entirely on the operating temperatures, program ramp rates, and
properties of the materials being heated. Subsequently the work tube is
classed as a consumable item and is not covered by the standard
Carbolite Gero warranty terms.
45
Summary of Contents for CARBOLITE GERO CAF G5
Page 63: ...Fig 3 Front Tube Seal Assembly Fig 4 Door Arm Assembly 63 ...
Page 64: ...Fig 5a Camera Mounting Bracket Fig 5b Lens and Camera Assembly 64 ...
Page 65: ...Fig 5c Sliding the Camera Mounting Bracket Assembly onto the Door Arm 65 ...
Page 66: ...Fig 5d Securing the Camera Mounting Bracket Assembly to the Door Arm 66 ...
Page 67: ...Fig 5e Mounting the Lens and Camera Assembly 67 ...
Page 68: ...Fig 5f Lens and Camera Assembly in Position 68 ...
Page 69: ...Fig 6a Rear View of the Standard CAF G5 Furnace Showing Brick Box Assembly 69 ...
Page 71: ...Fig 7 Front Tube Seal Position 71 ...
Page 72: ...Fig 8 Tube End Seal Assembly Tightening Sequence Fig 9 Work Tube Front Support 72 ...
Page 73: ...Fig 10 Fitting the Door Arm Assembly Fig 10a Adjusting the Door Arm Assembly 73 ...
Page 74: ...Fig 11a Furnace Case and Controls 74 ...
Page 75: ...Fig 11b Gas Inlet Pipe Fig 12 Positioning the Furnace 75 ...
Page 77: ...Fig 13c Loading Samples into the Work Tube 77 ...
Page 78: ...Fig 16 File Folder 78 ...
Page 79: ...Fig 17 Door Arm Assembly Exploded View 79 ...
Page 82: ...SST DT HT FT Fig 18 Report Sheet Page 2 Side View Plan View Fig 19 Formed Wire Sample 82 ...
Page 83: ...Fig 20 Sample Carrier Sample Tiles and Sample Positions 83 ...
Page 84: ...Fig 21a Coal and Coke Test Piece Mould Fig 21b Biomass Test Piece Mould and Hand Press 84 ...
Page 85: ...Fig 22 Sample Loading Tool Fig 23 Camera Ethernet Connection 85 ...
Page 86: ...Fig 24 LED Driver Connection 86 ...
Page 87: ...Notes Service Record Engineer Name Date Record of Work ...