Rohde Fusing Serie Notice D'utilisation page 95

7.4. Initial firing
7.4.1. General safety information
CAUTION
Risk of personal injury and property damage:
Before putting the kiln into operation, all packaging materials must be removed, such as
cardboard boxes, protective films, adhesive tapes, etc., which were used to protect the
kiln.
7.4.2. Description
The kiln must have an initial firing before operation. This process is called dry firing. An initial firing by means of dry
firing is necessary to remove residual moisture from the kiln.
Setting parameters for the initial firing:
Parameter
Heating rate
End temperature
Soak time
The following special features apply to the initial firing:
• Carry out the initial firing before the kiln goes into daily use.
• Carry out the initial firing without ware.
• New, unused furniture material can be cured at the same time as the dry firing.
• The longer the initial soak period, the better it is for the service life of the heating elements.
• After dry firing, allow the kiln to cool down naturally with the lid closed. This process can take several hours
and helps extend the life of the kiln.
• During the initial firing, burning organic binders in the insulation material may cause an unpleasant odour
under certain circumstances. However, there is no health hazard.
• Fine cracks can also appear in the insulating firebricks due to large temperature differences. These fine
cracks do not influence the firing quality, indicate a reduction in the quality of the firebricks or give grounds for
complaint.
7.4.3. Empty firing
Always carry out an empty firing after every 20 firings (see Section 9.2). The empty firing is necessary to remove
impurities from the kiln. The empty firing does not replace the regular cleaning of the kiln and the firing chamber.
Value to be set
100 °C/h
900 °C
At least 1 h 30 min
93 / 298 - EN -