Thermal shock protection in pre-drying of Kejia dental porcelain furnace
Time：2020-10-16 10:04 Click：
In each sintering process of dental porcelain powder, pre-drying and closing the lid are the first steps. A good burning effect also starts from this point. If there is an error in the pre-drying process that leads to a bad burning effect, a series of subsequent sintering procedures are needed to make up. KJ-B1600-4L-IT series porcelain furnace provides a variety of options for controlling the pre-drying program.
Dental technicians have many possibilities to control the closure of the furnace lid. On the one hand, before the sintering program runs, the restoration is pre-dried using the residual heat in the furnace within the set closing time. Another option is to control and limit the temperature range of residual heat by activating the temperature set in the furnace during the lid closing process. In this regard, KJ-B1600-4L-IT porcelain furnace provides a pre-drying function. The high-end porcelain furnace allows users to individually set the pre-drying stage and time. However, in daily work, the technician will follow the manufacturer's instructions and the furnace only controls the pre-drying time and not the heating during the closing process. Various negative influencing factors, such as excessively high temperature in the furnace, will lead to poor burning effect. For the KJ-B1600-4L-IT porcelain furnace with TSP function, these important influencing factors have been specially considered and effectively controlled.
The main principle of the KJ-B1600-4L-IT (TSP) function: When the program is started, the heat available in the furnace is evaluated, and the porcelain furnace calculates the most suitable lid movement based on this. Subsequently, the furnace will move the furnace to the restoration in the most suitable way, and close the furnace within the set pre-drying time. This means that when there is a lot of heat in the furnace, the porcelain furnace needs to wait a long time until the furnace moves closer to the restoration from its original state. On the other hand, the open hearth will ensure rapid cooling.
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