Key Aspects of Ashing Furnace Design
Ashing furnaces are used to quantify the change in weight from a sample as one or more components are burned away. When choosing an ashing furnace, it is necessary to consider if it will be used in one specific process or if it will also be used for general heat treatment applications. Some ashing furnaces will also need to adhere to strict testing standards or be exposed to fumes which could damage the furnace or create a health hazard. The furnace must also be chosen with sample size and potential contamination risk in mind.
Ashing furnaces employ controlled airflows and high-temperature heating elements, making them well-suited to burning samples in air at controlled rates. This helps them to precisely calculate the volume of incombustible compounds which are present. This means the heating chamber atmosphere must be meticulously controlled by the use of air metering and exhaustion to allow for numerous air changes per minute.
The ashing furnace’s consist heating element is used to combust material inside an enclosure and often a weighing scale which are used for weighing materials before, during and after combustion.