It happens very often that people looking for refractory material get confused between Insulating Bricks and Dense Firebricks. While both of them have refractory properties and are able to sustain extremely high temperatures, the feature that differentiates the two is that Insulation Bricks do not absorb heat whereas Firebricks do. The other difference is that the former ones are lighter and the latter ones are heavy. For applications where thermal insulation is needed, Insulating Bricks are to be used. Made with aluminum and silica, these bricks are typically used as a back-up lining in kilns and furnaces and also as a primary hot face refractory lining.
Insulating Value: Depending on your application’s requirements you should check the insulation ratings of the bricks. The formula of ‘higher the insulation value, higher the price’ is applicable most of the times, so do not go for exceedingly high ratings than what is actually required. Needless to say, going below that value is not even an option.
Purity Levels: Iron and alkali flux content are some of the commonly found impurities which affect the performance of bricks. Unless you get a sample of bricks and test them, there is no way to know about it but trust the word of your Insulating Bricks Manufacturer. Buy from them only when you have established a reasonable level of trust.
Dimensional Accuracy: This is one of the crucial factors to consider as it directly affects the performance of bricks. This might sound absurd as how can precise measurements affect quality? But think, when you are getting them installed and due to the inaccuracies, gaps are being left between bricks. This would mean heat loss through those gaps. Some Insulating Bricks Manufacturers in Ahmedabad offer them in customized shapes as well to suit your specific requirements.
Low Heat Storage: If Insulation Bricks start absorbing heat instead of offering protection against them, the purpose of their installation would be completely defeated. Thermal conductivity of bricks should be as low as possible.
With kilns, furnaces and other such heated work areas, the operating temperatures are exceedingly high. Thusly, installing reliable material for such operations is of immense importance. So be sure of the quality before you ask for quotes from different suppliers.
This entry was posted on June, 05, 2015 at 11 : 05 am and is filed under Insulating Bricks. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response from your own site.