Fired bricks are often used in squares,landscaping,garden balconies,and other places in our daily lives.They can be seen everywhere.In addition to their aesthetic appeal,their anti-corrosion properties are also reasons why people favor them.This is inseparable from their excellent roasting process.In previous articles,we discussed its roasting process,and the quality of the roasting process is crucial for its formation.Today,let's learn about the key points that need to be paid attention to during its roasting process in production.
1.Baking is a crucial step in the brick making process.During roasting,the roasting temperature should be controlled between 900 and 1100℃to partially melt and sinter the brick body.
2.The specific gravity of impurities in raw materials can also have a significant impact on the firing temperature of fired bricks and the color of finished products,so attention should also be paid to the selection of raw materials.
3.When the roasting temperature is too high or the time is too long,it is easy to produce overheated bricks.
4.The characteristics of burnt bricks are dark color,crisp knocking sound,and large deformation.
5.When the roasting temperature is too low or the time is insufficient,it is easy to produce undercooked bricks.
6.The characteristics of low fire bricks are light color,dull knocking sound,low strength,high water absorption rate,and poor durability.
7.When fired in a brick kiln under an oxidizing atmosphere,the bricks turn red due to the formation of Fe2O3,which is called red bricks.
The above is the key points of firing fired bricks.In our actual production,pay more attention to the above points,and the fired bricks we produce will have better performance,better quality,and more beautiful appearance,thus having a wider range of applications.