To judge whether the quality of the refractory brick used is up to standard, we will use many methods to judge, for example, according to its specifications, hardness and other judgments are more commonly used methods. Relatively speaking, it is more straightforward to analyze the quality of bricks from the color. A method of judging, how does it work?
1. Generally, the color of refractory bricks is light yellow and brownish yellow, sometimes dark brown, sometimes with some brown and black spots. Dark brown indicates high iron oxide content, and light yellow and yellow are normal colors.
2. However, light yellow does not indicate high refractoriness, because there are also white impurities in refractory bricks. Bricks with yellow and light yellow appearances can be purchased, but the melting point of refractory bricks needs to be tested to ensure that the sintering temperature is reached.
For users who are not very good at judging the quality of refractory bricks, they can analyze their quality from the perspective of color, so that when purchasing, you can quickly determine the quality of the selected bricks.
