There are many ways to judge whether the quality of the refractory bricks used meets the standard, such as specifications, hardness, etc., but it is relatively easy to analyze. From color to brick quality. How to judge, what is the effect?
1. Usually the color of refractory bricks is light yellow and brownish yellow, sometimes dark brown, sometimes brown and black spots, dark brown indicates high iron oxide content, light yellow and yellow are usually the colors.
2. However, light yellow does not mean high refractoriness, because refractory bricks contain white impurities. Bricks with a yellow and yellowish appearance are available for purchase, but the melting point of the refractory brick is tested to ensure that it has reached the sintering temperature.
Users who are not good at judging the quality of refractory bricks can analyze the quality from the perspective of color, so that they can quickly judge the quality of the bricks selected for purchase.
