Zhengzhou City shangzhuang Refractories Co., Ltd understands the degree of sintering alumina bricks and firing atmosphere and volatiles present in the gas phase has a great influence on the high aluminum product surface mesh cracks. Poor clinker sintering products continue to shrink in the firing process, causing cracking and cracking products; and sintering alumina brick clinker bad price, the second mullitization insufficient, articles in the firing process, the clinker Second itself mullitization is continuing, which is caused by an inherent inconsistency shrinkage factor alumina brick sales, resulting in a net increase product increase in the number of cracks and cracking degree. Refractories Co., Ltd., Zhengzhou City shangzhuang learned alumina brick surface network of cracks more products produced in the brick yard brick surface cracks. It can be inferred that when the kiln excess air coefficient, or produce a reducing atmosphere, due to the small cracks between the blocks Which alumina brick, carbon monoxide (CO) tends to stay high alumina brick in these places, so that the products of iron (Fe2O3) is reduced to ferrous oxide (FeO); facing brick surface channel airflow is smoother, it is not affected by changes in the atmosphere, there is no network of cracks generation. Of particular note is that in the firing process should try to avoid frequent changes in the nature of the combustion atmosphere. Therefore, the role of this change will alternate surface damage. Alumina bricks agent _ _ Lanzhou shangzhuang refractory high alumina brick by shangzhuang Refractories Co., Ltd., Zhengzhou City. Zhengzhou City shangzhuang Refractories Co. (www.yntjj.com.cn) (www.yntjj.com.cn) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!