Refractories Co., Ltd., Zhengzhou City shangzhuang tell you brick has a residual swell and heavy firing shrinkage performance, general brick linear expansion and contraction song money as shown below. 800 degrees before presenting linear expansion, after the price began to shrink clay, to 1200 degrees shrink up to 1%. After start suddenly swell to 1300 degrees up to 4%, which is due to pores in the surface of the brick is closed, due to gas expansion caused by swelling, softening of the surface after the gas exhaust products exhibit great shrinkage. Shangzhuang Refractories Co., Ltd., Zhengzhou City, to tell you the refractory brick is acidic, weakly acidic slag erosion resistance ability clay, for resistance to acidic and basic slag poor. Improve product density brick factory, reduce porosity, slag resistance can improve the product. Increasing mass fraction Al203 wholesale clay, slag alkali resistance to erosion increase with increasing mass fraction of SiO2, acid-resistant slag capacity enhancement. Shangzhuang Refractories (Figure) _ Price _ brick by brick Lhasa shangzhuang Refractories Co., Ltd., Zhengzhou City. Zhengzhou City shangzhuang Refractories Co. (www.yntjj.com.cn) (www.yntjj.com.cn) located in Zhengzhou City Xinmi shangzhuang Industrial Development Zone. Scraps and development in the wave of market economy, is still Zhuang Refractories has a high profile in the charge, flux, and enjoys a good reputation. Shangzhuang Refractories made whole network business alliance certification, marking our service and management level has reached a new height. Shangzhuang Refractories staff willing to work with all people of insight and common development, for a better future.