The term special glass refers to a wide range of technical glasses with highly different chemical compositions and functions which are designed for special applications. Special glass features high cost, special functions, production complexity and diversity, and technological progress.
Special glasses use highly different furnaces and manufacturing procedures. Many methods have been applied into the manufacturing process of special glass, including electric heating, high frequency induction heating, multi-crucible melting, high pressure vacuum melting, solar furnace melting, plasma flame to melt and laser melting.
New technology is the key to competitiveness and originality. The glass manufacturers require technological progress in order to stay ahead. In addition, however, to improved control over production techniques, the glass manufacturers also seeks longer furnace life and increased pull in order to lower the cost. The refractory materials are the key factor that affects the furnace life and the cost.
The manufacturing of special glass has higher requirement for refractories materials. The main refractory materials for the manufacturing of special glass are zirconia refractories. One of the zirconia refractories is fused cast high zirconia block. It is a kind of novel refractory specially developed for the glass furnaces.
Fused cast high zirconia bricks are made of artificial synthesis high purity raw materials through special casting process. The crystalline texture consists of baddeleyite and with the characteristics of excellent high temperature and corrosion resistance, and low blister and stoning potential. These advantages can prevent liquid glass from pollution effectively and reduce or avoid many glass defects caused by fused cast AZS block.
Fused cast high zirconia brick has wide application in a wide range of super high temperature furnaces and kilns in military industry, science research, high melting point Metallurgical, laser crystal and electronic,etc. It is ideal for high quality and special glass furnaces such as TV glass, Borosilicate glass, Alumina silicate glass, Halogen lighting glass, Opal glass and Fiber glass. It is usually used in sidewall, throat cover, throat support, electrode block, dam block parts of the glass furnaces.
Sunrise is a refractory material supplier from Zhengzhou, China, supplying high quality fused cast high zirconia block. Sunrise will be present at Vitrum 2015 in Milan, Italy from October 6, 2015 to October 9, 2015. Visit us at Booth U13, Hall 22.