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.
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