The batch mixes for floor bricks were synthesized on the basis of fusible clay, infusible clay and fluxes.

以易熔粘土为基，并引入难熔粘土和熔剂成分， 合成了地砖坯料。

The results show that the main compositions of the infusible matters are zinc oxide and the part of copper oxide that are brought in the process of casting.

分析结果表明，不熔物主要成分是氧化锌及部分氧化铜，主要是在熔铸时抽心夹入。