试论制劈离砖陶瓷原料的选择

PRELIMINARY DISCUSSION ON THE RAW MATERIAL SELECTION IN PILI TILES PRODUCTION

劈离砖是当前建材市场重要商品，生产工艺独特，对陶土和瓷土原料要求严格。烧制过程经历低温阶段、氧化分解阶段、高温烧成阶段，不同颜色是由不同发色金属元素所致，因而必须对劈离砖陶瓷原料进行认真选择和分析测试，并在生产中注意降低成本。

Pili Tile is an important commodity in building material market,its production technology is peculiar and is strict with pottery and porcelain clay. The sintered process includes low temperature stage, oxidized decomposition stage and high temporature sintered stage. Its different colors are caused by different coloured metal elements. Hence it is necessary to select and analyse the raw material of pottery and porcelain clay of Pili Tile conscientiously,and to lay stresson cutting down production cost to raise economic benefit.