Definition of ball clay in English:

ball clay

noun

mass noun

单词	ball clay
释义	Definition of ball clay in English: ball clay noun mass noun A fine-textured clay used in the manufacture of ceramics. 球黏土，球土（制陶用细黏土） Example sentencesExamples I have a temmoku recipe that calls for dark ball clay, and we have none in our classroom supplies. If a light firing ball clay composition is required, use Starcast with perhaps some Foundry Hill Creme. These categories are ball clay, bentonite, common clay, fire clay, fuller's earth, and kaolin. Experienced technicians can pinpoint with great accuracy different types of ball clay within each pit. I work with a low-fire clay body consisting of ball clay, talc and bentonite. Extraction continues today at 6 quarries in Purbeck and the ball clay is processed at Furzebrook. The wide use of ball clay is mainly due to its contribution of workability, plasticity and strength to the bodies in drying. By 1979, the ball clay industry was producing over 900,000 tons annually for industrial users worldwide.
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