Digitalfire Ceramic Glossary



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Dust Pressing


A method of fabricating ceramic objects (typically brick, tile and sometimes flatware) where powder of controlled water content (typically 6-8%) is pressed under high pressure (e.g. 500 kg/cm2) into metal molds. This method of production requires minimal drying facilities and lends itself well to mass production in a continuous process. In recent years companies have learned how to press and fire tiles of more than one square meter. The tile sector of ceramic industry is by far the largest and it has seen amazing automation and innovation in recent years. Large tile manufacturing plants measure their output in square kilometers. The largest tile producing countries include Spain, Turkey, Italy, Vietnam but dozens of countries around the world produce tile.

The press and kiln are the backbone of most production plants. Large manufacturers hire press managers, supervisors, operators, mechanics and feed operators. Potters and small manufacturers almost never use this production method. However it has great potential for anyone. Interestingly, the burden of making it work well is more on mechanical personnel rather than ceramic technicians, making it more accessible in many places.

Pictures

Raw Material Preparation and Forming of Ceramic Tiles - book

This book is in Italian (unfortunately none of the world's tile producing countries speak alot of English). Yet the tile industry is the largest single market segment in ceramics and the largest user of materials and energy. The tile industry is at the cutting edge of inkjet, engobe, specialty glaze and firing technology. They are also experts at dust pressing. This book can be found at http://www.tiledizioni.it.

Out Bound Links

In Bound Links


By Tony Hansen




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