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Pdf on jan 1, 2006, milivoje m. kostic and others published design of extrusion dies we use cookies to make interactions with our website easy and meaningful, to better understand the use of our ...
The glass melts and forms a thin film, 20 to 30 mils (0.5 to 0.75 mm), in order to separate it from chamber walls and allow it to act as a lubricant. a thick solid glass ring that is 0.25 to 0.75 in (6 to 18 mm) thick is placed in the chamber on the die to lubricate the extrusion as it is forced through the die.

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