Heatable tool

摘要

A heatable tool for a device processing plastic melt or metal melt includes a tool body having a tool surface intended for contacting a melt, with the tool body including a tool carrier having a receptacle. An electrically conducting ceramic is constructed as insert for placement in the receptacle for heating at least an area of the tool surface and includes cooling channels for passage of a coolant. The electrically conducting ceramic is arranged on at least one electrically conducting surface for feeding electric energy to the electrically conducting ceramic, wherein electric feed lines to the electrically conducting surface and the cooling channels are constructed for detachable connection such that the electrically conducting ceramic is replaceable with another electrically conducting ceramic for providing a cavity of different configuration.