Furnace having a dynamic temperature gradient

摘要

A furnace (10) is described which has a number of electrically insulating support members (12) which have a central opening (14) and which are arranged next to one another and at a spacing from one another in such a way that the central openings (14) define a furnace space (20). Provided between adjacent support members (12) are heating elements (18) which are arranged in the vicinity of the central furnace space (20) and for the purpose of producing a dynamic temperature gradient can be supplied individually or in groups with different quantities of energy. In order to achieve a quick dynamic response, the ratio of the dimension of the heating elements (18) in the direction of the thickness of support members (12) to the thickness dimension of the individual support members (12) amounts to at least 2:1, preferably to 3:1. <IMAGE>