AN APPARATUS FOR AND A METHOD OF MICROWAVE HEATING OF ROTATABLE ARTICLES, ESPECIALLY GREEN TYRE BLANKS

摘要

The invention relates to an apparatus for and a method of microwave heating of rotatable articles, wherein the apparatus comprises at least one microwave radiation source (12), at least one wave guide (11) and a heating chamber (5) for receiving a rotatable article which comprises a material absorbing microwave radiation. Each microwave radiation source (12) is connected to the heating chamber (5) via at least one wave guide (11) having at least one inlet in a lateral wall of the heating chamber (5). At least one cover (6) is mounted in the heating chamber (5) and/or at least one cover (6) is vertically slidable relative to the lateral wall of the heating chamber (5) in combination with at least one cover (6) comprising a stationary ring (13) on the outer circumference of said area and at least one extendable portion (14) on the inner circumference of said area.